FR2531094A1 - Continuous prepn. of prods. from thermoplastic-elastic material - Google Patents
Continuous prepn. of prods. from thermoplastic-elastic material Download PDFInfo
- Publication number
- FR2531094A1 FR2531094A1 FR8312396A FR8312396A FR2531094A1 FR 2531094 A1 FR2531094 A1 FR 2531094A1 FR 8312396 A FR8312396 A FR 8312396A FR 8312396 A FR8312396 A FR 8312396A FR 2531094 A1 FR2531094 A1 FR 2531094A1
- Authority
- FR
- France
- Prior art keywords
- thermoplastic material
- partially
- temperature
- elastic thermoplastic
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013013 elastic material Substances 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000004132 cross linking Methods 0.000 claims abstract description 14
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 11
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 14
- 150000002978 peroxides Chemical class 0.000 claims description 10
- 229920001169 thermoplastic Polymers 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims description 7
- 239000012764 mineral filler Substances 0.000 claims description 6
- 239000012766 organic filler Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims 5
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims 1
- 239000003963 antioxidant agent Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 230000009916 joint effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 2
- 230000002301 combined effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000008240 homogeneous mixture Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- -1 dicumyl peroxide Chemical class 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
La présente invention concerne un procédé destiné i obtenir des produits en matériauthermoplastique, partiellement ou totalement réticulés0
On sait que les masses thermoplastiques réticulées peuvent être obtenues, lorsqu'une composition additionnée de peroxyde est extrudée sous forme continue, après quoi le produit d'extrusion est réticulé dans une étuve à la température convenable
On a découvert qu'il était possible d'obtenir des avantages substantiels, aussi bien économiques que techniques, en opérant conformément au procédé de la présente invention0 Il est question ici d'un procédé destiné à obtenir une masse thermoplastique élastique partiellement ou totalement réticulée, caractérisé par le fait que la réticulation est réalisée dans-leinstallation de transformation elle-m & e et peut Etre réalisée, après réticulation dans une installation classique, en utilisant un peroxyde comme agent de réticulation, ainsi que diverses quantités d'un agent accélérateur formé de polymères non saturés polyoléfines et de charges minérales et/ou organiques, qui concourent à donner-d la masse, en fin de traitement, une thermoplasticité, une élasticité et une résistance mécanique réellement surprenantes,
La présente invention consiste en un procédé destiné à la fabrication continue d'une masse thermoplastique élastique partiellement ou totalement réticulée, en partant diun mélange de composants, dont une partie comprend des polymères non saturés polyoléfines, des charges minérales et/ou organiques, des additifs destinés à réguler et conserver des propriétés déterminées, et un agent réticulant avec ou sans incorporation d'un additif régulateur de la réticulation.The present invention relates to a process intended for obtaining products made of thermoplastic material, partially or totally crosslinked.
It is known that the crosslinked thermoplastic masses can be obtained when a composition containing peroxide is extruded in continuous form, after which the extrusion product is crosslinked in an oven at the suitable temperature.
It has been discovered that it is possible to obtain substantial advantages, both economic and technical, by operating in accordance with the process of the present invention. This is a process intended to obtain a partially or fully crosslinked elastic thermoplastic mass, characterized by the fact that the crosslinking is carried out in the processing installation itself and can be carried out, after crosslinking in a conventional installation, using a peroxide as crosslinking agent, as well as various amounts of an accelerating agent formed polyolefin unsaturated polymers and mineral and / or organic fillers, which contribute to giving mass, at the end of the treatment, a truly surprising thermoplasticity, elasticity and mechanical resistance,
The present invention consists of a process intended for the continuous manufacture of a partially or totally crosslinked elastic thermoplastic mass, starting from a mixture of components, part of which comprises polyolefin unsaturated polymers, mineral and / or organic fillers, additives. intended to regulate and maintain determined properties, and a crosslinking agent with or without incorporation of a crosslinking regulating additive.
Lesdits composants sont homogénéisés, dissous et dispersés entre eux gracie à l'action combinée de la température, de la pression et d'un élément mécanique, après quoi l'on provoque la rétlculation au moyen de agent réticulant mentionné ci-dessus, à l'aide ou non d'un activateur0 Le procédé est caractérisé par le fait que les composants sont ajoutés dans un appareil mécanique à axe horizontal ou à axes horizontaux parallèles comportant des zones séparées de chauffage ou de refroidissement sous une forme telle qu'il se produit un -mélange homogène en ce qui concerne les composants ajoutés en divers points de la longueur de l'axe, tout en maintenant les zones séparant les divers points d'addition aux températures convenables pour obtenir la fluidité nécessaire à une homogénéisation correcte0 Cele-c~i. une fois obtenue9 on incorpore, en un point. plus en avant le long de l'axe, agent de réticulation et l'accélérateur sgil y a lieu, tout en maintenant la température nécessaire à l'obtention de lthomogéndisation et le degré de réticulation adéquat, dans le temps prévu0 La masse déjà partiellement ou totalement réticulée passe, sans solution de continuité, à la zone de façonnage, au moyen du mtme élément mécanique et à une température régulée tandis qu'on procède ensuite au refroidissement et à une granulation s'il y a lieu,
La masse obtenue conformément à la présente invention présente, suivant sa composition et le degré de réticulation, quelques propriétés qui permettent de l'appliquer à la fabrication de feuilles élastiques très adaptées au revêtement de toitures, de marais, etc 0OO, à la fabrication de tubes, et d'un grand nombre d'objets d'un grand intérêt pratique, en utilisant les méthodes classiques de transformations
Un autre avantage offert par la masse thermoplastique élastique, objet de la présente invention, est de permettre, après le façonnage, la jonction de pièces par utilisation de la chaleur, de bandes adhésives et d'autres moyens de jonction0
Dans ce procédé destiné à obtenir une masse thermoplastique élastique-, il faut un contrôle adéquat des températures, qui sont fonction des composants constitutifs du mélange, Pour cela, il faut que la régulation de la température soit réellement efficace, et que, dans chaque zone, on puisse effectuer la régulation en fonction des composants ajoutés en chaque point, le long de l'axe ou des axes parallèles. A titre d'exemple, on peut citer le cas où il faudra pouvoir maintenir dans une première zone une tempé rature de 100 à 220 Oe, avec une deuxième zone où l'on pourra régler la température entre 80 et 160 OC, et une troisième zone dans laquelle la température pourra entre maintenue, avec une bonne régulation, entre 160 et 250 CO
L'ordre dans lequel doivent être ajoutés les composants, et les points correspondants d'addition le long de l'axe horizontal ou des axes parallèles, ainsi que les températures convenables, dépendent de la nature des compo- sants, mais il s'agit de questions évidentes pour un spécialiste en la matière faisant l9objet de cette invention0
Comme produits plastifiants, on utilise ceux qui, à la température ambiante, presentent des propriétés élastiques comme les caoutchoucs et qui, lorsque le mélange atteint des températures -élevées, sont capables d'être fluides, comme par exemple un bon nombre d'élastomères thermoplastiques actuellement disponibles.Comme élastomères thermoplastiques qui conviennent. on citera les polymérisats mixtes de blocs du type A - B - A , A représentant des blocs de polymère thermoplastique identiques ou différents par substitution d-tun hydrocarbure aromatique monoalkyle9 B représentant un bloc de polymère élastomère d'un alkyle ou d'un diène combiné, ou un de leur dérivés hydrogénés, On peut également utiliser dans cette invention un polybutadiène, un polyisoprène, de polymères d'acryle-nitrile-butadiène, des copolymères d'acétate de vinyle-éthylène, des copolymères d'4thylène-propylène et des thermopolymères d'éthylène- propylène-diène.Said components are homogenized, dissolved and dispersed therebetween thanks to the combined action of temperature, pressure and a mechanical element, after which the crosslinking is brought about by means of the crosslinking agent mentioned above, on l with or without the aid of an activator The process is characterized in that the components are added to a mechanical device with a horizontal axis or with parallel horizontal axes comprising separate heating or cooling zones in a form as it occurs a homogeneous mixture with regard to the components added at various points along the length of the axis, while maintaining the zones separating the various points of addition at suitable temperatures to obtain the fluidity necessary for correct homogenization Cele-c ~ i. once obtained9 we incorporate, at a point. further forward along the axis, crosslinking agent and accelerator if necessary, while maintaining the temperature necessary for obtaining homogenization and the appropriate degree of crosslinking, within the expected time 0 The mass already partially or totally crosslinked passes, without a solution of continuity, to the shaping zone, by means of the same mechanical element and at a regulated temperature while then cooling and granulation are carried out,
The mass obtained in accordance with the present invention has, depending on its composition and the degree of crosslinking, some properties which make it possible to apply it to the manufacture of elastic sheets very suitable for coating roofs, marshes, etc., in the manufacture of tubes, and a large number of objects of great practical interest, using the classical methods of transformations
Another advantage offered by the elastic thermoplastic mass, object of the present invention, is to allow, after the shaping, the joining of parts by use of heat, adhesive tapes and other means of joining.
In this process intended to obtain an elastic thermoplastic mass, it is necessary to have an adequate control of the temperatures, which are a function of the constituent components of the mixture. For this, the temperature regulation must be really effective, and that, in each zone , regulation can be carried out according to the components added at each point, along the axis or parallel axes. As an example, we can cite the case where it will be necessary to be able to maintain in a first zone a temperature of 100 to 220 Oe, with a second zone where the temperature can be adjusted between 80 and 160 OC, and a third zone in which the temperature can be maintained, with good regulation, between 160 and 250 CO
The order in which the components should be added, and the corresponding points of addition along the horizontal or parallel axes, as well as the suitable temperatures, depend on the nature of the components, but these are obvious questions to a subject matter specialist subject to this invention
The plasticizers used are those which, at room temperature, exhibit elastic properties such as rubbers and which, when the mixture reaches high temperatures, are capable of being fluid, such as a good number of thermoplastic elastomers. currently available as suitable thermoplastic elastomers. mention will be made of mixed block polymers of type A - B - A, A representing blocks of identical or different thermoplastic polymer by substitution of a monoalkyl aromatic hydrocarbon9 B representing a block of elastomeric polymer of an alkyl or of a combined diene , or one of their hydrogenated derivatives, It is also possible to use in this invention a polybutadiene, a polyisoprene, of acryl-nitrile-butadiene polymers, copolymers of vinyl acetate-ethylene, copolymers of ethylene-propylene and ethylene-propylene-diene thermopolymers.
Les mélanges à recommander, parmi les nombreux possibles, sont ceux de butadiène-styrène ou de butadiène styrène-éthylène-propylène, ou de bùtadiène-styrène/EPDM d'un poids moléculaire de 1000000 à 400eOOO avec un copolyw mère EVA. Les pourcentages dans le mélange peuvent être très variés, et on peut indiquer des taux en poids allant de 2 à 60 % pour le premier composant ou les mélanges du premier composant, et de 5 à 85 % pour le deuxième composant0
La teneur du deuxième composant en acétate de vinyle peut titre comprise entre 15 et 60 %0 Ce second composant peut comporter, incorporées, les charges minérales ou organiques en proportions variables suivant la qualité exigée pour la masse thermoplastique finale, en plus des additifs nécessaires au contrôle de ses propriétés.The mixtures to be recommended, among the many possible, are those of butadiene-styrene or butadiene styrene-ethylene-propylene, or of butadiene-styrene / EPDM with a molecular weight of 1,000,000 to 400,000 with an EVA copolyw mother. The percentages in the mixture can be very varied, and we can indicate rates by weight ranging from 2 to 60% for the first component or mixtures of the first component, and from 5 to 85% for the second component0
The content of the second component in vinyl acetate can be between 15 and 60% 0 This second component can include, incorporated, the mineral or organic fillers in variable proportions according to the quality required for the final thermoplastic mass, in addition to the additives necessary for control of its properties.
Comme charges minérales, on peut citer le carbonate' de calcium, la silice, le talc, etc 0 Les charges organl- ques, qui en outre jouent un sable important pendant la formation du mélange ou sur le produit final, peuvent être le noir de fumée et les fractions lourdes du brut de pétrole, des brais de houille, des résidus de polymères thermoplastiques, etc ... As mineral fillers, mention may be made of calcium carbonate, silica, talc, etc. The organic fillers, which, moreover, play a significant sand during the formation of the mixture or on the final product, can be the black of smoke and heavy fractions of crude oil, coal pitches, thermoplastic polymer residues, etc.
Parmi les peroxydes employés pour la rétculation, les plus particulièrement adéquats sont les peroxydes organiques tels que le- peroxyde de dicumyle, le 2,5-di(tertiobutylperoxy)hexane, l'hydroperoxyde de tertiobutyle, le peroxyde de cumylertertiobutyle, le peroxyde de tertiobutyleO
On emploie ces peroxydes au taux de 1 à 6 % calculé -sur le mélange total, accompagnés ou non d'une -quantité de 5 à 10 % (par rapport aux peroxydes) d'un agent accéléra- teur de la réticulationO Exemple I
A l'aide d'une boudineuse, pourvue de quatre points d'addition de composants, on prépare un mélange homogène composé de
Elastomère ......... 40
Charge minérale .... 7
Charge organique ... 48
Composé peroxydé ... 5 la zone terminale de la boudineuse est maintenue à la température de 190 C pour obtenir la réticulation de la masse, laquelle est ensuite granulée avec obtention dssun produit qui a les caractéristiques suivantes
Plaque
Désignation N 1 N 2
Rupture (kg/cm) .............. 111,8 110,7
Allongement (%) ............... 636 621. Among the peroxides used for crosslinking, the most particularly suitable are organic peroxides such as dicumyl peroxide, 2,5-di (tertiobutylperoxy) hexane, tertiobutyl hydroperoxide, cumylertertiobutyl peroxide, tertiobutyl peroxide.
These peroxides are used at a rate of 1 to 6% calculated - on the total mixture, whether or not accompanied by a quantity of 5 to 10% (relative to the peroxides) of a crosslinking accelerating agent. Example I
Using a extruder, provided with four points of addition of components, a homogeneous mixture composed of
Elastomer ......... 40
Mineral filler .... 7
Organic load ... 48
Peroxidized compound ... 5 the terminal zone of the extruder is maintained at the temperature of 190 C to obtain the crosslinking of the mass, which is then granulated to obtain a product which has the following characteristics
Plate
Description N 1 N 2
Breakage (kg / cm) .............. 111.8 110.7
Elongation (%) ............... 636 621.
Arrachement point de Yield
(Rg/cm2) .......... 26,2 23,7
Déchirement (kg/cm) ........... 30,9 28,8
Densité (gr/cm5) ............. 1,1103 1,1140
Dureté Shore A ............... 75 81
Dureté Shore D ............... 25 25
Exemple 2
Avec une composition semblable à celle qui figure dans ltexemple 1, et avec les mimes conditions de fonctionne- ment de la boudineuse, on abaisse la température de réticulation jusqu'à 170 CO Les plaques préparées avec les produits ainsi obtenus présentent les caractéristiques suivantes
Plaque
Désignation N 3 N0 4
Résistance à la traction
(kg/cm) ......... 106 104,2
Allongement (%) ............... 635 621
Arrachement point de Yield
(kg/cm) ........... 24,5 22,3
Résistance au déchirement
(kg/cm) ............ 30,5 28,4
Densité (gr/cm3) .............. 1,1068 1,1109
Dureté Shore A ................ 79 81
Dureté Shore D ................ 27 25
Exemple 3
Avec une formulation dans laquelle on opère d'après l'exemple 2, où l'on réduit la teneur en élastomère de 5 5', et la quantité de peroxyde de 1 5', on obtient les résultats suivants
Plaque
Désignation N 5 N0 6
Résistance à la traction
(kg/cm) ......... 88,1 87,7
Allongement (5') ................ 635 637
Arrachement point de Yield
(kg/cm) .......... 21,8 22,8
Résistance au déchirement
(kg/cm) ........... 32,4 30,2
Densité (gr/cm3) .............. 1,1011 1,1-063
Dureté Shore A ............... 77 77. Yield point pullout
(Rg / cm2) .......... 26.2 23.7
Tear (kg / cm) ........... 30.9 28.8
Density (gr / cm5) ............. 1,1103 1,1140
Shore A hardness ............... 75 81
Shore D hardness ............... 25 25
Example 2
With a composition similar to that which appears in Example 1, and with the same operating conditions of the extruder, the crosslinking temperature is lowered to 170 CO. The plates prepared with the products thus obtained have the following characteristics
Plate
Description N 3 N0 4
Tensile strength
(kg / cm) ......... 106 104.2
Elongation (%) ............... 635 621
Yield point pullout
(kg / cm) ........... 24.5 22.3
Tear resistance
(kg / cm) ............ 30.5 28.4
Density (gr / cm3) .............. 1.1068 1.1109
Shore A hardness ................ 79 81
Shore D hardness ................ 27 25
Example 3
With a formulation in which one operates according to Example 2, where the elastomer content is reduced by 5 5 ', and the amount of peroxide by 1 5', the following results are obtained
Plate
Description N 5 N0 6
Tensile strength
(kg / cm) ......... 88.1 87.7
Extension (5 ') ................ 635 637
Yield point pullout
(kg / cm) .......... 21.8 22.8
Tear resistance
(kg / cm) ........... 32.4 30.2
Density (gr / cm3) .............. 1.1011 1.1-063
Shore A hardness ............... 77 77.
Dureté Shore B ............... 24 24
Exemple 4
On opère comme dans l'exemple 2, mais en diminuant la quantité de peroxyde de 1,5 5' . On obtient pour le produit les caractéristiques suivantes
Plaque
Désignation N0 7 N 8
Résistance à la traction
(kg/cm2) ........ 79,7 74,7
Allongement (%) .............. 700 636
Arrachement point de Yield
(kg/cm2Y ......... 18,5 17,3
Résistance au déchirement
(kg/cm) .......... 29,7 30,7
Densité (gr/cm3) ............. 1,1078 1,1083
Dureté Shore A ............... 79 80
Dureté Shore D ............... 25 25
Exemple 5
On opère comme dans l'exemple 1, mais on abaisse la température de réticulation à 160 Co
Le produit obtenu présente les caractéristiques suivantes
Plaque
Désignation N0 9 N0 10
Résistance à la traction
(kg/cm) ......... 73,9 63
Allongement (%) ............... 751 741
Arrachement point de Yield (kg/cm) ......... 76,7 74,5
Résistance au déchirement
(kg/cm) .......... 29 28,7
Densité (gr/cm ) .............. 1,0978 1,1015
Dureté Shore A ................ 76 76
Dureté Shore B ................ 23 22
La nature de l'invention ayant été décrite suffisamment, ainsi que la manière de la réaliser an pratique, il convient de prendre en compte le fait que les dispositions précédemment indiquées sont susceptibles de modifications de détail, dans la mesure où elles n'en altèrent pas le principe fondamental. Shore B hardness ............... 24 24
Example 4
The procedure is as in Example 2, but by reducing the amount of peroxide by 1.5 5 '. The following characteristics are obtained for the product
Plate
Description N0 7 N 8
Tensile strength
(kg / cm2) ........ 79.7 74.7
Elongation (%) .............. 700 636
Yield point pullout
(kg / cm2Y ......... 18.5 17.3
Tear resistance
(kg / cm) .......... 29.7 30.7
Density (gr / cm3) ............. 1.1078 1.1083
Shore A hardness ............... 79 80
Shore D hardness ............... 25 25
Example 5
The procedure is as in Example 1, but the crosslinking temperature is lowered to 160 Co
The product obtained has the following characteristics
Plate
Description N0 9 N0 10
Tensile strength
(kg / cm) ......... 73.9 63
Elongation (%) ............... 751 741
Yield point pullout (kg / cm) ......... 76.7 74.5
Tear resistance
(kg / cm) .......... 29 28.7
Density (gr / cm) .............. 1.0978 1.1015
Shore A hardness ................ 76 76
Shore B hardness ................ 23 22
The nature of the invention having been sufficiently described, as well as the manner of carrying it out in practice, it should be taken into account that the previously indicated provisions are liable to modifications in detail, insofar as they do not alter them not the basic principle.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES514436A ES514436A0 (en) | 1982-07-27 | 1982-07-27 | "CONTINUOUS MANUFACTURING PROCEDURE FOR PRODUCTS OF PARTIALLY OR FULLY RETICULATED THERMOPLASTIC-ELASTIC MATERIAL". |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2531094A1 true FR2531094A1 (en) | 1984-02-03 |
Family
ID=8484530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8312396A Pending FR2531094A1 (en) | 1982-07-27 | 1983-07-27 | Continuous prepn. of prods. from thermoplastic-elastic material |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE3327081A1 (en) |
| ES (1) | ES514436A0 (en) |
| FR (1) | FR2531094A1 (en) |
| IL (1) | IL69363A (en) |
| MX (1) | MX162633A (en) |
| PT (1) | PT77102B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2259690A1 (en) * | 1974-02-01 | 1975-08-29 | Dainippon Toryo Kk | Thermosetting resins - continuously extruded at controlled flow capability, then hardened in heated mould at controlled temp and residence time |
| FR2297713A1 (en) * | 1975-01-17 | 1976-08-13 | Telecommunications Sa | INTRODUCTION PROCEDURE |
| US4243576A (en) * | 1979-04-02 | 1981-01-06 | National Distillers And Chemical Corp. | Blends of ethylene-vinyl acetate copolymer rubbers with elastomers |
| GB2076726A (en) * | 1980-05-16 | 1981-12-09 | Miura Takashi | Process and apparatus for moulding thermally curable material |
-
1982
- 1982-07-27 ES ES514436A patent/ES514436A0/en active Granted
-
1983
- 1983-07-26 MX MX198160A patent/MX162633A/en unknown
- 1983-07-26 PT PT77102A patent/PT77102B/en not_active IP Right Cessation
- 1983-07-27 FR FR8312396A patent/FR2531094A1/en active Pending
- 1983-07-27 DE DE19833327081 patent/DE3327081A1/en not_active Ceased
- 1983-07-27 IL IL69363A patent/IL69363A/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2259690A1 (en) * | 1974-02-01 | 1975-08-29 | Dainippon Toryo Kk | Thermosetting resins - continuously extruded at controlled flow capability, then hardened in heated mould at controlled temp and residence time |
| FR2297713A1 (en) * | 1975-01-17 | 1976-08-13 | Telecommunications Sa | INTRODUCTION PROCEDURE |
| US4243576A (en) * | 1979-04-02 | 1981-01-06 | National Distillers And Chemical Corp. | Blends of ethylene-vinyl acetate copolymer rubbers with elastomers |
| GB2076726A (en) * | 1980-05-16 | 1981-12-09 | Miura Takashi | Process and apparatus for moulding thermally curable material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3327081A1 (en) | 1984-02-23 |
| PT77102B (en) | 1987-03-23 |
| IL69363A (en) | 1986-11-30 |
| ES8308257A1 (en) | 1983-08-16 |
| MX162633A (en) | 1991-06-06 |
| ES514436A0 (en) | 1983-08-16 |
| IL69363A0 (en) | 1983-11-30 |
| PT77102A (en) | 1983-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2074868C1 (en) | Elastic plastic composition and method for its production | |
| RU2083612C1 (en) | Thermoelastic elastomer composition being dynamically partially hardened by organic peroxides | |
| KR920003034B1 (en) | Resin making material | |
| RU2103287C1 (en) | Dynamically partially (completely) peroxide cross linked thermoplastic elastomeric compositions (variants) | |
| JPS5914063B2 (en) | Method for manufacturing thermoplastic elastomeric blends | |
| EP0582703A1 (en) | Method for preparing bitumen-polymer compositions, application of said compositions to the production of coatings, and mother polymer solution for obtaining said compositions. | |
| DE1911741C3 (en) | Hot-vulcanizable compound | |
| FR2528439A1 (en) | PROCESS FOR THE PREPARATION OF BITUMEN-POLYMERIC COMPOSITIONS, THE APPLICATION OF SAID COMPOSITIONS TO THE PRODUCTION OF COATINGS, AND THE POLYMER MOTHER SOLUTION USEFUL FOR OBTAINING SAID COMPOSITIONS | |
| EP0072203A2 (en) | Method of producing partially cross-linked rubber-resin composition | |
| US4113804A (en) | Compositions comprising polybutene EPDM and polyolefin | |
| JPH0350252A (en) | Production of thermoelastic polyolefin elastomer composition | |
| CN112724571A (en) | Regenerated alloy material based on chemical and physical common modification and preparation method thereof | |
| CA1123142A (en) | Method for the production of polymer modified tars | |
| CN109181281B (en) | Alloy toughening agent for nylon toughening | |
| JPH069849A (en) | Thermoplastic blends containing graft copolymers of polyacrylates as impact modifiers | |
| BE1007336A3 (en) | Bituminous compositions for materials sound. | |
| FR2531094A1 (en) | Continuous prepn. of prods. from thermoplastic-elastic material | |
| EP1604999B1 (en) | A process to modify the rheological properties of the EP(D)M polymers and EP(D)M mixtures with polyalpha-olefins | |
| US5030694A (en) | High impact thermoplastic polymer compositions | |
| CN107254166A (en) | A kind of maleic anhydride is grafted the POE high tenacity nylon material of high dispersive | |
| DE19619509C2 (en) | Binder composition for rubber chemicals, their use, a rubber chemical mixture and process for their production | |
| CN1837339B (en) | Ethylene-propylene copolymers with an improved shape stability suitable for modifying lubricating oils and process for the preparation thereof | |
| CN114573955B (en) | Dynamic vulcanization TPEE composition, preparation method and application thereof | |
| JP2007517957A (en) | Improved thermoplastic polyolefin alloys and methods for producing them | |
| DE1620763C3 (en) | Polybutadiene with improved processability |