SU1047929A1 - Film-forming composition - Google Patents

Abstract

FILM FORMING COMPOSITION containing divinyl styrene oligomer and modifier, characterized in that, in order to improve the physicochemical properties of coatings from the composition, it contains as a modifier a 50-55% solution of the product of copolymerization of unsaturated hydrocarbons of petrochemical suspension C-C fraction The mixture of gasoline and turpentine in the following ratio of components, wt.%: Modifier 5-20 Divinylstyrene oligomer Else.

Description

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CO The invention relates to the paint industry, in particular to paint materials based on synthetic film and paint used for the manufacture of paints. The following compositions are known for: divinyl styrene oligomer based coatings such as oligodivinyl styrene lacquer 1 3. Films based on this lacquer have satisfactory physicomechanical properties, however poor wetting of pigments and fillers lead to the formation of coatings uneven in reflectance, sedimentation of pigments and fillers during storage paint compositions based on it. In addition, coatings are aging. The closest to the invention according to its technical essence is a film-forming composition containing The dgsinyl styrene oligomer and the modifier are mixtures of polydiene and lead manganese oil desiccant; the coatings formed by this film-expanding have improved physical and mechanical properties as compared to the coating on the basis of one divinyl styrene oligomer t2. The disadvantage of this coating is the dark color, as well as the poor wetting of pigments and fillers, which leads to a loss of gloss of the coatings. The purpose of the invention is to improve the physicochemical properties of the coatings of the composition. The goal is achieved by the fact that the film-forming composition containing a di-styrene oligomer and a modifier contains as a last 50-55% solution of the product of the copolymerization of unsaturated hydrocarbon-petrochemical raw material fractions in a mixture of gasoline and turpentine at an elimination ratio of components, May. Modifier 5-20 DIVINILSTYROL Oligomer Else The following copolymers can be used as copolymerization products. Copolymer 1 of the Cg-Cg fraction (130160c) of pyrolysis resins is produced according to TU 3810916-79, grades A, B, C. Copolymer 2 obtained from a mixture of the diene-cyclodiene fraction C, -C (20-30 wt.h.) and the aryl-alkene fraction of Cg-Cg (wt.h.) products of the pyrolysis of petrochemical raw materials in the presence of organic peroxides (0 , 5-3 mas.h,), contains, wt%: dienes with the number of carbon atoms 20.3-29.3} vinylaromatic monomers, i 60, 3-70 3) indenes 4, b, b, b, terminal The ester groups (alkoxy, arylalkoxy, cycloalkoxy, etc.) 3-6 Copolymer 3 get terpoly. backseat fraction e () liquid C1u; pyrolysis ol at 20 ° C) -220 ° C and b-10 atm. This light resin is dissolved in the oil and is produced as an aft-polymeric drying oil. It consists of copolymers of styrene, c-methylstyrene, dicyclopentadiene, vinylgoluene and indene. It is well combined with vegetable oil. Available on TU 6-10-1456-80 Copolymer 4 is ion: oh. by the presence of a catalyst in the presence of a catalyst (aluminum chloride j of unsaturated compounds of fractions Cr, C ,,., pyrolysis resins boiling over into limbs-x x leO-lSO C. Molecular weight 8001200, iodine acid up to 5 g koh.a / 100: (softening temperature is not lower, TU 38917-80. In all 4 modifiers, a mixture of gasoline (GOST 3134-78 and turpentine (GOST 16943-79) in the ratio of 1; 1 is obtained as a solvent; Divnitstirolol oli The homer is an oligodivinyl styrene lacquer varnish (TU 205 RSFSR 11,215-79) - solution of 5 vinyl vinyl styrene coolant in xylene (GOST 9410-78 GOST 9949-76) j lovent (GOS Cho21478 and GOST 1928-67). The content of the modifier in the composition is 5-20 wt.% due to the properties of the Baira film-forming composition. aging of coatings. With a content of more than 20 wt.%, the drying time of the film-forming is increased, the bending strength is reduced. To prepare the composition, mix a DIVINYSTIL lacquer with a 50-55% solution of one CC of these copolymers in a mixture of solvent gasoline and turpentine cooled to 20-30 ° C. the solution is prepared at a C-C to obtain a single-stage product with a conditional viscosity of 20–40 s according to VZ-4 in the following ratio ks $ mpyyentov f May „h ,; BenZIN-solvent copolymer and turpentine 1-1 Else Examples of compositions of the proposed film-forming composition and. Their indicators are shown in the table.

5 1047929

As can be seen from the table, the proposals for a new low-cost type of petrochemical film-forming composition of raw materials and the economy of scarce

compared to the prototype of the best and most expensive vegetable oils, it improves drying time, it does not produce the lacquer hardness of the film and the gloss of coatings, paints and extends

In addition, the use of composition-5 raw materials.

Claims (1)

A FILM-FORMING COMPOSITION 'containing a divinyl styrene oligomer and a modifier, characterized in that, in order to improve the physicochemical properties of the coatings from the composition, it contains as a modifier a 50-55% solution of the product of copolymerization of unsaturated hydrocarbons-petrochemical feed fraction C ₄ -C in a Mixture of gasoline and turpentine in the following ratio of components, wt.%: Modifier 5-20 Divinylstyrene oligomer Else. <1 SO y with indene 4,6,5,6, - terminal 'ether groups (alkoxy, arylalkoxy, cycloalkoxy, etc.) 3-6, Copolymer 3 is obtained by terpolymerization of the Cj-C fraction (120-200 ° C) of 5 liquid pyrolysis resins at 20-0-220 ° C and 6-10 atm. This light resin is dissolved in the oil product and produced as oil polymer drying oil. It consists of copolymers of styrene, ct-methylstyrene, dicyclopentadiene, vinyltoluene and indene. It goes well with vegetable oil. Available in accordance with TU 6-10-1456-80, Copolymer 4 is produced by ionic-. dimerization in the presence of a catalyst (aluminum chloride) of unsaturated compounds of fractions C _h -C, ₄ , pyrolysis resins, boiling in the range 160-190 ° C. The molecular weight is 8001200, the iodine pie up to 5 g of iodine / 100 g (softening temperature not lower than 80 ^s C, TU 38917-80). In all 4 modifiers, a mixture of gasoline (GOST 3134-78) and turpentine (GOST 16943-79) in a ratio of 1 g1 is used as a solvent. Divinylstyrene oligomer is an oligodivinylstyrene varnish (TU 205 RSFSR 11.215-79) solution of di-vinylstyrene cooligomer in xylene (GOST 9410-78 GOST 9949-76), solvent (GOS ^ '1021478 and GOST 1928-67). The content of the modifier in the composition of 5-20 wt.% Due to the properties of the film-forming composition. At a content of less than 5 wt.%, The film-forming composition approaches the properties of oligodivinyl styrene varnish - the gloss deteriorates, the aging of the coatings increases. When the content is more than 20 wt.%, The drying time of the film-forming agent is increased, the bending strength and impact are reduced. To prepare the composition, divinyl styrene varnish is mixed with a 50-55% ~ solution of one of these copolymers cooled in a mixture of gasoline-solvent and turpentine cooled to 20-30 ° C. A 55% solution is prepared at 60-80 ° C until a homogeneous product is obtained with a nominal viscosity of 20-40 s according to VZ-4 with the following ratio of components, May ч h .; Copolymer 50-55 Gasoline solvent and turpentine 1: 1 Else Examples of compositions of the proposed film-forming composition and their indicators are shown in the table.