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WO1991018968A1 - Mousses synthetiques - Google Patents

Mousses synthetiques Download PDF

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Publication number
WO1991018968A1
WO1991018968A1 PCT/GB1991/000927 GB9100927W WO9118968A1 WO 1991018968 A1 WO1991018968 A1 WO 1991018968A1 GB 9100927 W GB9100927 W GB 9100927W WO 9118968 A1 WO9118968 A1 WO 9118968A1
Authority
WO
WIPO (PCT)
Prior art keywords
detergent
foam
parts
polyol
alkyl
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.)
Ceased
Application number
PCT/GB1991/000927
Other languages
English (en)
Inventor
Peter Jeffrey
John Francis Toft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NUCLEUS ENTERPRISE Ltd
Original Assignee
NUCLEUS ENTERPRISE Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NUCLEUS ENTERPRISE Ltd filed Critical NUCLEUS ENTERPRISE Ltd
Publication of WO1991018968A1 publication Critical patent/WO1991018968A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/049—Cleaning or scouring pads; Wipes
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Definitions

  • This invention concerns synthetic foams.
  • Synthetic sponge-like foams such as of the polyester-polyurethane type, are now being used for cleaning purposes with detergent already incorporated that is released upon wetting of the foam.
  • the detergent is usually injected in liquid form into the foam prior to wrapping. This further step in the production of foams for cleaning purposes obviously occupies time and so increases production costs.
  • Liquid or solid detergent could be added to the foamable mixture prior to foaming but most detergents hinder the foaming process, to the extent that either the foam detergent often hinders the foaming process, to the extent that either the foam collapses before curing or a closed cell structure is formed, and other detergents can only be tolerated in very small amounts of the order of 5 parts per 100 parts of polyol reactant.
  • the object of the invention is to incorporate detergents into synthetic foams without substantially hindering the foaming process.
  • a method of incorporating a detergent in a synthetic foam comprising the step of mixing the detergent in substantially dry form with one of the foam forming reactants prior to the foaming reaction.
  • the invention further provides a foam product made according to the method of the invention.
  • the detergent may be in granulated, pulverulent, e.g. spray dried powder or flaked form, may be a liquid adsorbed on or absorbed in a solid carrier, may be detergent .manufactured in polyol or may be predispersed in polyol for ease of foam reaction.
  • One preferred detergent form is as flakes although detergents in other shapes, such as pellets, noodles or powders may be useful.
  • the detergent may be of any suitable type, soap being preferred, although synthetic detergents such as methyl esters of fatty acids, e.g. methyltauride and o-leyl methyl tauride, and surfactants such as non-ionic, anionic, amphoteric and cationic surfactants may be used.
  • Suitable surfactants include alkyl sulphoacetates, for example, lauryl sulphoacetates, alkyl alcohol sulphates, alkyl ether sulphates, sulphosuccinate derivatives alkene sulphonates, alkyl sulphonates, alkyl naphthalene sulphonates . alkyl benzyl sulphonates, alkyl ester phosphates and combinations of any of these.
  • detergents that appear to be substantially incompatible with synthetic foam production due to, for example, inherent stickiness or tendency to cake, such as alkyl ben2ene sulphonates, cocoamido betaine or other anionic, non-ionic or cationic detergents in solid form, may be rendered compatible with synthetic foam production by admixture with a carrier. It is bel ' ieved that a suitable carrier acts by coating the detergent particles to render them free running.
  • the carriers may be organic and/or inorganic.
  • Examples of carriers include calcium sulphate and calcium carbonate or a mixture thereof, such as Franklin fibre, polyphosphates, metasilicates, fumed silica, Neuberg chalk, diato aceous earth, talc polymeric powder, organic absorbants, free flowing dry surfactants and detergents compatible with synthetic foam production such as oleyl methyl tauride and lauryl sulphoacetate.
  • the latter are particularly effective as they also tend to increase detergency reduce release rate of detergent from the foam and reduce toxicity of normally harsh detergents.
  • the detergent is preferably mixed with the polyol prior to the foaming reaction.
  • the amount of detergent incorporated in the foam may depend on the end use of the foam as well as the ease with which the detergent combines with the foam ingredients.
  • at least one part, especially at least 5 parts, of detergent up to say 20 parts even up to 30 parts or possibly more parts of detergent may be included per 100 parts of polyol.
  • a powder detergent 10 parts per 100 parts of polyol may be acceptable but for a flake detergent higher amounts say 20 parts per 100 parts of polyol and higher may be possible.
  • the detergent be substantially evenly distributed throughout the rising foam, as uneven distribution may result in non- reproducible results which are not commercially viable.
  • detergent surfactants or soaps which are sparingly soluble in water are preferred since relatively soluble detergents that are suitable for the foaming process may dissolve too quickly in contact with water and hence be less effective in cleaning. Relatively soluble detergents may nevertheless be useful if a substance to inhibit detergent release is included. Suitable substances for inhibiting detergent release may include, for example, starch derivatives cellulose derivatives and absorbent polymers, such as Salsorb (sold by Allied. Colloids) and Sanwet (Hoechst) .
  • liquid detergents in the invention, it may be possible to adsorb them onto solid carriers such as activated silica or silica gel or absorb . .them into absorbent material such as absorbent polymeric material. Liquid detergents may also be used in low concentrations as additives to achieve suitable surfactant formulations.
  • preferred detergents suitable for use in the present invention may be described in the following general terms. Detergents having an aliphatic content and possibly no aromatic content may be most suitable. Anionic detergents may be preferred. Suitable detergents will preferably have low solubility in water. Detergents that are skin-compatible will be preferred. The preferred detergents will be dispersable in the polyol component of the foam and preferably inert to the polyol. Particularly preferred detergents for use in. the invention are ⁇ nsaturated C
  • the foam products of the invention will release the detergent upon wetting.
  • surfactant may be used for example amphoteric surfactants and methyl esters of fatty acids, such as methyl tauride, or cationic products such as cetrimide, benzalkonium chloride or chlorhexidine derivatives, which may have the advantage or providing sterilising and/or disinfecting properties.
  • Preferred foams produced in the present invention are formed on a continuous process and preferably are of a light density of the order of 18 to 25 Kg/m 3 .
  • the detergent containing foams of the invention may be put to a variety of uses.
  • the foams may be used for household cleaning purposes for which the incorporation in the foam of one or more builder substances to enhance the detergent action may be desirable.
  • It may be advantageous to provide the foam with an abrasive surface such as of abrasive powder coated or flaked onto the foam using adhesive to bind the powder to the foam.
  • Silica and aluminium derivatives are suitable abrasive materials which may or may not be incorporated into an impregnation coated polyurethane prepolymer.
  • a layer of non- woven fibrous mat such as of polypropylene may be adhered to one or more sides of a foam block.
  • abrasive products may also be suitable for use by decorators such as for rubbing down paintwork and cleaning walls.
  • the detergent present in the foam acts as a lubricant in these circumstances as well as providing high performance cleaning power.
  • Foam products of the invention may also be used for personal hygiene, especially for use wit babies.
  • customary ingredients of personal hygiene products may be incorporated, such as super fatting agents and perfumes.
  • foam products of the invention may be as carriers for detergents for use in washing machines.
  • a foam product of the invention preferably also containing customary ingredients for detergents for washing machines, such as builders, fluorescent agents etc. may be added directly to the washing machine with the clothing etc to be washed rather than using customary liquid or powder detergents currently flushed into the washing machine from a separate chamber. It is envisaged that such a product will enhance the washing process and by the addition of cationic sofening agents also condition fabrics.
  • a suitable sterilant and/or disinfectant preferably cationic
  • both a hospital/general antiseptic or a household/general disinfectant may be produced.
  • Yet another use for products of the invention will be for washing motor vehicles and mechanical equipment generally, for which a compatible wax may be incorporated in the foams of the invention.
  • the foam products of the invention can be provided in relatively small sizes, e.g. by compression thereof, such as in rolled up form, they are suitable for medical use, especially on a one-off basis, for example, for bed bathing incorporating a safe surfactant, sterilant cleansers, preferably by including a suitable sterilant substance such as cetramide or chlorhexidine, and other medical disposable uses, as well as for household, industrial and commercial uses.
  • the foam products of the invention may be wrapped under sterile conditions, the wrapping to be removed immediately prior to use.
  • a further development of the invention may be to treat foam products of the invention with hot molten soap or surfactant either onto the foam surface or into the foam say by injection. Treatment of the foam surface may be by any suitable means, such as by coating or printing transfer roller, either uniformly or non- uniformly. After cooling the soap/surfactant hardens to give similar properties to the foam product as a soap or synthetic detergent bar.
  • a polyurethane.foam was prepared in the following manner. 3.30 parts of water were dispersed in 100.00 parts of Polyol 3500. 0.27 Parts of blow catalyst, 0.80 parts of foam stabiliser and 0.25 parts of gel catalyst were then added to the water/polyol dispersion. Finally 45.5 parts of toluene diisocyanate were added with good agitation.
  • the resultant polyurethane foam was sponge-like.
  • Example 2 Example 1 was repeated except that 10.00 parts of a detergent (ARKOPON T) were added to the Polyol 3500 prior to mixing with the toluene diisocyanate. The detergent was not visible in the resultant sponge-like foam but was released on wetting with water.
  • a detergent ARKOPON T
  • Example l was repeated except that 5.00 parts of a detergent (Lathanol LAL) were added to the polyol 3500 prior to mixing with the toluene diisocyanate. The detergent was released when the foam was wetted with water.
  • a detergent Lathanol LAL

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Detergent Compositions (AREA)

Abstract

On a produit une mousse synthétique imcorporant un détergent. On mélange le détergent sous forme sensiblement sèche avec l'un des réactifs porogènes avant la réaction de formation de mousse. De manière caractéristique pour une mousse de polyisocyanate, on ajoute le détergent au réactif polyol.
PCT/GB1991/000927 1990-06-08 1991-06-10 Mousses synthetiques Ceased WO1991018968A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909012742A GB9012742D0 (en) 1990-06-08 1990-06-08 Synthetic foams
GB9012742.4 1990-06-08

Publications (1)

Publication Number Publication Date
WO1991018968A1 true WO1991018968A1 (fr) 1991-12-12

Family

ID=10677247

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/000927 Ceased WO1991018968A1 (fr) 1990-06-08 1991-06-10 Mousses synthetiques

Country Status (3)

Country Link
AU (1) AU7977191A (fr)
GB (1) GB9012742D0 (fr)
WO (1) WO1991018968A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2730266A1 (de) * 1977-07-05 1979-01-25 Collo Gmbh Behandlungskissen, insbesondere fuer reinigungszwecke u.dgl.
US4193887A (en) * 1977-03-24 1980-03-18 Tenneco Chemicals, Inc. Filled detergent foam made by a one shot process
US4292412A (en) * 1980-01-16 1981-09-29 W. R. Grace & Co. Hydrophilic, fabric softener foam compositions and method of making
JPS59176400A (ja) * 1983-03-26 1984-10-05 アキレス株式会社 洗浄剤含有ポリウレタンフォームの製造方法
US4476251A (en) * 1983-11-01 1984-10-09 Olin Corporation Polyurethane foam having cleaning and germicidal activities

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193887A (en) * 1977-03-24 1980-03-18 Tenneco Chemicals, Inc. Filled detergent foam made by a one shot process
DE2730266A1 (de) * 1977-07-05 1979-01-25 Collo Gmbh Behandlungskissen, insbesondere fuer reinigungszwecke u.dgl.
US4292412A (en) * 1980-01-16 1981-09-29 W. R. Grace & Co. Hydrophilic, fabric softener foam compositions and method of making
JPS59176400A (ja) * 1983-03-26 1984-10-05 アキレス株式会社 洗浄剤含有ポリウレタンフォームの製造方法
US4476251A (en) * 1983-11-01 1984-10-09 Olin Corporation Polyurethane foam having cleaning and germicidal activities

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Chemical Abstracts, vol. 102, no. 14, April 1985, Columbus, Ohio, US; see page 117, abstract 115562b, & JP,A, 59176400 (ACHILLES CORP.) 5 October 1984 *

Also Published As

Publication number Publication date
GB9012742D0 (en) 1990-08-01
AU7977191A (en) 1991-12-31

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