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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
  • C11D3/3776—Heterocyclic compounds, e.g. lactam
• • 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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents

Definitions

• a detergent composition with good anti-soil-rcdeposition characteristics for synthetic and similar fabrics is provided by incorporating therein a small proportion of a copolymer of vinylpyrrolidone and vinylacetate.
• the vinylpyrrolidone/vinylacetate copolymers incorporated have an average molecular weight within the range of about 10,000 to about 400,000, preferably from about 20,000 to about 200,000.
• Hitherto sodium carboxymethylcellulose has been used extensively in detergent compositions to reduce redeposition of soil during the washing process.
• it is a very effective anti-redeposition agent for cotton and similar fabrics, it is ineffective as an anti-redeposition agent for synthetic, especially polyester fabrics.
• vinyl compounds viz, polyvinyl alcohol and polyvinylpyrrolidone have been proposed as soil-suspending agents for the prevention of soil redeposition, the suc cess of which has been very slight.
• it has now been established that, particularly the higher molecular weight polyvinyl alcohols show drawbacks during the processing and use of detergent compositions containing these materials.
• the present invention relates to detergent compositions containing vinylpolymers as an anti-redeposition agent.
• Copolymers of vinylpyrrolidone and vinylacetate are good anti-redeposition agents for synthetic and similar fabrics.
• an object of the present invention is to provide a detergent composition having satisfactory anti-soilredeposition characteristics for modern textiles, and so reducing the tendency to greying of these fabrics on repeated washings.
• copolymers of vinylpyrrolidone and vinylacetate are good anti-redeposition agents for synthetic and similar fabrics without showing the drawbacks of known agents. These copolymers used in small amounts already prevent redeposition of soil on synthetic fabrics as sodium carboxymethylcellulose does on cotton.
• the specific or exact degree of polymerisation is not critical provided the material has the desired water solubility.
• the suitable vinylpyrrolidone/vinylacetate copolymers have an average molecular weight usually within the range of about 10,000 to about 400,000 and preferably from about 20,000 to about 200,000. Such copolymers are known commercially but their use as anti-redeposition agents has not hitherto been disclosed.
• VP and VA vinylpyrrolidone
• VPzVA mol ratio of 50:50.
• the preferred copolymers of the invention are those having VPzVA mol ratios of between 10:90 and :10, more preferably between 30:70 and 70:30.
• the VP/VA copolymers can be incorporated in liquid as well as particulate or solid detergent compositions. Used in particulate detergent compositions they may be admixed with the other ingredients in the conventional manner during the slurry-making preparation, followed by spray-drying. Some degree of hydrolysis of the acetateportion of the copolymer may have occurred during the processing, without affecting the physical properties of the slurry or of the powder characteristics and its performance.
• the spray-dried powder shows no increase in hygroscopicity at all by the VP/VA copolymer content and maintains its free-flowing properties on storage.
• the invention therefore provides a detergent composition
• a detergent composition comprising essentially a detergent active compound and a copolymer of vinylpyrrolidone and vinylacetate as hereinbefore defined.
• the amount of the vinylpyrrolidonelvinylacetate copolymer used as anti-redeposition agent in the composition should be a minor proportion of the composition, e.g. 0.1 to 5.0% by weight of the detergent composition, preferably from 0.2% up to 2.0%
• the detergent active compound in the composition according to the invention can be any of the conventional anionic, nonionic, cationic or ampholitic detergent active compounds normally included in fabric washing detergent compositions.
• suitable detergent active compounds are: alkylaryl sulphonates; alkyl or alkane sulphonates; alkyl sulphates; alkyl phosphates; the mixtures of anionic detergent active compounds produced by the sulphonation with sulphur trioxide, and subsequent hydrolysis and neutralisation of unsaturated hydrocarbons (commonly called oefine sulphonates); ethoxylated alcohols; ethoxylated alkyl phenols; ethoxylated amines; ethoxylated fatty acid amides; sulphates and phosphates of these ethoxylated materials; amine oxides; isothionates; C -C fatty acid soaps; taurines; betaines and sulphobetaines.
• a composition of the invention may comprise any of the other conventional detergent composition ingredients, such as fatty acid amide lather boosters, e.g.
• coconut ethanolamide and palmkernel ethanolamide inorganic and organic detergency builders such as sodium tripolyphosphate, trisodium orthophosphate and sodium nitrilotriacetate; hydrotropes such as sodium xylene sulphonate, sodium toluene sulphonate etc.; additives for inhibiting corrosion and fabric damage such as silicates; inorganic salts such as sodium sulphate and sodium carbonate; bleaches such as sodium perborate, sodium percarbonate and sodium chlorocyanurates; and, usually present in minor amounts, perfumes, colourants, fiuorescers, germicides, enzymes and other anti-redeposition agents, such as sodium or potassium carboxymethylcellulose.
• This latter agent may be present in the composition in amounts of the same order as the anti-redeposition agent of the invention, viz 0.1-5.0% by weight, without aflecting each others performance.
• Anti-rcdeposition age 0.2 0.2 0.2 0.2 0.2
• Example 1 VP/V A copolymer 60:40 (obtained from Badische Anilin und Soda Fabriken and sold under the trade name Luviskol VA 64).
• Example 2 VP/VA copolymer 50:50 (obtained from General Aniline & Film Corp. and sold under the trade name Elia E-535).
• Example A Polyvinylpyrrolidone (obtained from BASF and sold under the trade name Luviskol K
• Example B Polyvinylpyrrolidone (obtained from BASF and sold under the trade name Luvislrol K 90).
• Example 3 VP/VA copolymer 50:50(ex GAF; sold under the trade name Ella E 535).
• Example 4 VP/VA copolymcr 20:80-(ex BASF; sold under the trade name Luviskol VA 28).
• Example 5 VP/VA copolymer 50:50(ex BASF; sold under the trade name Luviskol VA 55E).
• Example 6 VP/VA copolymer 60:40-(ex BASF; sold under the trade name Luviskol VA 64).
• Example D Alkylmonoester of poly(methylvinylether)(ex GAF, sold under code number ES 225).
• Example E zgglrggf-acrylic ester copolymer(ex I'Ioechst, sold under code number
• Table II shows that even in soap containing compositions the effect of the VP/VA copolymers is still clearly noticeable.
• composition of Example V was tested in washing naturally soiled fabrics in a Schulthess drum-type Washing machine set for the synthetic wash cycle with a maximum temperature of 60 C.
• the whiteness degree after 25 and 50 washes, measured with the Elrepho-photometer were compared with a similar composition without a VP/VA copolymer being present, except for sodium carboxymethylcellulose which was present as an anti-redeposition agent for cotton fabrics in conventional compositions (composition F).
• Test conditions Normally soiled white laundry goods were washed together with samples of cotton, nylon, polyester and Splendesto fabrics.
• Example 8 9 EXAMPLES XII-XIV Liquid preparations incorporating VP/VA copolymers devised for fine laundering.
• Example 12 VP/VA copolymer 50:50 ex BASF.
• Example 13 VP/VA (igpggmer 20:80 ex BASF.
• Example 14 VP/VA copolymer 60:40 ex What is claimed is:
• a detergent composition consisting essentially of 2 percent to 95 percent by weight of a detergent active compound selected from the group consisting of anionic, nonionic, ampholitic detergents and mixtures thereof; and 0.1 percent to 5.0 percent by weight of a copolymer of vinylpyrrolidone and vinylacetate, said copolymer having an average molecular weight within the range of 10,000 to 400,000 and a vinylpyrrolidone/vinylacetate ratio of between :90 and 90:10.
• a detergent composition consisting essentially of 2 percent to 95 percent by weight of a detergent active compound selected from. the group consisting of anionic, nonionic, ampholitic detergents and mixtures thereof; a copolymer of vinylpyrrolidone and vinylacetate having an average molecular weight within the range of 10,000 to 400,000, in an amount of 0.1% to 5.0% by weight of the composition, and an alkali metal carboxymethylcellulose in an amount of 0.1% to 5.0% by weight of the composition.
• a detergent active compound selected from. the group consisting of anionic, nonionic, ampholitic detergents and mixtures thereof; a copolymer of vinylpyrrolidone and vinylacetate having an average molecular weight within the range of 10,000 to 400,000, in an amount of 0.1% to 5.0% by weight of the composition, and an alkali metal carboxymethylcellulose in an amount of 0.1% to 5.0% by weight of the composition.
• a detergent composition consisting essentially of 2 to 60% by weight of a detergent active compound, selected from the group consisting of anionic, nonionic, cationic, ampholitic detergents and mixtures thereof, 0.1 to 5.0% by weight of a copolymer of vinylpyrrolidone and vinylacetate having an average molecular weight within the range of 10,000 to 400,000, and the balance being primarily water-soluble inorganic and organic detergency builder salts and water, said detergency builder salts being selected from the group consisting of sodium phosphates, nitrilotriacetates, sodium sulphate, sodium carbonate, sodium silicates and mixtures thereof.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Detergent Compositions (AREA)

Applications Claiming Priority (1)

Publications (1)

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ID=10405755

Family Applications (1)

Country Status (12)

Cited By (7)

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Family Cites Families (3)

• 1970
  • 1970-08-12 GB GB3879770A patent/GB1354498A/en not_active Expired
• 1971
  • 1971-07-23 US US00165584A patent/US3749682A/en not_active Expired - Lifetime
  • 1971-08-09 JP JP46059653A patent/JPS5238045B1/ja active Pending
  • 1971-08-09 CH CH1169971A patent/CH565859A5/xx not_active IP Right Cessation
  • 1971-08-09 NL NL7110923.A patent/NL156185B/xx not_active IP Right Cessation
  • 1971-08-09 CA CA120,059A patent/CA941709A/en not_active Expired
  • 1971-08-10 DE DE2139923A patent/DE2139923B2/de not_active Ceased
  • 1971-08-10 AT AT698871A patent/AT310333B/de not_active IP Right Cessation
  • 1971-08-10 NO NO2990/71A patent/NO135323C/no unknown
  • 1971-08-11 FR FR7129359A patent/FR2104227A5/fr not_active Expired
  • 1971-08-12 SE SE7110303A patent/SE390421B/xx unknown
  • 1971-08-12 BE BE771251A patent/BE771251A/xx not_active IP Right Cessation

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