Claims
- 1. A liquid detergent composition comprising from 25% to 60% by weight of non-soap detergent active material and 1 to 60% by weight of electrolytes to form a dispersion of lamellar droplets in an aqueous continuous phase, the composition having a pH of less than 12.5 and yielding no more than 2% by volume phase separation when stored at 25.degree. C. for 21 days from the time of preparation and further comprising from about 0.01 to about 5% by weight of a deflocculating polymer having a weight average molecular weight of from 500 to 500,000, wherein said deflocculating polymer comprises a combination of a hydrophillic backbone comprising monomer units selected from:
- a) one or more ethylenically unsaturated hydrophillic monomers selected from the group consisting of unsaturated C.sub.1-6 acids, ethers, alcohols, aldehydes, ketones or esters; and/or
- b) one or more polymerizable hydrophillic cyclic monomer units; and/or
- c) one or more non-ethylenically unsaturated polymerizable hydrophillic monomers selected from the group consisting of glycerol and other polyhydric alcohols;
- wherein said polymer is optionally substituted with one or more amino, amine, amide, sulphonate, sulphate, phosphonate, hydroxy, carboxyl or oxide groups;
- and at least one hydrophobic side chain comprising monomers selected from siloxanes, saturated or unsaturated alkyl and hydrophobic alkoxygroups, aryl and aryl-alkyl groups, and mixtures thereof;
- with the proviso that said deflocculating polymer may not include partially esterified copolymers of maleic anhydride or substituted maleic anhydride.
- 2. A composition according to claim 1, wherein the polymer has the general formula (I) ##STR10## wherein: z is 1; (x+y): z is from 4:1 to 1,000:1; in which the monomer units may be in random order; y being from 0 up to a maximum equal to the value of x; and n is at least 1;
- R.sup.1 represents --CO--O--, --O--, --O--CO--, --CH.sub.2 --, --CO--NH-- or is absent;
- R.sup.2 represents from 1 to 50 independently selected alkyleneoxy groups, or is absent, provided that when R.sup.3 is absent and R.sup.4 represents hydrogen or contains no more than 4 carbon atoms, then R.sup.2 must contain an alkyleneoxy group with at least 3 carbon atoms;
- R.sup.3 represents a phenylene linkage, or is absent;
- R.sup.4 represents hydrogen or a C.sub.1-24 alkyl or C.sub.2-24 alkenyl group, with the provisos that
- a) when R.sup.1 represents --O--CO--, R.sup.2 and R.sup.3 must be absent and R.sup.4 must contain at least 5 carbon atoms;
- b) when R.sup.2 is absent, R.sup.4 is not hydrogen and when R.sup.3 is absent, then R.sup.4 must contain at least 5 carbon atoms;
- R.sup.5 represents hydrogen or a group of formula --COOA.sup.4 ;
- R.sup.6 represents hydrogen or C.sub.1-4 alkyl; and
- A.sup.1, A.sup.2, A.sup.3 and A.sup.4 are independently selected from hydrogen, alkali metals, alkaline earth metals, ammonium and amine bases and C.sub.1-4 alkyl;
- or of formula (II): ##STR11## wherein: Q.sup.2 is a molecular entity of formula (IIa): ##STR12## wherein z and R.sup.1-6 are as defined for formula (I); A.sup.1-4, are as defined for formula (I) or (C.sub.2 H.sub.4 O).sub.t H, wherein t is from 1-50, and wherein the monomer units may be in random order;
- Q.sup.1 is a multifunctional monomer, allowing the branching of the polymer, wherein the monomers of the polymer may be connected to Q.sup.1 in any direction, in any order, therewith possibly resulting in a branched polymer;
- n and z are as defined above; v=1 and (x+y+p+q+r): z is from 4:1 to 1,000:1, in which the monomer units may be in random order;
- R.sup.7 and R.sup.8 represent --CH.sub.3 or --H;
- R.sup.9 and R.sup.10 represent independently selected groups selected from --SO.sub.3 Na, --CO--O--C.sub.2.sup.H.sub.4 --OSO.sub.3 Na, --CO--O--NH--C(CH.sub.3).sub.2 --SO.sub.3 Na, --CO--NH.sub.2, --O--CO--CH.sub.3, --OH;
- 3. A composition according to claim 1, wherein the polymer is of formula III: ##STR13## wherein: x is from 4 to 1,000, n, z and R.sup.1-6 are as defined in formula I, wherein the monomers units may be in random order;
- A.sup.1 is as defined above for formula I, or --CO--CH.sub.2 --C(OH)--CO.sub.2 A.sup.1 --CH.sub.2 --CO.sub.2 A.sup.1, or may be a branching point whereto other molecules of formula (III) are attached.
- 4. A composition according to claim 1, wherein the polymer has the formula VI: ##STR14## wherein: If z is the total of R.sup.4 groups, then the ratio (x+y): z is from 4:1 to 1,000:1,; R.sup.4 * is R.sup.4 or --H;
- R.sup.2 and R.sup.4 are as defined above for formula I;
- and S is selected from --H, --COOA.sup.1, --CH.sub.2 COOA.sup.1, --CH(COOA.sup.1).sub.2, (CH.sub.2 COOA.sup.1).sub.2 H, wherein A.sup.1 is as defined for formula I or is R.sup.4 ;
- with the proviso that at least one R.sup.4 group is present as a side chain;
- or of formula (VII): ##STR15## Wherein: x, z, S and R.sup.4 are as defined above for formula VI;
- and wherein at least one R.sup.4 group is present as a side chain; v is 0 or 1.
- 5. A composition according to claim 1, wherein the average molecular weight of the polymer is from 500 to 500,000 as determined by gel permeation chromatography, using polyacrylate standards.
- 6. A composition according to claim 1, wherein the total amount of deflocculating polymer is from 0.01 to 5% by weight of the total composition.
- 7. A composition according to any of claim 1, wherein the deflocculating polymer has a specific viscosity less than 0.1 (1 g in 100 ml methylethylketone at 25.degree. C.).
- 8. A composition according to claim 1 having a pH less than 11.
- 9. A composition according to claim 1, containing solid particles in suspension.
- 10. A composition according to claim 1, which yields less than 0.1% by volume visible phase separation after storage at 25.degree. C. for 90 days from the time of preparation.
- 11. A composition according to claim 1, comprising at least 30% by weight of detergent active material.
- 12. A composition according to claim 1, having a viscosity of no greater than 1 Pas at a shear rate of 21s.sup.-1.
- 13. A composition according to claim 1 comprising less than 45% by weight of water.
- 14. A composition according to claim 1, wherein the polymer is of the formula (IV) ##STR16## wherein: z, n and A.sup.1 are as defined above for formula I; (x+y):z is from 4:1 to 1,000:1, wherein the monomers may be in random order;
- R.sup.1 is as defined above for formula I, or can be --CH.sub.2 --O--, --CH.sub.2 --O--CO--, --NH--CO--;
- R.sup.2-4 are as defined in formula I;
- R.sup.11 represents --OH, --NH--CO--CH.sub.3, or --OSO.sub.3 A.sup.1 ;
- R12 represents --OH, --CH.sub.2 OH, --CH.sub.2 OSO.sub.3 A.sup.1, COOA.sup.1, --CH.sub.2 --OCH3;
- or of formula (V): ##STR17## wherein: z, n and R.sup.1-6 are defined above for formula I; and x is as defined for formula III.
- 15. A composition according to claim 1, wherein the C.sub.1-6 compound is a monomer selected from the group of monomers consisting of acrylic acid, methacrylic acid, maleic acid, crotonic acid itaconic acid, aconitic acid, citraconic acid, vinyl-methyl ether, vinyl sulphonate, vinylalcohol obtained by the hydrolysis of vinyl acetate, acrolein, alkyl alcohol and vinyl acetic acid.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8813978 |
Jun 1988 |
GBX |
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Parent Case Info
This is a continuation application of Ser. No. 07/365,080, filed Jun. 12, 1989, now abandoned.
US Referenced Citations (27)
Foreign Referenced Citations (18)
Number |
Date |
Country |
7714 |
Feb 1980 |
EPX |
13836 |
Aug 1980 |
EPX |
57875 |
Aug 1982 |
EPX |
63018 |
Oct 1982 |
EPX |
126528 |
Nov 1984 |
EPX |
171429 |
May 1985 |
EPX |
172025 |
Feb 1986 |
EPX |
190892 |
Aug 1986 |
EPX |
197635 |
Oct 1986 |
EPX |
215565 |
Mar 1987 |
EPX |
248612 |
Dec 1987 |
EPX |
196398 |
Nov 1984 |
JPX |
1068554 |
May 1967 |
GBX |
1302543 |
Jan 1973 |
GBX |
1482515 |
Aug 1977 |
GBX |
1506427 |
Apr 1978 |
GBX |
2043646 |
Oct 1980 |
GBX |
1589971 |
May 1981 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Angewandte Chemie, vol. 27, No. 1, Jan. 1988, pp. 113-158. |
Continuations (1)
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Number |
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Parent |
365080 |
Jun 1989 |
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