Polymer structured aqueous detergent compositions
US9556405B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0013
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous polymer structured detergent liquid composition comprising: (i) a surfactant system comprising surfactant and alkaline material present as surfactant salts and/or as free base, (ii) optionally, 0.01 wt % or more suspended particles, (iii) optionally, 3 wt % or more polymer that reduces the composition viscosity at 20 s−1, and (iv) at least 0.05 wt % of a suspending system comprising copolymer formed by the addition polymerization of: (A) 0.1 to 5 wt % of a first monomer consisting of an ethylenically unsaturated diacid of formula (I): HOOC—CR1═CR2—COOH or an unsaturated cyclic anhydride precursor of such an ethylenically unsaturated diacid, the anhydride having formula (II) where R1 and R2 are individually selected from H, C1-C3 alkyl, phenyl, chlorine and bromine; (B) 15 to 60 wt % of a second ethylenically unsaturated monoacidic monomer consisting of (meth)acrylic acid; (C) 30 to 70 wt % of a third ethylenically unsaturated monomer consisting of C1-C8 alkyl ester of (meth)acrylic acid; (D) 1 to 25 wt %, of a fourth ethylenically unsaturated monomer, consisting of surfmer of formula (III) wherein each R3 and R4 are each independently selected from H, methyl, —C(═O)OH, o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.