US4925588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antisoiling and anti-redeposition latices for the aqueous washing of textile articles
Assignee: Rhodia Chimie SAS
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Filing: 1987-12-23
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Granted: 1990-05-15
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Expires: 2007-12-23
Abstract
Abstract Antisoiling and anti-redeposition latices which are usable in the aqueous washing of textile materials, consisting either of copolymers of vinyl acetate with unsaturated carboxylic acids, optionally grafted with sufonic polyesters, or of (meth)acrylic/unsaturated carboxylic acid copolymers grafted with polyester sulfonates.
Inventors
- 👤 Gerard Berrod
- 👤 Dominique Charmot
- 👤 Robert Gresser
- 👤 Gilles Guerin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3788; C11D3/0005; C11D3/0036
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
A method of improving the antisoiling or anti-redeposition properties of a detergent composition comprising the step of adding to said detergent an amount of a latex which comprises a vinyl copolymer of at least one (meth)acrylic ester and at least one unsaturated carboxylic acid grafted with at least 1% polyester sulfonate effective for improving the antisoiling and anti-redeposition properties of said detergent.
Claim 2
Independent Claim
62 words
A method of improving the antisoiling or anti-redeposition properties of a detergent composition comprising the step of adding to said detergent an amount of a latex which comprises a vinyl copolymer of at least one (meth)acrylic ester and at least one unsaturated carboxylic acid grafted with at least 1% polyester sulfonate effective for improving the antisoiling and anti-redeposition properties of said detergent.
Claim 3
Dependent Claim
14 words
The method of claim 1 comprising at least 0.1% by weight of the latex.
Claim 4
Dependent Claim
32 words
The method of claim 2, wherein said vinyl copolymer is a copolymer of at least one (meth)acrylic ester and at least one unsaturated carboxylic acid selected from (meth)acrylic, itaconic and maleic acids.
Claim 5
Dependent Claim
23 words
The method of claim 3, wherein said (meth)acrylic ester is selected from esters wherein the alkyl chain contains 1 to 4 carbon atoms.
Claim 6
Dependent Claim
15 words
The method of claim 3, wherein said (meth)acrylic ester is selected from methyl(meth)acrylate and ethyl(meth)acrylate.
Claim 7
Dependent Claim
18 words
The method of claim 3, wherein said vinyl copolymer is grafted with at most 10% of polyester sulfonate.
Claim 8
Dependent Claim
39 words
The method of claim 6, wherein said polyester sulfonate contains a distribution of phthalic or succinic acid with respect to ethylene oxide of about 60% by weight of phthalic or succinic acid for 40% by weight of ethylene oxide.
Claim 9
Dependent Claim
14 words
The method of claim 1 comprising at least 0.2% by weight of the latex.
Claim 10
Dependent Claim
14 words
The method of claim 1 comprising at least 0.4% by weight of the latex.
Claim 11
Dependent Claim
18 words
The method of claim 2, wherein the percent by weight of acid comonomer ranges from 3 to 8%.
Claim 12
Dependent Claim
21 words
The method of claim 1, wherein the percent by weight of the carboxylic acid comonomer ranges from about 10 to 20%.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-14 | 1993-11-13 | 1994-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-14 | 1997-11-13 | 1998-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-14 | 2001-11-13 | 2002-05-15 | $7700.00 | Window Closed / Lapsed |