US5001004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stain-resistant aromatic/maleic anhydride polymers
Assignee: EIDP Inc
•
Filing: 1990-04-02
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Granted: 1991-03-19
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Expires: 2010-04-02
Abstract
Abstract Stain-resistant, polyamide textile substrates treated with compositions comprising hydrolyzed ethylenically unsaturated aromatic/maleic anhydride polymers and processes for their preparation. The treated substrates possess stain resistance that is as good as or better than do previously known stain-resist treated substrates but do not suffer from yellowing to the extent that previously known treated substrates do.
Inventors
- 👤 Patrick H. Fitzgerald
- 👤 Nandakumar S. Rao
- 👤 Yashavant V. Vinod
- 👤 George K. Henry
- 👤 Kenneth S. Prowse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; D06M15/227; D06M15/233; D06M2101/00; D06M2101/16; D06M2101/30; D06M2101/34; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2279
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
A stain-resistant polyamide textile substrate having deposited on it, in an amont effective to impart resistance to staining by acid dyes, a composition comprising a polymer containing between about one and two polymer units derived from one or more ethylenically unsaturated aromatic monomers per polymer unit derived from maleic anhdridge, which has been hydrolyzed in the presence of an alkali metal hydroxide or ammonium hydroxide and which has a number average molecular weight in the range between about 500 and 4000, said stain-resistant substrate which has said composition deposited on it being suitable for immediate use in carpeting, upholstery fabric, or the like.
Claim 2
Dependent Claim
103 words
A stain-resistant polyamide textile substrate having deposited on it, in an amont effective to impart resistance to staining by acid dyes, a composition comprising a polymer containing between about one and two polymer units derived from one or more ethylenically unsaturated aromatic monomers per polymer unit derived from maleic anhdridge, which has been hydrolyzed in the presence of an alkali metal hydroxide or ammonium hydroxide and which has a number average molecular weight in the range between about 500 and 4000, said stain-resistant substrate which has said composition deposited on it being suitable for immediate use in carpeting, upholstery fabric, or the like.
Claim 3
Dependent Claim
73 words
The substrate of claim 1 wherein said amount is between 0.1 and 2% by weight and said ethylenically unsaturated aromatic monomer can be represented by the formula ##STR5## where R is ##STR6## R 1 is H--, CH 3 ; or ##STR7## R 2 is H--or CH 3 --; R 3 is H--or CH 3 O--; R 4 is H--, CH 3 --; or ##STR8## R 3 plus R 4 is --O--CH 2 --O--.
Claim 4
Dependent Claim
13 words
The substrate of claim 1 wherein said ethylenically unsaturated aromatic monomer is styrene.
Claim 5
Dependent Claim
29 words
The substrate of claim 1 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer unit derived from one or more ethylenically unsaturated aromatic monomers.
Claim 6
Dependent Claim
23 words
The substrate of claim 1 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer unit derived from styrene.
Claim 7
Dependent Claim
17 words
The substrate of claim 1 wherein said polymer has been hydrolyzed in the presence of sodium hydroxide.
Claim 8
Dependent Claim
23 words
The substrate of claim 6 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer unit derived from styrene.
Claim 9
Dependent Claim
105 words
A process for imparting stain-resistance to a textile subsrate which comprises applying to said substrate, in an amount effective to impart to said substrate resistance to the staining effects of acid dyes, a composition comprising a polymer containing between about one and two polymer units derived from one or more vinyl-aromatic monomes per polymer unit derived from maleic anhydride, which has been hydrolyzed in the presence of an alkali metal hydroxide or ammonium hydroxide and which has a number average molecular weight in the range between about 500 and 400, thereby providing a stain-resistant substrate suitable for immediate use in carpeting, upholstery, or the like.
Claim 10
Dependent Claim
105 words
A process for imparting stain-resistance to a textile subsrate which comprises applying to said substrate, in an amount effective to impart to said substrate resistance to the staining effects of acid dyes, a composition comprising a polymer containing between about one and two polymer units derived from one or more vinyl-aromatic monomes per polymer unit derived from maleic anhydride, which has been hydrolyzed in the presence of an alkali metal hydroxide or ammonium hydroxide and which has a number average molecular weight in the range between about 500 and 400, thereby providing a stain-resistant substrate suitable for immediate use in carpeting, upholstery, or the like.
Claim 11
Dependent Claim
71 words
The substrate of claim 8 wherein said amoutn is between 0.1 2% by weight and said ethylenically unsaturated aromatic monomer can be represented by the formula ##STR9## wherein R is ##STR10## R 1 H--, CH 3 ; or ##STR11## R 2 is H--or CH 3 --; R 3 is H--or CH 3 O--; R 4 is H--, CH 3 --; or ##STR12## R 3 plus R 4 is --O--CH 2 --O--.
Claim 12
Dependent Claim
13 words
The process of claim 8 wherein said ethylenically unsaturated aromatic monomer is styrene.
Claim 13
Dependent Claim
29 words
The process of claim 8 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer unit derived from one or more ethylenically unsaturated aromatic monomers.
Claim 14
Dependent Claim
22 words
The process of claim 8 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer derived from styrene.
Claim 15
Dependent Claim
16 words
The process of claim 8 wherein said polymer is hydrolyzed in the presence of sodium hydroxide.
Claim 16
Dependent Claim
23 words
The process of claim 13 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer unit derived from styrene.
References Cited (Backward Citations)
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