EP0329899A2
Expired / Lapsed
EP
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Stain-resistant aromatic/maleic anhydride polymers
Assignee: EIDP Inc
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Filing: 1988-12-14
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Granted: —
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Expires: 2008-12-14
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 Henry Fitzgerald
- 👤 Nandakumar Seshagiri Rao
- 👤 Yashavant Vinayak Vinod
- 👤 George Keith Henry
- 👤 Kenneth Spencer Prowse
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 21:32
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; D06M15/227; D06M15/233; D06M15/37; D06M15/39; D06M15/41; D06M2101/00; D06M2101/16; D06M2101/30; D06M2101/34
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
79 words
A stain-resistant polyamide textile substrate having deposited on it an effective amount of a composition which imparts stain resistance to it 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 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 4000.
Claim 2
Dependent Claim
79 words
A stain-resistant polyamide textile substrate having deposited on it an effective amount of a composition which imparts stain resistance to it 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 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 4000.
Claim 3
Dependent Claim
17 words
The substrate of Claim 1 wherein said ethylenically unsaturated aromatic monomer can be represented by the formula
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
79 words
A process for imparting stain-resistance to a textile substrate which comprises applying to said substrate an effective amount of 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 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 4000.
Claim 10
Dependent Claim
79 words
A process for imparting stain-resistance to a textile substrate which comprises applying to said substrate an effective amount of 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 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 4000.
Claim 11
Dependent Claim
17 words
The process of Claim 8 wherein said ethylenically unsaturated aromatic monomer can be represented by the formula
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
23 words
The process of Claim 8 wherein said polymer contains about one polymer unit derived from maleic anhydride per polymer unit 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)
No citation records indexed.
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