US4293600A
Expired / Lapsed
US
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Method of finishing fibers or fabrics with dispersions of hydrophilic acrylic resins
Assignee: Roehm GmbH Darmstadt
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Filing: 1980-06-06
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Granted: 1981-10-06
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Expires: 2000-06-06
Abstract
Abstract What is disclosed are aqueous dispersions of a hydrophilic copolymer prepared by polymerizing, in an aqueous medium, a monomer mixture comprising a member selected from the group consisting of lower alkyl acrylates and methacrylates, a compound of the formula ##STR1## wherein R is hydrogen or methyl, R 1 is hydrogen or alkyl having 1 to 4 carbon atoms. Y is oxygen or --NR 2 --, R 2 is hydrogen or alkyl having 1 to 4 carbon atoms, and n is an integer from 1 to 25, up to 8 percent, by weight of the copolymer, of a member selected from the group consisting of copolymerizable carboxylic acids and salts of such acids, and at least one monomer capable of crosslinking said copolymer, as well as methods for making said dispersions and using them to impart a hydrophilic finish to fibers and fabrics.
Inventors
- 👤 Herbert Fink
- 👤 Klaus Huebner
- 👤 Horst Dinklage
- 👤 Hans Ottofrickenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:15
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/282; C08F220/285; C08F220/286
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
62 words
The method of finishing fibers or fabrics which comprises applying thereto an aqueous dispersion of a hydrophilic copolymer prepared by polymerizing, in an aqueous medium, a monomer mixture comprising: (1) from 65 to 94.5 percent, by weight of said copolymer, of a member selected from the group consisting of lower alkyl acrylates and methacrylates; (2) a compound of the formula ##STR5## wherein
Claim 2
Independent Claim
62 words
The method of finishing fibers or fabrics which comprises applying thereto an aqueous dispersion of a hydrophilic copolymer prepared by polymerizing, in an aqueous medium, a monomer mixture comprising: (1) from 65 to 94.5 percent, by weight of said copolymer, of a member selected from the group consisting of lower alkyl acrylates and methacrylates; (2) a compound of the formula ##STR5## wherein
Claim 3
Dependent Claim
5 words
R is hydrogen or methyl,
Claim 4
Dependent Claim
5 words
R is hydrogen or methyl,
Claim 5
Dependent Claim
12 words
R 1 is hydrogen or alkyl having 1 to 4 carbon atoms,
Claim 6
Dependent Claim
12 words
R 1 is hydrogen or alkyl having 1 to 4 carbon atoms,
Claim 7
Dependent Claim
7 words
Y is oxygen or --NR 2 --,
Claim 8
Dependent Claim
7 words
Y is oxygen or --NR 2 --,
Claim 9
Dependent Claim
13 words
R 2 is hydrogen or alkyl having 1 to 4 carbon atoms, and
Claim 10
Dependent Claim
13 words
R 2 is hydrogen or alkyl having 1 to 4 carbon atoms, and
Claim 11
Dependent Claim
62 words
n is an integer from 1 to 25; (3) up to 8 percent, by weight of the copolymer, of a member selected from the group consisting of copolymerizable carboxylic acids and salts of such acids; and (4) at least one monomer capable of cross-linking said copolymer, and cross-linking said copolymer by drying said dispersion and heating the dried treated fiber or fabric.
Claim 12
Dependent Claim
62 words
n is an integer from 1 to 25; (3) up to 8 percent, by weight of the copolymer, of a member selected from the group consisting of copolymerizable carboxylic acids and salts of such acids; and (4) at least one monomer capable of cross-linking said copolymer, and cross-linking said copolymer by drying said dispersion and heating the dried treated fiber or fabric.
Claim 13
Dependent Claim
31 words
A method as in claim 1 wherein, in said copolymer, said copolymerizable carboxylic acids and salts are present in an amount from 2 to 7.5 percent by weight of said copolymer.
Claim 14
Dependent Claim
27 words
A method as in claim 1 wherein, in said copolymer, said compound is present in an amount from 5 to 25 percent by weight of said copolymer.
Claim 15
Dependent Claim
36 words
A method as in claim 1 wherein, in said copolymer, said monomer or monomers capable of crosslinking said copolymer is or are present in an amount from 0.5 to 10 percent by weight of said copolymer.
Claim 16
Dependent Claim
18 words
A method as in claim 4 wherein, said monomers capable of cross-linking consist of N-methylol-methacrylamide together with methacrylamide.
Claim 17
Dependent Claim
68 words
A method as in claim 1 wherein said monomer mixture comprises 76 to 80 percent of ethyl acrylate, 10 to 20 percent of ethylene glycol monoacrylate, 2 to 7.5 percent of a member selected from the group consisting of copolymerizable carboxylic acid and salts thereof, and 0.5 to 5 percent of at least one monomer capable of cross-linking said copolymer, all percentages being at weight of said copolymer.
Claim 18
Dependent Claim
22 words
A method as in claim 6 wherein, in said copolymer, said ethylene glycol monoacrylate is 15 percent by weight of said copolymer.
Claim 19
Dependent Claim
34 words
A method as in claim 6 wherein, in said copolymer, said copolymerizable carboxylic acid or salt thereof is itaconic acid or a salt thereof present as said 5 percent by weight of said copolymer.
Claim 20
Dependent Claim
40 words
A method as in claim 6 wherein, in said copolymer, 1 to 1.5 percent of N-methylol-methacrylamide and 0.5-1 percent of methacrylamide are present together as said monomers capable of cross-linking said copolymer, said percentages being by weight of said copolymer.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |