US4098746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous vinyl ester copolymer dispersions capable of being cross-linked
Assignee: Hoechst AG
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Filing: 1974-12-19
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Granted: 1978-07-04
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Expires: 1994-12-19
Abstract
Abstract Aqueous dispersions of copolymers consisting of 50-99.9% by weight of a vinyl ester of a saturated monocarboxylic acid having from 1 - 18 carbon atoms, 0.1 - 15% by weight of an α-haloalkane carboxylic acid vinyl ester of the formula ##STR1## wherein R 1 is hydrogen, a halogen atom or an alkyl radical having 1 - 16 carbon atoms, R 2 is hydrogen, a halogen atom or an alkyl radical having 1 - 13 carbon atom and X is a halogen atom, and 0 - 49.9% by weight of at least one other ethylenically unsaturated monomer which can be cross-linked while drying with 0.05% to 10% by weight calculated on the total mixture of an aminoplast resin, a polyamine, a polyamidoamine or a mixture of Formaldehyd and ammonia or an amine. The mixture of the dispersion and the cross-linking agent is stable, and cross-linking will start only when the mixture is applied to a substrate such as a fiber.
Inventors
- 👤 Knut Henning Becker
- 👤 Karl Josef Rauterkus
- 👤 Detlev Seip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:33
CPC Classifications
C; C08; C08L; C08L31/00; C08L31/02; C08K; C08K5/00; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
An aqueous copolymer dispersion containing from 70% to 30% by weight of water and from 30% to 70% by weight of a copolymer of from 50 to 99.9% by weight of at least one vinyl ester of a saturated aliphatic monocarboxylic acid having from 1 to 18 carbon atoms, 0.1 to 15% by weight of an α-haloalkane carboxylic acid vinyl ester of the formula ##STR3## wherein R 1 represents hydrogen, halogen or an alkyl radical having from 1 to 16 carbon atoms, R 2 represents hydrogen, halogen or an alkyl radical having from 1 to 3 carbon atoms and X represents halogen, from 0 to 49.9% by weight of at least one further ethylenically unsaturated monomer selected from mono-olefin having 2 to 18 carbon atoms; acrylic, methacrylic, maleic and fumaric acid esters of saturated monovalent alcohols of 1 to 8 carbon atoms; vinyl chloride, vinylidene chloride, acrylamide and acrylonitrile, and from 0.05 to 10% by weight, based on the total weight of the dispersion of a cross-linking agent selected from the group consisting of aminoplast resins, polyamines, polyamidoamines, a mixture of formaldehyde and amine, a mixture of formaldehyde and ammonia and a mixture of formaldehyde, ammonia and amine.
Claim 2
Dependent Claim
198 words
An aqueous copolymer dispersion containing from 70% to 30% by weight of water and from 30% to 70% by weight of a copolymer of from 50 to 99.9% by weight of at least one vinyl ester of a saturated aliphatic monocarboxylic acid having from 1 to 18 carbon atoms, 0.1 to 15% by weight of an α-haloalkane carboxylic acid vinyl ester of the formula ##STR3## wherein R 1 represents hydrogen, halogen or an alkyl radical having from 1 to 16 carbon atoms, R 2 represents hydrogen, halogen or an alkyl radical having from 1 to 3 carbon atoms and X represents halogen, from 0 to 49.9% by weight of at least one further ethylenically unsaturated monomer selected from mono-olefin having 2 to 18 carbon atoms; acrylic, methacrylic, maleic and fumaric acid esters of saturated monovalent alcohols of 1 to 8 carbon atoms; vinyl chloride, vinylidene chloride, acrylamide and acrylonitrile, and from 0.05 to 10% by weight, based on the total weight of the dispersion of a cross-linking agent selected from the group consisting of aminoplast resins, polyamines, polyamidoamines, a mixture of formaldehyde and amine, a mixture of formaldehyde and ammonia and a mixture of formaldehyde, ammonia and amine.
Claim 3
Dependent Claim
20 words
A dispersion according to claim 1 wherein the cross-linking agent is from 0.1 to 10% by weight of hexamethylene tetramine.
Claim 4
Dependent Claim
67 words
An aqueous dispersion containing from 70% to 30% by weight of water and from 30% to 70% by weight of a copolymer of 50 to 99.9% by weight of vinylacetate, 0.1 to 15% by weight of vinylchloroacetate, and 0 to 49% by weight of ethylene and from 0.1 to 10% by weight, based on the total weight of dispersion, of a cross-linking agent which is a polyamine.
Claim 5
Dependent Claim
67 words
An aqueous dispersion containing from 70% to 30% by weight of water and from 30% to 70% by weight of a copolymer of 50 to 99.9% by weight of vinylacetate, 0.1 to 15% by weight of vinylchloroacetate, and 0 to 49% by weight of ethylene and from 0.1 to 10% by weight, based on the total weight of dispersion, of a cross-linking agent which is a polyamine.
Claim 6
Dependent Claim
13 words
A dispersion according to claim 3 wherein the cross-linking agent is hexamethylene tetramine.
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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |