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US4093793A
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Copolymers of anthraquinone dyes and acrylamide
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1975-08-01
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Granted: 1978-06-06
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Expires: 1995-08-01
Abstract
Abstract Copolymers of acrylamide and dyes, usable as prepolymers for the preparation of structurally dyed macromolecular materials. The dyes have a polymerizable double bond, such as maleimido, acryloylamino or cyanovinyl groups.
Inventors
- 👤 Michel Maurice Luce Champenois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:55
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; C08F220/56; C09B5/00; C09B5/02; C09B5/04; C09B69/00; C09B69/10; C09B69/101
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
A structurally dyed water-insoluble macromolecular material containing, in copolymerized form, acrylamide, at least one colorless monomer selected from the group consisting of vinyl chloride, vinyl acetate, styrene, acrylic acid, acrylates and acrylonitrile and at least one anthraquinone dye having a group containing a polymerizable double bond, obtained by reacting for one to two minutes, in an aqueous medium and in the presence of a tetravalent cerium complex, the dye with the acrylamide and then introducing in the medium said colorless monomer and continuing the polymerization, the amount of dye being from 0.1 to 25% by weight of the colorless monomer and the amount of acrylamide being from 0.5 to 50% by weight of the colorless monomer.
Claim 2
Dependent Claim
116 words
A structurally dyed water-insoluble macromolecular material containing, in copolymerized form, acrylamide, at least one colorless monomer selected from the group consisting of vinyl chloride, vinyl acetate, styrene, acrylic acid, acrylates and acrylonitrile and at least one anthraquinone dye having a group containing a polymerizable double bond, obtained by reacting for one to two minutes, in an aqueous medium and in the presence of a tetravalent cerium complex, the dye with the acrylamide and then introducing in the medium said colorless monomer and continuing the polymerization, the amount of dye being from 0.1 to 25% by weight of the colorless monomer and the amount of acrylamide being from 0.5 to 50% by weight of the colorless monomer.
Claim 3
Dependent Claim
30 words
A structurally dyed water-insoluble macromolecular material as defined in claim 1 wherein said group of anthraquinone dye is a member selected from the group consisting of maleimido, acryloylamino and cyanovinyl.
Claim 4
Dependent Claim
20 words
A structurally dyed macromolecular material as defined in claim 2 wherein said group of anthraquinone dye is a cyanovinyl group.
Claim 5
Dependent Claim
55 words
A structurally dyed macromolecular material as defined in claim 3 wherein said anthraquinone dye is a dye of the general formula: ##STR8## wherein Y represents a hydrogen atom or a sulfo group, X represents a hydrogen or chlorine atom, n represents 0 or 1, and the cyanovinyl group is in position 3, 4 or 5.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |