US3670048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers of unsaturated polyethers on polyamide and polyester substrates
Assignee: EIDP Inc
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Filing: 1966-09-09
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Granted: 1972-06-13
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Expires: 1986-09-09
Abstract
Abstract Dye receptive polymers may be prepared by grafting polyethers containing ethylenic unsaturation onto a fiber forming polyamide backbone. The graft copolymer is prepared by passing a polymer whose surface is coated with the vinyl monomer through a zone of irradiation.
Inventors
- 👤 Eugene Edward Magat
- 👤 David Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:10
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/18; D06M14/26; D06M14/30; D06M14/34; C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; D06M14/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
21 words
The composition of claim 1, wherein said polymeric carbonamide substrate is the resinous condensation product of hexamethylene diamine and adipic acid.
Claim 2
Dependent Claim
18 words
The composition of claim 1, wherein said polymeric carbonamide substrate is the resinous self-condensation product of epsilon caprolactam.
Claim 3
Dependent Claim
13 words
A filamentary shaped article comprised of the composition set forth in claim 1.
Claim 4
Dependent Claim
9 words
The composition of claim 1 wherein X is methoxy.
Claim 5
Dependent Claim
85 words
A substrate of a fiber-forming synthetic condensation polymer from the class consisting of (1) a polymeric carbonamide which contains recurring carbonamide groups as an integral part of the main polymer chain separated by at least 2 carbon atoms and (2) polyethylene terephthalate, bearing a chemically bonded coating of which a major proportion is a polyether from the class consisting of (A) methoxypolyethyleneoxy methacrylate and polymers thereof, (B) a polyoxyalkylene glycol, and (C) ethoxyethyleneoxyacrylate, the said coating being grafted to the said substrate via carbon-carbon bonds.
Claim 6
Dependent Claim
79 words
In the process for producing graft polymers, the improvement which comprises continuously passing shaped polymer through an irradiation zone, continuously subjecting said polymer to ionizing irradiation in said zone, while in surface contact with at least one vinyl compound of the group consisting of vinyl and divinyl monomers, said polymer being constituted of a monomer different from the group member used, said irradiation being with an effective radiation dosage to cause graft polymerization of said monomer onto said polymer.
Claim 7
Dependent Claim
32 words
The improvement according to claim 7, in which said polymer is passed through said zone while carrying on at least a portion of its surface, a surface layer of said group member.
Claim 8
Dependent Claim
27 words
The process of claim 7, further comprising the preliminary step of coating the surface of said shaped polymer with said vinyl compound to achieve said surface contact.
Claim 9
Dependent Claim
68 words
In the process for producing graft co-polymers, the improvement which comprises subjecting to high energy (ionizing) radiation a polymer, surface coated with at least one vinyl compound of the group consisting of vinyl and divinyl monomers, and said polymer being constituted of a monomer different from the group member used, said irradiation being with an effective radiation dosage to cause graft polymerization of said monomer onto said polymer.
Claim 10
Dependent Claim
29 words
The process of claim 10, further comprising the preliminary step of coating the surface of said polymer with said vinyl compound and wherein said polymer is a shaped article.
Claim 11
Dependent Claim
74 words
In the process for producing graft copolymers, the improvement which comprises coating the surface of a shaped polymer with a vinyl compound of the group consisting of vinyl and divinyl monomers and then subjecting said shaped polymer to high energy (ionizing) radiation, said polymer being constituted of a monomer different from the vinyl group member used, said irradiation being with an effective radiation dosage to cause graft polymerization of said monomer to said polymer.
References Cited (Backward Citations)
US2921006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |