US4205148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeable polyolefin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1979-04-26
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Granted: 1980-05-27
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Expires: 1999-04-26
Abstract
Abstract A method for producing aminated copolymers by aminating ethylene-glycidyl acrylates copolymers, which comprises conducting the amination in a heterogeneous system using a mixed solvent of an amine and a lower alcohol, and a dyeable polyolefin composition comprising the said aminated copolymer and polyolefin.
Inventors
- 👤 Yoshiharu Tatsukami
- 👤 Hazime Nishibara
- 👤 Yasutoshi Kobayashi
- 👤 Hideo Shinonaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1477; C08F; C08F210/00; C08F210/02; C08F8/00; C08F8/30; C08F8/32; C08L; C08L23/00; C08L23/02; C08F2800/00; C08F2800/20; C08K; C08K5/00; C08K5/16; C08K5/17; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/10; C08L33/00; C08L33/04; C08L33/06; C08L33/062; C08L33/068
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A method for producing aminated ethylene-glycidyl acrylates copolymers by amination of ethylene-glycidylacrylates copolymers, which comprises conducting the amination in a heterogeneous system comprising the ethyleneglycidyl acrylates copolymers and a mixed solvent of a secondary amine amine and a lower alcohol, to the extent that not less than 90% of epoxy groups present in the copolymer are aminated, the volume ratio of the amine to the alcohol in the mixed solvent being 20/80 to 85/15, and the amount of the mixed solvent being 1 to 100 parts by weight of the copolymer.
Claim 2
Independent Claim
91 words
A method for producing aminated ethylene-glycidyl acrylates copolymers by amination of ethylene-glycidylacrylates copolymers, which comprises conducting the amination in a heterogeneous system comprising the ethyleneglycidyl acrylates copolymers and a mixed solvent of a secondary amine amine and a lower alcohol, to the extent that not less than 90% of epoxy groups present in the copolymer are aminated, the volume ratio of the amine to the alcohol in the mixed solvent being 20/80 to 85/15, and the amount of the mixed solvent being 1 to 100 parts by weight of the copolymer.
Claim 3
Dependent Claim
21 words
A method according to claim 1, wherein said amine is one member selected from the group consisting of dialkylamines and monoalkylamines.
Claim 4
Dependent Claim
25 words
A method according to claim 1, wherein said amine is a dialkylamine selected from the group consisting of diethylamine, dipropylamine and di-n-butylamine, dipropylamine and di-n-butylamine.
Claim 5
Dependent Claim
18 words
A method according to claim 1, wherein said lower alcohol is one having 1 to 6 carbon atoms.
Claim 6
Dependent Claim
14 words
A method according to claim 1, wherein said lower alcohol is methanol or ethanol.
Claim 7
Dependent Claim
17 words
A method according to claim 1, wherein the copolymer is a copolymer of ethylene and glycidyl methacrylate.
Claim 8
Dependent Claim
23 words
A method according to claim 1, wherein a content of the glycidyl acrylates in the said copolymer is 15 to 35% by weight.
Claim 9
Dependent Claim
37 words
A method according to claim 1, wherein the amination is conducted at a temperature higher than a temperature calculated by the formula, (T m -10)°C., wherein T m is a melting point of the ethylene-glycidyl acrylates copolymers.
References Cited (Backward Citations)
US3305603A
Cited
US3320226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |