US4764551A
Expired / Lapsed
US
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Dyeable poly-alpha-olefin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1987-11-05
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Granted: 1988-08-16
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Expires: 2007-11-05
Abstract
Abstract A dyeable poly- alpha -olefin composition having improved dyeablity, is disclosed, comprising a melt kneaded mixture of (A) 100 parts by weight of a poly- alpha -olefin; (B) from 1 to 20 parts by weight of an ethylene copolymer having a melt index as defined in JIS K-6760 at 190 DEG C. in the range of from 1 to 1,000 g/10 min, which is composed of (a) from 40 to 95% by weight of ethylene and (b) from 5 to 60% by weight of at least one dialkylaminoalkyl acrylamides comonomer represented by the formula: <IMAGE> wherein R1 represents hydrogen or a methyl group; R2 and R3 each represents hydrogen or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 ro 4; and (C) from 0 to 3 parts by weight of at least one alkali metal salt of an organic carboxylic acid having from 7 to 24 carbon atoms.
Inventors
- 👤 Tadayuki Ohmae
- 👤 Kentaro Mashita
- 👤 Noboru Yamaguchi
- 👤 Kouichiro Asao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:00
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L23/04; C08L23/08; C08L23/14; C08L23/142; C08L2203/00; C08L2203/12; C08L23/0846; C08L23/0869; C08L23/0892; C08L33/00; C08L33/24; C08L33/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A dyeable poly-α-olefin composition having improved dyeablity and comprising a melt kneaded mixture of (A) 100 parts by weight of a poly-α-olefin; (B) from 1 to 20 parts by weight of an ethylene copolymer having a melt index as defined in JIS K-6760 at 190° C. in the range of from 1 to 1,000 g/10 min, which is composed of (a) from 40 to 95% by weight of ethylene and (b) from 5 to 60% by weight of at least one dialkylaminoalkyl acrylamides comonomer represented by the formula: ##STR3## wherein R 1 represents hydrogen or a methyl group; R 2 and R 3 each represents hydrogen or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 4; and (C) from 0 to 3 parts by weight of at least one alkali metal salt of an organic carboxylic acid having from 7 to 24 carbon atoms.
Claim 2
Dependent Claim
155 words
A dyeable poly-α-olefin composition having improved dyeablity and comprising a melt kneaded mixture of (A) 100 parts by weight of a poly-α-olefin; (B) from 1 to 20 parts by weight of an ethylene copolymer having a melt index as defined in JIS K-6760 at 190° C. in the range of from 1 to 1,000 g/10 min, which is composed of (a) from 40 to 95% by weight of ethylene and (b) from 5 to 60% by weight of at least one dialkylaminoalkyl acrylamides comonomer represented by the formula: ##STR3## wherein R 1 represents hydrogen or a methyl group; R 2 and R 3 each represents hydrogen or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 4; and (C) from 0 to 3 parts by weight of at least one alkali metal salt of an organic carboxylic acid having from 7 to 24 carbon atoms.
Claim 3
Dependent Claim
40 words
A poly-α-olefin composition as claimed in claim 1, wherein the organic carboxylic acid in (C) is at least one member selected from a higher fatty acid having from 10 to 24 carbon atoms, benzoic acid, p-t-butylbenzoic acid, and nicotinic acid.
Claim 4
Dependent Claim
15 words
A poly-α-olefin composition as claimed in claim 1, wherein the poly-α-olefin (A) is crystalline polypropylene.
Claim 5
Dependent Claim
30 words
A poly-α-olefin composition as claimed in claim 1, wherein the dialkylaminoalkyl acrylamides comonomer (b) is at least one member selected from dimethylaminopropyl acrylamide, dimethylaminopropyl methacrylamide, dimethylaminoethyl acrylamide, and dimethylaminoethyl methacrylamide.
References Cited (Backward Citations)
CA759534A
Cited
US3943114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |