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US5039743A
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Polymer blends of polyketones, polyamides and carboxylated block copolymers
Assignee: Shell USA Inc
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Filing: 1989-09-25
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Granted: 1991-08-13
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Expires: 2009-09-25
Abstract
Abstract Blends comprising a major proportion of linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, with lesser proportions of a polymeric polyamide, a carboxylated partially hydrogenated block copolymer and, optionally, an acidic polymer containing moieties of an α-olefin and an α,β-ethylenically unsaturated hydrocarbon wherein, optionally, a portion of the carboxyl groups are neutralized with non-alkali metal, demonstrate a balance of strength and improved low temperature toughness.
Inventors
- 👤 Joseph M. Machado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:28
CPC Classifications
C; C08; C08L; C08L73/00; C08L23/00; C08L53/00; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/919
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
A polymer blend comprising a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and minor proportions of (a) a polymeric polyamide having recurring amide groups in the polymer chain, (b) a carboxylated, partially hydrogenated diblock copolymer of a vinyl aromatic compound and a conjugated alkadiene, the carboxylation being primarily on aromatic rings, and optionally (c) an acidic polymer of an α-olefin and an α,β-ethylenically unsaturated carboxylic acid, optionally containing a non-acidic, low molecular weight polymerizable monomer and optionally having a portion of the carboxyl groups neutralized with non-alkali metal.
Claim 2
Dependent Claim
98 words
A polymer blend comprising a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and minor proportions of (a) a polymeric polyamide having recurring amide groups in the polymer chain, (b) a carboxylated, partially hydrogenated diblock copolymer of a vinyl aromatic compound and a conjugated alkadiene, the carboxylation being primarily on aromatic rings, and optionally (c) an acidic polymer of an α-olefin and an α,β-ethylenically unsaturated carboxylic acid, optionally containing a non-acidic, low molecular weight polymerizable monomer and optionally having a portion of the carboxyl groups neutralized with non-alkali metal.
Claim 3
Dependent Claim
51 words
The blend of claim 1 wherein the linear alternating polymer is represented by the repeating formula --CO--(CH.sub.2 --CH.sub.2 )].sub.x --CO--G)].sub.y wherein G is the moiety an ethylenically unsaturated hydrocarbon of at least 3 carbon atoms polymerized through the ethylenic unsaturation and the ratio of y:x is no more than about 0.5.
Claim 4
Dependent Claim
23 words
The blend of claim 2 wherein the carboxylated, partially hydrogenated diblock copolymer is a copolymer of styrene or α-methylstyrene and butadiene or isoprene.
Claim 5
Dependent Claim
20 words
The blend of claim 3 wherein the acidic polymer is a copolymer of ethylene and acrylic acid or methacrylic acid.
Claim 6
Dependent Claim
33 words
The blend of claim 4 wherein the polyamide is a linear polyamide having from 2 to 16 carbon atoms inclusive in each monomeric unit and a melting point in excess of 200° C.
Claim 7
Dependent Claim
9 words
The blend of claim 5 wherein y is zero.
Claim 8
Dependent Claim
24 words
The blend of claim 5 wherein G is a moiety of propylene and the ratio of y:x is from about 0.01 to about 0.1.
Claim 9
Dependent Claim
76 words
The blend of claim 7 wherein the diblock copolymer is a copolymer of styrene and butadiene or isoprene, the partially hydrogenated block copolymer contains no more than about 20% of the aliphatic carbon-carbon unsaturation of the block copolymer and the carboxylated, partially hydrogenated block copolymer contains at least one carboxyl group for each aromatic block but no more than one carboxyl group for each aromatic moiety of the aromatic portion of the partially hydrogenated block copolymer.
Claim 10
Dependent Claim
12 words
The blend of claim 8 wherein the polyamide is homopolymeric in character.
Claim 11
Dependent Claim
21 words
The blend of claim 9 wherein the acidic polymer is a non-neutralized copolymer of ethylene and acrylic acid or methacrylic acid.
Claim 12
Dependent Claim
16 words
The blend of claim 10 wherein the block copolymer is a copolymer of styrene and butadiene.
Claim 13
Dependent Claim
17 words
The blend of claim 11 wherein the acidic polymer is a copolymer of ethylene and acrylic acid.
Claim 14
Dependent Claim
14 words
The blend of claim 11 wherein the polyamide is a homopolymer derived from caprolactam.
Claim 15
Dependent Claim
57 words
The blend of claim 8 wherein the blend is copolymeric in character derived from a primary diamine of the formula H.sub.2 N--(CH.sub.2 ).sub.n NH.sub.2 wherein n is an integer from 2 to 16 inclusive, and an aliphatic dicarboxylic acid of the formula HO.sub.2 C--CH.sub.2 ).sub.m CO.sub.2 H wherein m is an integer from 0 to 14 inclusive.
Claim 16
Dependent Claim
21 words
The blend of claim 14 wherein the acidic polymer is a non-neutralized copolymer of ethylene and acrylic acid or methacrylic acid.
Claim 17
Dependent Claim
16 words
The blend of claim 15 wherein the block copolymer is a copolymer of styrene and butadiene.
Claim 18
Dependent Claim
15 words
The blend of claim 16 wherein the polyamide is derived from hexamethylenediamine and adipic acid.
Claim 19
Dependent Claim
17 words
The blend of claim 17 wherein the acidic polymer is a copolymer of ethylene and acrylic acid.
Claim 20
Dependent Claim
17 words
The blend of claim 17 wherein the acidic polymer is a copolymer of ethylene and methacrylic acid.
References Cited (Backward Citations)
US3694412A
Cited
EP0121965A2
Cited
EP0257663B1
Cited
US4906687A
Cited
US4839437A
Cited
US4904728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-12 | 1995-02-11 | 1995-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-12 | 1999-02-11 | 1999-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-12 | 2003-02-11 | 2003-08-13 | $7700.00 | Window Closed / Lapsed |