Patent US4287315A successfully refreshed from Google Patents.
US4287315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide blends
Assignee: Individual
•
Filing: 1979-08-23
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Granted: 1981-09-01
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Expires: 1999-08-23
Abstract
Abstract Polymer blends with improved impact strength consisting essentially of a polyamide and a copolymer of an alpha -olefine, an amide and an ester of an alpha , beta unsaturated carboxylic acid.
Inventors
- 👤 Rolf-Volker Meyer
- 👤 Rolf Dhein
- 👤 Friedrich Fahnler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:52
CPC Classifications
C; C08; C08L; C08L77/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
Polymer blends with improved impact strength consisting of: (I) from 70 to 99% by weight of at least one polyamide and (II) from 1 to 30% by weight of a high molecular weight olefinic copolymer having a melting point of at least 100° C. and a melt index of from 1-20 g/10 min. at 190° C. measured according to DIN 53 735 consisting of: (a) from 65 to 98% by weight of at least one α-olefine, (b) from 1 to 15% by weight of at least one amide of an α-β-unsaturated carboxylic acid and (c) from 1 to 20% by weight of at least one alkyl or alkenyl ester of an α,β-unsaturated carboxylic acid, the sum of (I) and (II) and the sum of (a)-(c) being in each case always 100% by weight.
Claim 2
Dependent Claim
133 words
Polymer blends with improved impact strength consisting of: (I) from 70 to 99% by weight of at least one polyamide and (II) from 1 to 30% by weight of a high molecular weight olefinic copolymer having a melting point of at least 100° C. and a melt index of from 1-20 g/10 min. at 190° C. measured according to DIN 53 735 consisting of: (a) from 65 to 98% by weight of at least one α-olefine, (b) from 1 to 15% by weight of at least one amide of an α-β-unsaturated carboxylic acid and (c) from 1 to 20% by weight of at least one alkyl or alkenyl ester of an α,β-unsaturated carboxylic acid, the sum of (I) and (II) and the sum of (a)-(c) being in each case always 100% by weight.
Claim 3
Dependent Claim
13 words
Blends as claimed in claim 1, wherein the polyamide is 6-polyamide and/or 6,6-polyamide.
Claim 4
Dependent Claim
23 words
Blends as claimed in claim 1, wherein component (b) is an amide of an α,β-unsaturated acid having from 3 to 5 carbon atoms.
Claim 5
Dependent Claim
30 words
Blends as claimed in claim 1, wherein component (c) is a C 1 -C 4 alkyl or alkenyl ester of an α,β-unsaturated acid having from 3 to 5 carbon atoms.
Claim 6
Dependent Claim
66 words
Blends as claimed in claim 1, wherein the olefinic copolymer consists of from 80 to 96% by weight of a α-olefine, from 2 to 8% by weight of the amide of an α,β-unsaturated carboxylic acid and from 2 to 15 parts by weight of a C 1 -C 8 alkyl ester of an α,β-unsaturated carboxylic acid, the sum of the % by weight being always 100%.
Claim 7
Dependent Claim
25 words
Blends as claimed in claim 1 wherein the olefinic copolymer contains ethylene, acrylamide, and an ester of acrylic acid with C 1 -C 4 alcohol.
Claim 8
Dependent Claim
27 words
Blends as claimed in claim 1 consisting of from 80 to 95% by weight of component I and from 5 to 20% by weight of component II.
Claim 9
Dependent Claim
14 words
A thermoplastic moulding compound when prepared from a blend as claimed in claim 1.
Claim 10
Dependent Claim
12 words
A transparent foil prepared from a blend as claimed in claim 1.
References Cited (Backward Citations)
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Cited
US3294754A
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US3375219A
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US3516961A
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US3548028A
Cited
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Cited
US3681216A
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GB1284489A
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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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |