US4383083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide moulding composition
Assignee: Bayer AG
•
Filing: 1980-10-22
•
Granted: 1983-05-10
•
Expires: 2000-10-22
Abstract
Abstract Impact improved thermoplastic mixtures of at least partly aromatic polyamides and copolymers of alkadiene with 4-6 C-atoms and acrylonitrile.
Inventors
- 👤 Werner Nielinger
- 👤 Bert Brassat
- 👤 Rudolf Binsack
- 👤 Dieter Neuray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
C; C08; C08L; C08L77/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
Thermoplastic moulding mixtures consisting of (1) from 95 to 65% by weight of an amorphous polyamide; (2) from 5 to 35% by weight of a copolymer of (a) from 99 to 60% by weight of alkadiene containing from 4 to 6 carbon atoms; and (b) from 40 to 1% by weight of acrylonitrile (3) and optionally usual additives, the sum of (1) to (3) and the sum of (a) and (b) respectively amounting always to 100% by weight.
Claim 2
Dependent Claim
78 words
Thermoplastic moulding mixtures consisting of (1) from 95 to 65% by weight of an amorphous polyamide; (2) from 5 to 35% by weight of a copolymer of (a) from 99 to 60% by weight of alkadiene containing from 4 to 6 carbon atoms; and (b) from 40 to 1% by weight of acrylonitrile (3) and optionally usual additives, the sum of (1) to (3) and the sum of (a) and (b) respectively amounting always to 100% by weight.
Claim 3
Dependent Claim
31 words
Mixtures as claimed in claim 1, containing of from 70 to 90% by weight of the polymer component (1) and from 10 to 30% by weight of the polymer component (2).
Claim 4
Dependent Claim
29 words
Mixtures as claimed in claim 1, wherein the copolymer consists of 92 to 70% by weight of component (a) and of 8 to 30% by weight of component (b).
Claim 5
Dependent Claim
74 words
Mixtures as claimed in claim 1, wherein the polyamide is the condensation product of isophthalic acid and hexamethylene diamine or of isophthalic acid, hexamethylene diamine and 4,4'-diaminodicyclohexyl methane, isophorone diamine, 2,2,4- and/or 2,4,4-trimethyl hexamethylene diamine, 2,5- and/or 2,6-bis-(aminomethyl)-nor-bornane; or of isophthalic acid, 4,4'-diamino dicyclohexyl methane and ε-caprolactam; or of isophthalic acid, 3,3'-dimethyl-4,4'-diaminocyclohexyl methane and 65% by weight of lauric lactam; or of terephthalic acid and the isomer mixture of 2,2,4- and/or 2,4,4-trimethyl hexamethylene diamine.
Claim 6
Dependent Claim
22 words
Mixtures as claimed in claim 1, wherein the copolymer (2) is a nonvulcanized copolymer of butadiene and/or isoprene and/or 1,4-pentadiene and acrylonitrile.
References Cited (Backward Citations)
DE744119C
Cited
US2683697A
Cited
US2795524A
Cited
US3134746A
Cited
US3218371A
Cited
FR1444425A
Cited
US3431227A
Cited
US3468974A
Cited
DE1301504B
Cited
US3491034A
Cited
US4174358A
Cited
US4174358B1
Cited
FR2343018A1
Cited
US4197379A
Cited
DE2632957A1
Cited
GB1559041A
Cited
DE2730749C3
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |