Patent US2331848A successfully refreshed from Google Patents.
Patent US4760109A successfully refreshed from Google Patents.
US4760109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide resin compositions
Assignee: Stamicarbon BV
•
Filing: 1985-11-20
•
Granted: 1988-07-26
•
Expires: 2005-11-20
Abstract
Abstract PCT No. PCT/NL85/00046 Sec. 371 Date Jul. 15, 1986 Sec. 102(e) Date Jul. 15, 1986 PCT Filed Nov. 20, 1985 PCT Pub. No. WO86/03212 PCT Pub. Date Jun. 5, 1986.The subject invention relates to novel resin compositions comprising polytetramethylene adipamide and polyarylene sulfide, that are superior in mechanical strength, rigidity chemical resistance, heat resistance and moldability.
Inventors
- 👤 Kazumasa Chiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:32
CPC Classifications
C; C08; C08L; C08L77/00; C08K; C08K5/00; C08K5/54
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
33 words
Polyamide resin compositions comprising 95 to 50 percent by weight of polyamides having at least 80 mole percent tetramethylene adipamide as main component and 50 to 5 percent by weight of polyarylene sulfide.
Claim 2
Dependent Claim
33 words
Polyamide resin compositions comprising 95 to 50 percent by weight of polyamides having at least 80 mole percent tetramethylene adipamide as main component and 50 to 5 percent by weight of polyarylene sulfide.
Claim 3
Dependent Claim
25 words
Polyamide resin composition consisting essentially of 90 to 55 percent by weight of polytetramethylene adipamide and 45 to 10 percent by weight of polyarylene sulfide.
Claim 4
Dependent Claim
25 words
Polyamide resin composition consisting essentially of 90 to 55 percent by weight of polytetramethylene adipamide and 45 to 10 percent by weight of polyarylene sulfide.
Claim 5
Dependent Claim
38 words
Polyamide resin composition according to claim 1, in which the polyarylene sulfide is chosen from the group represented by the general formula --(R 1 --S)-- in which R 1 is p-phenylene, m-phenylene, 2,6-naphthalene, 4,4'-biphenylene, p,p'-bibenzyl or their substituents.
Claim 6
Dependent Claim
13 words
Polyamide resin composition according to claim 3 in which R 1 is p-phenylene.
Claim 7
Dependent Claim
38 words
Polyamide resin composition according to claim 2, in which the polyarylene sulfide is selected from the group represented by the general formula --(R 1 --S)-- in which R 1 is p-phenylene, m-phenylene, 2,6-naphthalene, 4,4'-biphenylene, p,p'-bibenzyl or their substituents.
Claim 8
Dependent Claim
12 words
Polyamide resin composition according to claim 1 further comprising a reinforcing material.
Claim 9
Dependent Claim
14 words
Polyamide resin composition according to claim 6, in which the reinforcing material is fibrous.
Claim 10
Dependent Claim
29 words
Polyamide resin composition according to claim 7, in which the fibrous reinforcing material is selected from the group consisting of glass fibers, asbestos fibers, carbon fibers and graphite fibers.
Claim 11
Dependent Claim
11 words
Moldings consisting essentially of polyamide resin compositions according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |