US3968071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide resin molding composition
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1975-11-20
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Granted: 1976-07-06
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Expires: 1995-11-20
Abstract
Abstract A polyamide molding composition is disclosed comprising the admixture of glass fibers, nylon 6,6, and an MX nylon, obtained from the condensation of a xylylenediamine and an α,ω-straight chain aliphatic dibasic acid having 6-12 carbon atoms.
Inventors
- 👤 Akira Miyamoto
- 👤 Mitsuyasu Nagano
- 👤 Kiyoshi Morishige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:35
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L; C08L77/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A polyamide resin composition for use in molding, which comprises a mixed polyamide resin comprising 3 to 97 parts by weight of a polyamide resin obtained from a xylylenediamine and an α,ω-straight chain aliphatic dibasic acid having 6 to 12 carbon atoms and correspondingly 97 to 3 parts by weight of nylon 66, and blended therewith, a glass fiber in amount of 10 to 100 parts by weight per 100 parts by weight of said mixed polyamide resin.
Claim 2
Dependent Claim
78 words
A polyamide resin composition for use in molding, which comprises a mixed polyamide resin comprising 3 to 97 parts by weight of a polyamide resin obtained from a xylylenediamine and an α,ω-straight chain aliphatic dibasic acid having 6 to 12 carbon atoms and correspondingly 97 to 3 parts by weight of nylon 66, and blended therewith, a glass fiber in amount of 10 to 100 parts by weight per 100 parts by weight of said mixed polyamide resin.
Claim 3
Dependent Claim
47 words
A polyamide resin composition according to claim 1, wherein the mixed polyamide resin is composed of 80 to 95 parts by weight of a polyamide resin obtained from a xylylenediamine and an α,ω-straight chain aliphatic dibasic acid and 20 to 5 parts by weight of nylon 66.
Claim 4
Dependent Claim
28 words
A polyamide resin composition according to claim 1, wherein the xylylenediamine is m-xylylenediamine or a mixture of more than 60% of m-xylylenediamine and less than 40% of p-xylylenediamine.
Claim 5
Dependent Claim
18 words
A polyamide resin composition according to claim 1, wherein an α,ω-straight chain aliphatic dibasic acid is adipic acid.
Claim 6
Dependent Claim
53 words
A polyamide resin composition according to claim 1, wherein the relative viscosity of both of the polyamide resin obtained from the xylylenediamine and an α,ω-straight chain aliphatic dibasic acid and nylon 66 is 2 to 3 measured at 25°C. by dissolving 1 g. of the polymer in 100 ml. of 96% sulfuric acid.
Claim 7
Dependent Claim
82 words
A polyamide resin composition improved in moldability in injection molding, which comprises a mixed polyamide resin composed of MX nylon that is the product from the polycondensation reaction of a xylylenediamine with an α,ω-straight chain aliphatic dibasic acid of 6 to 12 carbon atoms and nylon 66 at the MX nylon-to-nylon 66 ratio of 80-95 : 20-5 by weight, and blended therewith, a glass fiber in amount of 10 to 100 parts by weight per 100 parts of said mixed polyamide resin.
Claim 8
Dependent Claim
82 words
A polyamide resin composition improved in moldability in injection molding, which comprises a mixed polyamide resin composed of MX nylon that is the product from the polycondensation reaction of a xylylenediamine with an α,ω-straight chain aliphatic dibasic acid of 6 to 12 carbon atoms and nylon 66 at the MX nylon-to-nylon 66 ratio of 80-95 : 20-5 by weight, and blended therewith, a glass fiber in amount of 10 to 100 parts by weight per 100 parts of said mixed polyamide resin.
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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |