US4702859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive polyamide resin composition
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1986-12-29
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Granted: 1987-10-27
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Expires: 2006-12-29
Abstract
Abstract An electrically conductive polyamide resin composition comprising (A) 100 parts by weight of a polyamide resin derived from xylylenediamine as a main diamine component and an alpha, omega-linear aliphatic dicarboxylic acid as a main dicarboxylic acid component, (B) 5 to 100 parts by weight of nylon 66, (C) 30 to 300 parts by weight of glass fibers, (D) 5 to 40 parts by weight of furnace black, and (E) 5 to 40 parts by weight of graphite.
Inventors
- 👤 Senzo Shimizu
- 👤 Isao Nomura
- 👤 Kenichi Narita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:57
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L; C08L77/00; C08L77/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
77 words
An electrically conductive polyamide resin composition comprising (A) 100 parts by weight of a polyamide resin derived from xylylenediamine as a main diamine component and an alpha, omega-linear aliphatic dicarboxylic acid as a main dicarboxylic acid component, (B) 5 to 100 parts by weight of nylon 66, (C) 30 to 300 parts by weight of glass fibers, (D) 5 to 40 parts by weight of furnace black, and (E) 5 to 40 parts by weight of graphite.
Claim 2
Dependent Claim
77 words
An electrically conductive polyamide resin composition comprising (A) 100 parts by weight of a polyamide resin derived from xylylenediamine as a main diamine component and an alpha, omega-linear aliphatic dicarboxylic acid as a main dicarboxylic acid component, (B) 5 to 100 parts by weight of nylon 66, (C) 30 to 300 parts by weight of glass fibers, (D) 5 to 40 parts by weight of furnace black, and (E) 5 to 40 parts by weight of graphite.
Claim 3
Dependent Claim
25 words
The polyamide resin composition of claim 1 wherein the furnace black (D) is electrically conductive furnace black, and the graphite (E) is natural scale-like graphite.
References Cited (Backward Citations)
US4562221A
Cited
US4655964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |