US4649172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyacetal resin composition
Assignee: Polyplastics Co Ltd
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Filing: 1985-04-19
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Granted: 1987-03-10
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Expires: 2005-04-19
Abstract
Abstract A polyacetal resin composition comprises a polyacetal and a potassium titanate fiber, being suitable for moulding a slidable part or article.
Inventors
- 👤 Yukimasa Yanase
- 👤 Tsuneyoshi Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:49
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
18 words
A polyacetal resin composition which comprises a polyacetal, a potassium titanate fiber and a fluororesin abrasion resisting agent.
Claim 2
Dependent Claim
18 words
A polyacetal resin composition which comprises a polyacetal, a potassium titanate fiber and a fluororesin abrasion resisting agent.
Claim 3
Dependent Claim
31 words
A polyacetal resin composition as set forth in claim 1, wherein said potassium titanate fiber is added in an amount of 1 to 40% by weight based on the total composition.
Claim 4
Dependent Claim
31 words
A polyacetal resin composition as set forth in claim 1, wherein said abrasion resisting agent is added in an amount of 0.5 to 30% by weight based on the total composition.
Claim 5
Dependent Claim
31 words
A polyacetal resin composition as set forth in claim 2, wherein said potassium titanate fiber is added in an amount of 5 to 30% by weight based on the total composition.
Claim 6
Dependent Claim
29 words
A polyacetal resin composition as set forth in claim 1, wherein said fluororesin is added in an amount of 2 to 10% by weight based on the total composition.
References Cited (Backward Citations)
US3005795A
Cited
US3294871A
Cited
GB1251641A
Cited
US4100245A
Cited
US4506053A
Cited
US4526921A
Cited
JPS59207050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-09 | 1990-09-08 | 1991-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-09 | 1994-09-08 | 1995-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-09 | 1998-09-08 | 1999-03-10 | $7700.00 | Window Closed / Lapsed |