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US4365037A
Expired / Lapsed
US
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Glass fiber-reinforced polyarylene sulfide resin composition
Assignee: DIC Corp
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Filing: 1981-07-15
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Granted: 1982-12-21
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Expires: 2001-07-15
Abstract
Abstract A glass fiber-reinforced polyarylene sulfide resin composition comprising a polyarylene sulfide resin and glass fibers having a diameter of from 5 to 11.5 microns, and as an optional component, mica powder.
Inventors
- 👤 Tuneyuki Adachi
- 👤 Hiroshi Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:38
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
58 words
A glass fiber-reinforced polyarylene sulfide resin composition comprising 30 to 95 parts by weight of a polyarylene sulfide resin and 70 to 5 parts by weight of glass fibers having a diameter of from 5 to 11.5 microns, the total of the resin and glass fibers being 100 parts by weight, and as an optional component, mica powder.
Claim 2
Dependent Claim
58 words
A glass fiber-reinforced polyarylene sulfide resin composition comprising 30 to 95 parts by weight of a polyarylene sulfide resin and 70 to 5 parts by weight of glass fibers having a diameter of from 5 to 11.5 microns, the total of the resin and glass fibers being 100 parts by weight, and as an optional component, mica powder.
Claim 3
Dependent Claim
32 words
The composition of claim 1 wherein the polyarylene sulfide resin has a melt flow rate, at a temperature of 300° C. under a load of 2160 g, of from 8 to 50.
Claim 4
Dependent Claim
18 words
The composition of claim 1 wherein the glass fibers have a length of from 0.5 to 15 mm.
Claim 5
Dependent Claim
59 words
The composition of claim 1 wherein the mica powder is present and contains at least 90% by weight of particles having a particle size smaller than 100 mesh, and has an Mg/Fe weight ratio of at least 2, a bonded water content of not more than 2% by weight and a dehydration starting temperature of at least 400° C.
Claim 6
Dependent Claim
27 words
The composition of claim 1 wherein the amount of the mica powder is 10 to 70% by weight based on the weight of the polyarylene sulfide resin.
Claim 7
Dependent Claim
9 words
An article molded from the composition of claim 1.
Claim 8
Dependent Claim
27 words
The composition of claim 4 wherein the amount of the mica powder is 10 to 70% by weight based on the weight of the polyarylene sulfide resin.
Claim 9
Dependent Claim
43 words
The composition of claim 1 which comprises 35 to 90 parts by weight of the polyarylene sulfide resin and 65 to 10 parts by weight of the glass fibers, the total amount of the resin and glass fibers being 100 parts by weight.
Claim 10
Dependent Claim
18 words
The composition of claim 1 wherein the glass fibers have a diameter of from 7 to 11 microns.
References Cited (Backward Citations)
US3354129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |