Patent US3951906A successfully refreshed from Google Patents.
US3951906A
Expired / Lapsed
US
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Reinforced styrene-acrylonitrile polymers
Assignee: Braskem America Inc
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Filing: 1974-02-28
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Granted: 1976-04-20
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Expires: 1994-02-28
Abstract
Abstract A composition comprising thermoplastic copolymers of styrene or substituted styrene with acrylonitrile or substituted acrylonitriles or acrylonitrile-butadiene-styrene polymers in admixture with a combination of a discontinuous glass fiber and a particulate filler.
Inventors
- 👤 Milton Farber
- 👤 Henno A. Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:18
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K3/01; C08K3/013; C08K3/40; C08K7/00; C08K7/02; C08K7/04; C08K7/14
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
65 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% of CaCO 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 2
Dependent Claim
65 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% of CaCO 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 3
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 80% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 10% and 30% charcoal which has a maximum cross sectional dimension of 0.005 inch; C. between about 10% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 4
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 80% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 10% and 30% charcoal which has a maximum cross sectional dimension of 0.005 inch; C. between about 10% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 5
Dependent Claim
67 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% of Fe 2 O 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 6
Dependent Claim
67 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% of Fe 2 O 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 7
Dependent Claim
65 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% of CaCO 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 8
Dependent Claim
65 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% of CaCO 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 9
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 10% and 30% charcoal which has a maximum cross sectional dimension of 0.005 inch; C. between about 10% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 10
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 10% and 30% charcoal which has a maximum cross sectional dimension of 0.005 inch; C. between about 10% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 11
Dependent Claim
66 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile copolymer B. between about 20% and 30% Fe 2 O 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 12
Dependent Claim
66 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile copolymer B. between about 20% and 30% Fe 2 O 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 13
Dependent Claim
65 words
A blend composition comprising: A. between about 40% and 60% of a α-methylstyrene-acrylonitrile copolymer; B. between about 20% and 30% of CaCO 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 14
Dependent Claim
65 words
A blend composition comprising: A. between about 40% and 60% of a α-methylstyrene-acrylonitrile copolymer; B. between about 20% and 30% of CaCO 3 which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 15
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% silica which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 16
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% silica which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 17
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% silica which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 18
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% silica which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 19
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% talc which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having dimension between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 20
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% talc which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having dimension between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 21
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% talc which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 22
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer; B. between about 20% and 30% talc which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 23
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% mica which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 24
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-butadiene-acrylonitrile interpolymer; B. between about 20% and 30% mica which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 25
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer B. between about 20% and 30% talc which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
Claim 26
Dependent Claim
63 words
A blend composition comprising: A. between about 40% and 60% of a styrene-acrylonitrile copolymer B. between about 20% and 30% talc which has a maximum cross sectional dimension of 0.005 inch; C. between about 20% and 30% of a discontinuous glass fiber having diameter between 10.sup. -3 and 10.sup. -4 inches; said percentages herein being based upon the total weight of said blend.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |