Patent US2994683A successfully refreshed from Google Patents.
US2994683A
Expired / Lapsed
US
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Graft copolymers of an acrylic acid ester/butadiene copolymer, styrene and acrylonitrile
Assignee: Borg Warner Corp
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Filing: 1959-12-30
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Granted: 1961-08-01
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 William C Calvert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:05
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A GRAFT COPOLYMER PRODUCT OF A. A MATERIAL SELECTED FROM THE GROUP CONSISTING OF (1) A COPOLYMER OF FROM 90% TO 99% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ETHYL ACRYLATE AND BUTYL ACRYLATE AND, CORRESPONDINGLY, 10% TO 1% BY WEIGHT OF A CONJUGATED DIENE, AND (2) A GRAFT COPOLYMER OF FROM ABOUT 75% TO ABOUT 95% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ETHYL ACRYLATE AND BUTYL ACRYLATE AND, CORRESPONDINGLY, 25% TO 5% BY WEIGHT OF A CONJUGATED DIENE POLYMER, AND B. A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STYRENE, VINYL TOLUENE, ALPHA METHYL STYRENE AND ALPHA METHYL P-METHYL STYRENE, AND C. A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, SAID GRAFT COPOLYMER PRODUCT EMBRACING, ON THE 100 PARTS DRY WEIGHT GRAFT COPOLYMER BASIS, FROM ABOUT 20 PARTS TO ABOUT 60 PARTS BY WEIGHT (DRY BASIS) OF THE COMBINED MATERIAL SELECTED FROM GROUP (A), FROM ABOUT 30 PARTS TO ABOUT 70 PARTS BY WEIGHT OF THE COMBINED MATERIAL SELECTED FROM GROUP (B) AND FROM ABOUT 10 PARTS TO ABOUT 30 PARTS BY WEIGHT OF THE COMBINED MATERIAL SELECTED FROM GROUP (C).
Claim 2
Dependent Claim
194 words
A GRAFT COPOLYMER PRODUCT OF A. A MATERIAL SELECTED FROM THE GROUP CONSISTING OF (1) A COPOLYMER OF FROM 90% TO 99% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ETHYL ACRYLATE AND BUTYL ACRYLATE AND, CORRESPONDINGLY, 10% TO 1% BY WEIGHT OF A CONJUGATED DIENE, AND (2) A GRAFT COPOLYMER OF FROM ABOUT 75% TO ABOUT 95% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ETHYL ACRYLATE AND BUTYL ACRYLATE AND, CORRESPONDINGLY, 25% TO 5% BY WEIGHT OF A CONJUGATED DIENE POLYMER, AND B. A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STYRENE, VINYL TOLUENE, ALPHA METHYL STYRENE AND ALPHA METHYL P-METHYL STYRENE, AND C. A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, SAID GRAFT COPOLYMER PRODUCT EMBRACING, ON THE 100 PARTS DRY WEIGHT GRAFT COPOLYMER BASIS, FROM ABOUT 20 PARTS TO ABOUT 60 PARTS BY WEIGHT (DRY BASIS) OF THE COMBINED MATERIAL SELECTED FROM GROUP (A), FROM ABOUT 30 PARTS TO ABOUT 70 PARTS BY WEIGHT OF THE COMBINED MATERIAL SELECTED FROM GROUP (B) AND FROM ABOUT 10 PARTS TO ABOUT 30 PARTS BY WEIGHT OF THE COMBINED MATERIAL SELECTED FROM GROUP (C).
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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |