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Patent US3278642A successfully refreshed from Google Patents.
US3278642A
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Method of making interpolymers of monovinyl aromatic compounds, acrylonitrile and a rubber
Assignee: Dow Chemical Co
•
Filing: 1962-12-26
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Granted: 1966-10-11
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Lee Lieng-Huang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:22
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08F279/04; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR MAKING A THERMOPLASTIC COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF AN INTERPOLYMERIZATION PRODUCT WHICH COMPRISES: (1) HEATING A SOLUTION OF FROM 5 TO 16 PERCENT BY WEIGHT OF RUBBERY BUTADIENE POLYMER THAT IS SOLUBLE IN MONOMERIC STYRENE AND CONTAINS A PREDOMINANT AMOUNT OF BUTADIENE-1,3 CHEMICALLY COMBINED IN THE POLYMER MOLECULE, DISSOLVED IN (A) FROM 55 TO 70 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE SOLUTIN, OF A POLYMERIZABLE LIQUID COMPRISING AT LEAST ONE ALKENYL AROMATIC COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
84 words
A PROCESS FOR MAKING A THERMOPLASTIC COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF AN INTERPOLYMERIZATION PRODUCT WHICH COMPRISES: (1) HEATING A SOLUTION OF FROM 5 TO 16 PERCENT BY WEIGHT OF RUBBERY BUTADIENE POLYMER THAT IS SOLUBLE IN MONOMERIC STYRENE AND CONTAINS A PREDOMINANT AMOUNT OF BUTADIENE-1,3 CHEMICALLY COMBINED IN THE POLYMER MOLECULE, DISSOLVED IN (A) FROM 55 TO 70 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE SOLUTIN, OF A POLYMERIZABLE LIQUID COMPRISING AT LEAST ONE ALKENYL AROMATIC COMPOUND HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |