US3267178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making interpolymers of monovinyl aromatic compounds, methyl methacrylate and rubbery butadiene polymers
Assignee: Dow Chemical Co
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Filing: 1962-12-26
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Granted: 1966-08-16
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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
2026-10-26 11:03
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR MAKING A THERMOPLASTIC COMPOSITION OF MATTER, WHICH COMPRISES: (1) HEATING AND PARTIALLY POLYMERIZING A LIQUID MIXTURE OF POLYMERIZABLE INGREDIENTS COMPRISING A SOLUTION OF (A) FROM 5 TO 14 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE SOLUTION, OF A RUBBERY BUTADIENE POLYMER THAT IS SOLUBLE IN MONOMERIC STYRENE AND CONTAINS A PREDOMINANT AMOUNT OF BUTADIENE1,3 CHEMICALLY COMBINED IN THE POLYMER MOLECULE, (B) FROM 56 TO 85 PERCENT BY WEIGHT OF METHYLMETHACRYLATE AND (C) FROM 10 TO 35 PERCENT BY WEIGHT OF A MONOVINYL AROMATIC COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
93 words
A PROCESS FOR MAKING A THERMOPLASTIC COMPOSITION OF MATTER, WHICH COMPRISES: (1) HEATING AND PARTIALLY POLYMERIZING A LIQUID MIXTURE OF POLYMERIZABLE INGREDIENTS COMPRISING A SOLUTION OF (A) FROM 5 TO 14 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE SOLUTION, OF A RUBBERY BUTADIENE POLYMER THAT IS SOLUBLE IN MONOMERIC STYRENE AND CONTAINS A PREDOMINANT AMOUNT OF BUTADIENE1,3 CHEMICALLY COMBINED IN THE POLYMER MOLECULE, (B) FROM 56 TO 85 PERCENT BY WEIGHT OF METHYLMETHACRYLATE AND (C) FROM 10 TO 35 PERCENT BY WEIGHT OF A MONOVINYL AROMATIC COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2694692A
Cited
US2862906A
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US3029223A
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US3047534A
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FR1273982A
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US3129199A
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US3178489A
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |