Patent US2684352A successfully refreshed from Google Patents.
US2684352A
Expired / Lapsed
US
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High impact strength thermoplastic composition containing polyvinyl acetal resin and butadiene elastomer
Assignee: Uniroyal Inc
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Filing: 1953-10-12
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Granted: 1954-07-20
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Expires: 1973-10-12
Abstract
No abstract record available.
Inventors
- 👤 Charles F Fisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:31
CPC Classifications
C; C09; C09D; C09D129/00; C09D129/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A HARD, RIGID, TOUGH, THERMOPLASTIC GUM PLASTIC MATERIAL HAVING AN IMPACT STRENGTH OF AT LEAST 4 FOOT-POUNDS AND A FLEXURAL MODULUS OVER 100,000 P. S. I., CONSISTING ESSENTIALLY OF AN UNPLASTICIZED MIXTURE OF FROM 95 TO 70 PARTS OF A POLYVINYL ACETAL RESIN CONTAINING NOT MORE THAN 25 MOLEPER CENT OF RESIDUAL POLYVINYL ACETATE AND POLYVINYL ALCOHOL, AND CORRESPONDINGLY FROM 5 TO 30 PARTS OF A RUBBERY COPOLYMER OF AT LEAST 25 WEIGHTPER CENT OF A BUTADIENE WITH A COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, LOWER ALKYL ACRYLATES, LOWER ALKYL METHACRYLATES, STYRENE AND 2-METHYL-5-VINYL PYRIDINE.
Claim 2
Dependent Claim
100 words
A HARD, RIGID, TOUGH, THERMOPLASTIC GUM PLASTIC MATERIAL HAVING AN IMPACT STRENGTH OF AT LEAST 4 FOOT-POUNDS AND A FLEXURAL MODULUS OVER 100,000 P. S. I., CONSISTING ESSENTIALLY OF AN UNPLASTICIZED MIXTURE OF FROM 95 TO 70 PARTS OF A POLYVINYL ACETAL RESIN CONTAINING NOT MORE THAN 25 MOLEPER CENT OF RESIDUAL POLYVINYL ACETATE AND POLYVINYL ALCOHOL, AND CORRESPONDINGLY FROM 5 TO 30 PARTS OF A RUBBERY COPOLYMER OF AT LEAST 25 WEIGHTPER CENT OF A BUTADIENE WITH A COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, LOWER ALKYL ACRYLATES, LOWER ALKYL METHACRYLATES, STYRENE AND 2-METHYL-5-VINYL PYRIDINE.
References Cited (Backward Citations)
GB405986A
Cited
US2318547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |