US3767606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blend of methacrylic resin with ethylene vinyl acetate copolymer vinyl chloride graft copolymer
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1971-04-21
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Granted: 1973-10-23
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Expires: 1991-04-21
Abstract
Abstract A THERMOPLASTIC RESIN COMPOSITION EXCELLENT IN TRANSPARENCY AND RESISTANCE TO IMPACT WHICH COMPRISES A MIXTURE CONTAINING ABOUT 1 TO ABOUT 99% BY WEIGHT OF A METHACRYLIC RESIN, AND A BALANCE OF AN ETHYLENE: VINYL ACETATE COPOLYMER-VINYL CHLORIDE GRAFT COPOLYMER WHEREIN THE ETHYLENE: VINYL ACETATE COPOLYMER COMPONENT IS DISPERSED IN AN "ISLAND STATE," ADMIXED WITH FROM 0 TO ABOUT 30 PARTS BY WEIGHT OF A VINYL CHLORIDE RESIN PER 100 PARTS BY WEIGHT OF THE MIXTURE.
Inventors
- 👤 H Kishikawa
- 👤 K Yasuno
- 👤 S Kitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:31
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L51/00; C08L51/003; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |