Patent US3299182A successfully refreshed from Google Patents.
US3299182A
Expired / Lapsed
US
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High impact, heat and chemical resistant blends of chlorinated polyvinyl chloride and chlorinated polyethylene
Assignee: Goodrich Corp
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Filing: 1961-05-05
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Granted: 1967-01-17
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Garland B Jennings
- 👤 George J Kliner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:49
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/22; C08L27/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE COMPOSITION COMPRISING A MIXTURE OF 100 PARTS BY WEIGHT OF A POST-CHLORINATED POLYVINLY CHLORIDE CHARACTERIZED BY HAVING A HEAT DISTORTION TEMPERATURE, AS MEASURED BY ASTM TEST METHOD D-648, WHICH IS AT LEAST 20*C. HIGHER THAN THAT OF UNCHLORINATED POLYVINYL CHLORIDE, AND FROM 2 TO 8 PARTS BY WEIGHT OF A HOMOGENEOUSLY CHLORINATED POLYMER OF AT LEAST ONE ALIPHATIC ALPHA-OLEFIN SAID ALPHA-OLEFIN HAVING A CHAIN LENGTH NO GREATER THAN 8 CARBON ATOMS AND SAID POLYMER HAVING A MELT INDEX VALUE ABOVE ABOUT 0.05, THE MIXTURE CHARACTERIZED IN THAT IT IS EXTRUDABLE INTO PIPE SUITABLE FOR CONVEYING WATER AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 85*C. TO 120*C.
Claim 2
Dependent Claim
108 words
THE COMPOSITION COMPRISING A MIXTURE OF 100 PARTS BY WEIGHT OF A POST-CHLORINATED POLYVINLY CHLORIDE CHARACTERIZED BY HAVING A HEAT DISTORTION TEMPERATURE, AS MEASURED BY ASTM TEST METHOD D-648, WHICH IS AT LEAST 20*C. HIGHER THAN THAT OF UNCHLORINATED POLYVINYL CHLORIDE, AND FROM 2 TO 8 PARTS BY WEIGHT OF A HOMOGENEOUSLY CHLORINATED POLYMER OF AT LEAST ONE ALIPHATIC ALPHA-OLEFIN SAID ALPHA-OLEFIN HAVING A CHAIN LENGTH NO GREATER THAN 8 CARBON ATOMS AND SAID POLYMER HAVING A MELT INDEX VALUE ABOVE ABOUT 0.05, THE MIXTURE CHARACTERIZED IN THAT IT IS EXTRUDABLE INTO PIPE SUITABLE FOR CONVEYING WATER AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 85*C. TO 120*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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |