US2686172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tough, strong, and easily processed vinyl chloride interpolymers containing free side-chain hydroxyl groups
Assignee: Goodrich Corp
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Filing: 1951-05-22
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Granted: 1954-08-10
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Expires: 1971-05-22
Abstract
No abstract record available.
Inventors
- 👤 Robert J Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:16
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F220/00; C08F220/02; C08F220/10; C08F220/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A STRONG, EASILY-PROCESSABLE, THEROMPLASTIC TRIPOLYMER MADE BY POLYMERIZING A MIXTURE OF MONOMERIC MATERIALS CONSISTING OF VINYL CHLORIDE, AN ALKYL ESTER OF ACRYLIC ACID IN WHICH THE ALKYL GROUP CONTAINS A TOTAL OF 8 TO 10 CARBON ATOMS AND POSSESSES A CARBON CHAIN OF 6 TO 10 ATOMS AND A HYDROXY-ALKYL ESTERS OF ACRYLIC ACID IN WHICH THE ALKYL GROUP CONTAINS FROM 2 TO 10 CARBON ATOMS AND POSSESSES A CARBON CHAIN OF 2 TO 8 ATOMS, THE SAID HYDROXY-ALKYL ESTER BEING PRESENT IN AN AMOUNT FROM ABOUT 0.5 TO 10% BY WEIGHT AND THE SAID VINYL CHLORIDE BEING PRESENT IN AN AMOUNT BY WEIGHT ABOUT TWICE THAT OF THE SAID ALKYL ESTER OF ACRYLIC ACID, SAID TRIPOLYMER BEING CHARACTERIZED BY BEING EASILY PROCESSABLE AT TEMPERATURES OF 125 TO 400* F. AND AFTER BEING PROCESSED AT SUCH TEMPERATURE, BY POSSESSING A TENSILE STRENGTH CONSIDERABLY HIGHER THAN THAT OF A TWOCOMPONENT COPOLYMER OF VINYL CHLORIDE AND THE SAID ALKYL ACRYLATE IN THE SAME RELATIVE PROPORTIONS.
Claim 2
Dependent Claim
163 words
A STRONG, EASILY-PROCESSABLE, THEROMPLASTIC TRIPOLYMER MADE BY POLYMERIZING A MIXTURE OF MONOMERIC MATERIALS CONSISTING OF VINYL CHLORIDE, AN ALKYL ESTER OF ACRYLIC ACID IN WHICH THE ALKYL GROUP CONTAINS A TOTAL OF 8 TO 10 CARBON ATOMS AND POSSESSES A CARBON CHAIN OF 6 TO 10 ATOMS AND A HYDROXY-ALKYL ESTERS OF ACRYLIC ACID IN WHICH THE ALKYL GROUP CONTAINS FROM 2 TO 10 CARBON ATOMS AND POSSESSES A CARBON CHAIN OF 2 TO 8 ATOMS, THE SAID HYDROXY-ALKYL ESTER BEING PRESENT IN AN AMOUNT FROM ABOUT 0.5 TO 10% BY WEIGHT AND THE SAID VINYL CHLORIDE BEING PRESENT IN AN AMOUNT BY WEIGHT ABOUT TWICE THAT OF THE SAID ALKYL ESTER OF ACRYLIC ACID, SAID TRIPOLYMER BEING CHARACTERIZED BY BEING EASILY PROCESSABLE AT TEMPERATURES OF 125 TO 400* F. AND AFTER BEING PROCESSED AT SUCH TEMPERATURE, BY POSSESSING A TENSILE STRENGTH CONSIDERABLY HIGHER THAN THAT OF A TWOCOMPONENT COPOLYMER OF VINYL CHLORIDE AND THE SAID ALKYL ACRYLATE IN THE SAME RELATIVE PROPORTIONS.
References Cited (Backward Citations)
US2412475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |