Patent US3242129A successfully refreshed from Google Patents.
US3242129A
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Carboxy terminated polymers as processing aids for polybutadiene
Assignee: Phillips Petroleum Co
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Filing: 1963-03-11
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Granted: 1966-03-22
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Charles R Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:09
CPC Classifications
C; C08; C08L; C08L9/00; C08L19/00; C08L19/006
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
80 words
A RUBBERY COMPOSITION OF MATTER COMPRISING A MAJOR PORTION OF A BLEND OF (1) A POLYBUTADIENE SELECTED FROM THE GROUP CONSISTING OF (A) A CIS-POLYBUTADIENE CONTAINING AT LEAST 85 PERCENT CIS-1,4-ADDITION AND (B) A POLYBUTADIENE PREPARED WITH A LITHIUM BASED CATALYST AND (2) FROM 0.5 TO 10 PARTS BY WEIGHT OF A CARBOXYTERMINATED LIQUID POLYBUTADIENE PER 100 PARTS BY WEIGHT OF COMPONENT (1), SAID CARBOXY-TERMINATED LIQUID POLYBUTADIENE HAVING A CARBOXYL CONTENT IN THE RANGE OF 0.5 TO 5 WEIGHT PERCENT.
Claim 2
Dependent Claim
80 words
A RUBBERY COMPOSITION OF MATTER COMPRISING A MAJOR PORTION OF A BLEND OF (1) A POLYBUTADIENE SELECTED FROM THE GROUP CONSISTING OF (A) A CIS-POLYBUTADIENE CONTAINING AT LEAST 85 PERCENT CIS-1,4-ADDITION AND (B) A POLYBUTADIENE PREPARED WITH A LITHIUM BASED CATALYST AND (2) FROM 0.5 TO 10 PARTS BY WEIGHT OF A CARBOXYTERMINATED LIQUID POLYBUTADIENE PER 100 PARTS BY WEIGHT OF COMPONENT (1), SAID CARBOXY-TERMINATED LIQUID POLYBUTADIENE HAVING A CARBOXYL CONTENT IN THE RANGE OF 0.5 TO 5 WEIGHT PERCENT.
Claim 3
Dependent Claim
73 words
IN A METHOD FOR IMPROVING THE PROCESSABILTY OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) A CIS-POLYBUTADIENE HAVING AT LEAST 85 PERCENT CIS-1,4-ADDITION AND (B) A POLYBUTADIENE PREPARED, WITH A LITHIUM BASED CATALYST, THE IMPROVEMENT WHICH COMPRISES ADMIXING 100 PARTS BY WEIGHT OF SAID POLYMER WITH FROM 0.5 TO 10 PARTS BY WEIGHT OF A CARBOXY-TERMINATED LIQUID POLYBUTADIENE HAVING A CARBOXYL CONTENT IN THE RANGE OF 0.5 TO 5 WEIGHT PERCENT.
Claim 4
Dependent Claim
73 words
IN A METHOD FOR IMPROVING THE PROCESSABILTY OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) A CIS-POLYBUTADIENE HAVING AT LEAST 85 PERCENT CIS-1,4-ADDITION AND (B) A POLYBUTADIENE PREPARED, WITH A LITHIUM BASED CATALYST, THE IMPROVEMENT WHICH COMPRISES ADMIXING 100 PARTS BY WEIGHT OF SAID POLYMER WITH FROM 0.5 TO 10 PARTS BY WEIGHT OF A CARBOXY-TERMINATED LIQUID POLYBUTADIENE HAVING A CARBOXYL CONTENT IN THE RANGE OF 0.5 TO 5 WEIGHT PERCENT.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |