US3975336A
Expired / Lapsed
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Polymers of nonconjugated 1,4-dienes
Assignee: Goodyear Tire and Rubber Co
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Filing: 1974-11-11
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Granted: 1976-08-17
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Expires: 1994-11-11
Abstract
Abstract This invention discloses homopolymers and interpolymers of nonconjugated diolefins defined by the formula: ##EQU1## where R 1 , R 2 and R 3 may be hydrogen, a lower alkyl group containing up to 4 carbon atoms or an aryl group and R 4 may be a lower alkyl group containing up to 4 carbon atoms or an aryl group. It is also disclosed that these homopolymers and interpolymers can be prepared by solution polymerization employing cationic catalyst systems and also coordination catalyst systems. The polymers are either resinous or rubbery in nature.
Inventors
- 👤 Joginder Lal
- 👤 Paul H. Sandstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:11
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
The compositions of matter comprising homopolymers and interpolymers of nonconjugated diolefins defined by the formula: ##EQU10## where R 1 , R 2 and R 3 are from the group of hydrogen, a lower alkyl group containing up to 4 carbon atoms or an aryl group and R 4 is from the group of a lower alkyl group containing up to 4 carbon atoms or an aryl group, said polymers containing at least 50 mole percent of their repeat units of the structure. ##EQU11## where R 1 , R 2 , R 3 and R 4 are defined as before.
Claim 2
Dependent Claim
99 words
The compositions of matter comprising homopolymers and interpolymers of nonconjugated diolefins defined by the formula: ##EQU10## where R 1 , R 2 and R 3 are from the group of hydrogen, a lower alkyl group containing up to 4 carbon atoms or an aryl group and R 4 is from the group of a lower alkyl group containing up to 4 carbon atoms or an aryl group, said polymers containing at least 50 mole percent of their repeat units of the structure. ##EQU11## where R 1 , R 2 , R 3 and R 4 are defined as before.
Claim 3
Dependent Claim
13 words
The composition according to claim 1 in which the nonconjugated diolefin is cis-1,4-hexadiene.
Claim 4
Dependent Claim
13 words
The composition according to claim 1 in which the nonconjugated diolefin is trans-1,4-hexadiene.
Claim 5
Dependent Claim
13 words
The composition according to claim 1 in which the nonconjugated diolefin is 4-methyl-1,4-hexadiene.
Claim 6
Dependent Claim
13 words
The composition according to claim 1 in which the nonconjugated diolefin is 5-methyl-1,4-hexadiene.
Claim 7
Dependent Claim
18 words
The composition according to claim 1 in which the nonconjugated diolefin is a mixture of cis-1,4- and trans-1,4-hexadienes.
Claim 8
Dependent Claim
18 words
The composition according to claim 1 in which the nonconjugated diolefin is a mixture of 4-methyl-1,4-hexadiene and 5-hexadiene.
Claim 9
Dependent Claim
19 words
The composition according to claim 1 in which the nonconjugated diolefin is a mixture of trans-1,4-hexadiene, 4-methyl-1,4-hexadiene and 5-methyl-1,4-hexadiene.
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) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |