US3979367A
Expired / Lapsed
US
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Polyketone derivative
Assignee: Shell USA Inc
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Filing: 1975-06-13
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Granted: 1976-09-07
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Expires: 1995-06-13
Abstract
Abstract A thermoplastic polymer composition and the method for making the same are disclosed. The polymer composition comprises randomly distributed units of ##EQU1## --CH 2 --CH 2 -- and ##EQU2## or ##EQU3## in specified ratios. The process for producing the polymer comprises reacting a polyketone and a monothiol or dithiol compound in specified amounts.
Inventors
- 👤 Thomas E. Kiovsky
- 👤 Richard C. Kromer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:32
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
The thermoplastic polymer characterized by random distribution along the polymer chain of x units of ##EQU4## y units of --CH 2 --CH 2 -- and z units of ##EQU5## or ##EQU6## where a. R 1 is an alkyl group of from 1 to 4 carbon atoms, R 2 is selected from the group consisting of hdyrogen and alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms, and R 3 is selected from the group consisting of alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms; b. x, y and z are integers; c. y has a value of from about 150 to about 10,000; d. the ratio of x to y varies from about 25:100 to about 100:100; and e. the ratio of z to x varies from about 2:100 to about 25:100.
Claim 2
Dependent Claim
139 words
The thermoplastic polymer characterized by random distribution along the polymer chain of x units of ##EQU4## y units of --CH 2 --CH 2 -- and z units of ##EQU5## or ##EQU6## where a. R 1 is an alkyl group of from 1 to 4 carbon atoms, R 2 is selected from the group consisting of hdyrogen and alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms, and R 3 is selected from the group consisting of alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms; b. x, y and z are integers; c. y has a value of from about 150 to about 10,000; d. the ratio of x to y varies from about 25:100 to about 100:100; and e. the ratio of z to x varies from about 2:100 to about 25:100.
Claim 3
Dependent Claim
37 words
The composition as in claim 1 wherein the thermoplastic polymer is characterized by random distribution along the polymer chain of x units of ##STR20## y units of --CH 2 --CH 2 --, and z units of ##STR21##
Claim 4
Dependent Claim
29 words
The composition as in claim 2 wherein R 1 is an ethylene group and R 2 is selected from the group consisting of hydrogen, methyl, ethyl and propyl groups.
Claim 5
Dependent Claim
27 words
The composition as in claim 2 wherein R 1 is an ethylene group and R 2 is an alkyl group of from 4 to 10 carbon atoms.
Claim 6
Dependent Claim
51 words
The composition as in claim 1 wherein the thermoplastic polymer is characterized by random distribution along the polymer chain of x units of ##STR22## y units of --CH 2 --CH 2 --, and z units of ##STR23## wherein R 3 is an alkyl group of from 1 to 20 carbon atoms.
Claim 7
Dependent Claim
145 words
The process for making a thermoplastic polymer which comprises reacting a polyketone with w moles of a dithiol in the presence of a strong acid catalyst wherein: a. said polyketone is characterized by random distribution along the polymer chain of u units of ##STR24## and v units of --CH 2 --CH 2 --, where u and v are both integers, v has a value of from about 150 to about 10,000, and the ratio of u to v varies from about 25:100 to about 100:100; b. said dithiol has the formula ##STR25## wherein R 1 is an alkyl group of from 1 to 4 carbon atoms and R 2 is selected from the group consisting of hydrogen and alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms; and c. the ratio of w to u varies from about 1:51 to about 1:5.
Claim 8
Dependent Claim
145 words
The process for making a thermoplastic polymer which comprises reacting a polyketone with w moles of a dithiol in the presence of a strong acid catalyst wherein: a. said polyketone is characterized by random distribution along the polymer chain of u units of ##STR24## and v units of --CH 2 --CH 2 --, where u and v are both integers, v has a value of from about 150 to about 10,000, and the ratio of u to v varies from about 25:100 to about 100:100; b. said dithiol has the formula ##STR25## wherein R 1 is an alkyl group of from 1 to 4 carbon atoms and R 2 is selected from the group consisting of hydrogen and alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms; and c. the ratio of w to u varies from about 1:51 to about 1:5.
Claim 9
Dependent Claim
131 words
The process for making a thermoplastic polymer which comprises reacting a polyketone with h moles of a monothiol in the presence of a strong acid catalyst wherein: a. said polyketone is characterized by random distribution along the polymer chain of f units of ##STR26## and g units of --CH 2 --CH 2 --, where f and g are both integers, g has a value of from about 150 to about 10,000, and the ratio of f to g varies from about 25:100 to about 100:100; b. said monothiol has the formula R 3 SH where R 3 is selected from the group consisting of alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms; and c. the ratio of h to f varies from about 2:51 to about 2:5.
Claim 10
Dependent Claim
131 words
The process for making a thermoplastic polymer which comprises reacting a polyketone with h moles of a monothiol in the presence of a strong acid catalyst wherein: a. said polyketone is characterized by random distribution along the polymer chain of f units of ##STR26## and g units of --CH 2 --CH 2 --, where f and g are both integers, g has a value of from about 150 to about 10,000, and the ratio of f to g varies from about 25:100 to about 100:100; b. said monothiol has the formula R 3 SH where R 3 is selected from the group consisting of alkyl, aryl and alkenyl groups of from 1 to 20 carbon atoms; and c. the ratio of h to f varies from about 2:51 to about 2:5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |