Patent US3707303A successfully refreshed from Google Patents.
Patent US4182725A successfully refreshed from Google Patents.
US4182725A
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Novel bisphenol derivatives and uses thereof
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1978-04-03
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Granted: 1980-01-08
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Expires: 1998-04-03
Abstract
Abstract Novel bisphenol condensation derivatives including polyphosphorous, polyborate, polycarbonate and polysilicate products which are capped with various capping agents such as phenoxy or alkoxy compounds are effective stabilizers for a wide spectrum of hydrocarbon polymeric materials against their thermal oxidative and photochemical degradations.
Inventors
- 👤 Joseph C. Floyd
- 👤 Don A. Plank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/005; C08G; C08G64/00; C08G64/04; C08G64/06; C08G79/00; C08G79/02; C08G79/04; C08G79/08; C08L; C08L101/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
A composition of matter having the following structural formula: ##STR37## wherein: (1) R is selected from the group consisting of --H, C 1 -C 18 alkyl groups, and an aryl group; (2) X is selected from the group consisting of --S--, ##STR38## wherein A is a C 1 -C 16 alkylene or an arylene group; (3) Y is ##STR39## where W is --(CH 2 ) 2 --S--(CH 2 ) k --S--(CH 2 ) 2 -- and wherein k ranges from 0 to 10; (4) Z is selected from the group consisting of ##STR40## wherein R 2 is --H or a C 1 -C 18 alkyl group, --OH, and OR 3 and R 3 is a C 1 -C 18 alkyl group, and (5) n is a value ranging from 1 to about 15.
Claim 2
Dependent Claim
133 words
A composition of matter having the following structural formula: ##STR37## wherein: (1) R is selected from the group consisting of --H, C 1 -C 18 alkyl groups, and an aryl group; (2) X is selected from the group consisting of --S--, ##STR38## wherein A is a C 1 -C 16 alkylene or an arylene group; (3) Y is ##STR39## where W is --(CH 2 ) 2 --S--(CH 2 ) k --S--(CH 2 ) 2 -- and wherein k ranges from 0 to 10; (4) Z is selected from the group consisting of ##STR40## wherein R 2 is --H or a C 1 -C 18 alkyl group, --OH, and OR 3 and R 3 is a C 1 -C 18 alkyl group, and (5) n is a value ranging from 1 to about 15.
Claim 3
Dependent Claim
23 words
The composition according to claim 1 wherein R is selected from the group consisting of --H and C 1 -C 18 alkyl groups.
Claim 4
Dependent Claim
10 words
The composition according to claim 1 wherein X is ##STR41##
Claim 5
Dependent Claim
28 words
The composition according to claim 1 wherein Z is ##STR42## wherein R 2 is selected from the group consisting of --H and C 1 -C 18 alkyl groups.
Claim 6
Dependent Claim
158 words
A composition of matter comprising an oxidatively degradable organic material selected from the group consisting of polyolefins, polyvinyl chloride, elastomers, polycarbonate plastics, lubricants, fuels, naptha, greases, waxes and petroleum resins having the following structural formula: ##STR43## wherein: (1) R is selected from the group consisting of --H, C 1 -C 18 alkyl groups, and an aryl group; (2) X is selected from the group consisting of ##STR44## wherein A is a C 1 -C 16 alkylene or an arylene group; (3) Y is ##STR45## wherein W is --(CH 2 ) 2 --S--(CH 2 ) k --S--(CH 2 ) 2 -- and wherein k ranges from 0 to 10; (4) Z is selected from the group consisting of ##STR46## wherein R 2 is --H or a C 1 -C 18 alkyl group, --OH, and OR 3 and R 3 is a C 1 -C 18 alkyl group; and (5) n is a value ranging from 1 to about 15.
Claim 7
Dependent Claim
158 words
A composition of matter comprising an oxidatively degradable organic material selected from the group consisting of polyolefins, polyvinyl chloride, elastomers, polycarbonate plastics, lubricants, fuels, naptha, greases, waxes and petroleum resins having the following structural formula: ##STR43## wherein: (1) R is selected from the group consisting of --H, C 1 -C 18 alkyl groups, and an aryl group; (2) X is selected from the group consisting of ##STR44## wherein A is a C 1 -C 16 alkylene or an arylene group; (3) Y is ##STR45## wherein W is --(CH 2 ) 2 --S--(CH 2 ) k --S--(CH 2 ) 2 -- and wherein k ranges from 0 to 10; (4) Z is selected from the group consisting of ##STR46## wherein R 2 is --H or a C 1 -C 18 alkyl group, --OH, and OR 3 and R 3 is a C 1 -C 18 alkyl group; and (5) n is a value ranging from 1 to about 15.
Claim 8
Dependent Claim
46 words
The composition according to claim 5 which comprises an effective amount of a co-stabilizer selected from the group consisting of dialkyl sulfides having the structural formulas of R 3 --S--R 3 and R 3 ##STR47## wherein R 3 is a C 1 -C 30 alkyl group.
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) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |