Patent US3970631A successfully refreshed from Google Patents.
US3970631A
Expired / Lapsed
US
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Triesters of triethanolmethane and monocarboxylic acids as plasticizers for polyvinyl chloride
Assignee: Chevron USA Inc
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Filing: 1975-08-25
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Granted: 1976-07-20
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Expires: 1995-08-25
Abstract
Abstract Triesters of triethanolmethane and a monocarboxylic acid, wherein said acid has from 3 to 15 carbon atoms. The triesters are particularly useful as plasticizers in polyvinyl chloride.
Inventors
- 👤 Robert Bacskai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
32 words
Polyvinyl chloride containing a triester of the following formula: ##EQU4## wherein R 1 , R 2 and R 3 are alkyl or hydrocarbyl aryl groups having from 2 to 14 carbon atoms.
Claim 2
Dependent Claim
32 words
Polyvinyl chloride containing a triester of the following formula: ##EQU4## wherein R 1 , R 2 and R 3 are alkyl or hydrocarbyl aryl groups having from 2 to 14 carbon atoms.
Claim 3
Dependent Claim
27 words
A composition in accordance with claim 1 wherein R 1 , R 2 and R 3 are aryl or alkyl groups of 6 to 8 carbon atoms.
Claim 4
Dependent Claim
25 words
A composition in accordance with claim 1 wherein R 1 , R 2 and R 3 are alkyl groups of 6 to 8 carbon atoms.
Claim 5
Dependent Claim
4 words
Polyvinyl chloride containing triethanolmethanetri-2-ethylhexanoate.
Claim 6
Dependent Claim
4 words
Polyvinyl chloride containing triethanolmethanetri-2-ethylhexanoate.
Claim 7
Dependent Claim
4 words
Polyvinyl chloride containing triethanolmethanetrihexanoate.
Claim 8
Dependent Claim
4 words
Polyvinyl chloride containing triethanolmethanetrihexanoate.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |