US4081420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxymethyloxysuccinic acid esters as plastic plasticizers
Assignee: Lever Brothers Co
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Filing: 1976-07-19
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Granted: 1978-03-28
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Expires: 1996-07-19
Abstract
Abstract There are disclosed herein novel ester compounds which can be used as detergent solvents and plasticizers for resins, the compounds having the general formula: ##STR1## wherein R 1 is selected from the group consisting of --H and --CH 3 ; R 2 , R 3 and R 4 , which may be the same or different substituents, are selected from the group consisting of straight and branched chain alkyl groups having from 1 to 12 carbon atoms, benzyl and cyclohexyl; R 5 is selected from the group --H, --CH 3 and --C 2 H 5 ; and b=0 or 1.
Inventors
- 👤 Vincent Lamberti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2093; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A plastic composition comprising a polymer and as a plasticizer for the polymer from about 1 to about 75 weight percent based on the weight of the total plastic composition of a compound havng the formula: ##STR4## wherein R 1 is selected from the group consisting of --H and --CH 3 ; R 2 , R 3 and R 4 , which may be the same or different substituents, are selected from the group consisting of straight and branched chain alkyl groups having from 1 to 12 carbon atoms, benzyl and cyclohexyl; R 5 is selected from the group consisting of --H, --CH 3 and --C 2 H 5 ; and, b = 0,1.
Claim 2
Dependent Claim
114 words
A plastic composition comprising a polymer and as a plasticizer for the polymer from about 1 to about 75 weight percent based on the weight of the total plastic composition of a compound havng the formula: ##STR4## wherein R 1 is selected from the group consisting of --H and --CH 3 ; R 2 , R 3 and R 4 , which may be the same or different substituents, are selected from the group consisting of straight and branched chain alkyl groups having from 1 to 12 carbon atoms, benzyl and cyclohexyl; R 5 is selected from the group consisting of --H, --CH 3 and --C 2 H 5 ; and, b = 0,1.
Claim 3
Dependent Claim
29 words
A plastic composition as defined in claim 1 wherein the plasticizer is present from about 10 to about 70 weight percent, based on the weight of the total composition.
Claim 4
Dependent Claim
39 words
A plastic composition as defined in claim 1 wherein R 2 , R 3 and R 4 are selected from the group consisting of straight and branched chain alkyl groups having from about 4 to about 12 carbon atoms.
Claim 5
Dependent Claim
46 words
A plastic composition as defined in claim 1 wherein the plasticizer is an ester derived from straight and branched chain alcohols having from 4 to 12 carbon atoms and an acid selected from the group consisting of carboxymethyloxysuccinic acid, lactoxysuccinic acid, carboxymethyloxymethylsuccinic acid and α-carboxymethyloxy-β-methylsuccinic acid.
References Cited (Backward Citations)
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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) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |