US3671572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyesters prepared from {60 ,{60 {40 -dimethyl muconic acids
Assignee: Sunoco Inc
•
Filing: 1969-03-10
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Granted: 1972-06-20
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Expires: 1989-03-10
Abstract
Abstract Normally liquid curable polyesters that are plasticizers which add ultraviolet stability to solid vinyl chloride polymers are prepared from Alpha , Alpha ''-dimethyl muconic acids and derivatives thereof and polyethylene glycols.
Inventors
- 👤 Gary L Driscoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:39
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
18 words
The interpolyester according to claim 1 wherein the organic diacid component is Alpha , Alpha ''-dimethyl-cis, cis-muconic acid.
Claim 2
Dependent Claim
17 words
The interpolyester according to claim 1 wherein the organic diacid is Alpha , Alpha ''-dimethyl-trans, trans-muconic acid.
Claim 3
Dependent Claim
18 words
The interpolyester according to claim 1 wherein the organic diacid component is Alpha , Alpha ''-dimethyl-cis, trans-muconic acid.
Claim 4
Dependent Claim
30 words
The interpolyester according to claim 1 wherein the mole ratio of ether glycol component to organic diacid component is in the range of 0.95 : 1.0 to 1.1 : 1.0.
Claim 5
Dependent Claim
18 words
The interpolyester according to claim 5 wherein the molecular weight is in the range of 600 to 20,000.
Claim 6
Dependent Claim
29 words
The interpolyester according to claim 1 wherein the ether glycol component is selected from the group consisting of diethylene glycol, triethylene glycol, tetraethylene glycol, decoethylene glycol and dodecaethylene glycol.
Claim 7
Dependent Claim
22 words
The interpolyester according to claim 1 wherein the ether glycol component is polyethylene glycol having a molecular weight average of about 300.
Claim 8
Dependent Claim
34 words
The interpolyester according to claim 1 wherein the organic diacid component is Alpha , Alpha ''-dimethyl-cis, cis-muconic acid and the ether glycol component is polyethylene glycol having a molecular weight average of about 300.
Claim 9
Dependent Claim
34 words
The interpolyester according to claim 1 wherein the organic diacid component is Alpha , Alpha ''-dimethyl-trans, trans-muconic acid and the ether glycol component is polyethylene glycol having a molecular weight average of about 300.
References Cited (Backward Citations)
US3429949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |