Patent US3954841A successfully refreshed from Google Patents.
US3954841A
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Curable resin compositions
Assignee: Celanese Corp
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Filing: 1974-06-24
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Granted: 1976-05-04
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Expires: 1994-06-24
Abstract
Abstract Curable compositions are provided by the interaction of bis(2-hydroxyethyl) terephthalate with unsaturated epoxy derivatives such as allyl glycidyl ether to form unsaturated poly(ester-ethers).
Inventors
- 👤 Robert W. Stackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:34
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2615; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
73 words
A curable composition consisting essentially of the reaction product of one mole of bis(2-hydroxyethyl) terephthalate and from about 2 moles to about 50 moles of an unsaturated epoxy compound having the formula: ##EQU3## wherein R is an organic radical containing a polymerizable olefinic functional group; R 1 is selected from hydrogen, aliphatic, cycloaliphatic and aromatic groups; and the total number of carbon atoms in the unsaturated epoxy compound varies between four and 22.
Claim 2
Dependent Claim
73 words
A curable composition consisting essentially of the reaction product of one mole of bis(2-hydroxyethyl) terephthalate and from about 2 moles to about 50 moles of an unsaturated epoxy compound having the formula: ##EQU3## wherein R is an organic radical containing a polymerizable olefinic functional group; R 1 is selected from hydrogen, aliphatic, cycloaliphatic and aromatic groups; and the total number of carbon atoms in the unsaturated epoxy compound varies between four and 22.
Claim 3
Dependent Claim
14 words
A curable composition according to claim 1 wherein the unsaturated epoxy compound is 1,2-epoxybutene-3.
Claim 4
Dependent Claim
16 words
A curable composition according to claim 1 wherein the unsaturated epoxy compound is allyl glycidyl ether.
Claim 5
Dependent Claim
56 words
A curable composition corresponding to the formula: ##SPC3## wherein n is a number between one and 10 condensation moieties of an unsaturated epoxy compound haing the formula: ##EQU4## wherein R is an alkenyl group of two four carbon atoms; and R 1 is selected from hydrogen and aliphatic groups containing between one and 18 carbon atoms.
Claim 6
Dependent Claim
56 words
A curable composition corresponding to the formula: ##SPC3## wherein n is a number between one and 10 condensation moieties of an unsaturated epoxy compound haing the formula: ##EQU4## wherein R is an alkenyl group of two four carbon atoms; and R 1 is selected from hydrogen and aliphatic groups containing between one and 18 carbon atoms.
References Cited (Backward Citations)
GB1070595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |