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US4100354A
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Terephthalate ester polyols
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1976-08-05
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Granted: 1978-07-11
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Expires: 1996-08-05
Abstract
Abstract Mixtures of glycols, monomers and oligomers are disclosed which mixtures are converted to terephthalate ester polyols. These terephthalate ester polyols are useful in the production of polyurethane foams. When these polyols are employed to produce polyurethane foams, the resulting foams exhibit excellent flame properties.
Inventors
- 👤 Gwilym E. Owen, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:06
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4219
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
A terephthalate ester polyol comprising the reaction product of a mixture of glycols, monomers and oligomers and a polyhydric alcohol in which said oligomers have the formula ##STR3## wherein m has a value within the range of from 1 to 3, R represents the group --CH 2 CH 2 O] n and n has a value within the range of from 0 to 4 and R 1 represents the group --CH 2 CH 2 -O] x and x has a value within the range of from 1 to 4 and in which said monomers have the formula ##STR4## wherein R is as defined above.
Claim 2
Dependent Claim
104 words
A terephthalate ester polyol comprising the reaction product of a mixture of glycols, monomers and oligomers and a polyhydric alcohol in which said oligomers have the formula ##STR3## wherein m has a value within the range of from 1 to 3, R represents the group --CH 2 CH 2 O] n and n has a value within the range of from 0 to 4 and R 1 represents the group --CH 2 CH 2 -O] x and x has a value within the range of from 1 to 4 and in which said monomers have the formula ##STR4## wherein R is as defined above.
Claim 3
Dependent Claim
19 words
The terephthalate ester polyol of claim 1 in which said polyol has an average hydroxyl functionality greater than two.
Claim 4
Dependent Claim
32 words
The terephthalate ester polyol of claim 1 in which said polyhydric alcohol is selected from a group consisting of glycerin, trimethylolpropane, triethanolamine, pentaerythritol, oxyalkylated glycerine, oxyalkylated trimethylolpropane, oxyalkylated triethanolamine and oxyalkylated pentaerythritol.
Claim 5
Dependent Claim
46 words
The terephthalate ester polyol of claim 1 in which said polyhydric alcohol is present in an amount within a range of from about 4 to about 1 moles of polyhydric alcohol to about 1 to about 4 moles of said mixture of glycols, monomers and oligomers.
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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |