US4014854A
Expired / Lapsed
US
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Linear copolymers of glycidol
Assignee: Dow Chemical Co
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Filing: 1974-02-20
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Granted: 1977-03-29
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Expires: 1994-02-20
Abstract
Abstract Linear copolymers of glycidol, glycidyl esters of unsaturated fatty acids and, optionally, alkylene oxides, are made by the reaction of an unsaturated fatty acid with a polymer or copolymer of tert.-butyl glycidyl ether in the presence of an acid catalyst. The products are polymerizable and copolymerizable with vinyl monomers and are useful as curable resins.
Inventors
- 👤 Violete L. Stevens
- 👤 Arthur R. Sexton
- 👤 Frederick P. Corson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3324; C08G65/3322; C08L; C08L71/00; C08L71/02; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
Compounds of the formula R [(R'O).sub.m X].sub.n wherein R is the residue left by the removal of n active hydrogen atoms from an initiator compound, RH n ; each R' independently is an alkylene radical selected from the group consisting of ethylene, trimethylene, tetramethylene, 1,2-butylene, 2,2-bis(halomethyl)-1,3-propylene, and groups of the formula ##EQU3## each A independently is H, Cl, Br, or OX; each X independently is H or the acyl radical of a carboxylic acid with the proviso that at least one R' is 3-hydroxy-1,2-propylene and at least one is a group of the formula ##EQU4## wherein X is the acyl radical of an α,β-unsaturated carboxylic acid; and m and n are integers such that the total number of R'O groups is at least 2, n being 1-8.
Claim 2
Dependent Claim
127 words
Compounds of the formula R [(R'O).sub.m X].sub.n wherein R is the residue left by the removal of n active hydrogen atoms from an initiator compound, RH n ; each R' independently is an alkylene radical selected from the group consisting of ethylene, trimethylene, tetramethylene, 1,2-butylene, 2,2-bis(halomethyl)-1,3-propylene, and groups of the formula ##EQU3## each A independently is H, Cl, Br, or OX; each X independently is H or the acyl radical of a carboxylic acid with the proviso that at least one R' is 3-hydroxy-1,2-propylene and at least one is a group of the formula ##EQU4## wherein X is the acyl radical of an α,β-unsaturated carboxylic acid; and m and n are integers such that the total number of R'O groups is at least 2, n being 1-8.
Claim 3
Dependent Claim
27 words
The compounds of claim 1 wherein R is the residue of a hydroxy compound free of groups other than OH that are reactive with an alkylene oxide.
Claim 4
Dependent Claim
15 words
The compounds of claim 2 wherein the hydroxy compound is water or an alkylene glycol.
Claim 5
Dependent Claim
15 words
The compounds of claim 1 wherein R is the residue of an aromatic hydroxy compound.
Claim 6
Dependent Claim
13 words
The compounds of claim 4 wherein R is the residue of bisphenol A.
Claim 7
Dependent Claim
12 words
The compounds of claim 1 wherein R is the residue of glycerol.
Claim 8
Dependent Claim
12 words
The compounds of claim 1 wherein at least one R' is tetramethylene.
Claim 9
Dependent Claim
12 words
The compounds of claim 1 wherein m is about 3 to 300.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |