US4521615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of carboxylic acid-containing monoether and polyether polyol addition products
Assignee: Arch Chemicals Inc
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Filing: 1983-03-16
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Granted: 1985-06-04
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Expires: 2003-03-16
Abstract
Abstract Disclosed is a process for making carboxylic acid-containing mono- and polyether polyol addition products by reacting maleic acid, fumaric acid, or mixtures thereof with at least one polyhydroxy-containing mono- or polyether compound (e.g. a polyether diol or triol) in the presence of a peroxy-type free radical initiator. Also disclosed are the processes of making polyurethane prepolymers and aqueous polyurethane dispersions from these carboxylic acid-containing mono- and polyether polyol addition products and processes for using these dispersions in coatings, adhesives and other useful products.
Inventors
- 👤 Richard L. Frentzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:53
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/638; C08F; C08F283/00; C08F283/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0823; C08G18/30; C08G18/34; C08G18/348; C08G18/48; C08G18/632; C08G2170/00; C08G2170/80
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A process for making carboxylic acid-containing monoether and polyether polyol addition products comprising the step of: (a) reacting at least one polyhydroxy-containing monoether or polyether compound with an ethylenically unsaturated dicarboxylic acid selected from the group consisting of maleic acid, fumaric acid, and mixtures thereof in the presence of a peroxy-type free-radical initiator, said weight ratio of said polyhydroxy-containing monoether or polyether compound to said acid being from about 99:1 to about 70:30.
Claim 2
Dependent Claim
73 words
A process for making carboxylic acid-containing monoether and polyether polyol addition products comprising the step of: (a) reacting at least one polyhydroxy-containing monoether or polyether compound with an ethylenically unsaturated dicarboxylic acid selected from the group consisting of maleic acid, fumaric acid, and mixtures thereof in the presence of a peroxy-type free-radical initiator, said weight ratio of said polyhydroxy-containing monoether or polyether compound to said acid being from about 99:1 to about 70:30.
Claim 3
Dependent Claim
30 words
The process of claim 1 wherein said polyhydroxy-containing monoether or polyether compound is derived from polyhydric initiators selected from the group consisting of aliphatic diols, aliphatic triols, and mixtures thereof.
Claim 4
Dependent Claim
25 words
The process of claim 1 wherein said reaction is carried out at a temperature in the range from about 25° C. to about 150° C.
Claim 5
Dependent Claim
68 words
The process of claim 1 wherein said polyhydroxy-containing monoether or polyether compound is selected from the group consisting of polyoxyethylene diols, polyoxyethylene triols, polyoxypropylene diols, polyoxypropylene triols, block and random polyoxy-ethylene-polyoxypropylene diols and triols, and mixtures thereof, and having average molecular weight from about 300 to about 6500 and is reacted said maleic acid and fumaric acid at a temperature from about 80° C. to about 130° C.
Claim 6
Dependent Claim
17 words
A carboxylic acid-containing monoether or polyether polyol addition product made according to the process of claim 1.
Claim 7
Dependent Claim
17 words
A carboxylic acid-containing monoether or polyether polyol addition product made according to the process of claim 4.
References Cited (Backward Citations)
US3383351A
Cited
US3523093A
Cited
US3304273A
Cited
US3419510A
Cited
US3983058A
Cited
US4124552A
Cited
US4207227A
Cited
US4250077A
Cited
US4263413A
Cited
US4365024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |