US4703114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethers having tertiary alcoholic terminals
Assignee: DKS Co Ltd
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Filing: 1985-08-09
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Granted: 1987-10-27
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Expires: 2005-08-09
Abstract
Abstract Polyethers of the formula: ##STR1## wherein: R is the residue of a starting active hydrogen compound with removal of the active hydrogen atom, R 1 is a C 1 -C 10 alkyl or aryl, R 2 is a C 1 -C 10 alkyl, R 3 is H, CH 3 , C 2 H 5 or phenyl, x is 5-100, y is 1-5, and z is 2-8 are less active than those having primary or secondary alcoholic function at terminals.
Inventors
- 👤 Shigeo Mori
- 👤 Junichiro Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:16
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4854; C08G18/4858; C08G63/00; C08G63/66; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2618; C08G65/2621
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A polyether of the formula: ##STR6## wherein: R is the residue of a compound selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, hexanediol, glycerine, trimethylol propane, pentaerythritol, sorbitol and sucrose with removal of the active hydrogen atoms thereof, R 1 is a C 1 -C 10 alkyl or aryl, R 2 is a C 1 -C 10 alkyl, R 3 is H, CH 3 , C 2 H 5 or phenyl, x is 5-100, y is 1-5, and z is 2-8.
Claim 2
Dependent Claim
85 words
A polyether of the formula: ##STR6## wherein: R is the residue of a compound selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, hexanediol, glycerine, trimethylol propane, pentaerythritol, sorbitol and sucrose with removal of the active hydrogen atoms thereof, R 1 is a C 1 -C 10 alkyl or aryl, R 2 is a C 1 -C 10 alkyl, R 3 is H, CH 3 , C 2 H 5 or phenyl, x is 5-100, y is 1-5, and z is 2-8.
Claim 3
Dependent Claim
17 words
A polyether of claim 1, wherein R 1 is methyl and R 2 is methyl or phenyl.
Claim 4
Dependent Claim
14 words
A polyether of claim 2, wherein R 3 is H or CH 3 .
Claim 5
Dependent Claim
14 words
A polyether of claim 1, wherein R 1 and R 2 each are methyl.
Claim 6
Dependent Claim
17 words
A polyether of claim 1, wherein R is the residue of butanediol, glycerine, trimethylolpropane, sorbitol or sucrose.
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) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |