US4661541A
Expired / Lapsed
US
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Alcohol-modified polyepoxides, their preparation and their use in curable mixtures
Assignee: BASF Farben und Fasern AG
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Filing: 1985-03-14
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Granted: 1987-04-28
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Expires: 2005-03-14
Abstract
Abstract This application discloses a synthetic resin based on alcohol-modified polyepoxides. The synthetic resin can be prepared by reacting a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, with compounds with a hydroxyl group, which is reactive towards epoxide groups, in a molar ratio from about 2:1 to about 7:6 at temperatures from about 100° C. to about 180° C. in an organic solvent free of hydroxyl groups. The synthetic resin has terminal epoxide groups and a mean molecular weight from about 400 to about 5000.
Inventors
- 👤 Wolfgang Batzill
- 👤 Arnold Dobbelstein
- 👤 Michael Geist
- 👤 Georg Schon
- 👤 Gunther Ott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/18; C08G59/40; C08G59/50; C08G59/56; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
105 words
A synthetic resin based on alcohol-modified polyepoxides, comprising the reaction product of: Component A which is a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, with Component B which is a compound containing one hydroxyl group which is reactive with epoxide groups, wherein Component A is reacted with Component B in a molar ratio of about 2:1 to about 7:6 and at temperatures from about 100° C. to about 180° C. in an organic solvent free of hydroxyl groups, the synthetic resin having terminal epoxide groups and a mean molecular weight from about 400 to about 5000.
Claim 2
Dependent Claim
105 words
A synthetic resin based on alcohol-modified polyepoxides, comprising the reaction product of: Component A which is a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, with Component B which is a compound containing one hydroxyl group which is reactive with epoxide groups, wherein Component A is reacted with Component B in a molar ratio of about 2:1 to about 7:6 and at temperatures from about 100° C. to about 180° C. in an organic solvent free of hydroxyl groups, the synthetic resin having terminal epoxide groups and a mean molecular weight from about 400 to about 5000.
Claim 3
Dependent Claim
16 words
The resin according to claim 1 wherein said molar ratio is about 2:1 to about 5:4.
Claim 4
Dependent Claim
16 words
The resin according to claim 1 wherein said molar ratio is about 2:1 to about 4:3.
Claim 5
Dependent Claim
110 words
The synthetic resin according to claim 1, which comprises the reaction product of component A and B, further reacted with component C, wherein component C comprises about 5-60% by weight, based on the sum of the weights of components A, B and C, and component C is a polyhydric alcohol, a polycarboxylic acid, a polyamine or a polysulfide having a molecular weight of from about 100 to about 3500, the proportion of component C in said reaction having been selected, as a function of its molecular weight, such that the molar ratio of the reaction product of A and B relative to component C is about 4:1 to about 0.8:1.
Claim 6
Dependent Claim
31 words
The synthetic resin according to claim 4 wherein component A is reacted with component B in a molar ratio of component A to component B of about 2:1 to about 5:4.
Claim 7
Dependent Claim
31 words
The synthetic resin according to claim 4 wherein component A is reacted with component B in a molar ratio of component A to component B of about 2:1 to about 4:3.
Claim 8
Dependent Claim
30 words
The synthetic resin according to claim 4, 5 or 6 wherein the molar ratio of the reaction product of component A and B relative to component C is about 2:1.
Claim 9
Dependent Claim
163 words
The synthetic resin according to claim 1, which comprises the reaction product of components A and B further reacted with component C, wherein component C comprises about 5-60% by weight, based on the sum of components A, B and C, of a polyphenol of the following general formula: ##STR8## wherein X=alkylene, arylene, alkarylene, O, O-alkylene, O-arylene, O-alkarylene, S, S-alkylene, S-arylene, S-alkarylene, CO, CO-alkylene, CO-arylene, CO-alkarylene, NH, NH-alkylene, NH-arylene or NH-alkarylene x=0 or 1 ##STR9## Z=alkylene, or an alkylene radical based on polyesters, polyethers, polyamides, polycarbonates or polyurethanes, R=H, CH 3 , alkyl, --O--CH 3 , --O--alkyl, --NO 2 , --NR' 2 , --NR'R" or --NHCOR'", wherein R', R" and R'" constitute straight or branched chain alkyl moieties of 1 to about 6 carbon atoms, the proportion of component C having been selected, as a function of its molecular weight, such that the molar ratio of the reaction product of components A and B relative to component C is about 4:1 to about 0.8:1.
Claim 10
Dependent Claim
51 words
The synthetic resin according to claim 1, 4 or 8, comprising the reaction product of said claim reacted further with component D, wherein component D is a primary and/or secondary amine or a salt thereof and/or the salt of a tertiary amine, of a sulfide/acid mixture or of a phosphate/acid mixture.
Claim 11
Dependent Claim
24 words
The synthetic resin according to claim 9, which has at least partially been neutralized with an acid and converted into a predominantly aqueous phase.
Claim 12
Dependent Claim
37 words
The synthetic resin according to claim 1, 4, 8, 9 or 10, wherein said component B includes, in addition to said reactive hydroxyl group, at least one sterically hindered hydroxyl group which is unreactive toward epoxide groups.
Claim 13
Dependent Claim
28 words
The synthetic resin according to claim 1, 4, 8, 9, 10 or 11, wherein components A and B are reacted in the presence of a tertiary amine catalyst.
Claim 14
Dependent Claim
109 words
A process for preparing a synthetic resin by modifying a polyepoxide with an alcohol, which comprises reacting: Component A which is a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, at temperatures from about 100° C. to about 180° C. in a solvent free from hydroxyl groups, with Component B which is an hydroxyl group containing compound, which is reactive with epoxide groups, wherein the molar ratio of component A to component B is about 2:1 to about 7:6, to provide a synthetic resin having terminal epoxide groups and having a mean molecular weight of from about 400 to about 5000.
Claim 15
Dependent Claim
109 words
A process for preparing a synthetic resin by modifying a polyepoxide with an alcohol, which comprises reacting: Component A which is a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, at temperatures from about 100° C. to about 180° C. in a solvent free from hydroxyl groups, with Component B which is an hydroxyl group containing compound, which is reactive with epoxide groups, wherein the molar ratio of component A to component B is about 2:1 to about 7:6, to provide a synthetic resin having terminal epoxide groups and having a mean molecular weight of from about 400 to about 5000.
Claim 16
Dependent Claim
16 words
The process according to claim 13 wherein said molar ratio is about 2:1 to about 5:4.
Claim 17
Dependent Claim
16 words
The process according to claim 13 wherein said molar ratio is about 2:1 to about 4:3.
Claim 18
Dependent Claim
106 words
The process according to claim 13, 14 or 15, wherein the reaction product of component A and B is reacted further with component C, wherein component C comprises about 5-60% by weight, based on the sum of components A, B and C, and component C is a polyhydric alcohol, a polycarboxylic acid, a polyamine or a polysulfide having a molecular weight from about 100 to about 3500, the proportion of component C having been selected, as a function of its molecular weight, such that the molar ratio of the reaction product of components A and B relative to component C is about 4:1 to about 0.8:1.
Claim 19
Dependent Claim
26 words
The process according to claim 16 wherein the molar ratio of the reaction product of components A and B relative to component C is about 2:1.
Claim 20
Dependent Claim
164 words
The process according to claim 13, 14 or 15, wherein the reaction product of components A and B is reacted further with component C, wherein component C comprises about 5-60% by weight, based on the sum of components A, B and C, of a polyphenol of the following general formula: ##STR10## wherein X=alkylene, arylene, alkarylene, O, O-alkylene, O-arylene, O-alkarylene, S, S-alkylene, S-arylene, S-alkarylene, CO, CO-alkylene, CO-arylene, CO-alkarylene, NH, NH-alkylene, NH-arylene or NH-alkarylene x=0 or 1 ##STR11## Z=alkylene, or an alkylene radical based on polyesters, polyethers, polyamides, polycarbonates or polyurethanes, R=H, CH 3 , alkyl, --O--CH 3 , --O---alkyl, --NO 2 , --NR' 2 , --NR'R" or --NHCOR'", wherein R', R" and R'" are branched or straight chain alkyl moieties of 1 to about 6 carbon atoms, the proportion of component C having been selected, as a function of its molecular weight, such that the molar ratio of the reaction product from A and B relative to component C is about 4:1 to about 0.8:1.
Claim 21
Dependent Claim
26 words
The process according to claim 18 wherein the molar ratio of the reaction product of components A and B relative to component C is about 2:1.
Claim 22
Dependent Claim
49 words
A process according to claim 13, 16 or 18, wherein the reaction product of said claim is reacted further with component D which is a primary and/or secondary amine or a salt thereof and/or the salt of a tertiary amine, of a sulfide/acid mixture or of a phosphine/acid mixture.
Claim 23
Dependent Claim
24 words
The process according to claim 20, wherein the product is at least partially neutralized with an acid and converted into a predominantly aqueous phase.
Claim 24
Dependent Claim
34 words
A process according to claim 13, wherein component B is a compound which contains, in addition to the reactive hydroxyl group, at least one sterically hindered hydroxyl group which is unreactive towards epoxide groups.
Claim 25
Dependent Claim
28 words
The process according to claim 13, 16, 18 or 20 wherein said reaction between components A and B is conducted in the presence of a tertiary amine catalyst.
Claim 26
Dependent Claim
20 words
A molding, adhesive or binder for a coating composition comprised of the synthetic resin of claim 1, 4 or 8.
Claim 27
Dependent Claim
17 words
A molding, adhesive or binder for a coating composition comprised of the synthetic resin of claim 9.
Claim 28
Dependent Claim
17 words
A molding, adhesive or binder for a coating composition comprised of the synthetic resin of claim 10.
Claim 29
Dependent Claim
24 words
An electrocoating bath for use in a cathodic electrocoating process wherein the binder of said bath is comprised of the resin of claim 9.
Claim 30
Dependent Claim
24 words
An electrocoating bath for use in a cathodic electrocoating process wherein the binder of said bath is comprised of the resin of claim 10.
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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) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |