US4715898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonium resins useful as pigment grinding vehicles in cationic electrodeposition
Assignee: PPG Industries Ohio Inc
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Filing: 1986-06-30
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Granted: 1987-12-29
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Expires: 2006-06-30
Abstract
Abstract A cationic resin suitable for use as a pigment grinding vehicle is disclosed. The cationic resin is derived from an epoxy resin and contains ternary sulfonium groups and alkyl phenoxide groups. Pigment pastes derived from this cationic resin can be used in a method of cationic electrodeposition where they provide for films with high build and good appearance.
Inventors
- 👤 Mark W. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:26
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C09; C09D; C09D17/00; C09D5/00; C09D5/44; C09D5/4488; C09D5/4492; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
109 words
A cationic resin suitable for use as a pigment grinding vehicle capable of producing smooth films while maintaining high rupture voltages which is derived from an epoxy resin and which contains ternary sulfonium groups and alkyl phenoxide groups in which the alkyl group contains at least 4 carbon atoms; said cationic resin containing from 0.25 to 1.4 milliequivalents of ternary sulfonium group per gram of resin and containing from 1.9 to 25 percent by weight of alkyl phenoxide groups based on weight of cationic resin; said alkyl phenoxide groups being present in the cationic resin by reaction of the corresponding alkyl phenol with epoxide functionality of the epoxy resin.
Claim 2
Dependent Claim
109 words
A cationic resin suitable for use as a pigment grinding vehicle capable of producing smooth films while maintaining high rupture voltages which is derived from an epoxy resin and which contains ternary sulfonium groups and alkyl phenoxide groups in which the alkyl group contains at least 4 carbon atoms; said cationic resin containing from 0.25 to 1.4 milliequivalents of ternary sulfonium group per gram of resin and containing from 1.9 to 25 percent by weight of alkyl phenoxide groups based on weight of cationic resin; said alkyl phenoxide groups being present in the cationic resin by reaction of the corresponding alkyl phenol with epoxide functionality of the epoxy resin.
Claim 3
Dependent Claim
18 words
The cationic resin of claim 1 in which the epoxy resin is a polyglycidyl ether of a polyphenol.
Claim 4
Dependent Claim
23 words
The cationic resin of claim 2 in which the polyglycidyl ether of a polyphenol has an average molecular weight of 200 to 3000.
Claim 5
Dependent Claim
30 words
The cationic resin of claim 1 in which the ternary sulfonium groups are of the structure ##STR2## wherein R is alkyl or hydroxyalkyl containing from 2 to 12 carbon atoms.
Claim 6
Dependent Claim
23 words
The cationic resin of claim 1 in which the alkyl phenoxide group contains from 8 to 12 carbon atoms in the alkyl group.
Claim 7
Dependent Claim
102 words
A pigment grinding vehicle capable of producing smooth films while maintaining high rupture voltages which is derived from an epoxy resin and which contains ternary sulfonium groups and alkyl phenoxide groups in which the alkyl group contains at least 4 carbon atoms; said pigment grinding vehicle containing from 0.25 to 1.4 milliequivalents of ternary sulfonium group per gram of resin and containing from 1.9 to 25 percent by weight alkyl phenoxide groups based on weight of cationic resin; said alkyl phenoxide groups being present in the cationic resin by reaction of the corresponding alkyl phenol with epoxide functionality of the epoxy resin.
Claim 8
Dependent Claim
102 words
A pigment grinding vehicle capable of producing smooth films while maintaining high rupture voltages which is derived from an epoxy resin and which contains ternary sulfonium groups and alkyl phenoxide groups in which the alkyl group contains at least 4 carbon atoms; said pigment grinding vehicle containing from 0.25 to 1.4 milliequivalents of ternary sulfonium group per gram of resin and containing from 1.9 to 25 percent by weight alkyl phenoxide groups based on weight of cationic resin; said alkyl phenoxide groups being present in the cationic resin by reaction of the corresponding alkyl phenol with epoxide functionality of the epoxy resin.
Claim 9
Dependent Claim
19 words
The pigment grinding vehicle of claim 6 in which the epoxy resin is a polyglycidyl ether of a polyphenol.
Claim 10
Dependent Claim
24 words
The pigment grinding vehicle of claim 7 in which the polyglycidyl ether of the polyphenol has an average molecular weight of 200 to 3000.
Claim 11
Dependent Claim
31 words
The pigment grinding vehicle of claim 7 in which the ternary sulfonium groups are of the structure ##STR3## where R is alkyl or hydroxyalkyl containing from 2 to 12 carbon atoms.
Claim 12
Dependent Claim
23 words
The pigment grinding vehicle of claim 7 in which the alkyl phenoxide contains from 8 to 12 carbon atoms in the alkyl group.
Claim 13
Dependent Claim
16 words
A pigment paste comprising the pigment grinding vehicle of claim 6 and a pigment dispersed therein.
Claim 14
Dependent Claim
24 words
The pigment paste of claim 11 in which the ratio of pigment to pigment grinding vehicle is within the range of 1 to 10:1.
Claim 15
Dependent Claim
18 words
The pigment paste of claim 11 in which the epoxy resin is a polyglycidyl ether of a polyphenol.
Claim 16
Dependent Claim
23 words
The pigment paste of claim 12 in which the polyglycidyl ether of the polyphenol has an average molecular weight of 200 to 3000.
Claim 17
Dependent Claim
30 words
The pigment paste of claim 11 in which the ternary sulfonium groups are of the structure ##STR4## where R is alkyl or hydroxalkyl containing from 2 to 12 carbon atoms.
Claim 18
Dependent Claim
22 words
The pigment paste of claim 11 in which the alkyl phenoxide contains from 8 to 12 carbon atoms in the alkyl group.
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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) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |