US4230552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel pigment grinding vehicle
Assignee: PPG Industries Inc
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Filing: 1979-07-20
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Granted: 1980-10-28
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Expires: 1999-07-20
Abstract
Abstract A polymeric product suitble for use as a pigment grinding vehicle is disclosed. The polymeric product is the reaction product of an organic polyepoxide and an organic amine containing an alkylarylpolyether moiety.
Inventors
- 👤 Karl F. Schimmel
- 👤 Lance C. Sturni
- 👤 Martin J. Robles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:07
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/2815; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/504; C09; C09D; C09D163/00; C09D17/00; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode and an anode in an aqueous electrodepositable composition by passing an electric current between said anode and said cathode, wherein the electrodepositable composition comprises an aqueous dispersion of a polymeric product comprising the acidified reaction product of: (A) a polymeric polyepoxide having a 1,2-epoxy equivalency greater than one, (B) an organic tertiary amine containing an alkylarylpolyether moiety having the following structural formula: ##STR5## where Ar is an aryl radical, R is an alkyl radical containing from 1 to 30 carbon atoms, R' is hydrogen or lower alkyl containing from 1 to 5 carbon atoms and x is equal to 3 to 20.
Claim 2
Independent Claim
121 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode and an anode in an aqueous electrodepositable composition by passing an electric current between said anode and said cathode, wherein the electrodepositable composition comprises an aqueous dispersion of a polymeric product comprising the acidified reaction product of: (A) a polymeric polyepoxide having a 1,2-epoxy equivalency greater than one, (B) an organic tertiary amine containing an alkylarylpolyether moiety having the following structural formula: ##STR5## where Ar is an aryl radical, R is an alkyl radical containing from 1 to 30 carbon atoms, R' is hydrogen or lower alkyl containing from 1 to 5 carbon atoms and x is equal to 3 to 20.
Claim 3
Dependent Claim
20 words
The method of claim 1 in which the alkylarylpolyether moiety is located in the terminal position on the polymer chain.
Claim 4
Dependent Claim
16 words
The method of claim 1 in which the polyepoxide is the polyglycidyl ether of a polyphenol.
Claim 5
Dependent Claim
50 words
The method of claim 1 in which the alkylarylpolyether moiety has the following structural formula: ##STR6## where R is an alkyl group containing from 1 to 30 carbon atoms, R' is hydrogen or lower alkyl containing from 1 to 5 carbon atoms and x is equal to 3 to 20.
Claim 6
Dependent Claim
25 words
The method of claim 1 in which (B) is formed from reacting: (1) an alkylarylpolyether alcohol, (2) an organic diisocyanate, (3) a hydroxyl-containing tertiary amine.
References Cited (Backward Citations)
US3380881A
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US3580887A
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US3922253A
Cited
US3925180A
Cited
US3936405A
Cited
US4069210A
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |