Patent US1886281A successfully refreshed from Google Patents.
Patent US4530945A successfully refreshed from Google Patents.
US4530945A
Expired / Lapsed
US
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Pigment grinding vehicle
Assignee: PPG Industries Ohio Inc
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Filing: 1984-08-15
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Granted: 1985-07-23
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Expires: 2004-08-15
Abstract
Abstract A quaternary ammonium group-containing material and its method of preparation are disclosed. The quaternary ammonium group contains at least one organic group which contains an acyclic group of at least 8 carbon atoms and also contains a group of the structure ##STR1## wherein R 1 is hydrogen or lower alkyl. The quaternary ammonium group-containing materials are useful as pigment grinding vehicles and in the formulation of pigment paste, particularly pigment paste with high pigment loadings. When formulated in cationic electrodepositable compositions, the pigment grinding vehicles provide for cured electrodeposited coatings of excellent corrosion resistance, particularly over untreated and oily steel.
Inventors
- 👤 Roger M. Christenson
- 👤 Roger L. Scriven
- 👤 Robert D. Jerabek
- 👤 Jeffrey G. Koren
- 👤 Mark W. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:37
CPC Classifications
C; C09; C09D; C09D17/00; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/54
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A quaternary ammonium group-containing material which is obtained by reacting: (i) a 1,2-epoxy-containing material which is a polyepoxide or a monoglycidyl ether or ester, with (ii) an amine containing an organic group which contains an acyclic moiety of at least 8 carbon atoms, and also containing a group of the structure: ##STR9## where R 1 is hydrogen or lower alkyl containing 1 to 4 carbon atoms, under conditions sufficient to form the quaternary ammonium group.
Claim 2
Dependent Claim
75 words
A quaternary ammonium group-containing material which is obtained by reacting: (i) a 1,2-epoxy-containing material which is a polyepoxide or a monoglycidyl ether or ester, with (ii) an amine containing an organic group which contains an acyclic moiety of at least 8 carbon atoms, and also containing a group of the structure: ##STR9## where R 1 is hydrogen or lower alkyl containing 1 to 4 carbon atoms, under conditions sufficient to form the quaternary ammonium group.
Claim 3
Dependent Claim
24 words
The quaternary ammonium group-containing material of claim 1, in which the 1,2-epoxy-containing material to amine equivalent ratio is greater than or equal to 1.
Claim 4
Dependent Claim
20 words
The quaternary ammonium group-containing material of claim 1, in which the polyepoxide has a 1,2-epoxy equivalent of 100 to 500.
Claim 5
Dependent Claim
47 words
The quaternary ammonium group-containing material of claim 1, in which the amine is a reaction product of a diamine containing both a tertiary amine and a primary amine and a carboxylic acid containing an organic group which contains an acyclic moiety of at least 8 carbon atoms.
Claim 6
Dependent Claim
46 words
The quaternary ammonium group-containing material of claim 4, in which the amine is the reaction product of a diamine containing both a tertiary amine and a primary amine with an isocyanate containing an organic group which contains an acyclic moiety of at least 8 carbon atoms.
Claim 7
Dependent Claim
38 words
The quaternary ammonium group-containing material of claim 4, in which the amine is the reaction product of a tertiary alkanolamine and an isocyanate containing an organic group which contains an acyclic moiety of at least 8 carbon atoms.
Claim 8
Dependent Claim
38 words
The quaternary ammonium group-containing material of claim 1, in which the amine is a reaction product of dimethylaminopropylamine and a dimerized fatty acid containing an organic group which contains an acyclic moiety of at least 8 carbon atoms.
Claim 9
Dependent Claim
16 words
The quaternary ammonium group-containing material of claim 7, in which the acid is dimerized linoleic acid.
Claim 10
Dependent Claim
62 words
A pigment paste comprising: (a) a quaternary ammonium group-containing material, characterized in that at least one organic group of the quaternary ammonium group contains an acyclic moiety of at least 8 carbon atoms and also contains a group of the structure: ##STR10## where R 1 is hydrogen or lower alkyl containing 1 to 4 carbon atoms, and (b) a pigment dispersed therein.
Claim 11
Dependent Claim
62 words
A pigment paste comprising: (a) a quaternary ammonium group-containing material, characterized in that at least one organic group of the quaternary ammonium group contains an acyclic moiety of at least 8 carbon atoms and also contains a group of the structure: ##STR10## where R 1 is hydrogen or lower alkyl containing 1 to 4 carbon atoms, and (b) a pigment dispersed therein.
Claim 12
Dependent Claim
24 words
The pigment paste of claim 9, in which the acyclic moiety of the quaternary ammonium group-containing material contains from 12 to 30 carbon atoms.
Claim 13
Dependent Claim
21 words
The pigment paste of claim 9, in which the group ##STR11## of the quaternary ammonium group-containing material is an amido group.
Claim 14
Dependent Claim
24 words
The pigment paste of claim 9, in which the group ##STR12## of the quaternary ammonium group-containing material is a urea or a urethane group.
Claim 15
Dependent Claim
22 words
The pigment paste of claims 9, 10, 11, or 12, wherein the weight ratio of (b) to (a) is at least 20:1.
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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) | 1988-07-22 | 1989-01-21 | 1989-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-22 | 1993-01-21 | 1993-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-22 | 1997-01-21 | 1997-07-23 | $7700.00 | Window Closed / Lapsed |