US4150006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin/amine adducts for cationic electrodeposition
Assignee: Shell USA Inc
•
Filing: 1978-06-05
•
Granted: 1979-04-17
•
Expires: 1998-06-05
Abstract
Abstract {PG,1 Novel resinous binders useful for coating articles by cathodic electrodeposition are described. These binders contain tertiary amino groups and are derived from glycidyl esters of alpha-branched monocarboxylic acids containing from 6 to 20 carbon atoms in the acid group.
Inventors
- 👤 Werner T. Raudenbusch
- 👤 Gerardus C. M. Schreurs
- 👤 Petrus G. Kooymans
- 👤 Josepha M. E. Seelen-Kruijssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:50
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434; C09D5/4442; C09D5/4446
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
128 words
A resinous binder of the general formula ti A--B--C--B-- m A wherein m is zero or an integer of from 1 to 6, each A is the same or different tertiary amino group, each B is the same or different group of the formula ##STR7## wherein n is zero or an integer of from 1 to 10 and R is a dihydric phenol residue; and each C, which is the same or different, is a group derived from a compound having at least two sites capable of reacting with glycidyl ether groups, and wherein at least one of the groups A, B or C is substituted by at least one group of the general formula ##STR8## wherein R 1 is a C 6 to C 20 alkyl group.
Claim 2
Dependent Claim
128 words
A resinous binder of the general formula ti A--B--C--B-- m A wherein m is zero or an integer of from 1 to 6, each A is the same or different tertiary amino group, each B is the same or different group of the formula ##STR7## wherein n is zero or an integer of from 1 to 10 and R is a dihydric phenol residue; and each C, which is the same or different, is a group derived from a compound having at least two sites capable of reacting with glycidyl ether groups, and wherein at least one of the groups A, B or C is substituted by at least one group of the general formula ##STR8## wherein R 1 is a C 6 to C 20 alkyl group.
Claim 3
Dependent Claim
122 words
A process for preparing the resinous binders of claim 1 which comprises reacting A. the reaction product of a glycidyl ether of the formula ##STR9## wherein n is an integer from 0 to 10, and R is a dihydric phenol residue, with a secondary monoamine, and, optionally, a compound having at least two sites capable of reacting with glycidyl ether groups, in amounts such that the number of epoxy equivalents of the diglycidyl ether is substantially equal to the number of reactive sites of the other reactants, with B. (1) a glycidyl ester of the general formula ##STR10## wherein R is a C 6 to C 20 alkyl group, or (2) a cyclic carboxylic anhydride and a glycidyl ester of B (1).
Claim 4
Dependent Claim
17 words
The process of claim 2 wherein the glycidyl ether is a diglycidyl ether of a polyhydric phenol.
Claim 5
Dependent Claim
14 words
The process of claim 3 wherein the diglycidyl ether is derived from bisphenol A.
Claim 6
Dependent Claim
12 words
The process of claim 2 wherein the secondary monoamine is heterocyclic amine.
Claim 7
Dependent Claim
14 words
The process of claim 2 wherein the secondary monoamine is a dialkylamine or dialkanolamine.
Claim 8
Dependent Claim
10 words
The process of claim 6 wherein the dialkanolamine is diethanolamine.
Claim 9
Dependent Claim
10 words
The process of claim 6 wherein the dialkanolamine is diisopropanolamine.
Claim 10
Dependent Claim
28 words
The process of claim 2 wherein the glycidyl ester is a glycidyl ester of a alpha-branched monocarboxylic acid having 9 to 11 carbon atoms in the acid molecule.
Claim 11
Dependent Claim
13 words
The process of claim 2 wherein the cyclic carboxylic anhydride is trimellitic anhydride.
Claim 12
Dependent Claim
44 words
An aqueous coating composition suitable for cathodic electrodeposition comprises: 1. water, 2. the resinous binder of claim 1, 3. an acid in an amount sufficient to neutralize at least 30% of the amino groups of the resinous binder, and 4. a water-miscible cross-linking agent.
Claim 13
Dependent Claim
12 words
The composition of claim 10 wherein the acid is an organic acid.
Claim 14
Dependent Claim
12 words
The composition of claim 12 wherein the organic acid is lactic acid.
Claim 15
Dependent Claim
12 words
The composition of claim 2 wherein the water-miscible curing agent is hexamethoxymethylmelamine.
References Cited (Backward Citations)
US3839252A
Cited
GB1307585A
Cited
US3962165A
Cited
US3804786A
Cited
GB1461823A
Cited
US4069210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |