US4352842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating and curing thermosetting resinous binder compositions using transesterification catalyst
Assignee: Shell USA Inc
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Filing: 1982-02-16
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Granted: 1982-10-05
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Expires: 2002-02-16
Abstract
Abstract A thermosetting binder composition for coating, comprising: (I) (1) A non-acidic resinous saturated compound having a molecular weight of at least 900, and an alcoholic hydroxyl content of at least 0.2 eq./100 g; (2) A non-acidic polyester of a polycarboxylic acid crosslinking agent having more than one β-hydroxyl ester group per molecule, and at least one of components (1) and (2) having an alcoholic hydroxyl functionality of more than 2, and (II) A transesterification-promoting metal salt or complex curing catalyst which is soluble in liquid hydrocarbons. For aqueous compositions, component (I) (1) is preferably a neutralized epoxy resin/amine adduct and component (II) should be insoluble in water; they can be used for cathodic electrodeposition.
Inventors
- 👤 Petrus G. Kooymans
- 👤 Johannes J. M. H. Wintraecken
- 👤 Werner T. Raudenbusch
- 👤 Josepha M. E. Seelen-Kruijssen
- 👤 Gerardus C. M. Schreurs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:23
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4488; C09D5/4496; C08; C08G; C08G59/00; C08G59/14; C09D163/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
A process for preparing an insoluble, infusible coating on a surface which comprises (A) applying a thermosetting binder composition comprising: (I) a mixture or precondensate of: (1) a non-acidic resinous compound essentially free of ethylenically unsaturation, having a molecular weight of at least 900 and a hydroxyl content of at least 0.2 equivalent per 100 g, and (2) a non-acidic polyester having an acid number of not more than 10 of a polycarboxylic acid cross-linking agent having more than one β-hydroxyl ester group per molecule, at least one of components (1) and (2) having a hydroxyl functionality of more than 2, and (II) a transesterification-promoting metal salt or metal complex curing catalyst which is soluble in liquid hydrocarbons and (B) curing said coating at a temperature not higher than 200° C.
Claim 2
Dependent Claim
131 words
A process for preparing an insoluble, infusible coating on a surface which comprises (A) applying a thermosetting binder composition comprising: (I) a mixture or precondensate of: (1) a non-acidic resinous compound essentially free of ethylenically unsaturation, having a molecular weight of at least 900 and a hydroxyl content of at least 0.2 equivalent per 100 g, and (2) a non-acidic polyester having an acid number of not more than 10 of a polycarboxylic acid cross-linking agent having more than one β-hydroxyl ester group per molecule, at least one of components (1) and (2) having a hydroxyl functionality of more than 2, and (II) a transesterification-promoting metal salt or metal complex curing catalyst which is soluble in liquid hydrocarbons and (B) curing said coating at a temperature not higher than 200° C.
Claim 3
Dependent Claim
77 words
The process of claim 1 wherein component (I)(1) is a compound having the formula: A-B--C-B).sub.m A wherein m is a number from 0 to 2, A a dialkylamino group which is linked to B through a tertiary amino function, B is a group ##STR6## wherein n is a number from 0 to 4, R is a hydrocarbon radical of a dihydric phenol, and C is a group which is linked to B through two tertiary amino functions.
Claim 4
Dependent Claim
138 words
The process of claim 1 wherein component (I)(1) is a compound having the formula: [A-B--C-B).sub.m ].sub.p D wherein m is a number from 0 to 2, A a dialkylamino group which is linked to B through a tertiary amino function, B is a group ##STR7## wherein n is a number from 0 to 4, R is a hydrocarbon radical of a dihydric phenol, and C is a group which is linked to B through two tertiary amino functions, p is a number from 3 to 4, and D is a group linked to B through p-tertiary amino functions and being derived from a polyamine and a glycidyl ester of saturated aliphatic monocarboxylic acids containing from 9 to 11 carbon atoms in the acid molecule and wherein the carboxyl group is attached to a tertiary or quaternary carbon atom.
Claim 5
Dependent Claim
13 words
The process of claim 2 or 3 wherein A is a diethanolamino group.
Claim 6
Dependent Claim
26 words
The process of claim 3 wherein component (I)(2) is a non-acidic polyester prepared from a polycarboxylic acid anhydride and at least one glycol, glycol-monoether, or polyol.
Claim 7
Dependent Claim
13 words
The process of claim 5 wherein component (I)(2) is derived from trimellitic anhydride.
Claim 8
Dependent Claim
16 words
The process of claims 5 or 6 wherein the polyester is further reacted with a monoepoxide.
Claim 9
Dependent Claim
18 words
A process of claim 7 wherein the monoepoxide is a glycidyl ester of branched saturated aliphatic monocarboxylic acids.
Claim 10
Dependent Claim
20 words
The process of claim 1 wherein component (II) is a polyvalent metal salt or complex which is insoluble in water.
References Cited (Backward Citations)
US4113682A
Cited
US3682814A
Cited
GB1418372A
Cited
GB1461823A
Cited
US4086292A
Cited
US4104147A
Cited
US4320220A
Cited
US4145370A
Cited
US4115226A
Cited
US4165242A
Cited
US4248753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-04 | 1986-04-05 | 1986-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-04 | 1990-04-05 | 1990-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-04 | 1994-04-05 | 1994-10-05 | $7700.00 | Window Closed / Lapsed |