Shell Oil Comapny

Werner T Raudenbusch

Petrus Gerardus Kooijmans

Josepha M Seelen-Kruijssen

Petrus G Kooymans

Gerardus C Schreurs

Stephen A Stachowiak

Johannes J Wintraecken

Jurrianus Bekooij

Adrianus M Van Steenis

Adrianus J Barnhoorn

Wolfgang Kunze

Jurrianus Bekooy

Henricus P Scholten

Theodorus N Visser

Willem L Sederel

Theresia F Schets

Disclosed is a process for preparing an epoxy resin containing on average from 1.5 to 2.5 epoxy groups and at least one primary hydroxyl group per molecule, the method comprising reacting, in the presence of an etherification catalyst, tris(2-hydroxyethyl)isocyanurate with a diglycidylether having the general formula ##STR1## wherein R is an alkylene group, a cycloalkylene group, or an alkylene group containing a cyclic moiety.

Modified epoxy resins

This invention relates to a process for the preparation of water-thinnable, curable binders for coatings prepared by reacting a multifunctional polyglycidyl ether (epoxy novolac resin), a diglycidyl ether of a polyhydric phenol and an amino compound.

Preparation of binders for coatings, thermosetting coating compositions

Preparation of epoxy binders for coatings

The preparation of water-thinnable thermosetting resin binder compositions for coatings is described wherein a polyglycidyl ether prepared by reacting a multifunctional polyglycidyl ether with a monofunctional phenol is reacted with a dicarboxylic acid in the presence of an esterification catalyst.

The preparation of water-thinnable thermosetting resin binder compositions for coatings is described wherein a polyglycidyl ether prepared by reacting a multifunctional polyglycidyl ether with a monofunctional phenol is reacted with a dicarboxylic acid in the presence of an etherification catalyst.

The present invention is directed to polyglycidyl ethers having, on average, n epoxy groups per molecule, where 1&lt;n.ltoreq.2, which comprise the reaction products of multifunctional polyglycidyl ethers having, on average, x epoxy groups per molecule, where x&gt;2, with (x-n) mol of monofunctional phenols per mol of the multifunctional polyglycidyl ether and to a process for their preparation and their use in preparing thermosetting coating compositions, particularly for use in electrodeposition coating of articles.

Polyglycidyl ethers, their preparation and their use in preparing

Catalytically self-cross-linking resinous binders are prepared by (a) addition reaction of a primary amine to a beta-hydroxyalkyl ester of an alpha, beta-ethylenically unsaturated acid, and (b) reaction of this secondary amine adduct, optionally in combination with other amines, with an epoxy resin. Curing catalysts are transesterification-promoting metal compounds. Protonized binders can be used in a cathodic electrodeposition bath.

Process for the preparation of self-cross-linking resinous binders and

Carboxyl-containing resinous compounds, suitable for making water-dilutable thermosetting coating compositions after at least partial neutralization with a base, are prepared by a process wherein a non-acidic hydroxyl-containing resinous intermediate prepared by reacting at a temperature in the range 120.degree. to 180.degree. C. in the presence of an esterification catalyst in one or more steps (a) a diglycidyl ether of a dihydric phenol having an epoxy molar mass not exceeding 1100 with (b) a monofunctional phenol, and (c) dimerized unsaturated fatty acids in an epoxy phenolic or acidic equivalent ratio of (a), (b) and (c) from x/2/(x-2) to (x+0.1)/2/(x-2), wherein x is at least 4 for a diglycidyl ether having an epoxy molar mass from 400 to 1100 and x is at least 6 for a diglycidyl ether having an epoxy molar mass below 400, is reacted at a temperature not higher than 150.degree. C. with a carboxylic acid anhydride in an amount to produce a half-ester having an acid value in the range 15 to 80 mg KOH/g. Such resinous compounds when at least partially neutralized with a base and combined with a cross-linking compound are suitable for use in electrodeposition.

Process for the preparation of resinous compounds, compounds produced

Process for the preparation of self-linking resinous binders and their

The present invention is directed to thermosetting binder compositions for coating, comprising:

Thermosetting resinous binder compositions, their preparation and use as

A thermosetting resinous binder composition, heat-curable in combination with a transesterification-promoting metal compound as a catalyst to provide an insoluble infusible coating, comprising a mixture of:

Thermosetting resinous binder compositions and their use as coating

A thermosetting binder composition for coating, comprising:

Growing community of inventors

Amsterdam, Netherlands

Werner T Raudenbusch