Shell Oil Comapny

Jan Freriks

Petrus Gerardus Kooijmans

Gerrit G Rosenbrand

Marianne Angele Walravens

Antonius A Broekhuis

Ronald Petrus Van Gaalen

Werner T Raudenbush

Gregory John Hitchings

Pieter Groenveld

A tertiary carboxyl functional polyester resin useful for production of powder coatings is produced by reacting at least one aliphatic compound comprising two aliphatic hydroxyl groups and a tertiary carboxyl group with at least one cycloaliphatic carboxylic acid compound comprising two secondary aliphatic carboxyl groups or the anhydride thereof, wherein each hydroxyl group independently is a primary or secondary hydroxyl group, and wherein the number of hydroxy groups exceeds the number of carboxylic acid groups and anhydrides thereof. The reaction continues until essentially all the non-tertiary carboxyl groups initially present in the reaction mixture have been reacted. These polyester resins may be used together with a suitable curing agent for the production of powder coatings, or may be converted into the corresponding glycidylesters, which in combination with a suitable curing agent can be used for the production of powder coatings.

Outdoor durable coating compositions and acid functional polyester

Polymeric amines are provided that have N-substituted 2,5-pyrrolediyl groups incorporated in the backbone wherein the N-substituted 2,5-pyrrolediyl group may be represented by the general formula (I) ##STR1## wherein R independently represents a hydrogen atom or a hydrocarbyl group and wherein B represents the substituent containing at least one primary amino group.

Polymeric amines

Linear, tertiary carboxyl functional polyester resins suitable for the production of coatings having excellent outdoor durable properties, the polyester resins obtainable by reaction of

Acid functional and epoxy functional polyester resins

A process for the preparation of a linear tertiary aliphatic carboxyl functional polyester resin by reacting

Growing community of inventors

Amsterdam, Netherlands

Jan Freriks