The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 1991
Filed:
Sep. 27, 1989
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an unsaturated group-containing polycarboxylic acid resin produced by reacting an epoxidized compound of a condensate of a phenolic compound and an aromatic aldehyde having a phenolic hydroxyl group with (meth)acrylic acid, and further reacting the reaction product with polybasic carboxylic acid or an anhydride thereof; a composition comprising the resin and a cured product of the resin or the composition. The composition according to the present invention is developable with an aqueous alkaline solution and suitable for a solder resist composition which is excellent in heat resistance, solvent resistance, adhesion, electric insulation property and storage stability.