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:
Aug. 07, 2001
Filed:
Jun. 06, 1997
Yasuhiro Endo, Tsukuba, JP;
Toshiaki Hayashi, Tsukuba, JP;
Abstract
An ester compound prepared by esterifying at least one OH group of a polyhydric phenol as a condensation product of a non-substituted or substituted resorcinol and a carbonyl compound with an organic carboxylic acid having 1 to 20 carbon atoms or a derivative thereof, which necessarily contain an organic carboxylic polyacid having 1 to 20 carbon atoms or a derivative thereof. The ester compound can be used as an epoxy resin curing agent affording a cured article having low dielectric constant, low moisture absorption and sufficient heat resistance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile