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:
Jun. 25, 2002
Filed:
Sep. 26, 2000
Masato Kaneda, Oita, JP;
Yoshihiro Honda, Oita, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A process of producing a 1,1-cyclohexanedimethanol compound having a substituent group at the 2-position in which the step of producing a 1-hydroxymethyl-3-cyclohexene-1-carbaldehyde compound by Diels-Alder reaction of a &bgr;-substituted-&agr;,&bgr;-unsaturated aldehyde and a chain conjugated diene compound using an anhydrous tin (IV) halide catalyst is essential and a process of producing productive intermediates therefor. 1,1-Cyclohexanedimethanol compounds having a substituent group at least at the 2-position thereof obtained by the present invention are useful as a raw material for polyesters, unsaturated polyesters, alkyds, polyurethanes, epoxy resins, acrylic resins, etc. and as raw materials for functional organic compounds.