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. 22, 1995
Filed:
May. 13, 1994
Applicant:
Inventors:
Allan S Hay, Montreal, Quebec H3W 2B3, CA;
Chunping Gao, Montreal, Quebec H2X 2E2, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528193 ; 528423 ; 528194 ; 585350 ; 585360 ;
Abstract
Hydroxy-substituted-bis-phenyl cyclopropanes of formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are selected from H or OH, at least one of R.sub.1 and R.sub.2 being o, m or p-OH, are useful as monomers to provide cross-linkable polymers useful in fiber reinforced plastics, thermosetting molding compounds, elastomers, advanced composites and other applications; the compounds (I) may be produced by the base catalyzed decomposition of a pyrazoline of formula (II): ##STR2## wherein R.sub.1 and R.sub.2 are as defined hereinbefore.