Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant
Reexamination Certificate
2006-03-28
2006-03-28
Hightower, P. Hampton (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From ketone or ketene reactant
C528S220000, C528S310000, C560S049000, C560S050000, C560S055000, C560S104000
Reexamination Certificate
active
07019104
ABSTRACT:
An object of present invention is to provide a diamine and an acid dianhydride having photoreactivity and thermoreactivity and a polyimide composition containing the diamine and the acid dianhydride as monomer components, and specifically to synthesize a diamine and an acid dianhydride having a photoreactive and thermoreactive group containing a double bond or triple bond such as cinnamic acid, chalcone, benzalacetophenone, stilbene, coumarin, pyrone, allyl, propargyl, and acetylene or a derivative skeleton thereof so as to exhibit photoreactivity and thermoreactivity specific to the reactive group, thereby providing a polyimide composition containing the diamine and the acid dianhydride.
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International Search Report Corresponding to International Application No. PCT/JP00/07714 From Japanese Patent Office Dated Feb. 6, 2001, 2 Pages.
Hara Shoji
Nojiri Hitoshi
Okada Koji
Brinks Hofer Gilson & Lione
Hampton Hightower P.
Kaneka Corporation
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