Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2005-08-09
2005-08-09
Hightower, P. Hampton (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C528S125000, C528S126000, C528S128000, C528S172000, C528S173000, C528S176000, C528S179000, C528S183000, C528S188000, C528S220000, C528S229000, C528S350000, C528S351000, C528S353000, C430S170000, C430S193000, C430S270100, C430S281100, C430S283100, C430S330000, C525S432000, C525S436000, C522S136000, C522S139000, C522S140000, C522S164000
Reexamination Certificate
active
06927274
ABSTRACT:
Polyimide precursors contained in resin compositions of the present invention have a polymer structure unit represented by formula (1) below:wherein chemical structure A2includes an alicyclic compound but not an aromatic compound such as a benzene ring so that they provide excellent light transmission over a wide wavelength range. The polyimide precursors are imidized at 7.5% or more and 36% or less so that they are less soluble in developing solutions and therefore are not dissolved in the developing solutions at unexposed parts. Thus, the resin compositions of the present invention can be used to form a resin film having a precise pattern by exposure and development.
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PCT Notification of Copies of Translation of the International Preliminary Examination Report dated Dec. 8, 2003, 5 pages.
Akamatsu Tadashi
Hasegawa Masatoshi
Ishii Junichi
Nomura Mamiko
Hampton Hightower P.
Osha Liang L.L.P.
Sony Chemicals Corp.
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