Tetraphenol compounds and process for producing the same

Details Tetraphenol compounds and process for producing the same Tetraphenol compounds and process for producing the same

1996-03-08

1998-03-10

Berman, Susan W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522162, 4302701, 534557, C08F 250, G03C 1695, G07C 3915, G07C30953

Patent

active

057262179

ABSTRACT:
A tetraphenol compound represented by the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent hydrogen 1,2-naphthoquinonediazide-4-sulfonyl or 1,2-naphthoquinonediazide-5-sulfonyl and a method for producing the compound are provided, and the compound can be used as a photosensitizer for a positive resist which exhibits superior properties.

REFERENCES:
patent: 5153096 (1992-10-01), Uenishi et al.
patent: 5384228 (1995-01-01), Uetani et al.
patent: 5407779 (1995-04-01), Uetani et al.

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