Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1994-12-09
1996-01-30
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528196, 528198, C08G 6400
Patent
active
054880947
ABSTRACT:
A process for preparing substantially chloride-ion-free, high-molecular-weight, colorless and transparent polycarbonate by melt-polycondensing a dihydric phenol with a carbonic diester, which is substantially free from methyl phenyl carbonate or tin ion.
REFERENCES:
patent: 4948871 (1990-08-01), Fukuoka et al.
Database WPI, Week 9217, Derwent Publications, Ltd., London, GB; An 92-136812 & JP-A-4 077 549 (Daicel Chemical Ind. KK), 11 Mar. 1992, abstract.
Fududa Yutaka
Kanno Tatsuya
Daicel Chemical Industries Ltd.
Mosley Terressa
Seidleck James J.
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