Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1991-02-15
1991-12-10
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528159, 528212, 528 86, C08G 6378
Patent
active
050719432
ABSTRACT:
Secondary products formed in the chlorination of butadiene can be reacted with phenols in the absence of iron catalysts to form novolak-like phenolic resins in such a way that the tetrachlorobutane present in the secondary products does not react. It can be distilled off with the excess phenol and isolated in pure form from the distillate obtained.
REFERENCES:
patent: 3644537 (1972-02-01), Dannels et al.
patent: 3752780 (1973-08-01), Petersen et al.
patent: 4707526 (1987-11-01), Sasaki et al.
Abele Manfred
Buysch Hans-Josef
Happ Michael
Obrecht Werner
Schrage Heinrich
Bayer Aktiengesellschaft
Cooney John
Kight III John
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