Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in reactor of specified material – or in reactor...
Patent
1978-10-23
1980-04-29
Dixon, Jr., William R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in reactor of specified material, or in reactor...
422241, 427230, 427236, 428 35, 5263442, 528484, C08F 218, B05D 722, B05D 724
Patent
active
042007127
ABSTRACT:
This invention relates to a polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto a coating composition containing, as a primary ingredient, the reaction product or oligomers of (1) an alkyl or halogen substituted phenol, such as p-chlorophenol and the like, (2) a condensing agent, such as formaldehyde, and the like, and (3) a polyhydric phenol, such as resorcinol, and the like, dissolved in water or an aqueous alkaline solution. When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers, having at least one terminal ##STR1## and mixtures thereof, polymer buildup on the inner surfaces of the reaction vessel is substantially eliminated. Further, multiple charges or batches of polymer can be made in said internally coated reaction vessel without opening the same between charges thus preventing the escape of unreacted monomer(s) to the surrounding atmosphere.
REFERENCES:
patent: 3778423 (1973-12-01), Reiter
patent: 4068059 (1978-01-01), Witenhafer
patent: 4076951 (1978-02-01), Katayama et al.
patent: 4080173 (1978-03-01), Cohen
patent: 4093787 (1978-06-01), Burgess et al.
patent: 4098972 (1978-07-01), Ogawa et al.
patent: 4105840 (1978-08-01), Cohen
Dixon Jr. William R.
The B. F. Goodrich Company
Wymbs Roy P.
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