Vinyl halide polymerization process, reactor therefor and coatin

Details Vinyl halide polymerization process, reactor therefor and coatin Vinyl halide polymerization process, reactor therefor and coatin

1979-02-12

1981-03-17

Henderson, C. A.

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

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

422131, 427409, 525417, C08F 200, C08F 220

Patent

active

042568633

ABSTRACT:
Build-up during vinyl halide, particularly vinyl chloride, polymerization is prevented by employing a polymerization process using a reactor having an adherent internal coating of a coating product derived from the admixture of at least polyethyleneimine; one or more of hydroquinone, p-benzoquinone, catechol and o-benzoquinone; and at least one o-aldehyde-substituted phenol, particularly salicylaldehyde. The preferred system is prepared from polyethyleneimine, hydroquinone and salicylaldehyde.

REFERENCES:
patent: 3669946 (1972-06-01), Koyanagi
patent: 3778423 (1973-12-01), Reiter
patent: 3849179 (1974-11-01), Morningstar
patent: 4024301 (1977-05-01), Witenhafer
patent: 4024330 (1977-05-01), Morningstar
patent: 4081248 (1978-03-01), Cohen
patent: 4093787 (1978-06-01), Burgess
patent: 4105838 (1978-08-01), Kitamura
patent: 4105839 (1978-08-01), Koyanagi

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