Process for preparing chloromethylated aromatic materials

Details Process for preparing chloromethylated aromatic materials Process for preparing chloromethylated aromatic materials

1988-02-02

1990-02-13

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253322, 5253329, 5253333, C08F 818

Patent

active

049007963

ABSTRACT:
An improved process for chloromethylating an aromatic material comprising introducing in a first closed container the aromatic polymeric material, catalyst for the chloromethylation reaction, and chloromethyl methyl ether in sufficient excess to insure completion of the chloromethylation reaction, and then performing the following series of steps:

REFERENCES:
patent: 4192921 (1980-03-01), Dales
patent: 4207398 (1980-06-01), Riener
patent: 4225677 (1980-09-01), Boutier et al.
patent: 4382124 (1983-05-01), Meitzner et al.
patent: 4393145 (1983-07-01), Zemp
patent: 4582859 (1986-04-01), Lein, Jr. et al.
patent: 4636554 (1987-01-01), Tada et al.

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