Process for the preparation of polyhydroxy methylene ethers and

Details Process for the preparation of polyhydroxy methylene ethers and Process for the preparation of polyhydroxy methylene ethers and

1977-04-19

1978-09-05

Schofer, Joseph L.

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

Synthetic resins

521 30, C08F 1612, C08F 840, C08F 830

Patent

active

041118588

ABSTRACT:
This invention relates to an improvement in the process for the preparation of a polyhydroxy methylene ether in which polyhydroxy methylene is reacted with an alkylating agent in an aqueous alkaline medium, the improvement comprising that the alkylating agent has at least one ionic or ionizable carboxyl group, phospho group, quaternary ammonium group, or substituted amino group. The invention also relates to ion exchangers composed of the polyhydroxy methylene ethers.

REFERENCES:
patent: 2847402 (1958-10-01), Gluesenkamp
patent: 2972606 (1961-02-01), Hartman
patent: 3069391 (1962-12-01), Schaefgen
patent: 3226380 (1965-12-01), Knight
patent: 3432512 (1969-03-01), Halpern
patent: 3741945 (1973-06-01), Bourat
patent: 3761406 (1973-09-01), Taub et al.
patent: 3770666 (1973-11-01), Quenten

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