Alternating and block copolymer resins

Details Alternating and block copolymer resins Alternating and block copolymer resins

1991-02-27

1992-07-14

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528212, 528219, 525480, 525491, 525501, C08G 6538

Patent

active

051304104

ABSTRACT:
This invention relates to alternating and block copolymer resins and methods for preparing the same. The alternating copolymer resins are formed from the reaction of a preformed bishydroxymethyl phenol and a reactive phenolic compound. The alternating copolymer may then be further reacted with a second reactive compound in the presence of an aldehyde to form the substantially block copolymer. The alternating and block copolymer resins are characterized by enhanced ortho-, ortho-coupling and low molecular weight distribution.

REFERENCES:
patent: 2437710 (1948-03-01), Rhodes
patent: 4013605 (1977-03-01), Hultzsch et al.
patent: 4377631 (1983-03-01), Toukhy et al.
patent: 4529682 (1985-07-01), Toukhy
patent: 4587196 (1986-05-01), Toukhy
patent: 4614826 (1986-09-01), Katayama et al.
patent: 4690882 (1987-09-01), Tanigaki et al.
patent: 4837121 (1989-06-01), Blakeney et al.
Hiemejz, P.C., Polymer Chemistry, M. Dekker, Inc., N.Y., 1984, p. 38, QD 381. H5 1984. Copy in Biotech Lib.

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