Method for making bisphenol catalysts

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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521 32, 5253335, C08F 834

Patent

active

044554095

ABSTRACT:
A method is provided for making sulfonated aromatic organic polymers having aminoorganomercaptan groups attached to backbone sulfonyl radicals by covalent nitrogen-sulfur linkages. These sulfonated aromatic organic polymers can be used as an ion-exchange resin for making bisphenols.

REFERENCES:
patent: 4294995 (1981-10-01), Faler et al.
patent: 4346247 (1982-08-01), Faler
Brewster, R. Q., Organic Chemistry, Prentice Hall (N.J.), 1948, pp. 300, 301.

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