Sulphonated, aromatic reaction products, processes for their man

Details Sulphonated, aromatic reaction products, processes for their man Sulphonated, aromatic reaction products, processes for their man

1977-04-11

1979-04-24

Bleutge, John C.

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

Synthetic resins

From carboxylic acid or derivative thereof

528131, 528132, 528150, 528153, C08G 7520, C08G 7524, C14C 320

Patent

active

041509447

ABSTRACT:
The invention relates to sulphonated, aromatic reaction products as agents for tanning hides and leather. They are obtained by reacting a sulphonation product, which is previously formed from a diphenyl ether, a phenol and a sulphonating agent, with formaldehyde, with a reaction mixture of an aminoplast-forming agent and formaldehyde or with an aminoplast precondensate.

REFERENCES:
patent: 3340215 (1967-09-01), Sellet
patent: 3418277 (1968-12-01), Cohen et al.
patent: 3852374 (1974-12-01), Erdmann et al.
patent: 3973904 (1976-08-01), Endres et al.
patent: 4009996 (1977-03-01), Wurmli

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