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

1979-02-12

1981-01-27

Briggs, Sr., Wilbert J.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

528150, 528153, 528158, 525509, 525516, C14C 320, C08G 828

Patent

active

042472938

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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