The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1993
Filed:
Jun. 14, 1990
Applicant:
Inventor:
Hans-Peter Baumann, Ettingen, CH;
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C14C / ; C07F / ; C07F / ; C07F / ;
U.S. Cl.
CPC ...
252-857 ; 8560 ; 252-87 ; 556 45 ; 556110 ; 556118 ; 556138 ; 568 28 ; 568 34 ;
Abstract
Ammonium salts of aromatic sulpho group-containing condensation products of at least one sulpho group-containing aromatic compound and at least one dihydroxydiphenylsulphone with formaldehyde or a formaldehyde-yielding compound or of defined starting mono- or oligosulphones which are partially metallized and compositions containing them, optionally together with UV-absorbers, are suitable as assistants in the treatment of various substrates and act in particular as improvers of the light-fastness of synthetic polyamide fibres and their dyeings, as assistants in the dyeing or tanning of leather and in the production of paper and as wood-preserving agents.