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:
Jan. 13, 1998
Filed:
Apr. 04, 1995
Applicant:
Inventors:
Josef Hilbig, Taunusstein, DE;
Reinhard Doenges, Bad Soden, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G / ; C07H / ; C07H / ;
U.S. Cl.
CPC ...
536124 ; 5361231 ; 536102 ; 536127 ; 536128 ; 536111 ; 536 56 ; 536 84 ; 536 30 ; 536 43 ; 536 45 ; 536 50 ; 536-111 ;
Abstract
Process for the preparation of low molecular weight polysaccharide ethers which can be employed in binders for improving adhesive power and film-forming properties, by oxidative degradation of relatively high molecular weight polysaccharide ethers, which comprises initially introducing a relatively high molecular weight polysaccharide ether in suspension (e.g. in a slurry), adding a perborate or a mixture of perborate and perborate activator, and carrying out the oxidative degradation at a temperature of between 25.degree. and 90.degree. C.