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:
Jul. 20, 1982
Filed:
Sep. 29, 1980
Applicant:
Inventor:
Reinhart Mayer, Kelheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
106164 ; 106165 ; 264188 ; 536 60 ; 536 61 ;
Abstract
The invention provides a process for improving the solution state (filterability) of viscoses, wherein mashing of the alkali cellulose-xanthate with dilute sodium hydroxide solution or water and/or dissolving of the xanthate by agitation, disintegration or pump circulation etc. is carried out under an overpressure of from about 1 to 30 bar.