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:
May. 28, 1996
Filed:
Sep. 29, 1994
Bernd Huber, Kelheim, DE;
Gerhard Stein, Kelheim, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, US;
Abstract
Recycling materials comprising cellulosic and synthetic fibers Described is a process for recycling materials comprising fiber mixtures comprising cellulose fibers, comprising the steps of: i) providing fiber mixtures comprising cellulosic fibers and fibers composed of synthetic polymers, and ii) subjecting these mixtures to a microbial hydrolysis in which the cellulosic fibers are completely degraded. The process makes it possible in particular to separate fiber mixtures. For this, the microorganisms and the hydrolyzate are removed in a conventional manner following step ii), and the remaining synthetic polymers are carried off in a conventional manner to be further recycled.