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. 15, 1992
Filed:
Aug. 05, 1988
Applicant:
Inventors:
David F Lewis, Monroe, CT (US);
Robert D Schenfele, Caldwell, NJ (US);
Assignee:
ISP Investments Inc., Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C07K / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435 41 ; 435273 ; 435272 ; 435212 ; 435227 ; 435 19 ; 435 20 ; 435495 ;
Abstract
This invention relates to a process for the recovery of a substantially insoluble, radiation imageable polyacetylene dispersion in aqueous binder which comprises contacting the dispersion with a proteolylic enzyme in an amount sufficient to decompose the binder, at a pH of from about 3 to about 9 and a temperature of between about 20.degree. C. and about 70.degree. C. and separating polyacetylene solids from the resulting liquid mixture, and which solids can be solubilized and recrystallized for further use.