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, 1987
Filed:
Jul. 08, 1985
Applicant:
Inventor:
David R Warfel, Exton, PA (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
523310 ; 526173 ; 528482 ;
Abstract
Cloudy material in organic diluent solutions of macromonomers, prepared by anionic polymerization with a lithium initiator and termination with a halogen-containing terminating agent is removed by treating the polymer solutions resulting from the polymerization with an adsorbent selected from an alkaline earth metal silicate, an ion exchange resin, and a mixture of the silicate and ion exchange resin composition, separating the solid material from the solutions, and isolating the macromonomer.