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:
Apr. 04, 1978
Filed:
Aug. 23, 1976
Applicant:
Inventors:
Walid Y Aziz, Warrensville, OH (US);
Lawrence E Ball, Cuyahoga Falls, OH (US);
Irving Rosen, Warrensville Heights, OH (US);
Assignee:
The Standard Oil Company, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260823 ;
Abstract
Light colored, high molecular weight thermoplastic xylene-formaldehyde polymers are prepared by reaction of substantially equimolar amounts of xylene and formaldehyde in the presence of a strong acid catalyst by the exclusion of air from the reactor.