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:
Dec. 14, 1982
Filed:
Jul. 14, 1981
Applicant:
Inventors:
Robert E Hefner, Jr, Lake Jackson, TX (US);
Hans R Friedli, Lake Jackson, TX (US);
Mark J Hazelrigg, Jr, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528287 ; 525438 ; 525445 ; 528298 ; 528299 ; 528304 ;
Abstract
Cohalogenation of unsaturated polyesters containing pendant unsaturation and a dicyclopentadienyl ester of an .alpha.,.beta.-unsaturated carboxylic acid is carried out at room temperature or lower to simultaneously and selectively halogenate the non .alpha.,.beta.-unsaturation. These materials have utility in plastics, such as fire-retardant castings.