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. 13, 1980
Filed:
Apr. 30, 1979
Applicant:
Inventor:
Peter M Castle, Penn Hills, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
20415923 ; 20415915 ; 20415918 ; 20415922 ; 20415924 ; 430908 ; 430918 ; 430285 ;
Abstract
An initiator-free composition is prepared of an ethylenically unsaturated monomer and the inhibitor parabenzoquinone or hydroquinone. The composition is irradiated with light having a wavelength within the absorption spectrum of the inhibitor, other than ultraviolet. The light causes the inhibitor to produce a reactive species which initiates polymerization.