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. 22, 1980
Filed:
Aug. 31, 1977
Applicant:
Inventors:
Jean-Pierre G Senet, Melun, FR;
Patrice M Le Roy, Ballancourt sur Essone, FR;
Assignee:
Societe Nationale des Poudres et Explosifs, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C08F / ;
U.S. Cl.
CPC ...
260463 ; 526301 ; 528301 ;
Abstract
Novel allyl-acrylic monomers of the formula: ##STR1## wherein R is a C.sub.1-4 alkylene group and R.sub.1 is hydrogen or methyl, are described. The preferred monomer is that in which R is ethylene and R.sub.1 is methyl. When subjected to conventional free radical polymerization, in one stage or two stages, these monomers give transparent polymers having good mechanical properties, particularly hardness.