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:
Mar. 10, 1981
Filed:
Jul. 02, 1979
Annick G Coqueugniot, Ballancourt, FR;
Robert J Bruggeman, Ballancourt, FR;
Marc D Piteau, Itteville, FR;
Societe Nationale des Poudres et Explosifs, Paris, FR;
Abstract
The invention relates, by way of new products, to poly-(carbonate-urethanes) with acrylic or methacrylic acid terminal groups, of the formula ##STR1## in which X represents either hydrogen or the methyl group, R represents a substituted or unsubstituted alkylene, cycloalkylene or arylene radical, R' represents a lower alkylene radical, Z represents a polycarbonate chain and C, H, N and O respectively represent carbon, hydrogen, nitrogen and oxygen. The unsaturated poly-(carbonate-urethanes) according to the invention are obtained by condensing a diisocyanate with a polycarbonate-diol and a lower hydroxyalkyl acrylate or methacrylate. They constitute a base for photocrosslinkable compositions which resist hydrolysis and possess a good adhesion.