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. 30, 1995
Filed:
Oct. 04, 1993
Applicant:
Inventors:
Bernard Boutevin, Montpellier, FR;
Jean-Pierre Parisi, Montpellier, FR;
Richard Legay, Montpellier, FR;
Bachar Hamoui, Montpellier, FR;
Stephane Nowe, Pau, FR;
Philippe Heim, Pau, FR;
Patrice Gaillard, Souchez, FR;
Assignee:
Elf Atochem S.A., Puteaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525379 ; 5253299 ; 528481 ; 528492 ; 528503 ;
Abstract
(Meth)acrylic/glutarimide copolymers, well suited, e.g., for optical applications, having enhanced glass transition temperatures (Tg), are prepared by salifying the acid functions of (meth)acrylic ester/(meth)acrylic acid copolymers, and then imidifying such 'intermediate' salified copolymers into the subject (meth)acrylic/glutarimide polymers.