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:
Aug. 28, 1990
Filed:
Jul. 13, 1989
Applicant:
Inventors:
Jurgen Reiners, Leverkusen, DE;
Wolfgang Podszun, Cologne, DE;
Jens Winkel, Cologne, DE;
Carlhans Suling, Odenthal, DE;
Gerhard Klein, Monheim, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ; A61K / ; C07C / ;
U.S. Cl.
CPC ...
106 35 ; 4332021 ; 4332121 ; 4332171 ; 4332281 ; 523115 ; 523116 ; 525920 ; 526301 ; 560 26 ; 560115 ; 560158 ;
Abstract
The new (meth)acrylic acid derivatives containing urethane groups can be prepared by reaction of a (meth)acrylic acid ester with diisocyanates and subsequent reaction with polyols. The compounds can be used for dental materials.