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:
Feb. 25, 1992
Filed:
Aug. 12, 1988
Applicant:
Inventors:
Bernhard Jansen, Cologne, DE;
Hanns P Muller, Bergisch-Gladbach, DE;
Roland Richter, Leverkusen, DE;
Wolfram Mayer, Odenthal-Globusch, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ; A61F / ; A61F / ; B32B / ;
U.S. Cl.
CPC ...
602-8 ; 2940209 ; 138141 ; 156 94 ; 156185 ; 156187 ; 156189 ; 242-722 ; 4274073 ; 427412 ; 4274121 ; 428 347 ; 428 361 ; 428 365 ; 428230 ; 428240 ; 428242 ; 428244 ; 428253 ; 428272 ; 428273 ; 428274 ; 428283 ; 428290 ; 4283066 ; 4283084 ; 428913 ; 523105 ; 524188 ;
Abstract
In a construction material comprising a flexible carrier substrate impregnated or coated with a water-hardening resin, the resin contains as an additive polyether polysiloxane polyurethanes of the formula ##STR1## in which R.sup.1 is lower alkyl,