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. 02, 2006
Filed:
Jul. 21, 2004
Applicants:
Hans-georg Pirkl, Leverkusen, DE;
Ulrich Liman, Langenfeld, DE;
Robert Vieler, Dormagen, DE;
Ralf Echterhoff, Dormagen, DE;
Inventors:
Hans-Georg Pirkl, Leverkusen, DE;
Ulrich Liman, Langenfeld, DE;
Robert Vieler, Dormagen, DE;
Ralf Echterhoff, Dormagen, DE;
Assignee:
Bayer Materialscience AG, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/00 (2006.01); C08G 18/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fraction of diisocyanates of the diphenylmethane series containing at least 95 wt. % binuclear methylenediphenyl diisocyanate is obtained by
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Pirkl, Hans-Georg. (2006). Production of mixtures of diisocyanates and polyisocyanates from the diphenylmethane series with high contents of 4,4'-methylenediphenyl diisocyanate and 2,4′-methylenediphenyl diisocyanate (U.S. Patent No. 7038002). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7038002
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile