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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.:

US 5468783 B1

PDFFull Text
Date of Patent:
Nov. 21, 1995

Filed:

Mar. 01, 1995

Modified aromatic polyisocyanates and their use for the production of

Applicant:
Inventors:

Herbert Gebauer, Krefeld, DE;

Pramod Gupta, Bedburg, DE;

Christian Konig, Kaarst, DE;

Assignee:

Bayer Aktiengesellschaft, Leverkusen, DE;

Attorneys:

Gil; Joseph C.

Brown; N. Denise

Primary Examiner:

James J Seidleck

Assistant Examiner:

R F Johnson

Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
521159 ; 521 99 ;
Abstract

Polyaromatic polyisocyanates are modified by reaction with 0.1 to 10 weight %, preferably 2 to 7 weight % (based on polyisocyanate) of a polyether alcohol of molecular weight 206 to 948, obtainable by the reaction of alkylene oxides with C.sub.6 -C.sub.30, preferably C.sub.8 -C.sub.20, hydrocarbons containing 1 to 3 active H atoms, and are used for the production of rigid polyurethane foamed materials.

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Gebauer, Herbert. (1995). Modified aromatic polyisocyanates and their use for the production of (U.S. Patent No. 5468783). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5468783

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