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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 5302749 B1

PDFFull Text
Date of Patent:
Apr. 12, 1994

Filed:

Mar. 17, 1992

Stabilizing method of isocyanate compounds and isocyanate compositions

Applicant:
Inventors:

Teruyuki Nagata, Ohmuta, JP;

Hiroyuki Yamashita, Ohmuta, JP;

Masahiko Kusumoto, Ohmuta, JP;

Koju Okazaki, Ohmuta, JP;

Assignee:

Mitsui Toatsu Chemicals, Incorporated, Tokyo, JP;

Attorney:

Burns, Doane, Swecker & Mathis

Primary Examiner:

Jose' G Dees

Assistant Examiner:

Vera C Clarke

Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560333 ; 524323 ;
Abstract

A method for stabilizing an isocyanate compound by adding 10-5000 ppm of phenol to the isocyanate compound, and also an isocyanate composition so stabilized. In the isocyanate composition stabilized by the above method, coloring due to time-dependent changes and the occurrence of turbidity through self-polymerization are both suppressed so that it shows outstanding storage stability compared with a corresponding isocyanate composition containing a conventional stabilizer.

Find Patent Forward Citations

Nagata, Teruyuki. (1994). Stabilizing method of isocyanate compounds and isocyanate compositions (U.S. Patent No. 5302749). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5302749

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