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.

Date of Patent:
Feb. 27, 2018

Filed:

Oct. 21, 2015
Applicant:

Cytec Industries Inc., Woodland Park, NJ (US);

Inventors:

Ram B Gupta, Stamford, CT (US);

Martin Cohen, White Plains, NY (US);

Manav Gupta, Karnataka, IN;

Assignee:

CYTEC INDUSTRIES INC., Woodland Park, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 265/16 (2006.01); C07D 413/10 (2006.01); C07D 413/14 (2006.01); C07C 315/04 (2006.01);
U.S. Cl.
CPC ...
C07D 265/16 (2013.01); C07C 315/04 (2013.01); C07D 413/10 (2013.01); C07D 413/14 (2013.01);
Abstract

A synthesis process for making a benzoxazine compound containing at least one benzoxazine unit from aromatic amine containing at least one primary amino group, at least one phenolic compound with at least one ortho-hydrogen, and alkyl formcel. In one embodiment, the aromatic amine is reacted with alkyl formcel to generate an alkoxymethyl intermediate compound. Subsequently, the intermediate compound is reacted with a phenol to generate the benzoxazine compound. In another embodiment, the benzoxazine compound is formed by reacting aromatic amine with alkyl formcel and phenol in one reaction step. Also disclosed is a method for isolating the alkoxymethyl compound formed by reacting aromatic amine with alkyl formcel. The isolated alkoxymethyl compound is useful as a reactant in a subsequent reaction.


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