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:
Jun. 23, 2015
Filed:
Oct. 18, 2011
Shiguo Su, Guangdong, CN;
Yueshan He, Guangdong, CN;
Shiguo Su, Guangdong, CN;
Yueshan He, Guangdong, CN;
Shengyi Technology Co., Ltd., Guangdong, CN;
Abstract
The present invention relates to a benzoxazine intermediate and a preparation method thereof. The structural formula of the benzoxazine intermediate is shown by formula (1), Rin formula represents O, C═O, S, SO, alicyclic hydrocarbon with 3 to 30 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof; Ris alicyclic hydrocarbon with 3 to 20 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof. The benzoxazine intermediate of the present invention contains a naphthalene ring structure segment, has desirable heat resistance performance and flame retarding performance, and can be widely applied in composite materials.