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:
Dec. 17, 2013
Filed:
Oct. 08, 2002
Fan Huang, Beijing, CN;
Jinliang Qiao, Beijing, CN;
Yiqun Liu, Beijing, CN;
Xiaohong Zhang, Beijing, CN;
Jianming Gao, Beijing, CN;
Zhihai Song, Beijing, CN;
Fan Huang, Beijing, CN;
Jinliang Qiao, Beijing, CN;
Yiqun Liu, Beijing, CN;
Xiaohong Zhang, Beijing, CN;
Jianming Gao, Beijing, CN;
Zhihai Song, Beijing, CN;
China Petroleum and Chemical Corporation, Beijing, CN;
Sinopec Beijing Research Institute of Chemical Industry, Beijing, CN;
Abstract
Toughened thermosetting resins comprising thermosetting resins and rubber particles having an average particle size in the range of 20 to 500nm. The toughened resins are obtained by mixing a fully vulcanized powdery rubber having an average particle size in the range of 20 to 500nm with thermosetting resin prepolymers and then curing them. The toughened thermosetting resins comprise rubber phases having a small, uniform and stable particle size, which results in a very significant toughening effect, especially when crazes rapidly grow (as in a standard Izod impact test). The toughened thermosetting resins are excellent in impact resistance, strength, modulus and heat resistance, and when appropriately toughened, the thermosetting resins can be enhanced in terms of impact strength, glass transition temperature and heat distortion temperature. The toughened thermosetting resins are useful for many application areas and the method for preparing the same can be carried out in a simple and easy manner and is suitable for toughening various thermosetting resins.