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:
Mar. 24, 2009
Filed:
Nov. 07, 2005
Kuen-yuan Hwang, Hsinchu Industrial District, TW;
An-bang Duh, Hsinchu Industrial District, TW;
Chih-fu Chen, Hsinchu Industrial District, TW;
Cheng-jung Chiang, Hsinchu Industrial District, TW;
Kuen-Yuan Hwang, Hsinchu Industrial District, TW;
An-Bang Duh, Hsinchu Industrial District, TW;
Chih-Fu Chen, Hsinchu Industrial District, TW;
Cheng-Jung Chiang, Hsinchu Industrial District, TW;
Chang Chun Plastics Co., Ltd., Taipei, TW;
Abstract
The present invention relates to a method for preparing amino phosphate flame retardants. Melamine and phosphoric acid substances are used as a starting material, AND then the starting material reacts in the absence of solvents at a temperature ranging from 40 to 200° C. to obtain powdery amino phosphate compounds used as flame retardants. Since the reaction free of solvents is carried out under a condition of lower temperature, the powdery amino phosphate compounds can be obtained without drying steps. Therefore, not only the contaminations caused by solvent volatilization can be avoided, but also the process of preparing the product is simplified and the cost of the product is reduced.