MANUFACTURE OF PHOSPHORUS-CONTAINING DIAMINES AND THEIR DERIVATIVES
申请人:LIN Ching-Hsuan
公开号:US20090182116A1
公开(公告)日:2009-07-16
A series of novel phosphorus-containing compounds having the following formula are disclosed:
wherein
Q, R
5
, Ar
1
, Ar
2
, A, and B are as defined in the specification.
The present invention provides a process for the preparation of the compound of formula (I). The present invention also provides a compound of formula (PA) and a process for preparing the same. The present invention further provides a compound of formula (PI) and a process for preparing the same.
Low-k, flame-retardant, bi-functional benzoxazine and method for making the same
申请人:Su Wen-Chiung
公开号:US08648164B2
公开(公告)日:2014-02-11
Disclosed is a method for making a low-k, flame-retardant, bi-functional benzoxazine. The method includes the steps of dissolving phosphoric diamine with various functional groups, phenolic adamantane and paraformaldehyde in a solvent at 72° C. to 88° C. for 7 to 9 hours, and cooling and introducing the solution in n-hexane to separate the low-k, flame-retardant, phosphoric, bi-functional benzoxazine.