A benzophenone compound is represented by the following formula (I):
(A)
n
-X—(B)
m
(I)
wherein
X is an organic moiety having (n+m) valence, (n+m) being an integer ranging from 1 to 4;
A is
B is
R is H or a methyl group;
n is the number of A bonded to X and is an integer ranging from 1 to 4; and
m is the number of B bonded to X and is an integer ranging from 0 to 3.
HIGH PERFORMANCE CURABLE POLYMERS AND PROCESSES FOR THE PREPARATION THEREOF
申请人:Narang Ram S.
公开号:US20080199810A1
公开(公告)日:2008-08-21
Disclosed is a composition which comprises a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer being of the formula
wherein x is an integer of 0 or 1, A is one of several specified groups, such as
B is one of several specified groups, such as
or mixtures thereof, and n is an integer representing the number of repeating monomer units, wherein said photosensitivity-imparting substitutents are allyl ether groups, epoxy groups, or mixtures thereof. Also disclosed is a process for preparing a thermal ink jet printhead containing the aforementioned polymers and processes for preparing the aforementioned polymers.
The present invention relates to flame retardant polymer compositions which comprise melamine phenylphosphonates and mixtures with dihydro-oxa-phosphaphenanthrene derivatives. The compositions are especially useful for the manufacture of flame retardant compounds based on polyfunctional epoxides or polycondensates like polyesters, polyamides and polycarbonates.
The present invention relates to flame retardant polymer compositions which comprise melamine phenylphosphinates and mixtures with dihydro-oxa-phosphaphenanthrene derivatives. The compositions are especially useful for the manufacture of flame retardant compounds based on polyfunctional epoxides or polycondensates like polyesters, polyamides and polycarbonates.
FLAME RETARDANT COMBINATIONS OF HYDROXYALKYL PHOSPHINE OXIDES WITH 1,3,5-TRIAZINES AND EPOXIDES
申请人:Fuchs Sabine
公开号:US20100210763A1
公开(公告)日:2010-08-19
The present invention relates to flame retardant polymer compositions which comprise combinations of hydroxyalkyl phosphine oxides with 1,3,5-triazine compounds and polyfunctional epoxide compounds. The compositions are in the form of epoxy laminates which are useful for the manufacture of prepregs, laminates for the preparation of printed circuit boards and printed wiring boards.