Patent ID: 6881812
Filing Date: 2005-04-19
Classification: B01J,C08G,C08L,H01L,Y10T

Abstract:
1. A new thermosetting resin composition comprising 100 parts by weight of a thermosetting resin and 0.4 to 20 parts by weight of a latent catalyst composed of a phosphonium borate represented by the general formula (2): wherein R 5 , R 6 , R 7 and R 8 may be the same as or different from one another and each is a monovalent, organic group having an aromatic ring or a heterocyclic ring or a monovalent, aliphatic group and is bonded to the phosphorous atom to form P—C bond; Z 1 is an organic group bonding to Y 1 and Y 2 ; Z 2 is an organic group bonding to Y Y 3 and Y 4 ; each of Y 1 and Y 2 is a group formed when a monovalent, proton-donating substituent has liberated a proton and the substituents Y 1 and Y 2 in the same molecule are bonded to the boron atom to form a chelate structure; each of Y 3 and Y 4 is a group formed when a monovalent, proton-donating substituent has liberated a proton and the substituents Y 3 and Y 4 are bonded to the boron atom to form a chelate structure; Z 1 and Z 2 may be the same as or different from each other and also Y 1 , Y 2 , Y 3 and Y 4 may be the same or different from one another; HY 1 Z 1 Y 2 H and HY 3 Z 2 Y 4 H which are the proton donors before the ligands Y 1 Z 1 Y 2 and Y 3 Z 2 Y 4 of boron are formed by liberation of the respective protons satisfying the condition that when 1 g of each of the proton donors is mixed with 50 g of purified water and the resulting mixture is subjected to pressure cooker treatment at 125° C. for 20 hours in a pressure cooker vessel, the electric conductivity of the extraction water thus obtained becomes not more than 1,000 μs/cm.