06881812 is referenced by 1 patents and cites 14 patents.

This invention provides a latent catalyst having a structure of phosphonium borate consisting of a monovalent cation portion in which four specific groups are bonded to the phosphorus atom and a monovalent anion portion in which four specific groups are bonded to the boron atom, and a latent catalyst having a structure wherein the above phosphonium borate is the recurring unit and at least two of said recurring unit are connected through at least one of the four specific groups bonded to the boron atom. This invention also provides a thermosetting resin composition comprising such a latent catalyst and an epoxy resin molding material comprising such a latent catalyst and further provides a semiconductor device in which a semiconductor is encapsulated with said epoxy resin molding material.

Title
Thermosetting resin and tetraorganophosphonium dicyclic tetraorganoborane catalyst
Application Number
10/320475
Publication Number
6881812 (B2)
Application Date
December 17, 2002
Publication Date
April 19, 2005
Inventor
Minoru Kobayashi
Kawasaki
JP
Hiroshi Nagata
Yokohama
JP
Yoshiyuki Go
Kawasaki
JP
Hiromi Honda
Utsunomiya
JP
Akiko Okubo
Kawasaki
JP
Sumiya Miyake
Yokohama
JP
Agent
Smith Gambrell & Russell
Assignee
Sumitomo Bakelite Company
JP
IPC
H01L 023/29
C08K 063/04
C08G 059/68
B01J 031/22
B01J 031/20
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