ORGANIC POLYMERIC SILOXANE AND ITS APPLICATION

摘要

PROBLEM TO BE SOLVED: To provide a new sulfonic acid group-containing organic polymeric siloxane having a specific value or less of existing ratio of pore size with 20-500Å of the meso porous part, and to solve problems in using the organic polymeric siloxane as a solid acid catalyst that by-products accompanied by reactions accumulate on the meso porous parts and cause deactivation of catalytic activity.

SOLUTION: The new organic polymeric siloxane has hydrocarbon group containing a sulfone group which has the existing ratio being 0-20% of pore volume with 20-500Å diameter of the meso-porous part to pore volume with 9-500Å diameter. The organic polymeric siloxane has a remarkably improved life and can be used in production of various compounds as a stable and economic catalyst on a process, free from channel blockage of reactor.

COPYRIGHT: (C)2004,JPO&NCIPI