ORGANIC-INORGANIC HYBRID PREPOLYMER, ORGANIC-INORGANIC HYBRID POLYMER OBTAINED FROM SAME, SEALING MATERIAL FOR LED ELEMENTS AND SEALING STRUCTURE FOR LED ELEMENTS

摘要

An organic-inorganic hybrid prepolymer produced by condensation reaction between (A) and one or more compounds (B) selected from (B-1), (B-2), and (B-3):;(A): a polydimethylsiloxane having silanol groups at both ends, a number average molecular weight (Mn) of 10,000 or more and 100,000 or less, and a distribution index of molecular weight (Mw/Mn; Mw is weight average molecular weight) of 1.3 or less;;(B-1): an oligomer of tetraalkoxysilane;;(B-2): a complete or partial hydrolysate of the alkoxy groups of (B-1); and;(B-3): a condensation reaction product of (B-2) and (B-2), or (B-2) and (B-1).

主权项

1. An organic-inorganic hybrid prepolymer produced by condensation reaction between the following (A) and one or more compounds (B) selected from the group consisting of the following (B-1), (B-2), and (B-3):
(A): a polydimethylsiloxane having silanol groups at both ends, a number average molecular weight (Mn) of 10,000 or more and 100,000 or less, and a distribution index of molecular weight (Mw/Mn; Mw is weight average molecular weight) of 1.3 or less; (B-1): an oligomer of tetraalkoxysilane; (B-2): a complete or partial hydrolysate of the alkoxy groups of (B-1); and (B-3): a condensation reaction product of (B-2) and (B-2), or (B-2) and (B-1).