SILOXANE COMPOUND AND PROCESS FOR PRODUCING THE SAME

摘要

A siloxane compound comprises a plurality of siloxane repeating units and at least a portion of the siloxane repeating units are cyclosiloxane repeating units conforming to a specified structure. A process for producing such siloxane compounds is also provided. A process and kit for producing a cross-linked silicone polymer using the described siloxane compounds is also provided. A light emitting diode (LED) comprises an encapsulant, and the encapsulant comprises a cross-linked silicone polymer produced from the described siloxane compounds.

主权项

1. A siloxane compound comprising a plurality of siloxane repeating units, wherein about 10 mol. % or more of the siloxane repeating units are cyclotrisiloxane repeating units, and the cyclotrisiloxane repeating units are independently selected from the group consisting of cyclotrisiloxane repeating units conforming to the structure of Formula (I) below:wherein R1 and R2 are independently selected from the group consisting of alkyl groups, substituted alkyl groups, cycloalkyl groups, substituted cycloalkyl groups, alkenyl groups, substituted alkenyl groups, cycloalkenyl groups, substituted cycloalkenyl groups, heterocyclyl groups, substituted heterocyclyl groups, aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, trialkylsiloxy groups, aryldialkylsiloxy groups, alkyldiarylsiloxy groups, and triarylsiloxy groups; R3 and R4 are independently selected from the group consisting of alkyl groups, substituted alkyl groups, alkanediyl groups, substituted alkanediyl groups, cycloalkyl groups, substituted cycloalkyl groups, alkenyl groups, substituted alkenyl groups, alkenediyl groups, substituted alkenediyl groups, cycloalkenyl groups, substituted cycloalkenyl groups, heterocyclyl groups, substituted heterocyclyl groups, aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, trialkylsiloxy groups, aryldialkylsiloxy groups, alkyldiarylsiloxy groups, and triarylsiloxy groups; provided, if one of R3 and R4 is selected from the group consisting of alkanediyl groups, substituted alkanediyl groups, alkenediyl groups, and substituted alkenediyl groups, then the other of R3 and R4 is also selected from the group consisting of alkanediyl groups, substituted alkanediyl groups, alkenediyl groups, and substituted alkenediyl groups, and R3 and R4 are bonded to form a cyclic moiety.