Patrick C Weyburne

US Patent:

20070249757, Oct 25, 2007

Filed:

Aug 25, 2005

Appl. No.:

11/659988

Inventors:

James Rabe - Midland MI, US
Sefa Yimaz - Saginaw MI, US
Patrick Weyburne - Midland MI, US

International Classification:

C08K 9/06

US Classification:

523212000

Abstract:

A siloxane composition, comprising from 70 to 99 parts by weight of a solid particulate having a median particle size of from 0.1 to 3000 μm and from 1 to 30 parts by weight of a binder having a median particle size of from 5 to 250 μm, wherein the composition is a powder and the binder comprises a siloxane resin having the formula: (RSiO)(RSiO)(RSiO)(SiO), wherein each Ris independently selected from hydrogen, hydrocarbyl, substituted hydrocarbyl, —O═NRR, —OR, —O—R—OR, and an epoxy-substituted organic group, wherein Ris Cto Chydrocarbyl, Ris Ror —H, Ris hydrocarbylene, w+x+y+z=1, y/(w+x+y+z) is at least 0.67, and the siloxane resin has a softening point of from 30 to 115 C.; an agglomerate, and a method preparing the agglomerate.