Non-sag agent and composition and method relating thereto
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United States of America Patent
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Jun 23, 1992
Issued Date -
N/A
app pub date -
Nov 15, 1990
filing date -
Mar 21, 1989
priority date (Note) -
Expired
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Abstract
A non-sag agent useful in providing non-sag properties to many conventional curable, polymeric adhesives and sealants, said agent comprising: a first component comprising crush resistant coated particles wherein the first component particles are less than about 1 and 1/2 microns in size and have a coating of about 0.1% to about 10% by weight of the particle and wherein said coating substantially comprises a first surface modifying agent, a second component comprising crush resistant coated particles wherein the second component particles are about 1 and 1/2 to about 3 microns in size and have a coating of about 0.1% to about 10% by weight of the particle and wherein said coating substantially comprises a second surface modifying agent, said second surface modifying agent being the same or different from said first surface modifying agent, a third component comprising substantially inert crush resistant particles wherein the particle size is about 4 to about 100 microns, said agent comprising about 25-65 weight percent first component, about 5-25 weight percent second component and about 25-65 weight percent third component.
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