Hoechst Celanese Corporation

Other

Vincent J Sullivan

Paul N Chen, Sr

Frank Osan

Andrew B Auerbach

Wilfried Hatke

Thomas Weller

M Ishaq Haider

Thomas J Dolce

Harry S Pulaski

Otto Herrmann-Sch&ouml;nherr

Mike Jaffe

Polymer alloy comprising a) one or more cycloolefin copolymers and b) one or more types of core/shell particles.

Blends of cycloolefin and core/shell polymers

A resin composition which comprises: (A) from about 99.5 to about 70 percent by weight, based on the total weight of components (A) and (B), of a poly(arylene sulfide) having a melt viscosity of from about 300 to about 8,000 poise at 1,200 sec.sup.-1 and 310.degree. C.; (B) from about 0.5 to about 30 percent by weight, based on the total weight of components (A) and (B), of a substantially non-functionalized, emulsion cured silicone rubber which is the condensation product of (i) an organopolysiloxane having at least two active hydrogen functional groups per molecule, and (ii) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, said silicone rubber being melt dispersable with the poly(arylene sulfide); and (C) from about 0.1 to about 2.0 parts by weight, based on 100 parts by weight of components (A), (B) and (C) combined, of an aminosilane, wherein said composition has been prepared by combining components B and C with component A in the absence of a dispersion medium.

Ductile poly(arylene sulfide) resin compositions

A moldable thermoset composition comprising about 5-60% liquid crystal polymer and about 95-40% of an epoxy-functional rubber by weight, a process for making and a process for using same. The composition is made by melt mixing the LCP and the epoxy-rubber to form a blend. This blend is then cooled and may be molded, extruded, or otherwise formed into a desired shape. The composition is then heat-treated to make it set.

Thermoset LCP blends

A process for making a compatible LCP blend by reactively esterifying an LCP having a carboxylic acid or ester end group with either PPO or PPS, or derivatives thereof, using a catalytic mixture containing boric acid and polyphosphoric acid or sulfuric acid. The carboxylic functionality on the LCP reacts with the hydroxyl end group on the PPO or the thiol end group on the PPS to form an ester or thioester linkage. The two polymers to be blended are melt mixed with the catalyst mixture and extruded.

Compatible LCP blends via direct esterification

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Madison, NJ, United States of America

Vincent J Sullivan