The Standard Oil Company

Sohio

Ralph E Isley

June T Duke

Dorothy C Prem

The impact resistance of high nitrile thermoplastic resins is greatly improved by including metal carboxylate compounds therein. Examples of metal carboxylate compounds useful herein include calcium stearate, calcium pelargonate, calcium laurate, zinc laurate, zinc stearate, aluminum distearate, aluminum laurate and aluminum pelargonate.

Impact improvement of high nitrile resins

The physical properties of a nitrile barrier resin, particularly the tensile modulus, heat distortion temperature and processability, are improved by including therein a carboxylic acid processing aid and an alkaline filler material.

Nitrile barrier resins containing fillers and processing aids

Physical properties particularly including tensile modulus and heat-distortion temperature of high nitrile copolymer resins are improved by including therein a processing aid, such as tetra chloro phthalic anhydride, and a filler material, such as clay.

Physical property improvement in nitrile resins by use of certain

The inclusion of a small amount of an ester-type plasticizer in the rubber polymerization recipe in the production of rubber-modified high nitrile copolymer resins produces resins having markedly improved impact resistance at both low and high temperatures.

Rubber-modified high nitrile copolymers with improved impact resistance

Readily flowable thermoplastic high nitrile copolymer compositions which contain small amounts of certain polar organic chemicals, such as phthalic anhydride, are described.

Flow improvers for high nitrile copolymers

High nitrile polymer articles having improved impact strength and dimensional stability are prepared by stretching in more than one direction a solvent-free, thermoformed polymer article having less than 0.5 percent water and then heat setting the oriented article while in a restrained position at orientation temperatures for about 5 seconds to 2.5 minutes.

Method for improving impact strength in high nitrile polymers by

Heat-stabilized, readily processable thermoplastic rubber-modified nitrile copolymer resins which have incorporated in them small amounts of a processing aid which is an alkyl ester of an organic dibasic acid.

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Northfield, OH, United States of America

Ralph E Isley