The Standard Oil Company

Curtis E Uebele

Lawrence E Ball

Eddie Wardlow, Jr

James F White

Kenneth C Benton

Ronald James Valus

Muyen M Wu

Raymond J Weinert, Jr

Richard J Jorkasky, Ii

Richard J Jorkasky

Eric T Kool

A high nitrile fiber formed from an acrylonitrile olefinically unsaturated multipolymer which fiber is produced by a waterless, solventless melt spinning process.

Melt spun acrylonitrile olefinically unsaturated fibers and a process to

Olefinically unsaturated carboxylic acid monomers containing at least one activated carbon to carbon olefinic double bond and at least one carboxyl group, such as acrylic acid, are polymerized in an organic media in the presence of free radical forming catalysts and at least one oil soluble ionic surface active agent selected from the group consisting of: (a) anionic surface active agents of the formula:

Polymerization process for carboxyl containing polymers utilizing oil

Hydrogen sulfide and mercaptans are scavenged from materials, especially fluids, by contacting the fluids with maleimides.

Hydrogen sulfide and mercaptan scavenger

A process for polymerizing alpha-olefins in the presence of a Ziegler-type catalyst wherein at least one of dichloroethane, dichloropropane and chlorine gas is added to the process after the polymerization has been initiated. This invention is especially useful when the olefin is propylene and the catalyst is a titanium trichloride complex.

Addition of chlorine compound to Ziegler polymerization process

The process for copolymerization of styrene and acrylonitrile in the presence of a diolefin elastomer in high conversion to polymers having superior impact resistance and other excellent physical properties by the careful control of the percent unrealized total solids during the early stages of the copolymerization is described.

Impact-resistant acrylonitrile copolymer process

Nitrile copolymers and graft copolymers containing a high proportionate amount of olefinic nitrile are stabilized against thermal color degradation by inclusion into the polymer minor amounts of a compound having the formula: ##EQU1## and/or ##EQU2## wherein X may be oxygen; an imide group, --NH--; or an N-substituted imide group, --NR-- wherein R may be an alkyl, or a phenyl alkyl group containing from 1 to 8 carbon atoms; Y may be an oxygen or a methylene group; and Z may be hydrogen or an alkyl group containing from 1 to 8 carbon atoms.

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Bedford, OH, United States of America

Curtis E Uebele