M&t Chemicals, Inc.

Elf Atochem North America, Inc.

Justin L Hirshman

Roger T Guthrie

Edwin L Sukman

Stanley Littman

Philip H Ravenscroft

Robert V Russo

Kenneth Treadwell

Dana S Garcia

Mohammad R Kazemizadeh

The present invention relates to a partial ester derived from the reaction product of an oxirane containing acid or derivative thereof, and a reactive hydroxyl compound selected from the group consisting of diols, triols, di-diols and 1,4-dihydroxy butane and a halogen containing polymer compositon thereof. The oxirane compound can be derived from the group consisting of epoxidized vegetable oil, epoxidized fish oil, an aliphatic or arylaliphatic containing craboxyl compound having an oxirane group in the aliphatic chain.

Partial esters of epoxy containing compounds

Diorganotin compounds wherein at least one of the remaining valences on the tin atom is satisfied by a sulfur atom or a thiocyanate group are unique among diorganotin compounds in that they retain their catalytic activity over extended periods of time in the presence of the precursors or masterbatches conventionally employed to prepare rigid, cellular polyurethanes.

Storage-stable precursors for rigid polyurethane foams

Epoxide compounds are cured rapidly at relatively low temperatures by reaction products of a carboxylic acid anhydride and an organothiostannoic acid anhydride or mixtures containing these two compounds. The cured products exhibit good physical and electrical properties.

Novel curing agents derived from organothiostannoic acids

Additives can be permanently incorporated into melt spun fibers by cold drawing the fibers under conditions that generate a network of interconnecting microvoids within the fiber. The microvoids are formed in the presence of specified liquid or vapor media which fill the microvoid network. The temperature of the medium is below the effective glass transition temperature of the fibers containing said medium. The additive is either present in said medium or is applied to drawn fibers containing said medium.

Additive-containing fibers

Additives can be permanently incorporated into melt spun fibers by cold drawing the fibers under conditions that generate a network of interconnecting microvoids within the fiber. The microvoids are formed concurrently with the drawing of the fiber in a non-solvent liquid or vapor media, which media fills the microvoid network. The temperature of the medium is below the effective glass transition temperature of the fibers containing said medium. The additive is either present in said medium or is applied to drawn fibers containing said medium.

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East Brunswick, NJ, United States of America

Justin L Hirshman