Dover Chemical Corporation

Thomas Jennings

Donald R Stevenson

Michael Jakupca

Mark E Harr

Don R Stevenson

W Matthew Fender

Ssatyan Kodali

A novel composition and methods of its use and preparation of polybasic metal carboxylate complexes having the general formula:(A)M.D(OH)HO.(B)Nwherein: A is an organic fatty acid and is selected from the group consisting of saturated Ccarboxylic acids, unsaturated Ccarboxylic acids, aromatic Ccarboxylic acids, alicyclic Ccarboxylic acids, polycarboxylic acid derivatives thereof, anhydride derivatives thereof and blends thereof, preferably stearate; M is a divalent metal cation, preferably calcium; n is a fractional or whole number from about 1 to about 10 inclusive; D is an alkali earth metal, preferably calcium; x is a fractional or whole number from about 0 to about 3 inclusive; N is a divalent metal cation other than calcium, preferably zinc; and m is a fractional or whole number from 0 to about 1.

Polymer dispersible polybasic metal carboxylate complexes

The invention relates to liquid polymer additive compositions comprising blends of phosphite esters selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites with from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.

Phosphite ester additive compositions

The invention relates to a liquid polymer additive composition comprising at least one phosphite ester selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites and blends thereof and approximately from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.

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Shaker Heights, OH, United States of America

Thomas Jennings