General Electric Company

Hooker Chemicals & Plastics Corporation

General Electric Corporation Gmbh

Victor Mark

Charles V Hedges

Phillip S Wilson

Donald B Jaquiss

John B Luce

Charles A Bialous

John A Tyrell

Walter L Hall

Lawrence C Mitchell

Leon R Zengierski

Niles R Rosenquist

John Robert Campbell

Jimmy Lynn Webb

Arnold Factor

Robert J Axelrod

Edgar E Bostick

Joseph B Williams

Charles A Wilson, Ii

Thomas J Hoogeboom

Frederick Frank Holub

Thomas J Hoogebroom

Polyarylates having amide terminal groups are prepared using a terminating amount of ammonia, ammonium compounds, primary amines, secondary amines, hydrogen ammonium salts of secondary amines, or hydrogen ammonium salts of primary amines. These amide terminated polyarylates exhibit improved thermal properties and are useful in the production of films and molded articles.

Polyarylate having amide terminal groups

Novel heat resistant polycarbonates are provided which are the polymerized reaction products of:

Polycarbonates exhibiting improved heat resistance

Thermoplastic, linear, high molecular weight, end-capped aromatic polycarbonate polymers exhibiting improved heat resistance derived from:

Polycarbonate exhibiting improved heat resistance from cycloalkylidene

Linear thermoplastic polycarbonates derived from:

Polycarbonate exhibiting improved heat resistance from halogenated

A process for preparing aryl sulfone sulfonic acids by reacting an aryl sulfone in the molten state with sulfur trioxide under substantially anhydrous conditions.

Process for preparing aryl sulfone sulfonic acids

An improved process for the preparation of aromatic carbonates selected from aliphatic aromatic carbonates and diaromatic carbonates comprising reacting at least one phenolic compound with at least one dialiphatic carbonate or at least one aliphatic aromatic carbonate in the presence of a catalytic amount of a catalyst comprised of (i) at least one Lewis acid, and (ii) at least one protic acid.

Process for the preparation of aromatic carbonates

Polycarbonates exhibiting improved heat resistances comprised of the reaction products of (i) a carbonate precursor and (ii) at least one dihydric phenol represented by the general formula ##STR1## wherein: R and R.sup.1 are independently selected from alkyl radicals;

Polycarbonate exhibiting improved heat resistance from diphenol

Polycarbonates exhibiting improved heat distortion temperatures which are comprised of the polymerized coreaction products of (i) a carbonate precursor, and (ii) at least one particular spiro dihydric phenol.

Polyestercarbonate from spiro dihydric phenol

Processes for the preparation of bisphenols from phenols and substituted vicinal glycols, or unsaturated alcohols or substituted dienes resulting in bisphenols represented by the general formula: ##STR1## wherein: R.sup.1 and R.sup.2 are independently selected from monovalent hydrocarbon and monovalent hydrocarbonoxy radicals of one to four carbon atoms, or from halogen radicals;

Process for the preparation of bisphenols

Novel copolyetherester elastomer molding compositions are prepared from diols, diacids, poly(alkylene ether) glycol and caprolactone or polycaprolactone.

Copolyetheresters from caprolactone

High molecular weight, thermoplastic, randomly branched polycarbonates of an aromatic dihydric phenol, a carbonate precursor, and a chain branching agent comprising at least one compound selected from the formula: ##STR1## where A is selected from alkylene radicals from 1 to 6 carbons, alkylidene radicals from 2 to 6 carbons, cycloalkylene radicals and cycloalkylidene radicals containing from 4 to 6 carbon atoms;

Branched polycarbonate from carboxy containing diphenol

A transalkylation process for the preparation of dihydric phenols comprising reacting, in the presence of an acid or base catalyst, at least one mole of an aromatic monohydroxy compound such as a phenol with at least one mole of an aromatic dihydroxy compound such as a dihydric phenol, thereby forming at least one dihydric phenol which is different than said aromatic dihydroxy compound.

Process for production of dihydric phenols

Thermoplastic polymer exhibiting improved heat resistance comprised of the polymerized reaction products of (i) a carbonate precursor, and (ii) at least one dihydric phenol represented by the general formula ##STR1## wherein: R is independently selected from alkyl radicals;

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Evansville, IN, United States of America

Victor Mark