Ciba-geigy Corporation

Ciba Specialty Chemicals Corporation

Basf Se Ludwigshafen

Basf Se Corporation

Ciba Holding Inc.

Samuel Evans

Paul Dubs

Peter Nesvadba

Michael Rasberger

Hans R Meier

Hans-Rudolf Meier

Roger Martin

Gerrit Knobloch

Stephan Allenbach

Roland A Winter

Volker H Von Ahn

Matthew E Gande

Rudolf Pfaendner

Heinz Herbst

Alfred Steinmann

Kurt Hoffmann

Siegfried Rosenberger

Hugo Camenzind

Rolf Schumacher

Marc Ribeaud

Michèle Gerster

Michael Tinkl

David Eliezer Chasan

Pierre Rota-Graziosi

Beat Michael Aebli

Alfred Dratva

Christoph Krohnke

Ralf Schmitt

Raymond R Seltzer

Sai Ping Shum

Joseph E Babiarz

Ivan Orban

Paul Moser

Bernard Gilg

Reto Luisoli

Peter Hofmann

Roswell Easton King

Werner Stegmann

Milos Rusek

Zdenek Mazour

Peter Rohrbach

Sandor Gati

J&uuml;rg Zingg

Christoph Kr&ouml;hnke

Peter H&auml;nggi

Stefan Laeuger

Arpad Major

Christoph Kleiner

Eberhard Gegner

The present invention relates to an aqueous functional fluid comprising an antioxidant of the hindered phenol type and a water-soluble polyalkylene glycol. The aqueous functional fluids are especially suitable for use as hydraulic or metal working fluids. The present invention also relates to the use of the aqueous functional fluid for improving the performance properties of hydraulic or metal working fluids.

Aqueous functional fluids with antioxidants

The invention relates to a composition comprising a mixture of alkylated N-&#x3b1;-naphthyl-Nphenylamine (PANA) and alkylated diphenylamine (DPA), the product obtainable by alkylating PANA or a mixture of PANA and DPA with alkenes and the process for alkylating PANA or a mixture of PANA and DPA with alkenes. The compositions according to the present invention have an outstanding anti-oxidative action, which can be demonstrated by established test methods.

Alkylated PANA and DPA compositions

Polymers grafted with a compound of formula I, wherein the general symbols are as defined within, have outstanding stability against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation.

Sulfoxides or sulfones grafted onto polymers

This invention relates to a process for stabilising and at the same time phase compatibilising plastics or plastic compositions by incorporating polymeric compounds obtainable by reacting a compound selected from the group consisting of the sterically hindered phenols, sterically hindered amines, lactones, sulfides, phosphites, benzotriazoles, benzophenones and 2-(2-hydroxyphenyl)-1,3,5-triazines, which compounds contain at least one reactive group, with a compatibilisator.

Functionalized polymers

Functionalised polymers

The present invention discloses mono-, bis- and tris-nonylcyclohexylphosphite esters, polyolefin compositions stabilized against the deleterious effects of melt processing, heat aging and exposure to combustion products of natural gas which comprise the nonylcyclohexylphosphite esters as stabilizers, and a process towards stabilizing polyolefin compositions by incorporating in or applying thereto the nonylcyclohexylphosphite esters.

Nonylcyclohexylphosphite ester polyolefin stabilizers

Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula I[R&#x2014;S(&#x2550;O)&#x2014;CH&#x2014;CH(OH)&#x2014;CH]&#x2014;N(R)&#x2014;R, &#x2003;&#x2003;(I)in which and, if n is 1 and Ris hydrogen, R may additionally be 

Stabilizers and antiozonants for elastomers

Polymers grafted with a compound of formula I, formula (I) wherein the general symbols are as defined in claim 1, have outstanding stability against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation[R&#x2014;SOR&#x2014;SO&#x2014;R.&#x2003;&#x2003;(I)

Process for the preparation of compounds of formula I wherein the general symbols are as defined in claim 1, which process comprises reacting a compound of formula V wherein the general symbols are as defined in claim 1, with carbon monoxide in the presence of a catalyst.

Process for the preparation of 3-aryl-benzofuranones

Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula (I): &lsqb;R&mdash;S(&boxH;O) &mdash;CH &mdash;CH(OH)&mdash;CH &rsqb; &mdash;N(R ) &mdash;R , in which R is C -C alkyl, hydroxyl-substituted C -C alkyl; phenyl, benzyl, &agr;-methylbenzyl, &agr;,&agr;-dimethylbenzyl, cyclohexyl or &mdash;(CH ) COOR , and, if m is 0, R may additionally be (a); and, if n is 1 and R is hydrogen, R may additionally be R &mdash;R N&mdash;CH &mdash;CH(OH)&mdash;CH &mdash;S(&boxH;O) &mdash;(CH ) &mdash; or R &mdash;R N&mdash;CH &mdash;CH(OH)&mdash;CH &mdash;S(&boxH;O) &mdash;CH &mdash;CH &mdash;(OCH &mdash;CH ) &mdash;, R is hydrogen, cyclohexyl or C -C alkyl, R is (b), R is C -C alkyl, R is hydrogen or &mdash;CH &mdash;CH(OH)&mdash;CH &mdash;S(&boxH;O) &mdash;R, X is C -C alkyl, Y is C -C alkyl, m is 0 or 1, n is 1 or 2, q is 1 or 2, x is from 2 to 6, and y is 1 or 2. The compounds of the formula (I) are also suitable as stabilizes for elastomers to prevent contact discoloration of substrates coming into contact with elastomers.

Stabilizers for emulsion crude rubbers, synthetic latex and natural rubber latex

Liquid polyfunctional additives

Process for the preparation of compounds of formula (I), wherein the general symbols are as defined in claim , which process comprises reacting a compound of formula (V), wherein the general symbols are as defined in claim , with carbon monoxide in the presence of a catalyst.

This invention relates to a novel, technically advantageous process for the preparation of a mixture of alkylated phenothiazines and diphenylamines. Starting from diphenylamine, this is reacted with elemental sulfur in the presence of iodine, and the substance mixture of diphenylamine and phenothiazine is treated with an olefin in the presence of an acid catalyst.

Process for the preparation of a mixture of alkylated phenothiazines and diphenylamines

This invention relates to a process for stabilizing and at the same time phase compatibilising plastics or plastic compositions by incorporating polymeric compounds obtainable by reacting a compound selected from the group consisting of the sterically hindered phenols, sterically hindered amines, lactones, sulfides, phosphites, benzotriazoles, benzophenones and 2-(2-hydroxyphenyl)-1,3,5-triazines, which compounds contain at least one reactive group, with a compatibilisator.

Growing community of inventors

Marly, Switzerland

Samuel Evans