Ciba Specialty Chemicals Corporation

Ciba-geigy Corporation

Zambon S.p.a.

Piero Piccinelli

Nicola Lelli

Valerio Borzatta

James Peter Galbo

Jean-Pierre Wolf

Michael Ackerman

Ivan Orban

Giovanni Da Roit

Manuele Vitali

Primo Carrozza

Markus Grob

Andrea Landuzzi

Claudio Giordano

Alessandro Zedda

Martin Holer

Mariano Meneghin

Stefano Gardi

Manuel Vitali

The invention relates to novel compounds of the formula I, II; III or IV wherein the general symbols are as defined in claim. These compounds are useful as surface modifiers for polymers in order to improve resistance to fog formation or water and oil repellency.

Permanent surface modifiers

The instant invention discloses a composition comprising a carrier, preferably a packaging material, and at least one compound of the formula (I) in which the general symbols are as defined in claimas corrosion inhibor for protecting metallic surfaces. 

Alkylaminosiloxanes as corrosion inhibitors

The invention relates to novel compounds of the formula I, II; III or IV wherein the general symbols are as defined in claim 1. These compounds are useful as surface modifiers for polymers in order to improve resistance to fog formation or water and oil repellency. 

The invention relates to metathesis oligomers wherein one or more alkoxy ether groups are attached to the oligomer moiety. Also disclosed is a polymerizable composition comprising a catalytically effective amount of a penta- or hexavalent ruthenium or osmium carbene catalyst, the process for preparing the metathesis polymer by applying the reaction conditions of Ring Opening Metathesis Polymerization (=ROMP) to the polymerisable composition; and various technical applications of the metathesis oligomers as antifog agents.

ROMP with alkoxy ether groups

Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materials

A product obtainable by transferring groups of formula (G-I) being present in a block oligomer having a polydispersity {overscore (M)}w/{overscore (M)}n of 1 to 1.7 and corresponding to formula (I) to groups of formula (Gu-II), wherein R is a hydrocarbyl radical or &mdash;O&mdash;R is oxyl; said transfer is carried out by reaction of the block oligomer with a hydroperoxide in a hydrocarbon solvent in the presence of a peroxide decomposing catalyst; n is a number from 2 to 14; R is for example C -C alkylene; A is for example &mdash;N(R )(R ); R and R are for example C -C alkyl; R is preferably a group of formula (G-I) and B and B* have one of the meanings given for A; with the proviso that in the individual recurrent units of formula (I), each of the radicals B, R and R has the same or a different meaning. The products are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.

Compounds of formula (I), in which the polydispersity Mw/Mn is for example 1; n is 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 or 14 the radicals R,are for example C,-C,alkyl or C,-C,cycloalkyl; R,is for example C,alkylene; the radicals A and B* are independently of one another &mdash;OR,, &mdash;N(R,)(R,) or a group of formula (II); R,, R,and R,, which are identical or different, are for example hydrogen or C,-C,alkyl, or &mdash;N(R,)(R,) is additionally a group of formula (III) with Y being &mdash;0&mdash;, &mdash;CH,&mdash;, &mdash;CH,, &mdash;CH,&mdash; or >N&mdash;CH,; X is &mdash;0&mdash; or >N&mdash;R,; R,is for example hydrogen or C,alkyl; R is preferably a group of formula (IV); and B has one of the meanings given for A; with the proviso that in the individual recurrent units of formula (I), each of the radicals B, R, R,and R,has the same or a different meaning. The indicated compounds are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.

Process for the methylation of compounds at least one group of the formula (I) ##STR1## by means of a mixture of formaldehyde and formic acid in a reaction medium consisting of an aromatic hydrocarbon solvent.

Process for the methylation of triazine compounds containing

Process for carboxylating 2',4'-difluoro-4-hydroxy-1,1'-diphenyl or a derivative thereof with an alkaline alkylcarbonate at atmospheric pressure to afford 2',4'-difluoro-4-hydroxy-(1,1'-diphenyl)-3-carboxylic acid.

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Sasso Marconi, Italy

Piero Piccinelli