Ciba Specialty Chemicals Corporation

Markus Grob

Bruno Hilti

Ernst Minder

Jurgen Pfeiffer

Primo Carrozza

Manuele Vitali

Nicola Lelli

Piero Piccinelli

Giovanni Da Roit

Andrea Landuzzi

Markus Burkle

Ramanathan Ravichandran

David G Leppard

Andreas Valet

Stephen Mark Andrews

Dirk Simon

Thomas Bolle

Erich Kramer

Alfred Georges Oertli

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 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. 

Compounds of the general formula I' in which R, Rand Rindependently of one another, are H or &#x2014;Y&#x2014;T as defined in claimwhere T is a reactive group selected from OH, acryl- and methacryloxy and arylcarbonate groups, and further symbols are as defined in claimare effective as crosslinking agents for polymeric networks, especially as in flexographic printing plates, coatings, and plastic containers or films. Further provided is a method of protecting the content of a clear or lightly colored plastic container or film against the deleterious effects of ultraviolet radiation, which method comprises permanently and covalently bonding one or more UV absorbing moieties of a durable s-triazine UV absorber via condensation to a suitable polymer component.

2-hydroxyphenyl-s-triazine crosslinkers for polymer networks

Polyolefin mouldings that have excellent stability on permanent contact with chlorinated water comprise, as stabilizer, at least a compound selected from the group consisting of i) an epoxidized fatty acid having 3 to 22 carbon atoms or an aklyl ester thereof having 1 to 18 carbon atoms; and/or ii) an organotin compound; and/or iii) a compound containing at least one radical of the formula A or B.

Stabilization of polyolefins in permanent contact with chlorinated water

The invention relates to a composition that comprises a thermoplastic or elastomeric polymeric substrate (A) and an antistatic mixture (B) in the form of contiguous fibers, which mixture comprises (b1) an organic polymeric material that is fibrous or forms fibers on mixing and is not soluble in the thermoplastic or elastomeric polymeric substrate (A); (b2) a polymer or copolymer capable of ion conduction that has blocks for complexing or solvating a salt of an inorganic or low-molecular-weight organic protonic acid (b3) and has a better compatibility with the organic polymer (b1) that is fibrous or forms fibers on mixing than with the polymeric organic substrate (A); and (b3) a salt of an inorganic or low-molecular-weight organic protonic acid such as NaClO.sub.4 or K P F.sub.6 that has been complexed or solvated in the polymer or copolymer (b2). The invention relates also to the antistatic mixture (B) as such, to its use in rendering polymers antistatic and to a process for the preparation of antistatic thermoplastic or elastomeric polymeric substrates.

Antistatic composition

The invention relates to a composition comprising a thermoplastic, structurally crosslinked elastomeric or thermosetting polymer, which comprises

Antistatically treated polymers

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Riehen, Switzerland

Markus Grob