Ciba Specialty Chemicals Corporation

Basf Se Ludwigshafen

Ciba Holding Inc.

Jürgen Wiethan

Andrea Preuss

Michèle Gerster

Michael Tinkl

Stewart Todd Elder

Paragkumar Thanki

Fabien Jean Brand

Suhas Dattatraya Sahasrabudhe

Kishor Prabhakar Kumbhar

Archana Kishore Desai

Shrirang Bhikaji Hindalekar

Fadi Khawam

Paragkumar Nathalal Thanki

Shrirang Bhikaji A-604 Windsor Co-Op Hsg Society Hindalekar

The instant invention relates to oligo- and poly-carbonates terminated with silicon containing groups which are useful as reducers of surface energy for organic materials such as polycarbonates, polyesters or polyketones or their mixtures, blends or alloys. Polymers with such reduced surface energy possess self-cleaning, anti-soiling, anti-graffiti, oil resistance, solvent resistance, chemical resistance, self-lubricating, scratch resistance, low moisture absorption, dirt pickup resistance, slip properties and a hydrophobic surface; and display anti-adhesion properties against proteins and against microorganisms such as for example, bacteria, fungi and algae.

Oligo- and poly-carbonates terminated with silicon containing groups as surface modifiers

Carboxylic acid ester derivatives of zosteric acid are effective in preventing biofouling and are readily formulated into coatings or films. Coating or film compositions of the esters, and methods for their application, are provided which reduce the dissolution of the esters into water or loss to the environment. The Zosteric acid esters of the invention appear to function by preventing adhesion of an organism to a surface rather than by acute toxic activity rendering said compositions more environmentally acceptable.

Carboxylic acid esters of zosteric acid for prevention of biofouling

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Emmendingen, Germany

Jürgen Wiethan