Other

W. L. Gore & Associates, Inc.

Wolfgang Burger

Richard Witzko

Rudolf Steffl

Klaus Lunkwitz

Heide-Marie Buchhammer

Reiner Kasemann

Christiane Rudolf

Gudrun Petzold

Ralf Tillmanns

Winfried Gleinser

The present invention relates to an article comprising a polymeric substrate and a coating thereon comprising a complex of an ionic fluoropolyether and a counter-ionic agent, to a process for the production of a coating on a polymeric substrate comprising the steps of a) preparing a mixture of an ionic fluoropolyether or a precursor thereof and a counter-ionic agent of a precursor thereof and b) applying the mixture prepared in step a) onto the substrate, to the use of such articles for the manufacture of a garment, a filter element, a venting element or a protective enclosure, to the use of a coating composition comprising a complex of an ionic fluoropolyether and a counter-ionic agent for coating of a polymeric substrate, and to the use of a coating composition comprising a complex of an ionic fluoropolyether and a counter-ionic agent as an antimicrobial or antifungal coating of a substrate.

Polymer coatings comprising a complex of an ionic fluoropolyether and a counter ionic agent

The invention relates to a coating material comprising condensates of at least one compound (A) of the general formula R MZ (a&equals;0-3; b&equals;1-4; a&plus;b&equals;3, 4), where R is a non-hydrolyzable organic group, and at least one compound (B) of the general formula R&prime;xMZ (x&equals;1-3; y&equals;1-3; x&plus;y&equals;3, 4), where R is a non-hydrolyzable organic group and at least one R&prime; contains a perfluoro polyether structure separated from M by at least two atoms, where M is an element from the periodic table of elements selected from the main groups III-V or from the subgroups II-IV and Z is a hydrolyzable organic group, and where at least one R is not equal to at least one R&prime;.

Coating material containing perfluore poly ether structure

A membrane of microporous, for example stretched, PTFE is filled with particles having a size in the nanometer range. By filling with, for example, TiO,, the abrasion resistance of the membrane can be increased. Low particle size means that the original structure of the PTFE membrane with its knots and fibrils is retained, as is, consequently, the original desired properties of this material. In addition to these properties, filling of the material achieves additional properties, for example increased abrasion resistance.

Microporous polytetrafluoroethylene (PTFE) bodies with filler

Co-continuous blend of a fluoropolymer and a thermoplastic and method

The invention concerns a thin film of a permanent hydrophobic and optionally oleophobic finish for polymer surfaces. The film is formed from at least one layer of a water-soluble polycation and cationic synthetic resin. For further improvement of the oleophobic and permanent hydrophobic properties the film can additionally contain a long-chain surfactant or an alkyl-substituted polyanion.

Permanent hydrophobic and oleophotic modification for polymer surfaces

A permanent hydrophilic modification for fluoropolymer substrates is described in which the substrate is coated with a film of a charged polyelectrolyte complex. The film has cationic and anionic components in which the charges on the components interact to form stable electrolytic bonds.

Permanent hydrophilic modification of fluoropolymers

A new porous polytetrafluoroethylene (PTFE) and a process for the production thereof is provided. Both the PTFE and the process excel by the fact that polytetrafluoroethylene is radiation-chemically degraded, the degraded polytetrafluoroethylene is mixed with a high-molecular emulsion polymerisate of polytetrafluoroethylene and the mixture is extruded, stretched and may additionally be sintered.

Porous polytetrafluoroethylene and a process for the production thereof

Nowadays, pieces of jewelry are not only worn on fingers, arms, and around the neck but also in the navel or on the toes. With this invention, a clip to be attached as a piece of jewelry to the pubic hair has been created for wearing in particular in nudist colonies. The pubic hair clip exhibits a set ornamental stone; between this stone and the retaining clip hidden behind it, the pubic hair can be clasped together.

Growing community of inventors

Burgrain, Germany

Wolfgang Burger