Rhein Chemie Rheinau Gmbh

Cooper Technology Services, LLC

Friatec Aktiengesellschaft

Bayer Aktiengesellschaft

W.c. Heraeus Gmbh

Krohne Messtechnik Gmbh Co. Kg

Woco Gmbh & Co. Kg

Hans-Joachim Graf

Hans-Josef Buysch

Pieter Ooms

Thomas Scholl

David Francis Lupton

Heinrich Schrage

Ludger Heiliger

Harald Kleinknecht

Rene Loix

Volker Sch Afer

Yuding Feng

Hartmut Schulz

Manfred Schweiger

Jorg Schielke

Volker Schafer

Lothar Steger

Kurt Schilling

Zuoxing Yu

Clemens Schudok

Erich Schmidt

Armin Bauer

Helmut Mayer

Arno Reckziegel

Tim Pauli

Guenther Bitz

R Udiger Schubart

Graham Choonoo

Klaus Kn Orr

Brenda Elliott

Arthur Relle

Anton Hartmayer

Hans-Dieter Voss

Hans-Martin Issel

Jonas Ziegler

Joachim Albrecht

DrThomas FRÜH

Giogio MÜLLER

Methods for forming a composite extrusion for use as a vehicle weather strip and the products formed thereby are disclosed in which a main body member is formed from an elastomeric thermoset rubber and an abrasion resistant decorative layer comprised of a crosslinkable thermoplastic is extruded thereon. The crosslinkable thermoplastic may be an ethylene-octene copolymer or a copolymerized ethylene-styrene interpolymer. The thermoplastic contains grafted silane functional groups to allow the thermoplastic to be crosslinked in the presence of moisture. The abrasion resistant decorative layer may be extruded onto the thermoset either prior to or after the thermoset is cured and either prior to or after the abrasion resistant decorative layer is crosslinked. The material of the abrasion resistant decorative layer may be extruded into sheet form and laminated onto the main body member.

Moisture crosslinkable thermoplastics in the manufacture of vehicle weather strips

A polymer blend of an ethylene-&agr;-olefin-diene rubber and a conjugated diene rubber suitable for use as a replacement for unblended EPDM rubber in automotive applications. The rubber blends of the present invention comprise a high molecular weight EPDM rubber, a conjugated diene rubber, and a low molecular weight, high ethylene content EPDM rubber that functions as a compatibilizer. The resultant blend exhibits physical properties, including tensile and tear strength, that are comparable to conventional EPDM rubbers, while maintaining the excellent heat and weather resistance possessed by EPDM rubbers.

Blend of EPDM and SBR using an EPDM of different origin as a compatibilizer

Vulcanized ethylene-propylene-diene (EPDM) rubbers are disclosed that are particularly suited for use in dynamic applications as a replacement for natural rubber parts. The ethylene-propylene-diene rubbers exhibit excellent thermal and oxidative resistance while displaying tensile strength and dynamic fatigue resistance comparable to similar compounds based on natural rubber. The ethylene-propylene-diene rubbers comprise a high molecular weight EPDM, a processing oil, a carbon black, and a cure system containing sulfur, tetramethylthiuram-disulfide and 2-mercaptobenzothiazole.

EPDM compounds for dynamic applications

A process for producing a vulcanized elastomeric rubber composition that minimizes or eliminates the appearance of discoloration on the surface of the rubber, and the products formed from this process are disclosed. The process includes the incorporation of polar functional groups into the elastomeric rubber by grafting the functional groups onto a compound miscible in the rubber. It is believed that the polar functional groups increase the solubility of the compounds responsible for iridescence and blooming observed in vulcanized rubber and decrease their migration to the rubber surface. Additional techniques for reducing or eliminating undesirable discoloration in rubber are disclosed.

Preventing discoloration in an elastomer rubber

A method of manufacturing a ceramic component including at least one cermet body, especially a cermet electrode, in which the costs are reduced and the ceramic component can be produced in accordance with requirements with an integrated cermet body in a reproducible manner. The cermet body initially is produced as a green compact; the cermet body then is inserted into the ceramic composition; the ceramic composition subsequently is consolidated together with the green compact cermet body, e.g. by pressing, and the resulting assembly is finally sintered.

Method of manufacturing a ceramic component with a cermet body

A vulcanization accelerator combination based on di-(C.sub.6 -C.sub.12 alkyl)dithiophosphates for vulcanizing non-polar rubbers, comprising the following components: (a) a di-(C.sub.6 -C.sub.12 alkyl)dithiophosphate; (b) one or more compounds selected from the group consisting of sulphenamides, thiazoles and carbamates; (c) sulfur and/or a sulfur donor; and (d) at least one additional accelerator compound having a specific chemical structure that is different from the chemical structure of component (a) and any of the compounds used as component (b) in said accelerator combination.

Accelerator combinations

A method of manufacturing an electrically conductive cermet that includes less than 35% by volume of a precious metal by mixing a powdered refractory ceramic with the powdered metal, molding the mixture into a green, and sintering the green to create a cermet with a dense ceramic phase and a metallic phase in the form of a coherent network. The object is good electric conductivity at a low metal content. The precious metal powder is selected to shrink less and exhibits less sintering tendency as it forms the metallic phase than does the ceramic powder as it forms the ceramic phase.

Method of manufacturing an electrically conductive cermet

Process for the production of polymer-bound rubber chemicals, characterized in that the rubber chemicals and optionally additives are finely dispersed in a low molecular weight polymerizable liquid, polymerization is then initiated, optionally after adding a further component which reacts with the polymerizable liquid to form a polymer, and the solid, homogeneous mixture of rubber chemicals and polymer so formed is optionally converted into a form suitable for use.

Process for the production of polymer-bound rubber chemicals

Rubber chemical preparation consisting of or comprising rubber chemicals in finely divided form and a carrier liquid, in which the rubber chemical particles have a mean diameter (weight average d.sub.50) from 2 .mu.m to 20 .mu.m, preferably &lt;10 .mu.m, and exhibit a very narrow diameter distribution corresponding to .delta.d.sub.10 -d.sub.90 .ltoreq.20 .mu.m, preferably &lt;10 .mu.m.

Rubber chemical preparation

Disclosed herein are stabilized dithiophosphoric acid polysulphides of the formula (I) ##STR1## in which R is a C.sub.1 -C.sub.20 alkyl, cycloalkyl, aryl or aralkyl residue and

Stabilised dithiophosphoric acid polysulphides

Poly[2,5-bis(polysulphano)-1,3,4-thiadiazoles] of the formula ##STR1## wherein X signifies a number from 1 to 10 and

Poly [2,5-bis(polysulphano)-1,3,4-thiadiazoles]

Rubber components of a vulcanizable rubber composition are homogenized by adding to the composition, prior to vulcanization, a phenolic resin formed by reacting a bisphenol A residual resin with chlorinated C.sub.4 to C.sub.8 hydrocarbons in the presence of a Friedel-Crafts alkylation catalyst.

Phenolic resins from bisphenol a residual resins and mixtures of

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Mannheim, Germany

Hans-Joachim Graf