Dow Corning Corporation

Dow Corning Europe Sa

Dow Corning Corporatioin

Robert A Drake

Tommy Detemmerman

Isabelle Maton

Jean Willieme

Giuseppina Lavinaro

Jary David Jensen

Igor Chorvath

Lauren Marie Tonge

Jon Vierling Degroot, Jr

Brian J Griffiths

David William Lawson

David R Thomas

Thierry Dessilly

Michael Dipino

David Shawl

Bruno Cuocci

Steve Robson

Fabio Giambelli

Guiseppina Lavinaro

Silicone elastomer base compositions containing a stabilizer are disclosed that provide cured silicone elastomers having improved high temperature performance. The stabilizer comprises carbon black, calcium carbonate, iron oxide, and optionally zinc oxide.

Silicone elastomers for high temperature performance

A method of preparing a diluted chain extended organopolysiloxane containing polymer comprising the steps of reacting a pre-formed polymer with a suitable chain extender reactable with terminal groups of the polymer in the presence of a diluent material, a suitable catalyst and optionally an end-blocking agent; and Where required quenching the polymerization process wherein the diluent material is substantially retained within the resulting diluted organopolysiloxane containing polymer. The case additionally relates to products of the process and subsequent applications for the polymer such as for example sealants and rubbers.

Hydrosilylation cured organosiloxanes having diluent therein

A moisture curable composition capable of cure to an elastomeric body comprising

Organosiloxane compositions

A method of making a diluted organopolysiloxane containing polymer comprising the steps of:&#x2014;

A method of making a diluted polysiloxane containing polymer comprising the steps of:

A method of making a diluted organopolysiloxane polymer comprising the steps of:&#x2014;

A method for the adhesion of a layer of fluorosilicone rubber which is curable using a non-hydrosilylation curing process to a layer of silicone rubber which contains substantially no perfluoroalkyl groups and which is curable using a non-hydrosilylation curing processes described. The comprises the steps incorporating either a hydrosilylation catalyst or a siloxane containing at least two silicon bonded hydrogen groups into the fluorosilicone rubber composition prior to curing and incorporating the other of the hydrosilylation catalyst or the siloxane containing at least two silicon bonded hydrogen groups into the alternative silicone rubber composition prior to curing; forming the products of step (i) and step (ii) into required shapes; bringing the shaped products of step (iii) into contact with each other; and adhering the shaped products in contact with each other together by effecting a hydrosilylation reaction therebetween.

Adhesion of fluorosilicone rubber

Process for producing organosilicon compounds having silicon-bonded substituents, e.g. hexenyl, containing terminal olefinic unsaturation. Process comprises reacting .tbd.SiH with a diene in the presence of a mixture, and/or a reaction product, of a compound or complex of platinum and a compound having at least one amino group e.g. octylamine.

Hydrosilylation process

Process for preparing organosilicon compounds having silicon-bonded groups containing olefinic unsaturation by reaction of a silicon compound having SiH groups with a diene having at least 5 carbon atoms and in which the unsaturation is located at the terminal carbon atoms. The process is carried out in the presence of a catalyst which has been prepared by reacting (i) an inorganic solid having surface reactive groups, (ii) an organosilicom compound having a group reactive with the inorganic solid and a group containing nitrogen and/or sulphur and (iii) a platinum compound or complex PtLb in which L is a ligand. Products have reduced content of isomers resulting from migration of double bond to internal position.

Growing community of inventors

Penarth, United Kingdom

Robert A Drake