Dow Corning Corporation

Giuseppina Lavinaro

Tommy Detemmerman

Isabelle Maton

Robert A Drake

Jean Willieme

Thierry Dessilly

Jary David Jensen

Robert Drake

Jary Jensen

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 is capable of cure to an elastomeric body. The composition includes an extended polymer, a suitable cross-linking agent, a suitable condensation catalyst, an organic plasticizer, and one or more fillers. The extended polymer includes an organosiloxane containing polymer of a specific formula and an organic extender selected from linear or branched mono unsaturated hydrocarbons, wherein the organopolysiloxane polymer comprises from 5 to 20% by weight of the composition. The cross-linking agent includes at least two hydroxyl and/or hydrolysable groups reactive with the organopolysiloxane polymer. The organic plasticizer is selected from one or more of the group of natural drying oils, fatty acid(s), fatty acid esters, polyols, and organic phosphates.

Organosiloxane compositions

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

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;

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Trivieres, Belgium

Giuseppina Lavinaro