Momentive Performance Materials Gmbh

Sumi Dinkar

Roland Wagner

Anubhav Saxena

Anantharaman Dhanabalan

Indumathi Ramakrishnan

Douglas Michael Dukes

Gunnar Hoffmüller

Anuj Mittal

Abirami Srikanth

Raveendra Mathad

Thorsten Felder

Manav Gupta

Mayank Dubey

Karl Heinz Stachulla

Monika Friedrichs

Christopher Michael Byrne

Alok Sarkar

Chandrashekar Raman

David Michael Rusinko, Jr

Samuel Conzone

Shahid Murtuza

Mihirkumar Maheshbhai Patel

Markus Bley

Mayanglambam Rebika Devi

Vivek Karambelkar

Anubhay Saxena

Mihirkumar Patel Maheshbai

Mihirkumar Maheshbai Patel

Shayne J Landon

George Samuels

Edward J Nesakumar

Samuel D Conzone

Mayank Kumar Dubey

Composition of comprising nano metal oxide/hydroxide particles and a polyorganosiloxane having increased refractive index, processes to cure these compositions for making transparent coats, shaped articles by an extrusion or molding process having a refractive index above the refractive index of the polyorganosiloxane. Use of the cured polyorganosiloxane compositions as optical devices, coats, lenses or light guides.

Modified filler particles and silicone compositions comprising the same

There is provided herein an elastomeric coating composition containing (a) at least one condensation polymerization-effective polymer bearing two or more silicon atoms; (b) a surface wetting agent, (c) a filler; (d) a condensation catalyst; and, (e) optionally, one or more crosslinking agents. There are also provided architectural coatings including the same, as well as single coat anti-dirt, and/or anti-stain, and/or anti-fouling coatings including the same.

Dirt pick-up resistant silicone coating composition

The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising metal-arene complexes that are suitable as replacements for organotin in sealant and RTV formulations.

Moisture curable compound with metal-arene complexes

There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition, there is provided a curable composition including the polysiloxane.

Curable siloxane compositions

There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition there is provided a curable composition including the polysiloxane.

The present invention provides curable compositions that are substantially free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst system comprising the combination of a carboxylic acid, an amino-containing adhesion promoter or a mixture of amine-containing adhesion promoters and an amino-containing siloxane. The combination of these materials accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.

Moisture curable organopolysiloxane compositions

The present invention provides curable compositions that are free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst comprising curable polymers having reactive terminal silyl groups. In particular, a silylated carboxylic acid is an alternative to organotin or other metal catalysts. In addition, the catalyst may be used with an amino-containing adhesion promoter or a mixture of amine-containing adhesion promoters and an amino-containing siloxane. The combination of these materials accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.

Non-metal catalyzed room temperature moisture curable organopolysiloxane compositions

The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides La(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The La(III) complexes are comparable to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.

The present invention provides curable compositions that are substantially free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst composition comprising the combination of a (i) carbodiimide functional compound, and (ii) an amino-containing compound such as an amino silane functional compound and/or an organic amine compound. The combination of these materials, particularly when aged, accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.

The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Fe(III) and Bi(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Fe(III) and Bi(III) complexes are comparable or superior to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.

Moisture curable organopolysiloxane composition

In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.

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Bengaluru, India

Sumi Dinkar