Henkel Ag & Company, Kgaa

Henkel (china) Company Limited

Henkel IP Holding Gmbh

Liwei Zhang

Hui Li

Zhiming Li

Wentao Xing

Juan Du

Wenjuan Tan

Thomas Xing

Hao Wu

Tadashi Takano

Shengqian Kong

Mieko Sano

Thomas Plantenberg

Leticia Borque

Carol Yang

Daniel J Duffy

Pasing Zhiming Li

Aya Hikita

Zhiming Pasing Li

Wentao Thomas Xing

Port wrap eye sling

Ergonomic metal footrest with adjustable rubber feet/nylon feet

The present invention discloses an organopolysiloxane prepolymer and a curable organopolysiloxane composition comprising the same, particularly used as an encapsulant in light emitting diodes.

Organopolysiloxane prepolymer and a curable organopolysiloxane composition comprising the same

This invention is a vinylcarbosiloxane resin that is the hydrosilation reaction product of 1,3,5,7 -tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane and a hydride-terminated linear polysiloxane, siloxane, or silane, having two terminal Si&#x2014;H hydrogens reactive with vinyl groups in a hydrosilation reaction, in the presence of a platinum catalyst. Suitable hydride-terminated linear polysiloxanes, siloxances, and silanes include those having the structures:  In another embodiment, the vinylcarbosiloxane resin can be reacted with one or more other hydrido-silanes and hydrido-polysiloxanes in the presence of a platinum catalyst to form a curable composition.

Vinyl carbosiloxane resins

The present invention provides a polycarbosilane represented by the following formula (1):[RRRSiX][RRSiX][RSiX][SiX]&#x2003;&#x2003;(1); anda curable composition comprising:

Polycarbosilane and curable compositions for LED encapsulants comprising same

The present invention provides a curable composition, comprising:

Curable compositions for LED encapsulants comprising a polycarbosilane and a hydrosilicone

The moisture and gas barrier properties of an organopolysiloxane having at least two substituents which are able to undergo crosslinking reactions per molecule shall be improved. This is achieved by providing an organopolysiloxane wherein at least 10 mol % of all substituents are represented by formula (1)  Furthermore, the invention is directed to a composition based on the aforementioned organopolysiloxane and to the use of the organopolysiloxane and of the composition.

Silicone resin with improved barrier properties

The present invention relates to a liquid hydrosilicone resin and a preparation process thereof. The average composition of the liquid hydrosilicone resin is represented by the following formula:(RRRSiO).(RRSiO). (RSiO).(SiO) wherein Rto Rare identical or different radicals independently selected from the group consisting of organic groups and a hydrogen atom, with the proviso that at least one of Rto Ris a hydrogen atom bonded directly to a silicon atom. The liquid hydrosilicone resin is obtained by dispersing a hydrosilicone oil, a hydroxyl silicone resin and a dehydrogenation catalyst in a solvent to form a dispersion, allowing the dispersion to react, and then removing the solvent and the catalyst.

Hydrosilicone resin and preparation process thereof

The present invention relates to a curable organopolysiloxane composition, which comprises: 

Curable resins for LED encapsulation

Growing community of inventors

Shanghai, China

Liwei Zhang