A preceramic resin formulation comprising a polycarbosilane preceramic polymer and an organically modified silicon dioxide preceramic polymer. A ceramic material comprising a reaction product of the polycarbosilane preceramic polymer and organically modified silicon dioxide preceramic polymer is also described. Articles comprising the ceramic material are also described, as are methods of forming the preceramic resin formulation and the ceramic material.

The present invention relates to a manufacturing method for a wavelength converting component which is prepared from a dispersion containing a crosslinkable ceramizable polymer material having a silazane repeating unit and at least one wavelength converting material. There are further provided wavelength converting components which can be used for converting blue, violet and/or UV light into light with a longer wavelength. There is also provided a light source and a lighting unit comprising said wavelength converting components.

A stabilizer represented by the following formula for suppressing generation of silane from a polysilane composition:

CH.sub.2═CH—R.sup.1 wherein R.sup.1 is C.sub.3-20 linear, branched or cyclic alkyl group, C.sub.2-15 linear or branched alkenyl group or C.sub.7-20 aryl group substituted with alkenyl group. A invention also relates to a method for suppressing generation of silane and a method for inactivating a polysilane, and a polysilane inactivated treatment composition.

A stabilizer represented by the following formula for suppressing generation of silane from a polysilane composition:

CH.sub.2═CH—R.sup.1 wherein R.sup.1 is C.sub.3-20 linear, branched or cyclic alkyl group, C.sub.2-15 linear or branched alkenyl group or C.sub.7-20 aryl group substituted with alkenyl group. A invention also relates to a method for suppressing generation of silane and a method for inactivating a polysilane, and a polysilane inactivated treatment composition.

The present disclosure relates to a composition including a light-emitting perovskite compound (1) which includes constituent components A, B, and X, and a silazane or modified product thereof (2).

The present disclosure relates to a composition including a light-emitting perovskite compound (1) which includes constituent components A, B, and X, and a silazane or modified product thereof (2).

Described herein are compositions and methods for use in automotive care. In particular, the present disclosure is directed to water-based compositions comprising silicone combinations that delivery cleaning, protective, preservative and shine qualities.

A method for manufacturing a part made of composite material includes forming a ceramic matrix phase in pores of a fibrous preform by pyrolysis of a cross-linked copolymer ceramic precursor, the cross-linked copolymer including a first precursor macromolecular chain of a first ceramic having free carbon, and a second precursor macromolecular chain of a second ceramic having free silicon, the first macromolecular chain being bonded to the second macromolecular chain by cross-linking bridges including a bonding structure of formula *.sup.1—X—*.sup.2; in this formula, X designates boron or aluminium, -*.sup.1 designates the bond to the first macromolecular chain and -*.sup.2 the bond to the second macromolecular chain.

A curable composition comprises: at least one aliphatic carbosilane having m Si—H groups, at least one aliphatic carbosilane having n vinyl groups, and at least one hydrosilylation reaction catalyst. m is an integer greater than or equal to 2, n is an integer greater than or equal to 2, and m+n is at least 5. A cured reaction product and an electronic article including the same are also disclosed.

A curable composition comprises: at least one aliphatic carbosilane having m Si—H groups, at least one aliphatic carbosilane having n vinyl groups, and at least one hydrosilylation reaction catalyst. m is an integer greater than or equal to 2, n is an integer greater than or equal to 2, and m+n is at least 5. A cured reaction product and an electronic article including the same are also disclosed.