The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane units each having one methyl substituent and one monovalent C.sub.4-C.sub.40 organic radical substituent having two to six hydroxyl groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0.035 to about 0.15, and (2) two terminal (meth)acryloyl groups. The hydrophilized polydiorganosiloxane vinylic crosslinker has a number average molecular weight of from about 3000 Daltons to about 80,000 Daltons. The present invention is also related to a silicone hydrogel contact lens, which comprises repeating units derived from a hydrophilized polydiorganosiloxane vinylic crosslinker of the invention.

The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane units each having one methyl substituent and one monovalent C.sub.4-C.sub.40 organic radical substituent having two to six hydroxyl groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0.035 to about 0.15, and (2) two terminal (meth)acryloyl groups. The hydrophilized polydiorganosiloxane vinylic crosslinker has a number average molecular weight of from about 3000 Daltons to about 80,000 Daltons. The present invention is also related to a silicone hydrogel contact lens, which comprises repeating units derived from a hydrophilized polydiorganosiloxane vinylic crosslinker of the invention.

Provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant amines and (ii) an acid. Also provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant acids and (ii) an amine. The compositions are useful inter alia for chemical or oil spill cleanup, drug delivery systems, transparent films, adhesives, binding agents, conductors, membranes, cross-linking agents, or opticoelectronic applications. Also provided are methods for making the compositions of the invention, as well as a battery and a composition for controlled release of a compound, each comprising a composition of the invention.

Provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant amines and (ii) an acid. Also provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant acids and (ii) an amine. The compositions are useful inter alia for chemical or oil spill cleanup, drug delivery systems, transparent films, adhesives, binding agents, conductors, membranes, cross-linking agents, or opticoelectronic applications. Also provided are methods for making the compositions of the invention, as well as a battery and a composition for controlled release of a compound, each comprising a composition of the invention.

Silicone compounds, delivery compositions, compositions, packaged products and displays comprising such silicone compounds, and processes for making and using such benefit agent delivery compositions, compositions, packaged products and displays. Such compositions have improved deposition and retention properties that may impart improved benefit characteristics to a composition and/or situs. Such silicone compounds solve the further problem of malodor reduction as, in addition to maldor masking, such compounds block a malodor's access to a sensory cell, yet leave such sensor cell open to other molecules, for example scent molecules. Thus, the malodor control technologies disclosed herein do not unduly interfere with the scent of the perfumed or unperfumed situs that is treated with the malodor control technology.

The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane units each having one methyl substituent and one monovalent C.sub.4-C.sub.40 organic radical substituent having two to six hydroxyl groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0.035 to about 0.15, and (2) two terminal (meth)acryloyl groups. The hydrophilized polydiorganosiloxane vinylic crosslinker has a number average molecular weight of from about 3000 Daltons to about 80,000 Daltons. The present invention is also related to a silicone hydrogel contact lens, which comprises repeating units derived from a hydrophilized polydiorganosiloxane vinylic crosslinker of the invention.

An ultrahigh-strength SiO.sub.2 aerogel with alternately configured soft chains and hard cores, and a method for preparing same are provided. According to the present invention, firstly, octa-olefin functionalized silsesquioxane and a mercapto silane coupling agent are dissolved in an organic solvent under a protective gas to perform a catalytic reaction, and then the reaction system is dried to obtain a white powder; secondly, the white powder is dissolved in an alcohol solution, the mixture is stirred until the white powder is completely dissolved, and then an acid-catalyzed hydrolysis reaction and a heat-induced gelation reaction under an alkaline environment are performed to obtain a wet gel; and finally, the gel is subjected to aging, surface modification, displacement and vacuum lyophilization to obtain the ultrahigh-strength SiO.sub.2 aerogel with alternately configured soft chains and hard cores.

An ultrahigh-strength SiO.sub.2 aerogel with alternately configured soft chains and hard cores, and a method for preparing same are provided. According to the present invention, firstly, octa-olefin functionalized silsesquioxane and a mercapto silane coupling agent are dissolved in an organic solvent under a protective gas to perform a catalytic reaction, and then the reaction system is dried to obtain a white powder; secondly, the white powder is dissolved in an alcohol solution, the mixture is stirred until the white powder is completely dissolved, and then an acid-catalyzed hydrolysis reaction and a heat-induced gelation reaction under an alkaline environment are performed to obtain a wet gel; and finally, the gel is subjected to aging, surface modification, displacement and vacuum lyophilization to obtain the ultrahigh-strength SiO.sub.2 aerogel with alternately configured soft chains and hard cores.

The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.

The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.