Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

The present invention pertains to a functionalized polymeric liquid polysiloxane material comprising non-organofunctional Q-type siloxane moieties and mono-organofunctional T-type siloxane moieties, wherein the material comprises a limited low amount of four-membered Q.sup.2-type and/or Q.sup.3-type siloxane ring species relative to the total Q-type siloxane species, and has a functionalization-specific degree of polymerization as well as T- to Q-type ratio. The present invention further pertains to methods for producing the polymeric liquid polysiloxane material as well as associated uses of the material.

The present invention pertains to a functionalized polymeric liquid polysiloxane material comprising non-organofunctional Q-type siloxane moieties and mono-organofunctional T-type siloxane moieties, wherein the material comprises a limited low amount of four-membered Q.sup.2-type and/or Q.sup.3-type siloxane ring species relative to the total Q-type siloxane species, and has a functionalization-specific degree of polymerization as well as T- to Q-type ratio. The present invention further pertains to methods for producing the polymeric liquid polysiloxane material as well as associated uses of the material.

Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

Process for making a cathode comprising the following steps (a) Providing a cathode active material selected from layered lithium transition metal oxides, lithiated spinels, lithium transition metal phosphate with olivine structure, and lithium nickel-cobalt aluminum oxides, (b) treating said cathode active material with an oligomer bearing units according to general formula (I a), wherein R.sup.1 are the same or different and selected from hydrogen and C.sub.1-C.sub.4-alkyl, aryl, and C.sub.4-C.sub.7-cycloalkyl, R.sup.2 and R.sup.3 are selected independently at each occurrence from phenyl and C.sub.1-C.sub.8-alkyl, C.sub.4-C.sub.7-cycloalkyl, C.sub.1-C.sub.8-haloalkyl, OPR.sup.1(O)*, and (CR.sup.9.sub.2).sub.pSi(R.sup.2).sub.2* wherein one or more non-vicinal CR.sup.9.sub.2 groups may be replaced by oxygen, R.sup.9 is selected independently at each occurrence from H and C.sub.1-C.sub.4-alkyl, and p is a variable from zero to 6, and wherein the overall majority of R.sup.2 and R.sup.3 is selected from C.sub.1-C.sub.8-alkyl, and, optionally, at least one of carbon in electrically conductive form and, optionally, a binder, c) applying a slurry of said treated cathode active material to a current collector, and d) at least partially removing solvent used in step (c).

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There is provided herein a flame retardant composition containing a thermosetting resin and a phosphorus-containing polysiloxane flame retardant, which flame retardant composition can be used in prepregs, laminate, bonding sheets and printed wiring boards.

There is provided herein a flame retardant composition containing a thermosetting resin and a phosphorus-containing polysiloxane flame retardant, which flame retardant composition can be used in prepregs, laminate, bonding sheets and printed wiring boards.

A gas permeable ophthalmic lens material comprises a tetraethoxysilane and an ionic silane. The ionic silane comprises positive charges and negative charges. The lens made therefrom thus comprises positive and negative charges, thus the gas permeable ophthalmic lens is hydrophilic, and prevents adhesion of bacteria in allowing the surface of the human eye to breath. A gas permeable ophthalmic lens made of the gas permeable ophthalmic lens material is also provided.

A gas permeable ophthalmic lens material comprises a tetraethoxysilane and an ionic silane. The ionic silane comprises positive charges and negative charges. The lens made therefrom thus comprises positive and negative charges, thus the gas permeable ophthalmic lens is hydrophilic, and prevents adhesion of bacteria in allowing the surface of the human eye to breath. A gas permeable ophthalmic lens made of the gas permeable ophthalmic lens material is also provided.