Patent classifications
C08G77/392
Hydrophilized polydiorganosiloxane vinylic crosslinkers and uses thereof
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.
Hydrophilized polydiorganosiloxane vinylic crosslinkers and uses thereof
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.
Silicon-containing polymer, film-forming composition, method for forming silicon-containing polymer coating, method for forming silica coating, and production method for silicon-containing polymer
The present invention aims to provide: a novel silicon-containing polymer that is alkali soluble or is soluble in an alkaline aqueous solution by using heat, etc.; a film-forming composition including the silicon-containing polymer; a method for forming a silicon-containing polymer coating using the film-forming composition; a method for forming a silica coating using the film-forming composition; and a production method for the silicon-containing polymer. The silicon-containing polymer including at least either a polysiloxane chain or oligosiloxane chain or a polysilane chain or oligosilane chain in the molecular chain thereof has a group that has e.g., a carboxy or carboxylic acid ester group and a sulfide group, introduced to the molecular chain as a result of an ene-thiol reaction.
Side chain functionalized organosiloxane polymers, coating compositions and ice-phobic coatings thereof
The disclosure relates to sidechain functionalized organosiloxane compounds comprising polyalkyleneoxide (POA) and/or polyalkyleneoxide coupled zwitterionic moieties with various other modular side chains including reactive and or non-reactive groups. The present disclosure further also pertains to ice-phobic polymer formulations capable of curing on a substrate to form a surface that is ice-phobic, resistant to ice formation, and/or resistant to ice adhesion. The disclosed ice-phobic polymer formulations comprise one or more disclosed sidechain functionalized organosiloxane compound, one or more binder resin, and/or one or more lubricating liquid. The present disclosure further relates to articles comprising the disclosed ice-phobic polymer compositions, thereby providing articles having ice-phobic properties. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Side chain functionalized organosiloxane polymers, coating compositions and ice-phobic coatings thereof
The disclosure relates to sidechain functionalized organosiloxane compounds comprising polyalkyleneoxide (POA) and/or polyalkyleneoxide coupled zwitterionic moieties with various other modular side chains including reactive and or non-reactive groups. The present disclosure further also pertains to ice-phobic polymer formulations capable of curing on a substrate to form a surface that is ice-phobic, resistant to ice formation, and/or resistant to ice adhesion. The disclosed ice-phobic polymer formulations comprise one or more disclosed sidechain functionalized organosiloxane compound, one or more binder resin, and/or one or more lubricating liquid. The present disclosure further relates to articles comprising the disclosed ice-phobic polymer compositions, thereby providing articles having ice-phobic properties. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
ORGANOSILICON COMPOUND AND METHOD FOR PRODUCING SAME
Provided is an organosilicon compound characterized by containing at least one group represented by structural formula (1) in one molecule and having a main chain comprising a silicon-containing organic group. This organosilicon compound exhibits satisfactorily fast curability, and excellent yellowing resistance, heat resistance, storage stability, and safety.
##STR00001##
(In the formula, each R.sup.1 independently represents an unsubstituted or substituted C1-10 alkyl group, or an unsubstituted or substituted C6-10 aryl group, each R.sup.2 independently represents an unsubstituted or substituted C1-10 alkyl group, or an unsubstituted or substituted C6-10 aryl group, and each R.sup.3 independently represents a hydrogen atom or an unsubstituted or substituted C1-10 alkyl group. m is a number from 1-3, and n is an integer of 2 or greater. A dashed line represents a bond.)
AMINO-SUBSTITUTED POLYSILOXANES COMBINED WITH POLYMERIZABLE AND UNPOLYMERIZABLE ORGANIC ACIDS
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.
AMINO-SUBSTITUTED POLYSILOXANES COMBINED WITH POLYMERIZABLE AND UNPOLYMERIZABLE ORGANIC ACIDS
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.
Modified acrylic resin cured product, and laminate thereof, and production methods therefor
The purpose of the present invention is to provide a modified acrylic resin cured product, particularly, a modified acrylic resin film, having excellent lubricity and excellent transparency, and a laminate including the modified acrylic resin film. The modified acrylic resin cured product (C) according to the present invention is obtained by treating the surface of a cured product (X) including an acrylic resin by using a compound (A) containing, in each molecule, one or more anionic hydrophilic groups forming an ion pair with an onium ion of an amino silicone, and one or more groups selected from the group consisting of a group containing a polymerizable carbon-carbon double bond, an amino group, a mercapto group and a hydroxy group.
Modified acrylic resin cured product, and laminate thereof, and production methods therefor
The purpose of the present invention is to provide a modified acrylic resin cured product, particularly, a modified acrylic resin film, having excellent lubricity and excellent transparency, and a laminate including the modified acrylic resin film. The modified acrylic resin cured product (C) according to the present invention is obtained by treating the surface of a cured product (X) including an acrylic resin by using a compound (A) containing, in each molecule, one or more anionic hydrophilic groups forming an ion pair with an onium ion of an amino silicone, and one or more groups selected from the group consisting of a group containing a polymerizable carbon-carbon double bond, an amino group, a mercapto group and a hydroxy group.