To provide a siloxane polymer containing a silsesquioxane unit and a chain siloxane unit in the main chain and having a reactive group. A siloxane polymer containing a repeating unit represented by Formula (1): ##STR00001## R.sup.0's independently represent C.sub.6-20 aryl or C.sub.5-6 cycloalkyl; R.sup.1 independently represent a hydrogen atom, C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.2, R.sup.4, and R.sup.6 independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.3 represents a monovalent group having a reactive group; R.sup.5's independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, C.sub.1-40 alkyl, or C.sub.1-20 alkoxy; y1, y2, and z are an integer of 0 to 30; g′ is 0 or 1; and, in the case of y1=y2=z=0, at least one terminal is the group represented by Formula (2).

To provide a siloxane polymer containing a silsesquioxane unit and a chain siloxane unit in the main chain and having a reactive group. A siloxane polymer containing a repeating unit represented by Formula (1): ##STR00001## R.sup.0's independently represent C.sub.6-20 aryl or C.sub.5-6 cycloalkyl; R.sup.1 independently represent a hydrogen atom, C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.2, R.sup.4, and R.sup.6 independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.3 represents a monovalent group having a reactive group; R.sup.5's independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, C.sub.1-40 alkyl, or C.sub.1-20 alkoxy; y1, y2, and z are an integer of 0 to 30; g′ is 0 or 1; and, in the case of y1=y2=z=0, at least one terminal is the group represented by Formula (2).

A polymeric liquid material formed of molecular building blocks of core-shell type architecture, wherein each building block consists of a hyperbranched polysiloxane core and a functional siloxane shell peripherally attached thereto, the material comprising bridging oxygen moieties (Si—O—Si), hydrolysable alkoxy moieties (Si—O—R) and organofunctional moieties (R′—Si—) and (R.sub.1-S1-R.sub.2) and less than 0.5 mass percent hydroxy moieties (Si—OH). The core has a degree of polymerization DP.sub.core in the range of 1.3 to 2.7, the shell is formed of R′-substituted siloxane moieties and has a degree of polymerization DP.sub.shell in the range of 0.3 to 2.5. At least 75 atomic percent of all Si atoms in the core are bonded exclusively to alkoxy or bridging oxygens, the remainder each being bonded to 3 oxygens and 1 carbon. The total Si to free hydrolysable alkoxy molar ratio in the material is 1:1.25 to 1:2.75, and the material has a viscosity in the range of 10-100,000 cP. A method for preparing the polymeric liquid material relies on first forming the hyper-branched polysiloxane core followed by a build-up of the functional siloxane shell. To do so, a reaction scheme based on adding stoichiometric amounts of acetic anhydride in a water-free environment is exploited.

The present invention relates to an onium-functionalized siloxane having the general Formula (X) or (X-A) as defined herein; a method for preparing the onium-functionalized siloxane; and its use as an antimicrobial agent.

To provide a siloxane polymer containing a silsesquioxane unit and a chain siloxane unit in the main chain and having a reactive group. A siloxane polymer containing a repeating unit represented by Formula (1):

##STR00001## R.sup.0's independently represent C.sub.6-20 aryl or C.sub.5-6 cycloalkyl; R.sup.1 independently represent a hydrogen atom, C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.2, R.sup.4, and R.sup.6 independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.3 represents a monovalent group having a reactive group; R.sup.5's independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, C.sub.1-40 alkyl, or C.sub.1-20 alkoxy; y1, y2, and z are an integer of 0 to 30; g′ is 0 or 1; and, in the case of y1=y2=z=0, at least one terminal is the group represented by Formula (2).

To provide a siloxane polymer containing a silsesquioxane unit and a chain siloxane unit in the main chain and having a reactive group. A siloxane polymer containing a repeating unit represented by Formula (1):

##STR00001## R.sup.0's independently represent C.sub.6-20 aryl or C.sub.5-6 cycloalkyl; R.sup.1 independently represent a hydrogen atom, C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.2, R.sup.4, and R.sup.6 independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.3 represents a monovalent group having a reactive group; R.sup.5's independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, C.sub.1-40 alkyl, or C.sub.1-20 alkoxy; y1, y2, and z are an integer of 0 to 30; g′ is 0 or 1; and, in the case of y1=y2=z=0, at least one terminal is the group represented by Formula (2).

Compositions and mixtures along with processes for preparing and uses for the same.

Compositions and mixtures along with processes for preparing and uses for the same.

Disclosed are a fluorine-silicon-containing polyphosphate ester and method for preparation thereof, having a chemical structural formula of: ##STR00001##
wherein R.sub.1 is ##STR00002##
R.sub.2 is ##STR00003##
n=10˜100. The fluorine-silicon-containing polyphosphate ester of the present invention uses silicon phosphorus and fluorine for improving flame retardancy. Phosphorus catalyzes the system to form a phosphorus-rich carbon layer, performing a protective-layer function and thereby preventing further breakdown of the epoxy resin. The silicon-containing epoxy resin forms a silica-containing carbon layer during the process of combustion, strengthening the carbon-layer structure and further improving the protective function of the carbon-layer. The introduction of elemental fluorine improves the thermal stability of the epoxy resin, thereby improving the flame retardancy performance of the system.

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.