The present invention relates to a composition comprising an aqueous dispersion of multiphase polymer particles comprising first polymer particles having a T.sub.g of less than 30° C. and second polymer particles having a T.sub.g in the range of from 100° C. to 110° C., wherein the second polymer particles are phase separated from and occluded within the first polymer particles; wherein the number average molecular weight (M.sub.n) of the multiphase polymer particles is in the range of from 9,000 to 25,000 g/mole; and wherein the second polymer particles comprise at least 95 weight percent methyl methacrylate. The composition of the present invention is useful in a formulation that can be used to prepare a water-resistant blister free LASD coating with little or no surface defects.

The present invention is a powdered dispersant for hydraulic compositions containing a copolymer obtained by polymerizing raw material monomers containing a predetermined monomer 1 containing AO group with a number of added moles n falling within a predetermined range and a predetermined monomer 2 having a predetermined group such as a carboxylic acid group or the like, wherein a ratio of monomer 2 in the raw material monomers is 22 mass % or more, and a product of a value of n of monomer 1 and a value of mass % of the ratio is 420 or more and 2600 or less.

The present invention is a powdered dispersant for hydraulic compositions containing a copolymer obtained by polymerizing raw material monomers containing a predetermined monomer 1 containing AO group with a number of added moles n falling within a predetermined range and a predetermined monomer 2 having a predetermined group such as a carboxylic acid group or the like, wherein a ratio of monomer 2 in the raw material monomers is 22 mass % or more, and a product of a value of n of monomer 1 and a value of mass % of the ratio is 420 or more and 2600 or less.

A block copolymer is provided that includes a first block having pendant phosphate and/or phosphonate groups and a second block that contains pendant poly(dialkylsiloxane) groups. Compositions containing the block copolymer as well as articles that include the block copolymer are also provided. The block copolymer can be used to provide a surface that is easy to clean and/or that is resistant to oil and grease without the use of fluorinated materials.

A block copolymer is provided that includes a first block having pendant phosphate and/or phosphonate groups and a second block that contains pendant poly(dialkylsiloxane) groups. Compositions containing the block copolymer as well as articles that include the block copolymer are also provided. The block copolymer can be used to provide a surface that is easy to clean and/or that is resistant to oil and grease without the use of fluorinated materials.

A resin composition is provided and contains a maleimide compound, a polyphenylene ether compound having an unsaturated double bond in the molecule, a phosphorus-containing compound having a group represented by the following Formula (1) and a group containing a phosphorus atom in the molecule, and a curing agent.

##STR00001##

In Formula (1), R.sub.1 represents a hydrogen atom or an alkyl group.

A resin composition is provided and contains a maleimide compound, a polyphenylene ether compound having an unsaturated double bond in the molecule, a phosphorus-containing compound having a group represented by the following Formula (1) and a group containing a phosphorus atom in the molecule, and a curing agent.

##STR00001##

In Formula (1), R.sub.1 represents a hydrogen atom or an alkyl group.

A method of forming persistent micelles is described. Particularly, methods disclosed herein include dissolving a block copolymer in a first solvent to form a dispersion containing unimers or dynamic micelles. Further, a method includes contacting the dispersion with a second solvent forming the persistent micelles. The persistent micelles formed by the method of the present disclosure can be used for controlled delivery of dispersions in organic electronic coatings, paint, or drug delivery applications and can also be used to control the pore size of films that include an oxide, a nitride, a carbide, a metal, or a carbon material.

A method of forming persistent micelles is described. Particularly, methods disclosed herein include dissolving a block copolymer in a first solvent to form a dispersion containing unimers or dynamic micelles. Further, a method includes contacting the dispersion with a second solvent forming the persistent micelles. The persistent micelles formed by the method of the present disclosure can be used for controlled delivery of dispersions in organic electronic coatings, paint, or drug delivery applications and can also be used to control the pore size of films that include an oxide, a nitride, a carbide, a metal, or a carbon material.

A water-responsive interpenetrating polymer network, a preparation method and use thereof are provided. The water-responsive interpenetrating polymer network comprises an interpenetrating polymer network formed by a cholesteric liquid crystal polymer and a polyionic liquid; wherein the cholesteric liquid crystal polymer is formed by polymerization of a liquid crystal mixture; and the polyionic liquid contains a hydrophilic group or is a hydrophilic salt. The interpenetrating polymer network is water responsive without needs of activation with an alkaline solution, which simplifies the preparation process, and has stable water responsiveness performance after prolonged and/or repeated exposure to water. The water-responsive interpenetrating polymer network can be used to prepare light reflective coatings and reflective devices, and has higher commercial value.