The present invention provides a bone cement composition. The bone cement composition includes a developing particle, an acrylic polymer, and an acrylic monomer, wherein a specific surface area of the developing particle is in a range from about 0.1 m.sup.2/g to about 5 m.sup.2/g. The present invention further provides a bone cement composition kit. The bone cement composition kit includes a power component and a liquid component, respectively stored in separate containers, wherein the power component includes a developing particle and an acrylic polymer, and the liquid component includes an acrylic monomer. A specific surface area of the developing particle is in a range from about 0.1 m.sup.2/g to about 5 m.sup.2/g.

The present invention provides a bone cement composition. The bone cement composition includes a developing particle, an acrylic polymer, and an acrylic monomer, wherein a specific surface area of the developing particle is in a range from about 0.1 m.sup.2/g to about 5 m.sup.2/g. The present invention further provides a bone cement composition kit. The bone cement composition kit includes a power component and a liquid component, respectively stored in separate containers, wherein the power component includes a developing particle and an acrylic polymer, and the liquid component includes an acrylic monomer. A specific surface area of the developing particle is in a range from about 0.1 m.sup.2/g to about 5 m.sup.2/g.

The disclosure provides a film composition, wherein the film composition includes an oligomer and a crosslinking agent. The oligomer can have a structure represented by Formula (I) ##STR00001##
wherein R.sup.1 and R.sup.2 are independently hydrogen, C.sub.1-20 alkyl group, C.sub.2-20 alkenyl group, C.sub.6-12 aryl group, C.sub.6-12 alkylaryl group, C.sub.5-12 cycloalkyl group, C.sub.6-20 cycloalkylalkyl group, alkoxycarbonyl group, or alkylcarbonyloxy group; R.sup.1 is not hydrogen when R.sup.2 is hydrogen; a is 0 or 1; 100n1; 100m1; and when n is not 0, the ratio of n to m is from 3:1 to 1:4. The weight ratio of the oligomer and the crosslinking agent can be from 9:1 to 3:7. The oligomer has a number average molecular weight (Mn) from 1,000 to 8,000.

The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120 C., preferably of 90-110 C., particularly preferably of 90-105 C., and still more preferably of 90-100 C.

The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120 C., preferably of 90-110 C., particularly preferably of 90-105 C., and still more preferably of 90-100 C.

Disclosed is an acrylic thermoplastic resin composition containing an acrylic multilayer structure polymer particle (A) and an acrylic block copolymer (B). The component (A) has, as an inner layer, a rubber component layer (I) of a copolymer of 50-99.99 mass % of an acrylic acid ester monomer unit, 49.99-0 mass % of an additional monofunctional monomer unit, and 0.01-10 mass % of a polyfunctional monomer unit, and has, as an outermost layer, a thermoplastic resin component layer (II) of a copolymer of 40-100 mass % of a methacrylic acid ester monomer unit and 60-0 mass % of an additional monomer unit and having Mn of 30,000 or smaller. A layer (I)/layer (II) mass ratio is 30/70 to 90/10. An average particle size of the component (A) is 150 nm or smaller. The component (B) has Mw of 32,000 to 300,000. A mass ratio of (A)/(B) is 1/99 to 99/1.

The invention provides novel polymers, crosslinked polymer-nucleic acid complexes, lipid-polymer-nucleic acid-based complexation and nanoassemblies, and nanoassembly-based intracellular delivery of nucleic acids and controlled release thereof upon degradation of the nanoassemblies in response to specific microenvironment in the cell, and compositions and methods of preparation and use thereof.

The invention provides novel polymers, crosslinked polymer-nucleic acid complexes, lipid-polymer-nucleic acid-based complexation and nanoassemblies, and nanoassembly-based intracellular delivery of nucleic acids and controlled release thereof upon degradation of the nanoassemblies in response to specific microenvironment in the cell, and compositions and methods of preparation and use thereof.

A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.

A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.