Abstract: A heat resistant porous layer composition for a separator for an electrochemical battery includes a compound represented by Formula 1, a polyvinylidene fluoride (PVdF)-based polymer, the PVdF-based polymer including one or more of a PVdF-based homopolymer or a PVdF-hexafluoropropylene-based copolymer in which a unit originating from hexafluoropropylene is present in an amount of 15 wt % or less based on the total weight of the PVdF-hexafluoropropylene-based copolymer, the PVdF-hexafluoropropylene-based copolymer having a weight average molecular weight of 600,000 g/mol or more, an initiator; and a solvent, wherein Formula 1 is defined herein.

Abstract: The present invention relates to a porous heat-resistant layer composition for a separation membrane for a battery, comprising: a crosslinkable binder selected from monomeric oligomers, polymers or mixtures thereof having at least one functional group; an inorganic particle surface-treated with a functional group capable of reacting with the crosslinkable binder; a polymerization initiator; and a solvent. Also, the present invention relates to a separation membrane and a lithium secondary battery comprising the same, the separation membrane comprising a porous substrate and a porous heat-resistant layer formed on one or both surfaces of the substrate, wherein the porous heat-resistant layer comprises a crosslinked structure binder and an inorganic particle, and the inorganic particle is surface-treated with a functional group and reacted with the crosslinked structure binder.

Abstract: A heat resistant porous layer composition for a separator for an electrochemical battery includes a compound represented by Formula 1, a polyvinylidene fluoride (PVdF)-based polymer, the PVdF-based polymer including one or more of a PVdF-based homopolymer or a PVdF-hexafluoropropylene-based copolymer in which a unit originating from hexafluoropropylene is present in an amount of 15 wt % or less based on the total weight of the PVdF-hexafluoropropylene-based copolymer, the PVdF-hexafluoropropylene-based copolymer having a weight average molecular weight of 600,000 g/mol or more, an initiator; and a solvent, wherein Formula 1 is defined herein.

Abstract: A method for preparing a polyethersulfone includes oxidation of a poly arylene ether sulfone-sulfide compound including a repeat unit represented by Formula 1 with an aqueous solution of an organic acid and an aqueous solution of hydrogen peroxide. In the method, the overall process is carried out under mild conditions of about 190° C. or less, thereby enabling economic preparation of a polyethersulfone without complicated post-treatment, such as separation of by-products formed from a basic compound, and the like. wherein R1, R2, R3 and R4 are each independently a C1 to C10 hydrocarbon group, and a, b, c and d are each independently an integer from 0 to 4.

Abstract: The acrylic copolymer according to the present invention has a specific repeating unit and includes, in a chain, a methacrylate unit, a glutaric anhydride unit, or a mixture thereof in the amount of 0 to 1 ppm.

Abstract: Disclosed herein is a phosphorus compound represented by Formula 1: wherein each R is the same or different and is independently hydrogen, C1-C6 alkyl or C6-C12 aryl.

Abstract: The present invention provides a thermoplastic resin composition that can have excellent flame retardancy comprising about 100 parts by weight of a base resin including about 30 to about 100% by weight of a polycarbonate-based resin (A); and about 0.1 to about 40 parts by weight of a phosphorus-containing compound in the form of polymer (C). The thermoplastic resin composition can have excellent flame retardancy, can exhibit a balance of properties such as impact strength, heat resistance, flowability, and the like, and can be environment-friendly.

Abstract: A polycarbonate resin composition comprises: about 30 to about 99% by weight of a polycarbonate resin (A); and about 1 to about 70% by weight of a rubber modified aromatic vinyl based copolymer resin (B); and about 0.1 to about 40 parts by weight of a phosphorous compound (C) including a phosphate compound (C1) and a phosphonate compound (C2), per 100 parts by weight of a base resin including (A) and (B). The polycarbonate resin composition can have excellent flame retardancy and improved heat resistance by using a combination of at least two different phosphorous compounds.

Abstract: Disclosed herein is a phosphorus compound represented by Formula 1: wherein each R is the same or different and is independently hydrogen, C1-C6 alkyl or C6-C12 aryl.

Abstract: A non-halogen flameproof polycarbonate resin composition of the present invention comprises (A) about 30 to about 100% by weight of a polycarbonate resin, (B) about 0 to about 70% by weight of a rubber modified aromatic vinyl resin, and (C) about 0.5 to about 30 parts by weight of a phosphorus compound represented by the following Chemical Formula (I) or a combination thereof, based on about 100 parts by weight of the base resin including (A) and (B). The present invention can provide a polycarbonate resin composition which can have excellent flame retardancy and which can be environmentally friendly. wherein R1 and R2 are each independently C1 to C10 alkyl, C5 to C7 cycloalkyl or phenyl.

Abstract: A polycarbonate resin composition comprises: about 30 to about 99% by weight of a polycarbonate resin (A); and about 1 to about 70% by weight of a rubber modified aromatic vinyl based copolymer resin (B); and about 0.1 to about 40 parts by weight of a phosphorous compound (C) including a phosphate compound (C1) and a phosphonate compound (C2), per 100 parts by weight of a base resin including (A) and (B). The polycarbonate resin composition can have excellent flame retardancy and improved heat resistance by using a combination of at least two different phosphorous compounds.

Abstract: A flame retardant polycarbonate resin composition of the present invention comprises: (A) about 30 to about 100% by weight of a polycarbonate resin; (B) about 0 to about 70% by weight of a rubber modified aromatic vinyl based copolymer resin; and (C) about 0.1 to about 40 parts by weight of a phosphorous compound or a combination of phosphorus compounds represented by the following Chemical Formula (I), per 100 parts by weight of a base resin comprising (A) and (B). The flame retardant polycarbonate resin composition of the present invention can have excellent flame retardancy and heat resistance. wherein R1, R2, R3, and R4 are each independently hydroxyl, phenol, phenyl, or C1-C4 alkyl; and n is an integer of 1 to 10.

Abstract: A non-halogen flameproof polycarbonate resin composition of the present invention comprises (A) about 30 to about 100% by weight of a polycarbonate resin, (B) about 0 to about 70% by weight of a rubber modified aromatic vinyl resin, and (C) about 0.5 to about 30 parts by weight of a phosphorus compound represented by the following Chemical Formula (I) or a combination thereof, based on about 100 parts by weight of the base resin including (A) and (B). The present invention can provide a polycarbonate resin composition which can have excellent flame retardancy and which can be environmentally friendly. wherein R1 and R2 are each independently C1 to C10 alkyl, C5 to C7 cycloalkyl or phenyl.