The present disclosure concerns foamed thermoplastic compositions exhibiting improved multi-axial impact strength. The foamed thermoplastic compositions can be employed in a number of requiring impact strength and flame performance.

The present invention provides a flame-retardant engineering plastic and a preparation method thereof. The flame-retardant engineering plastic contains a halogen-free flame retardant represented by the formula I as a component of raw materials. The addition of the flame retardant gives good flame retardancy and excellent mechanical properties to the engineered plastic. The engineering plastic is prepared by the raw materials comprising the following components in parts by mass: 40-60 parts of PC, 20-40 parts of epoxy resin, 10-20 parts of ABS and 5-15 parts of flame retardant. The engineering plastic prepared by the present invention has a bending strength which can be up to 82.4-84 MPa, a tensile strength of up to 65.7-66.6 MPa, a notched impact strength of up to 26.3-27 J/m, a melt index of 12.6-15, and an oxygen index of 26.2-27.5%, and thus has excellent mechanical properties and good flame retardancy.

The present invention provides a flame-retardant engineering plastic and a preparation method thereof. The flame-retardant engineering plastic contains a halogen-free flame retardant represented by the formula I as a component of raw materials. The addition of the flame retardant gives good flame retardancy and excellent mechanical properties to the engineered plastic. The engineering plastic is prepared by the raw materials comprising the following components in parts by mass: 40-60 parts of PC, 20-40 parts of epoxy resin, 10-20 parts of ABS and 5-15 parts of flame retardant. The engineering plastic prepared by the present invention has a bending strength which can be up to 82.4-84 MPa, a tensile strength of up to 65.7-66.6 MPa, a notched impact strength of up to 26.3-27 J/m, a melt index of 12.6-15, and an oxygen index of 26.2-27.5%, and thus has excellent mechanical properties and good flame retardancy.

The present invention provides a flame-retardant engineering plastic and a preparation method thereof. The flame-retardant engineering plastic contains a halogen-free flame retardant represented by the formula I as a component of raw materials. The addition of the flame retardant gives good flame retardancy and excellent mechanical properties to the engineered plastic. The engineering plastic is prepared by the raw materials comprising the following components in parts by mass: 40-60 parts of PC, 20-40 parts of epoxy resin, 10-20 parts of ABS and 5-15 parts of flame retardant. The engineering plastic prepared by the present invention has a bending strength which can be up to 82.4-84 MPa, a tensile strength of up to 65.7-66.6 MPa, a notched impact strength of up to 26.3-27 J/m, a melt index of 12.6-15, and an oxygen index of 26.2-27.5%, and thus has excellent mechanical properties and good flame retardancy.

The present invention relates to a flame-retardant polycarbonate composition comprising the following components, relative to the total weight of the composition: A) 30-70 wt. % of at least one aromatic polycarbonate, B) 20-60 wt. % of at least one polysiloxane-polycarbonate block condensate, C) 0.5-5 wt. % of at least one cyclic phosphazene, D) 1-5 wt. % of at least one silicone-acrylate rubber based impact modifier, E) 0.3-3 wt % of kaolin, F) 0.1-1 wt. % of at least one anti-dripping agent, and G) 0.1-1 wt. % of at least one UV absorber. The present invention also relates to a shaped article produced from the composition. The polycarbonate composition according to the present invention has a good combination of low-temperature impact performance, flame-retardancy, hydrolytic stability, anti-UV performance, and heat resistance.

The present invention relates to a flame-retardant polycarbonate composition comprising the following components, relative to the total weight of the composition: A) 30-70 wt. % of at least one aromatic polycarbonate, B) 20-60 wt. % of at least one polysiloxane-polycarbonate block condensate, C) 0.5-5 wt. % of at least one cyclic phosphazene, D) 1-5 wt. % of at least one silicone-acrylate rubber based impact modifier, E) 0.3-3 wt % of kaolin, F) 0.1-1 wt. % of at least one anti-dripping agent, and G) 0.1-1 wt. % of at least one UV absorber. The present invention also relates to a shaped article produced from the composition. The polycarbonate composition according to the present invention has a good combination of low-temperature impact performance, flame-retardancy, hydrolytic stability, anti-UV performance, and heat resistance.

A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a polycarbonate resin; approximately 0.1-5 parts by weight of a rubber-modified aromatic vinyl-based copolymer resin; approximately 0.1-7 parts by weight of zinc oxide; approximately 0.01-2 parts by weight of a C10-20 alkyl phosphate; approximately 0.01-2 parts by weight of a maleic anhydride-graft polymerized rubber polymer; and approximately 0.01-2 parts by weight of a phosphite-based antioxidant, wherein the zinc oxide has an average particle size of approximately 0.5-3 μm, a specific surface area BET of approximately 1-10 m.sup.2/g, a 2θ value as the peak position, of 35-37°, in X-ray diffraction analysis, and a crystallite size, represented by relation 1, of approximately 1,000-2,000 Å. The thermoplastic resin composition has excellent antibacterial properties, weather resistance, impact resistance, heat resistance and the like.

A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a polycarbonate resin; approximately 0.1-5 parts by weight of a rubber-modified aromatic vinyl-based copolymer resin; approximately 0.1-7 parts by weight of zinc oxide; approximately 0.01-2 parts by weight of a C10-20 alkyl phosphate; approximately 0.01-2 parts by weight of a maleic anhydride-graft polymerized rubber polymer; and approximately 0.01-2 parts by weight of a phosphite-based antioxidant, wherein the zinc oxide has an average particle size of approximately 0.5-3 μm, a specific surface area BET of approximately 1-10 m.sup.2/g, a 2θ value as the peak position, of 35-37°, in X-ray diffraction analysis, and a crystallite size, represented by relation 1, of approximately 1,000-2,000 Å. The thermoplastic resin composition has excellent antibacterial properties, weather resistance, impact resistance, heat resistance and the like.

A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a polycarbonate resin; approximately 0.1-5 parts by weight of a rubber-modified aromatic vinyl-based copolymer resin; approximately 0.1-7 parts by weight of zinc oxide; approximately 0.01-2 parts by weight of a C10-20 alkyl phosphate; approximately 0.01-2 parts by weight of a maleic anhydride-graft polymerized rubber polymer; and approximately 0.01-2 parts by weight of a phosphite-based antioxidant, wherein the zinc oxide has an average particle size of approximately 0.5-3 μm, a specific surface area BET of approximately 1-10 m.sup.2/g, a 2θ value as the peak position, of 35-37°, in X-ray diffraction analysis, and a crystallite size, represented by relation 1, of approximately 1,000-2,000 Å. The thermoplastic resin composition has excellent antibacterial properties, weather resistance, impact resistance, heat resistance and the like.

The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g/mol or greater. The present disclosure further provides an article and methods thereof.