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US 8,262,939 B2Granted
Thermoplastic nanocomposite resin composite materials
AssigneeCheil Industries Inc.
InventorsIl Jin Kim, O Sung Kwon, Jae Bum Park
Life of this patent
Estimating the term…
Abstract
A polymer composite material includes metal (oxide) nanoparticles chemically bonded to a vinyl polymer. Some embodiments may additionally comprise thermoplastic resin through which the nanoparticles and vinyl polymer are dispersed. In some embodiments, the composite materials have improved impact strength, tensile strength, heat resistance, and flexural modulus.
Claims14
A composite material comprising:
- surface treated metal or metal oxide nanoparticles selected from the group consisting of silicon, aluminum, tin, iron, zinc, magnesium, zirconium, cerium, lithium, silver, antimony and nickel having a sol-gel network structure and comprising a condensed alkoxysilane compound reacted with the metal or metal oxide nanoparticles, wherein the condensed alkoxysilane compound further includes a functional group that is capable of bonding with a vinyl polymer, and wherein said metal or metal oxide nanoparticles comprise about 75 to 99% by weight of said metal or metal oxide and about 1 to 25% by weight of said alkoxysilane compound;
- a vinyl polymer of one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and acrylic monomers;
- wherein the functional group of the condensed alkoxysilane compound is bonded with the vinyl polymer and wherein the functional group of the polymerizable alkoxysilane compound comprises an acryloxy functional group or a methacryloxy functional group.
A composite material comprising:
- surface treated metal or metal oxide nanoparticles selected from the group consisting of silicon, aluminum, tin, iron, zinc, magnesium, zirconium, cerium, lithium, silver, antimony and nickel having a sol-gel network structure and comprising a condensed alkoxysilane compound reacted with the metal or metal oxide nanoparticles, wherein the condensed alkoxysilane compound further includes a functional group that is capable of bonding with a vinyl polymer, wherein said metal or metal oxide nanoparticles comprise about 75 to 99% by weight of said metal or metal oxide and about 1 to 25% by weight of said alkoxysilane compound;
- a vinyl copolymer of (a) one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and acrylic monomers and (b) one or more imides selected from the group consisting of maleimide, N-methyl maleimide, N-phenyl maleimide, and acrylimide;
- wherein the functional group of the condensed alkoxysilane compound is bonded with the vinyl polymer and wherein the functional group of the polymerizable alkoxysilane compound comprises an acryloxy functional group or a methacryloxy functional group.
Dependencies are inferred from the claim text.