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US 2010/0249272 A1Published application
Thermoplastic nanocomposite resin composite materials
AssigneeCheil Industries Inc.
InventorsIl Jin Kim, O. Sung Kwon, Jae Bum Park
Life of this patent
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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.
Claims60
A composite material comprising:
- metal (oxide) nanoparticles surface treated with a polymerizable alkoxysilane compound having a functional group that is capable of bonding with a vinyl polymer by a sol gel process to form a sol-gel network structure;
- and
- a vinyl polymer of one or more monomers selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer, and an acrylic monomer;
- wherein at least some of the metal (oxide) nanoparticles are chemically bonded to at least a part of the vinyl polymer.
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A method of forming a nanocomposite material comprising:
- providing metal (oxide) nanoparticles, wherein the metal (oxide) nanoparticles comprise an organic functional group;
- and
- graft polymerizing a vinyl polymer onto the metal (oxide) nanoparticles,
- wherein the step of providing metal (oxide) nanoparticles comprises forming the metal (oxide) nanoparticles by surface treating a metal (oxide) nanoparticle having at least one hydroxyl group with a polymerizable alkoxysilane compound having a functional group that is capable of bonding with the vinyl polymer in a sol-gel process.
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A composition comprising:
- a continuous phase comprising a vinyl polymer, wherein the vinyl polymer of the continuous phase includes one or more monomers selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer, and an acrylic monomer;
- and
- a dispersed phase comprising a composite material, wherein the composite material of the dispersed phase includes metal (oxide) nanoparticles surface treated with a polymerizable alkoxysilane compound having a functional group that is capable of bonding with a vinyl polymer by a sol gel process;
- and a vinyl polymer including one or more monomers selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer, and an acrylic monomer, wherein at least some of the metal (oxide) nanoparticles are chemically bonded to at least a part of the vinyl polymer of the composite material.
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A method of forming a composition comprising:
- providing metal (oxide) nanoparticles, wherein the metal (oxide) nanoparticles comprise an organic functional group;
- graft polymerizing a vinyl polymer onto the metal (oxide) nanoparticles to form a composite material;
- and
- further in situ polymerizing a vinyl polymer to form a vinyl polymer as a continuous phase and the composite material as a dispersed phase.
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Dependencies are inferred from the claim text.