Nippon Shokubai Co., Ltd.

Nitto-denko Corporation

Shigeo Otome

Ken-ichi Ueda

Kenichi Ueda

Yuuki Nakano

Akio Naka

Tsuyoshi Chiba

Mie Nakata

Nobuhisa Noda

Naoki Tomoguchi

Shoji Ito

Hideo Asano

Hiroko Izumi

Yuichi Kawata

Shigeru Oka

Kouji Takabatake

Yow-hei Sohgawa

Yow-Hei Sohgawa

Ken-Ichi Ueda

Provided is a polarizer protective film, which has high heat resistance, high transparency, high optical characteristics, and high mechanical strength, and is excellent in adhesion with respect to a polarizer. Further, provided are a polarizing plate using such a polarizer protective film and a polarizer, which has high adhesion with respect to the polarizer protective film and the polarizer and is excellent in optical characteristics, and an image display apparatus of high quality using such a polarizing plate. A polarizer protective film according to the present invention includes a (meth)acrylic resin having a lactone ring structure and core-shell type nanoparticles having a core layer made of a rubber polymer and a shell layer made of a glass polymer.

Polarizer protective film, polarizing plate, and image display apparatus

Disclosed is an optical planar thermoplastic resin composition including a lactone ring-containing polymer as a main component thereof, or including a lactone ring-containing polymer and at least one other thermoplastic resin. The optical planar thermoplastic resin composition of the present invention has high transparency, high heat resistance, and high optical isotropy, and therefore, can sufficiently exhibit characteristics according to various optical applications.

Optical planar thermoplastic resin composition

To realize a resin composition which enables formation of a film having excellent film formability and bending resistance and having a small retardation. A resin composition of the present invention comprises: an acrylic resin as a main component; and organic fine particles whose average particle diameter ranges from 0.01 &#x3bc;m to 1 &#x3bc;m, wherein a glass transition temperature of the acrylic resin ranges from 110&#xb0; C. to 200&#xb0; C., and each of the organic fine particles has a structural unit of a vinyl cyanide monomer and a structural unit of an aromatic vinyl monomer.

Resin composition and film

Disclosed is a thermoplastic resin composition contains including a methacrylic resin having a ring structure in a main chain thereof and a glass transition temperature of 110&#xb0; C. or higher, and at least one kind of metal compound selected from metal salts, metal complexes, and metal oxides, wherein a content of the metal compound in the composition is from 10 to 10,000 ppm in terms of metal atom based on a mass of the methacrylic resin, and a process for producing such a thermoplastic resin composition, the process including carrying out, when preparing a methacrylic resin having a ring structure in a main chain thereof and a glass transition temperature of 110&#xb0; C. or higher, cyclization condensation reaction using a catalyst to form the ring structure; and then adding a deactivator of the catalyst.

Thermoplastic resin composition and production process thereof

The present invention provides a (meth)acrylic molding material comprising (A) a (meth)acrylic polymer obtained by polymerization of monomer components essentially containing a monomer having (a) carboxyl group(s) and an alkyl (meth)acrylate monomer, and (B) one or more kinds of monomers containing a vinyl group, wherein 30-600 parts by weight of aluminum hydroxide and 0.01-10 parts by weight of a succinic acid derivative are added for 100 parts by weight of the total of said polymer (A) and monomer (B). The (meth)acrylic molding material is thickened by aluminum hydroxide and the thickening behavior is controlled by the succinic acid derivative to prevent the viscosity from increasing with time, accordingly, the (meth)acrylic molding material shows good workability.

(Meth)acrylic molding material and a production process thereof

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Kyoto, Japan

Shigeo Otome