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US 2006/0235154 A1Published application
Resin composition, extruded article, and anti-static sheet
AssigneeMitsubishi Plastics, Inc.
InventorsNaoya Miara, Nobuyasu Suzuki, Masahiko Kawano
Life of this patent
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Abstract
A resin composition has 60 to 85% by weight of a polystyrene resin, and 15 to 40% by weight of a polyether ester amide. The polystyrene resin is a copolymer comprising a styrene monomer and a (meth)acrylate monomer.
Claims17
A resin composition comprising:
- 60 to 85% by weight of a polystyrene resin, wherein said polystyrene resin is a copolymer comprising a styrene monomer and a (meth)acrylate monomer, which has a rubber-like elastomer dispersed therein;
- and
- 15 to 40% by weight of a polyether ester amide,
- wherein said resin composition has a melt viscosity of 2×103 to 8×104 (poises) at a shear rate of 10 (sec−1) at 200° C.
1 more element
An anti-static sheet comprising:
- a core layer, formed by dispersing a polyether ester amide in a thermoplastic resin, having an elastic modulus in tension of 900 MPa or more at ordinary temperature and having a volume resistivity of 1012 Ω·cm or less;
- and
- an outer layer formed, on the surface of said core layer, from a material obtained by dispersing a polyether ester amide in a thermoplastic resin so that said outer layer has a surface resistivity of 1010 Ω or less.
An anti-static sheet comprising:
- a plurality of core layers each comprising a thermoplastic resin;
- and
- an outer layer comprising a thermoplastic resin containing therein an electrically conductive filler, wherein said outer layer is formed so that said core layers are disposed between said outer layer, and has a connection portion for connecting the adjacent core layers.
An anti-static sheet comprising:
- a sheet base material comprising a polystyrene or ABS resin;
- and
- a layer formed on at least one surface of said sheet base material, said layer comprising 15 to 75 parts by mass of a polyether ester amide relative to 100 parts by mass of a polystyrene resin, wherein the difference in refractive index between said polystyrene resin and said polyether ester amide is less than 0.03,
- wherein said layer has a surface resistivity of 109 to 1012 Ω.
1 more element
An anti-static sheet comprising:
- 15 to 75 parts by mass of a polyether ester amide relative to 100 parts by mass of a polystyrene resin;
- wherein the difference in refractive index between said polystyrene resin and said polyether ester amide is less than 0.03,
- wherein said anti-static sheet is subjected to heat treatment at 85° C. for 60 minutes to generate 100 ppm or less of a volatile component.
An anti-static sheet comprising:
- 100 parts by mass of a polystyrene resin;
- 15 to 75 parts by mass of a polyether ester amide, wherein the difference in refractive index between said polystyrene resin and said polyether ester amide is less than 0.03;
- and
- 1 to 10 parts by mass of a graft polymer comprising epoxy-modified acryl, polystyrene, and polymethyl methacrylate (PMMA).
1 more element
Dependencies are inferred from the claim text.