Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Including surface treatment of porous body
Reexamination Certificate
2011-03-08
2011-03-08
Johnson, Christina (Department: 1742)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Including surface treatment of porous body
C264S055000
Reexamination Certificate
active
07901602
ABSTRACT:
According to the present invention, there is provided a method for producing expandable styrene-modified olefin-based resin particles comprising steps of: impregnating styrene-modified olefin-based resin particles with an easily volatile blowing agent to obtain expandable resin particles, and impregnating 100 parts by weight of the expandable resin particles with 0.1 to 2.0 parts by weight of a surfactant at a temperature of 10 to 30° C. and at a pressure of 0.05 to 0.30 MPa, to obtain expandable styrene-modified olefin-based resin particles.
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Satou Masaya
Togou Narihiko
Greenblum & Bernstein P.L.C.
Hauth Galen
Johnson Christina
Sekisui Plastics Co., Ltd.
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