Title:
PROCESS FOR PRODUCTION OF FOAMED RESIN SHEETS
Document Type and Number:
WIPO Patent Application WO/2007/122832
Kind Code:
A1
Abstract:
The invention provides a process for the production of foamed resin sheets which
enables satisfactory dispersion of a nucleating agent in a thermoplastic resin
and which attains excellent extrusion and is excellent in productivity. A process
for the production of foamed resin sheets by extruding a thermoplastic resin
composition prepared by incorporating a nucleating agent and a blowing agent
consisting of a gas containing nitrogen and/or carbon dioxide into a thermoplastic
resin, characterized in that the thermoplastic resin composition further contains
a high-molecular ester and a wetting agent exhibiting a coefficient of kinematic
viscosity at 100°C of 70 to 2700cSt.
Inventors:
HASEGAWA MINORU (JP)
Application Number:
PCT/JP2007/051476
Publication Date:
November 01, 2007
Filing Date:
January 30, 2007
Export Citation:
Assignee:
FUJI SEAL INT INC (JP)
HASEGAWA MINORU (JP)
HASEGAWA MINORU (JP)
International Classes:
B29C48/305; B29C48/10; C08J9/12; B29K105/04; B29L7/00
Foreign References:
| JP7064005B2 | 2022-05-09 | |||
| JPH09194621A | 1997-07-29 | |||
| JP2001019787A | 2001-01-23 | |||
| JPS5398350A | 1978-08-28 | |||
| JPH10193439A | 1998-07-28 | |||
| JPH0764005B2 | 1995-07-12 | |||
| US5082608A | 1992-01-21 | |||
| JPH09194621A | 1997-07-29 | |||
| US6177036B1 | 2001-01-23 |
Attorney, Agent or Firm:
FUJIMOTO, Noboru (15-14 Minamisemba 1-chome, Chuo-Ku,Osaka-shi, Osaka 81, JP)
Download PDF:
Previous Patent: PACKAGING BODY
Next Patent: METHOD FOR MEASURING DISTANCE BETWEEN REFERENCE REFLECTOR AND MELT SURFACE, METHOD FOR CONTROL THE P...
Next Patent: METHOD FOR MEASURING DISTANCE BETWEEN REFERENCE REFLECTOR AND MELT SURFACE, METHOD FOR CONTROL THE P...