Title:
気泡モルホロジーを制御するためにナノ粒子を用いる熱可塑性プラスチックフォームの形成方法
Document Type and Number:
Japanese Patent JP2007512425
Kind Code:
A
Abstract:
A process for making closed-cell, alkenyl aromatic polymer foams using nano-particle nucleation agents to control the cell morphology of the resulting foam includes forming a polymer melt at a temperature above the polymer glass transition temperature (for crystal polymers) or the polymer melt point (for amorphous polymers); incorporating selected nano-particles into the polymer melt; incorporating blowing agents into the polymer melt at an elevated pressure; optionally incorporating other additives, such as flame retardants, into the polymer melt; and extruding the polymer melt under conditions sufficient to produce a foam product having a desired cell morphology, characterized by parameters such as reduced average cell size range and/or increased asymmetry of the cells.
Inventors:
Lind Joseph Pee
Roland Earl
Brindel Raymond M
Roland Earl
Brindel Raymond M
Application Number:
JP2006541658A
Publication Date:
May 17, 2007
Filing Date:
November 22, 2004
Export Citation:
Assignee:
Owens Corning
International Classes:
C08J9/04; B29C47/00; C08J5/00; C08J9/00; B29K105/04
Domestic Patent References:
| JP2003292664A | 2003-10-15 | |||
| JP2002212330A | 2002-07-31 |
Attorney, Agent or Firm:
Sadao Kumakura
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Koji Hirayama
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Koji Hirayama