公开(公告)号：US06884823B1

公开(公告)日：2005-04-26

申请号：US09335946

申请日：1999-06-18

申请人： David E. Pierick ,  Jere R. Anderson ,  Sung W. Cha ,  Liqin Chen ,  James F. Stevenson ,  Dana E. Laing

发明人： David E. Pierick ,  Jere R. Anderson ,  Sung W. Cha ,  Liqin Chen ,  James F. Stevenson ,  Dana E. Laing

IPC分类号： B29C44/00 ,  B29C44/04 ,  B29C44/34 ,  B29C47/00 ,  B29C47/10 ,  B29C47/44 ,  B29C47/50 ,  B29C47/74 ,  C08J9/00 ,  B29D7/00

CPC分类号： B29C47/74 ,  B29C44/00 ,  B29C44/0461 ,  B29C44/0492 ,  B29C44/3446 ,  B29C44/3469 ,  B29C47/0004 ,  B29C47/0009 ,  B29C47/004 ,  B29C47/0042 ,  B29C47/02 ,  B29C47/0876 ,  B29C47/1063 ,  B29C47/1072 ,  B29C47/368 ,  B29C47/44 ,  B29C2947/92019 ,  B29C2947/92114 ,  B29C2947/922 ,  B29C2947/92209 ,  B29C2947/9238 ,  B29C2947/924 ,  B29C2947/92409 ,  B29C2947/92428 ,  B29C2947/92447 ,  B29C2947/92657 ,  B29K2105/0005 ,  B29K2105/04 ,  Y10T428/249953

摘要： Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling these parameters in an injection molding system. Another aspect involves an injection molding system including a nucleator that is upstream of a pressurized mold. Another aspect involves an extrusion system with the reciprocating screw for forming a single phase solution of non-nucleated blowing agent and polymeric material. Another aspect involves very thin walled microcellular material and very thin walled polymeric material. Another aspect provides a method for producing high weight reductions in very thin-walled parts with surfaces that have no noticeable differences from non-foamed parts.

公开(公告)号：US08137600B2

公开(公告)日：2012-03-20

申请号：US11894101

申请日：2007-08-20

申请人： David E. Pierick ,  Jere R. Anderson ,  Sung Woon Cha ,  Liqin Chen ,  James F. Stevenson ,  Dana E. Laing

发明人： David E. Pierick ,  Jere R. Anderson ,  Sung Woon Cha ,  Liqin Chen ,  James F. Stevenson ,  Dana E. Laing

IPC分类号： B29C44/00

CPC分类号： B29C47/74 ,  B29C44/00 ,  B29C44/0461 ,  B29C44/0492 ,  B29C44/3446 ,  B29C44/3469 ,  B29C47/0004 ,  B29C47/0009 ,  B29C47/004 ,  B29C47/0042 ,  B29C47/02 ,  B29C47/0876 ,  B29C47/1063 ,  B29C47/1072 ,  B29C47/368 ,  B29C47/44 ,  B29C2947/92019 ,  B29C2947/92114 ,  B29C2947/922 ,  B29C2947/92209 ,  B29C2947/9238 ,  B29C2947/924 ,  B29C2947/92409 ,  B29C2947/92428 ,  B29C2947/92447 ,  B29C2947/92657 ,  B29K2105/0005 ,  B29K2105/04 ,  Y10T428/249953

摘要： Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling these parameters in an injection molding system. Another aspect involves an injection molding system including a nucleator that is upstream of a pressurized mold. Another aspect involves an extrusion system with the reciprocating screw for forming a single phase solution of non-nucleated blowing agent and polymeric material. Another aspect involves very thin walled microcellular material and very thin walled polymeric material. Another aspect provides a method for producing high weight reductions in very thin-walled parts with surfaces that have no noticeable differences from non-foamed parts.

摘要翻译： 提供了用于制备微孔泡沫材料的注射成型体系和方法以及微细胞制品。 压降率和剪切速率在一些实施例中是重要的特征，并且本发明提供了用于在注塑系统中控制这些参数的系统。 另一方面涉及一种注塑系统，其包括在加压模具的上游的成核剂。 另一方面涉及具有用于形成非成核发泡剂和聚合材料的单相溶液的往复式螺杆的挤出系统。 另一方面涉及非常薄壁的微孔材料和非常薄壁的聚合材料。 另一方面提供了一种用于在与非发泡部件没有明显差异的表面的非常薄壁部件中产生高重量减轻的方法。

公开(公告)号：US07361294B2

公开(公告)日：2008-04-22

申请号：US11048835

申请日：2005-02-02

申请人： David E. Pierick ,  Jere R. Anderson ,  Sung Woon Cha ,  Liqin Chen ,  James F. Stevenson ,  Dana E. Laing

发明人： David E. Pierick ,  Jere R. Anderson ,  Sung Woon Cha ,  Liqin Chen ,  James F. Stevenson ,  Dana E. Laing

IPC分类号： B29C44/02

CPC分类号： B29C47/74 ,  B29C44/00 ,  B29C44/0461 ,  B29C44/0492 ,  B29C44/3446 ,  B29C44/3469 ,  B29C47/0004 ,  B29C47/0009 ,  B29C47/004 ,  B29C47/0042 ,  B29C47/02 ,  B29C47/0876 ,  B29C47/1063 ,  B29C47/1072 ,  B29C47/368 ,  B29C47/44 ,  B29C2947/92019 ,  B29C2947/92114 ,  B29C2947/922 ,  B29C2947/92209 ,  B29C2947/9238 ,  B29C2947/924 ,  B29C2947/92409 ,  B29C2947/92428 ,  B29C2947/92447 ,  B29C2947/92657 ,  B29K2105/0005 ,  B29K2105/04 ,  Y10T428/249953

摘要： Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling these parameters in an injection molding system. Another aspect involves an injection molding system including a nucleator that is upstream of a pressurized mold. Another aspect involves an extrusion system with the reciprocating screw for forming a single phase solution of non-nucleated blowing agent and polymeric material. Another aspect involves very thin walled microcellular material and very thin walled polymeric material. Another aspect provides a method for producing high weight reductions in very thin-walled parts with surfaces that have no noticeable differences from non-foamed parts.

摘要翻译： 提供了用于制备微孔泡沫材料的注射成型体系和方法以及微细胞制品。 压降率和剪切速率在一些实施例中是重要的特征，并且本发明提供了用于在注塑系统中控制这些参数的系统。 另一方面涉及一种注塑系统，其包括在加压模具的上游的成核剂。 另一方面涉及具有用于形成非成核发泡剂和聚合材料的单相溶液的往复式螺杆的挤出系统。 另一方面涉及非常薄壁的微孔材料和非常薄壁的聚合材料。 另一方面提供了一种用于在与非发泡部件没有明显差异的表面的非常薄壁部件中产生高重量减轻的方法。