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公开(公告)号：EP1320457A1
公开(公告)日：2003-06-25
申请号：EP01977858.8
申请日：2001-10-01
申请人： Trexel Inc.
CPC分类号： B29C44/12 , B29C44/348 , B32B3/26 , B32B5/18 , Y10T428/249978
摘要： The invention provides in-mold decorated articles and methods to form the articles. The in-mold decorated articles include a polymeric portion having a substrate material adhered to a surface of the polymeric portion. The substrate material may be, for example, a fine or a fabric. In some embodiments, the polymeric portion may be a foam and, particularly, a microcellular polymeric material. The articles are formed by injecting a mixture of blowing agent and polymeric material into a mold cavity in which the substrate material is disposed, so that the substrate material is forced against a wall of the mold cavity. The blowing agent, which in certain preferred cases is a supercritical fluid, decreases the viscosity of the polymeric material and, therefore, enables reductions in injection pressures and temperatures. Reduced injection temperature and pressure may widen the processing window, increase flexibility in the selection of substrate materials, and can eliminate the need for a barrier layer that is sometimes used in conventional processes. The method may be used to produce a variety of in-mold decorated articles.
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公开(公告)号：EP1320457B1
公开(公告)日：2016-04-20
申请号：EP01977858.8
申请日：2001-10-01
申请人： Trexel, Inc.
CPC分类号： B29C44/12 , B29C44/348 , B32B3/26 , B32B5/18 , Y10T428/249978
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公开(公告)号：EP1335827A1
公开(公告)日：2003-08-20
申请号：EP01975621.2
申请日：2001-10-01
申请人： Trexel Inc.
发明人： KISHBAUGH, Levi, A. , LEVESQUE, Kevin, J. , GUILLEMETTE, Albert, H. , CHEN, Liqin , XU, Jingyi , OKAMOTO, Kelvin, T.
CPC分类号： B29C44/3446 , B29C44/348 , B29C44/352 , B29C45/0005 , B29C45/0013 , B29K2105/046 , B29K2105/12 , Y10T428/249924 , Y10T428/249953
摘要： Polymer molding processes, such as injection-molding processes, include use of a viscosity-reducing supercritical fluid additive resulting in less breakage of reinforing fibers upon introduction into the mold.
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公开(公告)号：EP1335827B1
公开(公告)日：2018-03-07
申请号：EP01975621.2
申请日：2001-10-01
申请人： Trexel, Inc.
发明人： KISHBAUGH, Levi, A. , LEVESQUE, Kevin, J. , GUILLEMETTE, Albert, H. , CHEN, Liqin , XU, Jingyi , OKAMOTO, Kelvin, T.
IPC分类号： B32B3/00 , B32B5/00 , B29C44/34 , B29C45/00 , B29K105/12 , B29K105/04
CPC分类号： B29C44/3446 , B29C44/348 , B29C44/352 , B29C45/0005 , B29C45/0013 , B29K2105/046 , B29K2105/12 , Y10T428/249924 , Y10T428/249953
摘要： Polymer molding processes, such as injection-molding processes, include use of a viscosity-reducing supercritical fluid additive resulting in less breakage of reinforcing fibers upon introduction into the mold.
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公开(公告)号：EP1390188A2
公开(公告)日：2004-02-25
申请号：EP02734194.0
申请日：2002-05-06
申请人： Trexel Inc.
发明人： PIERICK, David, E. , KISHBAUGH, Levi, A. , XU, Jingyi , CARDONA, Juan, C. , SHETH, Himanshu, R. , LEVESQUE, Kevin, J. , NG, Jeffrey, L. , KIM, Roland, Y.
IPC分类号： B29C45/50
CPC分类号： B29C45/76 , B29C44/3442 , B29C44/348 , B29C44/428 , B29C44/60 , B29C45/0013 , B29C45/1706 , B29C45/1816 , B29C2045/1722 , B29C2045/185 , B29C2945/76006 , B29C2945/76056 , B29C2945/76076 , B29C2945/76257 , B29C2945/76334 , B29C2945/76367 , B29C2945/76953
摘要： Systems and methods for injection molding polymeric materials are provided. The systems and methods use a supercritical fluid additive. In some cases, the use of supercritical fluid additive enables formation of molded articles with low clamping forces and/or low injection pressures. Low clamping forces and/or low injection pressures may reduce the cost of a system designed to form a particular molded article. In some embodiments, the systems may include a control system that controls the operation of one or more components of the system (e.g., the extruder or the supercritical fluid additive introduction system). The systems and methods are suitable for forming polymeric foam articles including microcellular material articles.
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