发明名称 METHOD OF MANUFACTURING A FOAM-MOLDED PRODUCT
摘要 An improved method of manufacturing a foam-molded product is provided including the steps of: filling a resin containing a foaming agent into a mold cavity by injection within a time period from a time point just before completion of mold clamping to a time point after the completion of mold clamping allowing the resin thus filled in the mold cavity to form a skin layer over a surface thereof thereafter retracting a movable mold to define a predetermined cavity clearance between the movable mold and a stationary mold, so as to cause the foaming agent contained in an uncured portion of the resin to foam and cooling the resin filled in the cavity mold to form a foam-molded product having a surface forming a tight skin layer and an inside portion in a foamed state.
申请公布号 CA2377510(C) 申请公布日期 2011.11.15
申请号 CA20022377510 申请日期 2002.03.19
申请人 NISSEN CHEMITEC CORPORATION 发明人 MURAKOSHI, HIDEKAZU;TAMURA, SHINGO;MATSUOKA, ICHIRO
分类号 B29C44/04;B29C45/00;B29C44/58;B29C45/76;B29K105/04 主分类号 B29C44/04
代理机构 代理人
主权项
地址