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公开(公告)号：US20230202130A1
公开(公告)日：2023-06-29
申请号：US18175297
申请日：2023-02-27
申请人： OTRAJET INC.
发明人： Ching-Hao CHEN , Liang-Hui YEH
摘要： A main technical feature of a method for molding and forming a flip-flop and a mold thereof provided by the invention is that when a polymer raw material is filled into a mold chamber space of the mold, the filled raw material is preferentially flowed in a direction of a strap area space used to mold a V-shaped strap portion of the flip-flop to ensure that the slender V-shaped strap portion of the flip-flop can be integrally formed.
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公开(公告)号：US20230144539A1
公开(公告)日：2023-05-11
申请号：US17546749
申请日：2021-12-09
申请人： OTRAJET INC.
发明人： Ching-Hao CHEN , Liang-Hui YEH
摘要： A main technical feature of a method for molding and forming a flip-flop and a mold thereof provided by the invention is that when a polymer raw material is filled into a mold chamber space of the mold, the filled raw material is preferentially flowed in a direction of a strap area space used to mold a V-shaped strap portion of the flip-flop to ensure that the slender V-shaped strap portion of the flip-flop can be integrally formed.
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公开(公告)号：US20220063136A1
公开(公告)日：2022-03-03
申请号：US17085419
申请日：2020-10-30
申请人： OTRAJET INC.
发明人： Liang-Hui YEH
IPC分类号： B29B7/42
摘要： A mixing method provided by the invention comprises steps of melting a solid-state polymer raw material into a flowable molten raw material fluid to flow into a mixing space at a first volume flow rate, when the raw material fluid entering the mixing space, introducing a foaming agent in a fluid form into the mixing space simultaneously or at a different time, mixing the foaming agent with the molten raw material fluid into a mixture in the mixing space, circulating the mixture in the mixing space at a second volume flow rate, and causing the second volume flow rate greater than the first volume flow rate.
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