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公开(公告)号：EP3459700A1
公开(公告)日：2019-03-27
申请号：EP18195163.3
申请日：2018-09-18
CPC分类号： B29C43/52 , B27K7/00 , B27N5/00 , B27N7/00 , B29C35/0805 , B29C43/003 , B29C43/027 , B29C2035/0855 , B29C2043/029 , B29K2103/00 , B65D39/0011 , B65D39/0058
摘要： An objective of the present invention is to provide a method for producing a cork stopper by compression molding cork grains, which can provide a cork stopper excellent in sealability and safety. There is provided a method for producing a cork stopper, comprising: mixing cork grains and an adhesive; compression molding the mixture to give an intermediate; and then heating the intermediate to expand the cork grains.
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公开(公告)号：EP2581324A1
公开(公告)日：2013-04-17
申请号：EP11792472.0
申请日：2011-06-08
CPC分类号： B65D39/0058 , B23K26/0006 , B23K26/0078 , B23K2203/30
摘要： A cork stopper used for sealing a container opening and a production method for the cork stopper. The cork stopper comprises a cork stopper body having a molded cork body and a synthetic resin outer layer covering an outer circumference of the molded cork body, the synthetic resin outer layer being made of a synthetic material treated with a roughening process on its surface. The cork stopper body is set to a freely rotatable jig and is rotated together with a transcribing mold with a concave-convex surface by pressing the transcribing mold onto the outer circumference of the cork stopper body while rotating the transcribing mold, thereby transcribing the concave-convex onto the surface of the synthetic resin outer layer.
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公开(公告)号：EP3459700B1
公开(公告)日：2020-10-28
申请号：EP18195163.3
申请日：2018-09-18
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公开(公告)号：EP4212297A1
公开(公告)日：2023-07-19
申请号：EP22210331.9
申请日：2022-11-29
摘要： A cork molded product (the present cork molded product) according to an aspect of the present disclosure is obtained by mixing cork particles and a polylactic acid dispersion liquid and then compression-molding a mixture of the cork particles and the polylactic acid dispersion liquid. The present cork molded product preferably contains 100 parts by mass of the cork particles and 0.4 to 25 parts by mass of polylactic acid. In the present cork molded product, it is also preferable that the polylactic acid dispersion liquid contains an aqueous medium.
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公开(公告)号：EP2581324B1
公开(公告)日：2018-04-25
申请号：EP11792472.0
申请日：2011-06-08
CPC分类号： B65D39/0058 , B23K26/0006 , B23K26/3584 , B23K2103/30
摘要： A cork stopper used for sealing a container opening and a production method for the cork stopper. The cork stopper comprises a cork stopper body having a molded cork body and a synthetic resin outer layer covering an outer circumference of the molded cork body, the synthetic resin outer layer being made of a synthetic material treated with a roughening process on its surface. The cork stopper body is set to a freely rotatable jig and is rotated together with a transcribing mold with a concave-convex surface by pressing the transcribing mold onto the outer circumference of the cork stopper body while rotating the transcribing mold, thereby transcribing the concave-convex onto the surface of the synthetic resin outer layer.
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