公开(公告)号：US20200300363A1

公开(公告)日：2020-09-24

申请号：US16813015

申请日：2020-03-09

申请人： UCHIYAMA MANUFACTURING CORP.

发明人： Keiko IKEDA ,  Yoshihiko YAMAGUCHI ,  Tomohisa YAMAMOTO ,  Tatsuo KATAYAMA

IPC分类号： F16J15/30 ,  F16J15/28 ,  F16J15/328 ,  B29C37/00

摘要： There is provided a seal member for a bearing comprising a molded rubber article and a core metal, wherein the molded rubber article is produced by vulcanization-molding a rubber composition comprising 100 parts by mass of a rubber (A) containing an acrylic acid ester as a main component, 1 to 30 parts by mass of a carbon material (B), and 10 to 100 parts by mass of a carbon black (C) having a DBP oil absorption of 20 mL/100 g or more and less than 150 mL/100 g; the carbon material (B) is a carbon nanotube (B1) or a carbon black (B2) having a DBP oil absorption of 150 mL/100 g or more and 1000 mL/100 g or less; and a volume resistivity of the molded rubber article is 1×106 Ω·cm or less.

公开(公告)号：US20220119652A1

公开(公告)日：2022-04-21

申请号：US17502865

申请日：2021-10-15

申请人： UCHIYAMA MANUFACTURING CORP.

发明人： Mari KAWATA ,  Tomohisa YAMAMOTO ,  Kazuhiro SHIMIZU ,  Yuki NISHIYAMA

IPC分类号： C09D5/32 ,  C09D175/04 ,  C09D7/61 ,  B44C5/04

摘要： There is provided a decorative sheet composed of a multilayer structure having an intermediate layer and a protective layer on a surface of a cork sheet, wherein a decolorized cork layer is formed on the surface of the cork sheet in contact with the intermediate layer; the intermediate layer is a coated film formed by drying an aqueous emulsion; the protective layer comprises an ultraviolet absorbing layer made of a resin composition containing an ultraviolet absorbing agent; and the surface of the protective layer is a design surface. Such a decorative sheet has excellent light resistance and fastness to rubbing, and also maintains an appearance peculiar to cork.

公开(公告)号：US20190084199A1

公开(公告)日：2019-03-21

申请号：US16134184

申请日：2018-09-18

申请人： Uchiyama Manufacturing Corp.

发明人： Akihiro ANABUKI ,  Tatsuo KATAYAMA ,  Tomohisa YAMAMOTO

IPC分类号： B29C43/52 ,  B65D39/00 ,  B29C43/00 ,  B29C43/02 ,  B29C35/08

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.