专利检索 ap:("Mitsubishi Pencil Company, Limited") AND inv:"MURATA, Tatsuya" 第 1 页

1.

发明公开
NON-BAKED PENCIL LEAD AND METHOD FOR MANUFACTURING SAME 审中-实审

公开(公告)号：EP4357430A1

公开(公告)日：2024-04-24

申请号：EP22824639.3

申请日：2022-03-30

申请人： Mitsubishi Pencil Company, Limited

发明人： MURATA, Tatsuya

IPC分类号： C09D13/00 , B43K19/02 , B43K19/18

CPC分类号： B43K19/02 , C09D13/00 , B43K19/18

摘要： A non-baked pencil lead containing a water-soluble polymer, a crosslinking agent, and a powder, in which the water-soluble polymer is selected from a group consisting of a carboxymethyl cellulose salt, starch, polyvinyl alcohol, and xanthan gum, and the crosslinking agent is selected from a group consisting of an acid, polyamide epoxy, polyacrylamide, titanium alkoxide, and glyoxal.