公开(公告)号：US10703873B2

公开(公告)日：2020-07-07

申请号：US15512605

申请日：2015-09-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jee Sung Yi ,  Hyun Chul Lee ,  Joon Young Yoon ,  Eun Jeong Cho ,  Chung Seock Kang

IPC: B32B27/12 ,  C08J5/24 ,  C08K3/00 ,  H01M8/0228 ,  C08J5/10 ,  C08K3/04 ,  B32B37/18 ,  B32B27/06 ,  B32B37/06 ,  B32B37/10 ,  C08J5/04 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0206 ,  C08K3/08

Abstract: An intermediate material of a thermoplastic prepreg for a fuel cell separation plate comprises a hydrophobic thermoplastic resin film and a fiber base. The hydrophobic thermoplastic resin film has a degree of crystallization of 1 to 20%, a thickness of 3 to 50 μm, and (iii) a content of an electroconductive material of 1 to 20 wt. %. The film is laminated on at least one surface of the fiber base. The thermoplastic prepreg for a fuel cell separation plate is manufactured by pressurizing the thermoplastic prepreg intermediate material at a temperature higher than the melting point of the hydrophobic thermoplastic resin film. A fuel cell separation membrane manufactured using the thermoplastic prepreg intermediate material and thermoplastic prepreg is thin and light-weight, and have a good durability.

公开(公告)号：US10189217B2

公开(公告)日：2019-01-29

申请号：US15125684

申请日：2015-04-07

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jee Sung Yi ,  Eun Jeong Cho ,  Joon Young Yoon ,  Hyun Chul Lee ,  Chung Seock Kang

IPC: C08J5/24 ,  B29B15/12 ,  B29C70/50 ,  B29K101/12 ,  B29K105/08

Abstract: A method for preparing a high quality thermoplastic prepreg, includes: laminating a thermoplastic resin film having a crystallization degree in a range of 1 to 20% on at least one surface of a matrix fiber; and heating the laminate to a higher temperature than a melting point of the film, then, pressing the same. The method uniformly impregnates a matrix fiber with a thermoplastic resin, has a short curing cycle in the formation, and involves no random modification in alignment of fibers in the matrix fiber due to a low crystallization degree of the impregnated thermoplastic resin, thereby increasing rigidity of a formed product and enabling reduction of thickness. Thus produced prepreg has a low weight variation per unit area.