公开(公告)号：US20230287626A1

公开(公告)日：2023-09-14

申请号：US18001247

申请日：2021-06-10

Applicant: NIPPON PAPER INDUSTRIES CO., LTD. ,  KANEKA CORPORATION

Inventor： Hirosuke TSUNODA ,  Yoshio YOSHIDA ,  Koji KUTSUWA ,  Tetsuo OKURA ,  Yasunori OKADA ,  Asuka FUKUTOME

IPC: D21H19/22 ,  D21H19/58 ,  D21H19/60 ,  D21H21/16

CPC classification number: D21H19/22 ,  D21H19/58 ,  D21H19/60 ,  D21H21/16

Abstract: An object of the present invention is to provide a coated paper that includes a coating layer containing poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) with few coating defects. As a solution, the present invention provides a coated paper including a coating layer containing poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) and an adhesive, on at least one side of a paper substrate. A solid content weight ratio of the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) to the adhesive in the coating layer is 99.9/0.1 to 60.0/40.0.

公开(公告)号：US20230332356A1

公开(公告)日：2023-10-19

申请号：US18245596

申请日：2021-09-09

Applicant: KANEKA CORPORATION

Inventor： Asuka FUKUTOME ,  Yasunori OKADA ,  Tetsuo OKURA ,  Kensuke MURASHIMA

IPC: D21H19/12 ,  D21H25/06

CPC classification number: D21H19/12 ,  D21H25/06

Abstract: A laminated article includes a base layer and a coating layer disposed over at least one side of the base layer. The coating layer contains a poly(3-hydroxybutyrate) resin. In a crystalline melting curve obtained by differential scanning calorimetry of the coating layer, the coating layer has at least one peak top temperature (Tma) in the range of 100 to 150° C. and at least one peak top temperature (Tmb) in the range of 150 to 170° C., and the difference between the temperatures Tma and Tmb is 10° C. or more.

公开(公告)号：US20220267547A1

公开(公告)日：2022-08-25

申请号：US17627356

申请日：2020-07-10

Applicant: KANEKA CORPORATION

Inventor： Asuka FUKUTOME ,  Tetsuo OKURA ,  Shunsuke SATO

IPC: B29C71/02 ,  C08G63/06 ,  B29B11/10

Abstract: A method for producing a poly(3-hydroxybutyrate) resin-containing composition for melt processing includes: heating a material containing a poly(3-hydroxybutyrate) resin to a temperature equal to or higher than a melting point peak temperature in differential scanning calorimetry analysis of the poly(3-hydroxybutyrate) resin and equal to or lower than a melting point peak end temperature in the differential scanning calorimetry analysis of the poly(3-hydroxybutyrate) resin, wherein the difference between the melting point peak temperature and the melting point peak end temperature of the poly(3-hydroxybutyrate) resin is 10° C. or more; and extruding the heated material to obtain a composition for melt processing that has a new crystallization peak at a temperature higher than the melting point peak temperature.