公开(公告)号：US10221312B2

公开(公告)日：2019-03-05

申请号：US15547904

申请日：2016-03-02

Applicant: UNITIKA LTD.

Inventor： Miho Nakai ,  Shohei Kumazawa ,  Kenji Ikemoto

IPC: C08L77/02 ,  C08L1/02 ,  C08K7/02

Abstract: Provided is a polyamide resin composition including 0.01 to 50 parts by mass of cellulose fiber in relation to 100 parts by mass of a polyamide resin, having a relative viscosity of 2.3 or more, and having an L-value, an a-value and a b-value in an Lab color space of 20 or more, 10 or less and 20 or less, respectively. The aforementioned polyamide resin composition is obtained by subjecting a polyamide resin composition having a relative viscosity of 2.2 or less to a solid phase polymerization.

公开(公告)号：US20180022920A1

公开(公告)日：2018-01-25

申请号：US15547904

申请日：2016-03-02

Applicant: UNITIKA LTD.

Inventor： Miho Nakai ,  Shohei Kumazawa ,  Kenji Ikemoto

IPC: C08L77/02

CPC classification number: C08L77/02 ,  C08K7/02 ,  C08L1/02 ,  C08L2205/16 ,  C08L2314/00

Abstract: Provided is a polyamide resin composition including 0.01 to 50 parts by mass of cellulose fiber in relation to 100 parts by mass of a polyamide resin, having a relative viscosity of 2.3 or more, and having an L-value, an a-value and a b-value in an Lab color space of 20 or more, 10 or less and 20 or less, respectively. The aforementioned polyamide resin composition is obtained by subjecting a polyamide resin composition having a relative viscosity of 2.2 or less to a solid phase polymerization.

公开(公告)号：US11608427B2

公开(公告)日：2023-03-21

申请号：US16757581

申请日：2018-10-29

Applicant: UNITIKA LTD.

Inventor： Miho Nakai ,  Azusa Usui ,  Shohei Kumazawa ,  Shota Noguchi ,  Fumio Matsuoka ,  Hiroo Kamikawa

IPC: C08K7/02 ,  B33Y70/00 ,  B29C64/314 ,  B33Y40/10 ,  C08L77/00 ,  B33Y80/00 ,  B29K77/00 ,  B29K201/00

Abstract: The present invention provides a resin composition having high heat-resisting properties, with which a shaping can be performed in accordance with designed sizes using a fused deposition modeling method-3D printer, and from which a shaped object having a small warpage and small changes in sizes due to water can be obtained. The present invention relates to a resin composition for a shaping material of a fused deposition modeling method-3D printer, comprising cellulose fibers in a polyamide.