公开(公告)号：US20240101792A1

公开(公告)日：2024-03-28

申请号：US18473335

申请日：2023-09-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Shinobu YOKOKAWA ,  Chieko NAKAJIMA

IPC: C08L1/02

CPC classification number: C08L1/02 ,  C08L2201/02 ,  C08L2201/06 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/16

Abstract: A molding material is a molding material including linear alkyl-based polyester, highly polar polyester, and cellulose fibers, in which a content of the linear alkyl-based polyester is greater than a content of the highly polar polyester, and a total content of the linear alkyl-based polyester and the highly polar polyester is less than or equal to a content of the cellulose fibers.

公开(公告)号：US20250002713A1

公开(公告)日：2025-01-02

申请号：US18757700

申请日：2024-06-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Takashi HIRAIWA ,  Chieko NAKAJIMA ,  Kiyoaki SAKAGUCHI

IPC: C08L67/04 ,  C08K5/53 ,  C08K5/5399 ,  C08L1/02

Abstract: A molding material according to one embodiment of the present disclosure is a molding material containing cellulose fibers and a resin, and the resin includes a saturated aliphatic polyester and a highly polar polyester. In a molecular weight distribution curve by a GPC method, the resin has a maximum value 2 at a weight average molecular weight of 100,000 or more and a maximum value 1 at a weight average molecular weight less than that at the maximum value 2, and an area value in the maximum value 2 is smaller than an area value in the maximum value 1.

公开(公告)号：US20240199856A1

公开(公告)日：2024-06-20

申请号：US18545064

申请日：2023-12-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Shinobu YOKOKAWA ,  Chieko NAKAJIMA ,  Kiyoaki SAKAGUCHI

IPC: C08L1/02

CPC classification number: C08L1/02 ,  C08L2205/03 ,  C08L2205/16

Abstract: A molding material contains a polyester-based elastomer, a highly polar polyester, and cellulose fibers, a content of the polyester-based elastomer with respect to a content of the highly polar polyester is 25 percent by mass or more, and a total content of the polyester-based elastomer and the highly polar polyester is equal to or lower than a content of the cellulose fibers.

公开(公告)号：US20240101813A1

公开(公告)日：2024-03-28

申请号：US18473339

申请日：2023-09-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Shinobu YOKOKAWA ,  Chieko NAKAJIMA

IPC: C08L67/02 ,  B29C45/00 ,  C08K5/5399 ,  C08K7/02 ,  C08L1/02 ,  C08L67/04

CPC classification number: C08L67/02 ,  B29C45/0001 ,  C08K5/5399 ,  C08K7/02 ,  C08L1/02 ,  C08L67/04 ,  B29K2067/046 ,  C08K2201/004 ,  C08L2201/02 ,  C08L2203/30 ,  C08L2205/025

Abstract: A molding material is a molding material including linear alkyl-based polyester, highly polar polyester, cellulose fibers, and a flame retardant, in which a total content of the linear alkyl-based polyester and the highly polar polyester is less than or equal to a content of the cellulose fibers, the flame retardant has a phosphazene skeleton or a phosphoric acid ester skeleton in a molecular structure, and a content of the flame retardant is 1% by mass or greater and 10% by mass or less with respect to the total content of the linear alkyl-based polyester, the highly polar polyester, and the cellulose fibers.

公开(公告)号：US20250002712A1

公开(公告)日：2025-01-02

申请号：US18756155

申请日：2024-06-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Takashi HIRAIWA ,  Chieko NAKAJIMA ,  Kiyoaki SAKAGUCHI

IPC: C08L67/04 ,  C08L1/02

Abstract: A molding material according to one embodiment of the present disclosure contains cellulose fibers and a resin, and the resin includes a polyester-based elastomer and a highly polar polyester. In a molecular weight distribution curve by a GPC method, the resin has a maximum value 2 at a weight average molecular weight of 100,000 or more and a maximum value 1 at a weight average molecular weight less than that at the maximum value 2, and an area value in the maximum value 2 is smaller than an area value in the maximum value 1.

公开(公告)号：US20240199855A1

公开(公告)日：2024-06-20

申请号：US18544541

申请日：2023-12-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Shinobu YOKOKAWA ,  Chieko NAKAJIMA ,  Kiyoaki SAKAGUCHI

IPC: C08L1/02

CPC classification number: C08L1/02 ,  C08L2205/03 ,  C08L2205/16 ,  C08L2207/04

Abstract: A molding material contains a polyester-based elastomer, a highly polar polyester, cellulose fibers, and a flame retardant, a total content of the polyester-based elastomer and the highly polar polyester is equal to or lower than a content of the cellulose fibers, the flame retardant has a phosphazene skeleton or a phosphate skeleton in its molecular structure, and a content of the flame retardant with respect to a total content of the polyester-based elastomer, the highly polar polyester, and the cellulose fibers is 1 to 10 percent by mass.

公开(公告)号：US20240101793A1

公开(公告)日：2024-03-28

申请号：US18473337

申请日：2023-09-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomohiro FUJITA ,  Shinobu YOKOKAWA ,  Chieko NAKAJIMA

IPC: C08L1/02

CPC classification number: C08L1/02 ,  C08L2205/03 ,  C08L2205/16

Abstract: A molding material includes a resin and cellulose fibers, in which the content of the cellulose fibers is 50% by mass or more based on the total mass of the molding material, the resin has a Hansen solubility parameter HSP of 20.0 or more and 32.0 or less in total, a hydrogen bonding term δH of 4.0 or more and 15.0 or less in total, and a polarity term δP of 8.5 or more and 17.0 or less in total, and when a molded body obtained by using the molding material is fractured, the resin present on the cellulose fibers accounts for 30% or more of an area of 1 mm square of the fracture surface of the molded body.