Filament for three-dimensional modeling, three-dimensional modeled article, three-dimensional modeling method, and three-dimensional modeling apparatus

Patent metadata

Field	Value
Publication number	US-11413810-B2
Application number	US-202016984557-A
Country	US
Kind code	B2
Filing date	Aug 4, 2020
Priority date	Mar 26, 2020
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

A filament for three-dimensional modeling includes a first resin; a second resin; a fiber; and a compatibilizing agent, wherein a fiber coated with the second resin is dispersed in a matrix formed of the first resin, the compatibilizing agent is interposed between the first resin and the second resin, a thickness of a coating layer formed of the second resin is 0.1 μm or more and 5 μm or less, and a content rate of the second resin with respect to a total weight of the first resin, the second resin, and the compatibilizing agent is 30% by weight or more and 50% by weight or less, or 5% by weight or more and 15% by weight or less.

First claim

What is claimed is:

1. A filament for three-dimensional modeling, comprising
a first resin;
a second resin;
a fiber; and
a compatibilizing agent,
wherein a fiber coated with the second resin is dispersed in a matrix formed of the first resin,
the compatibilizing agent is interposed between the first resin and the second resin,
a thickness of a coating layer formed of the second resin is 0.1 μm or more and 5 μm or less, and
a content rate of the second resin with respect to a total weight of the first resin, the second resin, and the compatibilizing agent is 30% by weight or more and 50% by weight or less, or 5% by weight or more and 15% by weight or less.

2. The filament for three-dimensional modeling according to claim 1 ,
wherein a coating rate of the fiber with the second resin is 70% or more.

3. The filament for three-dimensional modeling according to claim 2 ,
wherein the coating rate of the fiber with the second resin is 80% or more.

4. The filament for three-dimensional modeling according to claim 1 ,
wherein a content rate of the compatibilizing agent with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 0.1% by weight or more and 10% by weight or less.

5. The filament for three-dimensional modeling according to claim 2 ,
wherein a content rate of the compatibilizing agent with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 0.1% by weight or more and 10% by weight or less.

6. The filament for three-dimensional modeling according to claim 3 ,
wherein a content rate of the compatibilizing agent with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 0.1% by weight or more and 10% by weight or less.

7. The filament for three-dimensional modeling according to claim 4 ,
wherein the content rate of the compatibilizing agent with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 2% by weight or more and 10% by weight or less.

8. The filament for three-dimensional modeling according to claim 5 ,
wherein the content rate of the compatibilizing agent with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 2% by weight or more and 10% by weight or less.

9. The filament for three-dimensional modeling according to claim 6 ,
wherein the content rate of the compatibilizing agent with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 2% by weight or more and 10% by weight or less.

10. The filament for three-dimensional modeling according to claim 1 ,
wherein the content rate of the second resin with respect to the total weight of the first resin, the second resin, and the compatibilizing agent is 35% by weight or more and 45% by weight or less.

11. The filament for three-dimensional modeling according to claim 1 ,
wherein a content rate of the fiber with respect to a total weight of the filament for three-dimensional modeling is 10% by weight or more and 65% by weight or less.

12. The filament for three-dimensional modeling according to claim 1 ,
wherein the first resin is formed of a polyolefin, and the second resin is a resin selected from the group consisting of a resin having at least one of an amide bond and an imide bond, a resin having an ester bond, and a resin having a bonding group including sulfur.

13. The filament for three-dimensional modeling according to claim 1 ,
wherein the compatibilizing agent is at least one kind selected from the group consisting of a polyolefin having a modified branched chain and a polyolefin having a modified main chain terminal.

14. The filament for three-dimensional modeling according to claim 1 ,
wherein the fiber is a continuous fiber.

15. A three-dimensional modeled article, comprising:
a first resin;
a second resin;
a fiber; and
a compatibilizing agent,
wherein a fiber coated with the second resin is dispersed in a matrix formed of the first resin,
the compatibilizing agent is interposed between the first resin and the second resin,
a thickness of a coating layer formed of the second resin is 0.1 μm or more and 5 μm or less, and
a content rate of the second resin with respect to a total weight of the first resin, the second resin, and the compatibilizing agent is 30% by weight or more and 50% by weight or less, or 5% by weight or more and 15% by weight or less.

16. A three-dimensional modeling method, comprising:
heating the filament for three-dimensional modeling according to claim 1 ; and
discharging the heated filament for three-dimensional modeling onto a discharge target body to form a laminate of the filament for three-dimensional modeling.

Assignees

• Fujifilm Business Innovation Corp

Inventors

• Nakayama Daisuke
• Katsuta Nobuhiro
• Suzuki Wataru
• Minabe Jiro
• Yamada Taichi

Classifications

• B29C64/118 Primary

  using filamentary material being melted, e.g. fused deposition modelling [FDM] · CPC title

• B29C64/205

  Means for applying layers · CPC title

• B29K2995/0097

  Thickness · CPC title

• D01F1/10

  Other agents for modifying properties · CPC title

• D01F11/14

  with organic compounds, e.g. macromolecular compounds · CPC title