Resin composition and filament-like molded body formed from same

Patent metadata

Field	Value
Publication number	US-2021002478-A1
Application number	US-201916977191-A
Country	US
Kind code	A1
Filing date	Mar 27, 2019
Priority date	Mar 27, 2018
Publication date	Jan 7, 2021
Grant date	—

Abstract

Provided is a resin composition formodeling materials for fused deposition modeling 3D printers, the resin composition containing a polyarylate resin (A) and a polyester resin (B), containing the component (A) and a polyamide resin (C), or containing tape component (A) and a polycarbonate resin (D).

First claim

1 . A resin composition for modeling materials for fused deposition modeling 3D printers, the resin composition containing a polyarylate resin (A) and a polyester resin (B), wherein a mass ratio of the polyarylate resin (A) to the polyester resin (B) ((A)/(B)) is 70/30 to 40/60; or containing the polyarylate resin (A) and a polyamide resin (C), wherein a mass ratio of the polyarylate resin (A) to the polyamide resin (C) ((A)/(C)) is 60/40 to 40/60; or containing the polyarylate resin (A) and a polycarbonate resin (D), wherein a mass ratio of the polyarylate resin (A) to the polycarbonate resin (D) ((A)/(D)) is 60/40 to 40/60.

2 . The resin composition according to claim 1 , wherein the polyarylate resin (A) is a resin mainly comprising an aromatic dicarboxylic acid residue and a dihydric phenol residue.

3 . The resin composition according to claim 2 , wherein the dihydric phenol residue is a residue represented by the following chemical formula (1):

wherein R 1 and R 2 each independently represent a hydrocarbon group having 1 to 6 carbon atoms, an alkyl halide group or a halogen atom; p and q each independently represent an integer of 0 to 4; and X represents a hydrocarbon group or an alkyl halide group.

4 . The resin composition according to claim 1 , wherein the resin composition further contains an alkali metal salt or alkaline earth metal salt (X) and a phosphorus compound (Y) together with the polyester resin (B).

5 . The resin composition according to claim 1 , wherein the resin composition further contains spherical silica (Z) together with the polycarbonate resin (D).

6 . The resin composition according to claim 1 , wherein the resin composition further contains a filler (E).

7 . A filament-like molded body being a molded body for modeling materials for fused deposition modeling 3D printers, comprising a resin composition according to claim 1 and having a diameter of 0.2 to 5.0 mm.

Assignees

• Unitika Ltd

Inventors

• Usui Azusa
• Kamikawa Hiroo
• Matsuoka Fumio
• KUMAZAWA Shohei

Classifications

• B33Y70/10

  Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title

• D01F6/52

  of polymers of unsaturated carboxylic acids or unsaturated esters · CPC title

• D01F6/92

  of polyesters · CPC title

• D01F6/90

  of polyamides · CPC title

• D01F6/94

  of other polycondensation products · CPC title