公开(公告)号：US20210087341A1

公开(公告)日：2021-03-25

申请号：US16630787

申请日：2018-07-13

Applicant: Kao Corporation

Inventor： Hiroki SAWADA ,  Tadanori YOSHIMURA ,  Tomoya TSUBOI ,  Jouji HIRAI ,  Akihiro ONOUE

IPC: C08G75/24 ,  C09D11/104 ,  B33Y10/00 ,  B29C64/118 ,  B29C64/40 ,  B33Y70/00

Abstract: A method for manufacturing a thermoplastic resin composition enabling easy control of the weight average molecular weight of a thermoplastic resin used in a soluble three-dimensional modeling support material, the support material having sufficient strength even when used in the manufacture of a three-dimensional object by an FDM system 3D printer, being less colored with excellent appearance quality, and having a high dissolution speed in neutral water and quickly removable from a precursor of the three-dimensional object without using a strong alkaline aqueous solution; and the thermoplastic resin having dicarboxylic acid monomer units derived from a dicarboxylic acid component and having a proportion of an aromatic dicarboxylic acid monomer unit derived from a sulfonic acid group and/or sulfonate group-containing aromatic dicarboxylic acid component in the dicarboxylic acid monomer units of 10 mol % or more; the method including mixing an organic salt compound represented by formula (I): (R1—SO3−)nXn+  (I).

公开(公告)号：US20180009160A1

公开(公告)日：2018-01-11

申请号：US15549056

申请日：2016-02-04

Applicant: KAO CORPORATION

Inventor： Hiroki SAWADA ,  Tadanori YOSHIMURA ,  Jouji HIRAI ,  Takuma KIMURA

IPC: B29C64/106 ,  C08G63/688 ,  B32B27/28 ,  B32B33/00

Abstract: A soluble material for three-dimensional modeling, which is used as a raw material of a support material for supporting a three-dimensional object when the three-dimensional object is produced, using a 3D printer of a FDM system, includes a polyester resin including one or more aromatic dicarboxylic acid monomer units A with a sulfonate group, one or more dicarboxylic acid monomer units B without a sulfonate group, and one or more diol monomer units. The proportion of the aromatic dicarboxylic acid monomer unit(s) A in the total of all dicarboxylic acid monomer units is from 10 to 70 mol %. The soluble material has hygroscopicity resistance while the material is large in dissolution rate into any neutral water and removable speedily from a precursor of the three-dimensional object without using any aqueous strong alkaline solution.

公开(公告)号：US20200157276A1

公开(公告)日：2020-05-21

申请号：US16323354

申请日：2017-07-25

Applicant: KAO CORPORATION

Inventor： Tadanori YOSHIMURA ,  Hiroki SAWADA ,  Akihiro ONOUE

IPC: C08G63/688 ,  B33Y70/00 ,  B29C64/40 ,  C08G69/42 ,  B33Y40/00 ,  B33Y10/00 ,  B29C64/118

Abstract: The present invention is a composition of an agent for treating a precursor of a three-dimensional object for removing a support material from a precursor of the three-dimensional object containing a three-dimensional object and the support material, the composition containing water and a water-soluble compound having a solubility parameter (SP value) calculated by using the Fedors' method of 8 (cal/cm3)1/2 to 13 (cal/cm3)1/2. The present invention can provide a composition of an agent for treating a precursor of a three-dimensional object that is capable of removing the support material quickly and a method for manufacturing a three-dimensional object using the composition of an agent for treating a precursor of a three-dimensional object by a fused deposition modeling system.

公开(公告)号：US20200055232A1

公开(公告)日：2020-02-20

申请号：US16482169

申请日：2018-01-25

Applicant: KAO CORPORATION

Inventor： Jouji HIRAI ,  Tadanori YOSHIMURA ,  Tomoya TSUBOI ,  Hiroki SAWADA

IPC: B29C64/118 ,  B29C64/40

Abstract: The present invention is a soluble material for three-dimensional modeling that is used as a material of a support material for supporting a three-dimensional object when the three-dimensional object is manufactured by a 3D printer of a fused deposition modeling system and that contains a thermoplastic resin having a hydrophilic group and an organic salt compound represented by a general formula (I) below: (R1-SO3−)nXn+ (I). According to the present invention, it is possible to provide a soluble material for three-dimensional modeling that is used for a support material and that is capable of suppressing the degradation of the modeling accuracy of a three-dimensional object when the three-dimensional object is manufactured by a 3D printer of a fused deposition modeling system, and has a high rate of dissolution to neutral water to be removable speedily from a precursor of the three-dimensional object without use of a strong alkaline aqueous solution.