# US 2019/0168447 A1 · Method for producing fusible material for three-dimensional molding > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168447 A1 - Document ID: US20190168447A1 - Status: Published application - Kind: A1 - Application number: 16/323,453 - Filed: 2017-07-25 - Published: 2019-06-06 - Earliest claimed: 2016-08-05 - Assignees: Kao Corporation - Applicants: Kao Corporation - Inventors: Tomoya TSUBOI; Jouji HIRAI; Takuma KIMURA; Tadanori YOSHIMURA; Akihiro ONOUE - Web page: https://patentgrep.com/patent/US20190168447A1 ## CPC - B29C 64/118: using filamentary material being melted, e.g. fused deposition modelling [FDM] - B29B 7/007: {for continuous mixing} - B29B 7/489: {Screws (B29B7/482 takes precedence)} - B29C 64/40: Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof - B33Y 10/00: Processes of additive manufacturing - B33Y 40/10: Pre-treatment - B33Y 40/20: Post-treatment, e.g. curing, coating or polishing - B33Y 70/00: Materials specially adapted for additive manufacturing - C08G 63/6886: {Dicarboxylic acids and dihydroxy compounds} - C08J 3/20: Compounding polymers with additives, e.g. colouring - C08J 3/201: {Pre-melted polymers} - C08L 33/06: of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical - C08L 77/06: Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence) - C08L 101/06: containing oxygen atoms {(C08L101/025 takes precedence)} - B29B 7/48: with intermeshing devices, e.g. screws - C08G 69/265: {from at least two different diamines or at least two different dicarboxylic acids} - C08G 69/32: from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound - C08G 69/42: Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen (C08G69/12, C08G69/32 take precedence) - C08J 2367/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) - C08J 2400/26: Elastomers - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The method for manufacturing a soluble material for three-dimensional modeling that is used as a material of a support material that supports a three-dimensional object when manufacturing the three-dimensional object with a 3D printer of a fused deposition modeling system, comprising a kneading step of kneading raw materials of the soluble material for three-dimensional modeling by a twin screw extruder having a screw configuration in which a ratio of a total length K of kneading discs to a total length L of an effective screw is 0.2025. ### Claim 4 (depends on 1) The method for manufacturing a soluble material for three-dimensional modeling according to claim 1, wherein a glass transition temperature Tg of the base polymer is 50° C. to 250° C. ### Claim 5 (depends on 1) The method for manufacturing a soluble material for three-dimensional modeling according to claim 1, wherein the base polymer contains a resin having a hydrophilic group. ### Claim 6 (depends on 1) The method for manufacturing a soluble material for three-dimensional modeling according to claim 1, wherein the base polymer has a polyester resin having a hydrophilic group and/or a polyamide resin having a hydrophilic group. ### Claim 7 (depends on 6) The method for manufacturing a soluble material for three-dimensional modeling according to claim 6, wherein the polyester resin has a hydrophilic monomer unit A1 having a hydrophilic group, a hydrophobic dicarboxylic acid monomer unit B1, and a diol monomer unit; and a ratio of the hydrophilic monomer unit A1 to a total monomer units in the polyester resin is 10 mol % to 70 mol %. ### Claim 8 (depends on 6) The method for manufacturing a soluble material for three-dimensional modeling according to claim 6, wherein the polyamide resin has a hydrophilic monomer unit A2 having a hydrophilic group, a hydrophobic dicarboxylic acid monomer unit B2, and a hydrophobic diamine monomer unit; and a ratio of the hydrophilic monomer unit A2 to a total monomer units in the polyamide resin is 2.5 mol % to 40 mol %. ### Claim 9 (depends on 1) The method for manufacturing a soluble material for three-dimensional modeling according to claim 1, wherein the raw materials of the soluble material for three-dimensional modeling contain a base polymer, an elastomer, and a compatibilizer. ### Claim 10 (depends on 9) The method for manufacturing a soluble material for three-dimensional modeling according to claim 9, wherein the elastomer is an acrylic elastomer resin. ### Claim 11 (depends on 9) The method for manufacturing a soluble material for three-dimensional modeling according to claim 9, wherein the compatibilizer has a reactive functional group and the reactive functional group is an epoxy group. ### Claim 12 (depends on 1) A soluble material for three-dimensional modeling manufactured by the method for manufacturing the soluble material for three-dimensional modeling according to claim 1. ### Claim 13 (depends on 12) The soluble material for three-dimensional modeling according to claim 12, wherein the soluble material for three-dimensional modeling is a filament. ### Claim 14 (depends on 12) The soluble material for three-dimensional modeling according to claim 12, wherein the diameter of the filament is 0.5 mm or more, and 3.0 mm or less. ### Claim 15 (depends on 1) A support material that supports a three-dimensional object when manufacturing the three-dimensional object by a fused deposition modeling type 3D printer, wherein the material of the support material is the soluble material for three-dimensional modeling manufactured by the method for manufacturing a three-dimensional object according to claim 1.