US2011130515A1PendingUtilityA1

Polymer powder comprising a copolymer, use in a shaping method which uses a non-focused application of energy and moulded body that is produced from said polymer powder

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Assignee: DEGUSSAPriority: Feb 27, 2004Filed: Feb 10, 2011Published: Jun 2, 2011
Est. expiryFeb 27, 2024(expired)· nominal 20-yr term from priority
Inventors:Sylvia MonsheimerFranz-Erich BaumannMaik GrebeEva Von Der Bey
B29C 64/165C08L 77/06C08J 5/00C08L 67/02C08L 95/005C08L 77/02B29C 64/153C08L 2666/66C08J 3/12B33Y 70/10
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Claims

Abstract

A molding produced by a layer-by layer process of selectively melting regions of a respective pulverulent layer via unfocused introduction of electromagnetic energy, using a polymer powder, where the powder has at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min.

Claims

exact text as granted — not AI-modified
1 : A molding produced by a layer-by layer process, comprising selectively melting regions of a respective pulverulent layer via unfocused introduction of electromagnetic energy, using a polymer powder, wherein the powder comprises at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min. 
     
     
         2 : The molding as claimed in  claim 1 , wherein the powder comprises at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 10 to 1 g/10 min. 
     
     
         3 : The molding as claimed in  claim 1 , wherein the powder comprises at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min, the selectivity being achieved via application of susceptors or of absorbers, or via masks. 
     
     
         4 : The molding as claimed in  claim 1 , wherein the powder comprises at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 10 to 1 g/10 min, the selectivity being achieved via application of susceptors or of absorbers, or via masks. 
     
     
         5 : The molding as claimed in  claim 1 , wherein the powder comprises at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min, the selectivity being achieved via application of inhibitors. 
     
     
         6 : The molding as claimed in  claim 1 , wherein the powder comprises at least one copolyester. 
     
     
         7 : The molding as claimed in  claim 6 , wherein the powder comprises at least one copolyester containing at least one of the monomer units from the group of adipic acid, isophthalic acid, dimethyl phthalate, 1,4-butanediol, 1,6-hexanediol, and polyethylene glycol. 
     
     
         8 : The molding as claimed in  claim 1 , wherein the powder comprises at least one copolyamide. 
     
     
         9 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide containing at least one of the units selected from the group of the lactams, the diamine/dicarboxylic acid salts, and/or the aminocarboxylic acids. 
     
     
         10 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide containing at least one of the units selected from the group of laurolactam, caprolactam, aminoundecanoic acid, and also containing approximately equimolar amounts of the dicarboxylic acids adipic acid, sorbic acid, azelaic acid, sebacic acid, dodecanedioic acid, brassylic acid, tetradecanedioic acid, pentadecanedioic acid, octadecanedioic acid; terephthalic acid, isophthalic acid, and of the diamines hexamethylenediamine, 2-methylpentamethylenediamine, 2,2,4-trimethylhexamethylenediamine, 2,4,4-trimethylhexamethylenediamine, isophoronediamine, piperazine, bis(4-aminocyclohexyl)methane, or of the nylon salts formed therefrom. 
     
     
         11 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide containing caprolactam, laurolactam, and AH salt. 
     
     
         12 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide containing caprolactam, laurolactam, and DH salt. 
     
     
         13 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide containing caprolactam and laurolactam. 
     
     
         14 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide, the DIN 53727 relative solution viscosity in m-cresol being from 1.55 to 1.9. 
     
     
         15 : The molding as claimed in  claim 8 , wherein the powder comprises at least one copolyamide, the DIN 53727 relative solution viscosity in m-cresol being from 1.6 to 1.7. 
     
     
         16 : The molding as claimed in  claim 1 , further comprising auxiliaries and/or filler and/or pigments. 
     
     
         17 : The molding as claimed in  claim 16 , comprising flow aids as auxiliary. 
     
     
         18 : The molding as claimed in  claim 16 , comprising glass particles as filler. 
     
     
         19 : The molding as claimed in  claim 16 , comprising metal soaps as auxiliary. 
     
     
         20 : The molding as claimed in  claim 1 , comprising at least one copolyester. 
     
     
         21 : The molding as claimed in  claim 1 , comprising at least one copolyester containing at least one of the monomer units selected from the group of adipic acid, isophthalic acid, dimethyl phthalate, 1,4-butanediol, 1,5-hexanediol, polyethylene glycol. 
     
     
         22 : The molding as claimed in  claim 1 , comprising at least one copolyamide. 
     
     
         23 : The molding as claimed in  claim 1 , comprising at least one copolyamide containing at least one of the units selected from the group of the lactams, the diamine/dicarboxylic acid salts, and/or the aminocarboxylic acids. 
     
     
         24 : The molding as claimed in  claim 1 , comprising at least one copolyamide containing at least one of the units from the group of laurolactam, caprolactam, aminoundecanoic acid, and also containing approximately equimolar amounts of the dicarboxylic acids adipic acid, sorbic acid, azelaic acid, sebacic acid, dodecanedioic acid, brassylic acid, tetradeoanedioic acid, pentadecanedioic acid, octadecanedioic acid, terephthalic acid, isophthalic acid, and of the diamines hexamethylenediamine, 2-methylpentamethylenediamine, 2,2,4-trimethylhexamethylenediamine, 2,4,4-trimethylhexamethylenediamine, isophoronediamine, piperazine, bis(4-aminocyclohexyl)methane, or of the nylon salts formed therefrom. 
     
     
         25 : The molding as claimed in  claim 1 , comprising at least one copolyamide containing caprolactam, laurolactam, and AH salt. 
     
     
         26 : The molding as claimed in  claim 1 , comprising at least one copolyamide containing caprolactam, laurolactam, and DH salt. 
     
     
         27 : The molding as claimed in  claim 1 , comprising at least one copolyamide containing caprolactam and laurolactam. 
     
     
         28 : The molding as claimed in  claim 1 , comprising at least one copolyamide, the DIN 53727 relative solution viscosity in m-cresol being from 1.55 to 1.9. 
     
     
         29 : The molding as claimed in  claim 1 , comprising at least one copolyamide, the DIN 53727 relative solution viscosity in m-cresol being from 1.6 to 1.7. 
     
     
         30 : The molding as claimed in  claim 1 , further comprising auxiliaries and/or filler and/or pigments. 
     
     
         31 : The molding as claimed in  claim 30 , comprising flow aids as auxiliary. 
     
     
         32 : The molding as claimed in  claim 30 , comprising glass particles as filler. 
     
     
         33 : The molding as claimed in  claim 30 , comprising metal soaps as auxiliary.

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