Thermoplastic polyurethane molding compound for manufacturing grained, sintered, plastic sheet

A thermoplastic sinterable powder for manufacturing grained, sintered plastic sheet is described, which is comprised 100 party by weight of an exclusively linear, aliphatic polyol mixture composed of 60 to 80 parts by weight of polycarbonate diol, having an MW of 2000 and a hydroxyl value of 56 base...

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Bibliographische Detailangaben
Hauptverfasser:	DABISCH, THOMAS, M+E,UML U+EE HLFELD, HORST, M+E,UML U+EE LLER-BROLL, GERHARD
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A thermoplastic sinterable powder for manufacturing grained, sintered plastic sheet is described, which is comprised 100 party by weight of an exclusively linear, aliphatic polyol mixture composed of 60 to 80 parts by weight of polycarbonate diol, having an MW of 2000 and a hydroxyl value of 56 based on adipic acid, hexane diol and neopentyl glycol, having an MW of 2000 and a hydroxyl value of 56. Also included is 1,6-hexamethylene diisocyanate in an equivalence ratio of about 2.8:1.0 to 4.2:1.0, with respect to the total polyol, with the exception of 1,4-butane diol which is added as a chain lengthener. The coefficient of the molding compound, calculated from the quotient of the equivalence ratios of the isocyanate groups multiplied by 100 and the sum of the hydroxyl groups of polyols and chain lengtheners is in the range of about 97 to 99.