Self-reinforcing thermoplastically-deformable semi-finished product, intended in particular for the production of sanitary items, method for producing thereof and related manufactured moldings

A self-hardening formable semifinished product (SFP), comprising a single layer plate of filled polymethyl methacrylate, where the SFP plate has a mean filler content of F m wt.% relative to its total weight, an upper side O and an underside U, where the upper side is not enriched and the underside...

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Bibliographische Detailangaben
Hauptverfasser:	SCHOLA EGBERT, SCHWENNINGER ROBERT, MOLNAR GERALD
Format:	Patent
Sprache:	cze ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	A self-hardening formable semifinished product (SFP), comprising a single layer plate of filled polymethyl methacrylate, where the SFP plate has a mean filler content of F m wt.% relative to its total weight, an upper side O and an underside U, where the upper side is not enriched and the underside is enriched in filler relative to F m. Independent claims are included for: (1) production of the SFP by polymerization of a methyl acrylate system by casting, preferably using a chamber process or a modification of this, where the system contains wt.%):(A) (a) (meth)acrylate (50-100, a1) methyl(meth) acrylate (0-99), (a2) 2-4C (meth) acrylate, (a3) greater than 5C (meth)acrylate, (a4) multivalent (sic) (meth)acrylate (0.01-50), (b) comonomer (0-50), (b1) vinyl aromatics (0-50), (b2) vinyl ester (0-50), where components a to b are so selected that they comprise 100 wt.% of component A, (B) a prepolymer soluble or swellable in A (0-12), (C) initiator in amount sufficient for hardening of component A, (D) optionally a means for setting the viscosity of the system, (E) additional additive in amount 3 wt.% per 1 wt.% of A, and (F) filler (0.25-4) per 1 wt.% of binder (the sum of A to E); (2) a shaped part obtained from the SFP plate.