TRANSPARENT COMPOSITE PLATE GLASS

PURPOSE: To provide transparent composite plate glass capable of being destructed by sufficient blow and impact force without being crushed into fragments by using an elastomer E containing a specific wt.% of a comb-shaped polymer constituted of a polymethyl methacrylate macromonomer represented by...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KURAUSU KORAREFUSUKII, BUERUNAA JIORU, MIHIYAERU MAIAA KAIZAA, HANSU ROORENTSU
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING BUILDING MATERIALS CHEMISTRY COMPOSITIONS BASED THEREON FIXED CONSTRUCTIONS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS STRUCTURAL ELEMENTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE: To provide transparent composite plate glass capable of being destructed by sufficient blow and impact force without being crushed into fragments by using an elastomer E containing a specific wt.% of a comb-shaped polymer constituted of a polymethyl methacrylate macromonomer represented by a specific general formula and alkyl acrylate. CONSTITUTION: Composite plate glass consists of an acrylic glass outside plate with a thickness of 2 mm or more having two parallel surfaces and an intermediate layer containing a thermoplastic processable elastomer. The intermediate layer is wholly or partially composed of an elastomer and the elastomer contains 60-100 wt.% of a comb-shaped polymer. This polymer consists of 50-5 wt.% of polymethyl methacrylate macromonomer represented by formula I (wherein R is a radical polymerizable terminal group and n is adjusted so as to set the mol.wt. of the macromonomer to 500-100,000 dalton) and 50-95 wt.% of alkyl acrylate represented by formula II (wherein R4 is a 2-20C alkyl group).