Acoustically effective bituminous mass for hot application, method for the production thereof, and bituminous sheet material made therefrom
AssigneeCWW-Gerko Akustik GmbH & Co. KG
InventorsKarlheinz Bildner, Zdislaw Kornacki
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Abstract
An acoustically effective, bituminous mass which can be applied hot by means of a flat extrusion mold contains an addition of a thermosetting resin or thermosetting reagent combination, plus bitumen, polymers and/or wax as well as fillers such as aluminum powder or zinc powder, powdered graphite or mica powder. This addition is added to the mass at temperatures under 125° C., so that the polymerization reaction does not occur until a subsequent heating.
Claims19
A method for the production of a sound deadening bituminous mass for hot application, comprising mixing a composition comprising bitumen at temperatures of 130° C. to 180° C. to form a homogeneous mass, cooling the mass to below 130° C., and then adding a thermosetting resin or a thermosetting combination of reagents thereto.
A method for the production of a sound deadening bituminous mass for hot application, comprising mixing a composition which comprises bitumen and at least one member of the group consisting of tackifiers, thermoplastic polymers, waxes and unreactive resins at temperatures of 130° C. to 180° C. to form a homogeneous mass, cooling the mass to below 130° C., and then adding a thermosetting resin or a thermosetting combination of reagents thereto.
A sound deadening bituminous mass for hot application which consists essentially of (A) bitumen, (B) at least one member selected from the group consisting of tackifiers, thermoplastic polymers, waxes and unreactive resins, and (C) a thermosetting resin or a thermosetting reagent combination, wherein said thermosetting reagent combination comprises 3-25% alkyl phenolic resin, 2-5% magnesium oxide, and 0.2-1% resorcinol.
A sound deadening bituminous mass for hot application which consists essentially of (A) bitumen, (B) at least one member selected from the group consisting of tackifiers, thermoplastic polymers, waxes and unreactive resins, and (C) a thermosetting resin or a thermosetting reagent combination, wherein said mass further comprises blocked polyisocyanate.
A sound deadening bituminous mass for hot application which consists essentially of (A) bitumen, (B) at least one member selected from the group consisting of tackifiers, thermoplastic polymers, waxes and unreactive resins, and (C) a thermosetting resin or a thermosetting reagent combination, wherein the tackifier is formulated, aliphatic polyurethane.
A sound deadening bituminous mass for hot application which consists essentially of (A) bitumen, (B) at least one member selected from the group consisting of tackifiers, thermoplastic polymers, waxes and unreactive resins, and (C) a thermosetting resin or a thermosetting reagent combination, wherein the non-reactive resin comprises hydrated hydrocarbon resin.
A sound deadening bituminous mass for hot application which consists essentially of:
- Bitumen 35-80%
- Tackifier 0.5-2%
- Thermoplastic polymers 1-4%
- Wax 2-6%
- Unreactive resin 0-3%
- Alkyl phenolic resin 3-25%
- Magnesium oxide 2-5%
- Resorcinol 0.2-1%
- Thixotropic adjuvant 2-6%
- Aluminum paste 1-4%
- Fillers 15-30%
- Unslaked lime 3-6%.
A sound deadening bitumen sheet comprising an acoustically effective bituminous mass consisting essentially of:
- Bitumen 35-80%
- Tackifier 0.5-2%
- Thermoplastic polymers 1-4%
- Wax 2-6%
- Unreactive resin 0-3%
- Alkyl phenolic resin 3-25%
- Magnesium oxide 2-5%
- Resorcinol 0.2-1%
- Thixotropic adjuvant 2-6%
- Aluminum paste 1-4%
- Fillers 15-30%
- Unslaked lime 3-6%.
Dependencies are inferred from the claim text.