Production of natural fibre-reinforced polyurethane sheet

Naturfaser-verstärkte Polyisocyanat-Polyaddidionsprodukte, Verfahren zu deren Herstellung und deren Verwendung

Abstract

A process for the production of natural fibre-reinforced polyisocyanate-polyaddition products (I) by reacting (A) polyisocyanates with (B) isocyanate-reactive compounds and optionally (C) chain extenders and/or crosslinkers, catalysts, blowing agents and other additives etc. in the presence of natural fibres, in which at least 20 wt% of component (B) consists of ring-opened epoxidised fatty acid compounds and/or adducts of fatty acid compounds and alkylene oxides. Also claimed are (i) fibre-reinforced products (I) obtained by this process, (ii) building, packaging and furnishing materials and vehicle construction materials containing (I), and especially (iii) interior linings for vehicles containing (I). Preferably the modified fatty acid compounds in (B) are based on materials of vegetable origin, especially oleic and/or linoleic acid; preferably, at least 20 wt.% of (B) consists of hydroxylated castor oil. Preferred natural fibres are mixtures of sisal with jute, hemp and/or flax. Preferred (I) is in the form of moulded sheet with a thickness of 1-10 mm, possibly laminated with outer layers.

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Cited By (10)

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    DE-10138132-B4August 11, 2011Basf Se, 67063Polyurethane mit einer Shore A-Härte von 1 bis 20
    DE-19830774-A1January 13, 2000Buna Sow Leuna Olefinverb GmbhThermoplastisch verarbeitbare Formmassen auf Basis von Stärkeestern und Naturfaserkomponenten und Verfahren zur Herstellung von Gegenständen mittels Spritzguß
    NL-1010954-C2July 06, 2000Tinga Research & Dev B VGolfplaat, werkwijze voor de vervaardiging daarvan en bij die werkwijze toegepaste persinstallatie.
    US-6682673-B1January 27, 2004Cognis Deutschland Gmbh & Co. KgMethod for producing fiber reinforced materials
    US-8663414-B2March 04, 2014Basf SePolyurethane-based pultrusion resin system
    WO-0040819-A1July 13, 2000Tinga Research & Development B.V.Plaque ondulee, procede de production de celle-ci et installation de presse utilisee dans le procede
    WO-0102469-A1January 11, 2001Cognis Deutschland GmbhMethod for producing fiber reinforced materials
    WO-0132755-A1May 10, 2001Cognis Deutschland Gmbh & Co. KgLagerstabile prepregs auf basis duroplastischer, oleochemischer matrices
    WO-2011067246-A1June 09, 2011Basf SePultrusion resin system based on polyurethane
    WO-2012020029-A1February 16, 2012Bayer Materialscience AgComposition de polyuréthanne pour mousse à peau intégrée