ADHESIVE LOW-MONOMER PU FOAM
The invention relates to a foamable composition that can be cross-linked, having a low monomeric isocyanate content, comprising 70 to 99.8 wt % of prepolymers produced from polyester polyols and/or polyether polyols by reacting same with an excess of aromatic diisocyanates and subsequently removing...
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Main Authors | , , , , |
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Format | Patent |
Language | English Polish |
Published |
28.02.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a foamable composition that can be cross-linked, having a low monomeric isocyanate content, comprising 70 to 99.8 wt % of prepolymers produced from polyester polyols and/or polyether polyols by reacting same with an excess of aromatic diisocyanates and subsequently removing excess monomeric diisocyanate, 0.2 to 30 wt % of additives and at least one propellant, wherein the polyols comprise a functionality of less than 2.5, the polyols have a molar mass (MN) between 150 and 3000 g/mol, and the prepolymers comprise a monomeric diisocyanate content of less than 5 wt %. |
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Bibliography: | Application Number: PL20110730936T |