Polyurethane systems for production of polyurethane sandwich components
AssigneeBASF SE
InventorsJoerg Poeltl, Klaus Schuerer, Michael Fader
Life of this patent
Estimating the term…
Abstract
The present invention relates to the use of a polyurethane system, comprising (a) polyisocyanates, (b) at least one compound reactive with isocyanate, (c) at least one reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary NH2 group, (d) at least one catalyst, and (e) if appropriate, further additives, for production of polyurethane sandwich components. The present invention further relates to a process for production of polyurethane sandwich components, and to polyurethane sandwich components obtainable by this process.
Claims9
The production of polyurethane sandwich components of a polyurethane system, comprising
- a) polyisocyanates,
- b) at least one compound reactive with isocyanate,
- c) at least one reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary NH2 group,
- d) at least one catalyst, and
- e) optionally, further additives.
Dependencies are inferred from the claim text.