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US 6,602,926 B1Granted
Catalyst system for the NCO/OH reaction (polyurethane formation)
AssigneeRhein Chemie Rheinau GmbH
InventorsLudger Heiliger, Reinhard Montag
Life of this patent
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Abstract
The present invention relates to a catalyst system for the production of polyurethane comprising catalysts for polyurethane formation and sterically hindered carbodiimides, which system is capable of lessening the “fogging” problem in the production of polyurethane materials, without impairing in particular the aging properties of the polyurethane materials thus produced.
Claims16
A flexible polyurethane foam comprising a catalyst system for the NCO/OH reaction, which comprises
- A) at least one catalyst for the NCO/OH reaction (polyurethane formation) and
- B) at least one sterically hindered carbodiimide,
- wherein component B) is present in a quantity of 1 wt. % up to 200 wt. %, based on the total quantity of component A).
Dependencies are inferred from the claim text.