Back to results
US 2009/0260754 A1Published application
Casting resin for adhesive bonding of fibers
OwnerAndre Te Poelinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a liquid 2K polyurethane composition of a polyol component A comprising at least one hydrophobic polyol with a molecular weight>300 g/mol and a hydrophilic polyol with a molecular weight<500 g/mol, and 1 to 50 wt. % of a powdered molecular sieve as well as a polyisocyanate or an NCO-reactive PU-prepolymer. In addition, a process is described for casting plastic or metallic moldings, particularly membrane substrates, by the use of an inventive 2K polyurethane composition.
Claims16
A crosslinkable, liquid 2K polyurethane composition comprising:
- a) component A which comprises a mixture of (i) at least one hydrophobic polyol with a molecular weight greater than 300 g/mol, (ii) at least one low molecular weight hydrophilic polyol with a molecular weight lower than 500 g/mol, and (iii) 1 to 50 wt. %, based on component A, of a powdered molecular sieves;
- and
- b) component B which comprises at least one polyisocyanate and/or an NCO-reactive polyurethane prepolymer.
Dependencies are inferred from the claim text.