Polyol composition for producing polyurethan resin, polyurethane resin-forming composition, and polyurethane resin
AssigneeSanyo Chemical Industries, Ltd.
InventorsMasanobu Wada, Chie Sato
Life of this patent
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Abstract
The present invention aims to provide a polyol composition for producing a polyurethane resin, the polyol composition being capable of providing a polyurethane resin-forming composition having low viscosity and an appropriately long pot life and thus having good castability and providing a cured polyurethane resin having excellent moisture and heat resistance and substrate adhesion. The present invention relates to a polyol composition for producing a polyurethane resin, the polyol composition containing an ester (A) of a hydroxycarboxylic acid (h) and at least one of an amine polyol (a1) represented by the following formula (1) or a polyamine polyol (a2) represented by the following formula (2).
Claims9
A polyol composition for producing a polyurethane resin, the polyol composition comprising:
- a castor oil polyol (C1);
- and
- an ester (A) of a hydroxycarboxylic acid (h) and a polyamine polyol (a2) represented by the following formula (2),
- the formula (2) being as follows:
- wherein each R2 independently represents a C2-C12 alkylene group;
- p and q each independently represent an integer of 0 or 1;
- A3O, A4O, A5O, A6O, A7O, and A8O each independently represent a C2-C3 oxyalkylene group;
- and r, s, t, u, v, and w each independently represent a number average mole of oxyalkylene groups added, are each a number of 1 to 2, and satisfy the equation:
- r+s+t+u+v+w=4.0 to 7.0, with the proviso that when p is 0, v is 0, and when q is 0, w is 0.
Dependencies are inferred from the claim text.