POLYURETHANE FOAMS COMPRISING OLIGOMERIC POLYOLS

• Main Authors: DIMITRI DOUNIS, JEFF MALSAM, TIMOTHY W. ABRAHAM, JACK A. CARTER
• Format: Patent
• Language: English; Spanish
• Published: 21.01.2008
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to polyurethane foams comprising oligomeric polyols. In embodiments of the invention, the polyurethane foams comprise the reaction product of: (a) a polyisocyanate; and (b) an active-hydrogen containing composition comprising an oligomeric polyol having a hydroxyl number of about 45 to about 65 mg KOH/g, a number average hydroxyl functionality (Fn) of less than about 2.7, and about 40% weight or greater oligomers. The polyurethane foams of the invention may be slabstock foams or molded foams. Also disclosed are low odor polyols and polyurethane compositions. Espumas de poliuretano que comprenden polioles oligomericos. En realizaciones de la invencion, las espumas de poliuretano comprenden el producto de reaccion de (a) un poliisocianato y (b) una composicion que contiene hidrogeno activo que comprende un poliol oligomerico que tiene un numero de hidroxilos entre aproximadamente 45 y aproximadamente 65 mg KOH/g un numero promedio de funcionalidad hidroxilo (Fn) menor que aproximadamente 2.7 y un 40% en peso aproximadamente de oligomeros superiores. Las espumas de poliuretano de la invencion pueden ser espumas en laminas o espumas moldeadas.