Patent ID: 8436063

Claim:
A polymer polyol having a polyol continuous phase and dispersed polymer particles, wherein the polyol continuous phase includes at least one hydroxymethyl-containing polyester polyol derived from a fatty acid or ester of a fatty acid, wherein the dispersed polymer particles comprises polyurea polymer particles or polyurethane-urea particles formed in the presence of the at least one hydroxymethyl-containing polyester polyol derived from a fatty acid or ester of a fatty acid, and wherein the hydroxymethyl group-containing polyester polyol has the following structure: [H—X] z-p) —R—[X—Z] p (I) wherein R is the residue of an initiator compound having z hydroxyl and/or primary or secondary amine groups, where z is at least two; each X is independently —O—, —NH— or —NR′— in which R′ is an inertly substitute alkyl, aryl, cycloalkyl, or aralkyl group, p is a number from 1 to z representing the average number of [X—Z] groups per hydroxymethyl-containing polyester polyol molecule, Z is a linear or branched chain containing one or more A groups, provided that the average number of A groups per molecule is >=1.3 times z, and each A is independently selected from the group consisting of A1, A2, A3, A4 and A5, provided that at least some A groups are A1, A2 and A3, and provided that A1 has a molar ratio of between about 30 and about 80 mole-% of the total mole-% of A1+A2+A3, A2 has a molar ratio of between about 10 and about 60 mole-% of the total mole-% of A1+A2+A3, A3 has a molar ratio of between about 0.1 and about 10 mole-% of the total mole-% of A1+A2+A3, wherein A1 is: wherein B is H or a covalent bond to a carbonyl carbon atom of another A group; m is number greater than 3, n is greater than or equal to zero and m+n is from 11 to 19; A2 is: wherein B is as before, v is a number greater than 3, r and s are each numbers greater than or equal to zero with v+r+s being from 10 to 18, A3 is: wherein B, v, each r and s are as defined before, t is a number greater than or equal to zero, and the sum of v, r, s and t is from 10 to 18; A4 is where w is from 10-24, and A5 is where R′ is a linear or branched alkyl group that is substitute with at least one cyclic ether group and optionally one or more hydroxyl groups or other ether groups.