Patent ID: 11919993
Assignee: STEPAN COMPANY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polyester polyol that is the reaction product of:
(a) from 10 mol % to 70 mol %, based on the total mols forming the reaction product, of a polycarboxylic acid component, or an anhydride, halide, alkyl ester or lactone derivative thereof, comprising
(i) from 55 mol % to 100 mol %, based on the polycarboxylic acid component, of at least one aliphatic polycarboxylic acid or derivative thereof, and
(ii) from 0% to 45 mol %, based on the polycarboxylic acid component, of at least one aromatic polycarboxylic acid or derivative thereof;

(b) from 15 mol % to 70 mol %, based on the total mols forming the reaction product, of at least one alkoxylated polyalcohol having an average functionality of 2.0 or greater; and
(c) from 10 mol % to 70 mol %, based on the total mols forming the reaction product, of at least one polyalcohol other than an alkoxylated polyalcohol, wherein the polyalcohol other than an alkoxylated polyalcohol is:
(i) selected from the group consisting of triethylene glycol, propylene glycol, dipropylene glycol, trimethylene glycol, butylene glycols, neopentyl glycol, 1,6-hexanediol, 2-methyl-1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 3-hydroxy-2,2-dimethylpropyl-3-hydroxy-2,2-dimethyl propanoate, 1,2-cyclohexandiol, 1,3-cyclohexanediol, 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, resorcinol, hydroquinone, poly(oxyalkylene) polyols derived by the condensation of ethylene oxide, propylene oxide, or a combination thereof, glycerol, diglycerol, trimethylolpropane, pentaerythritol, dipentaerythritol, sucrose, glucose, fructose, sorbitol and mannitol, and combinations thereof, or
(ii) ethylene glycol in an amount of about 1.4 mol % combined with a polyalcohol selected from the group consisting of triethylene glycol, propylene glycol, dipropylene glycol, trimethylene glycol, butylene glycols, neopentyl glycol, 1,6-hexanediol, 2-methyl-1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 3-hydroxy-2,2-dimethylpropyl-3-hydroxy-2,2-dimethyl propanoate, 1,2-cyclohexandiol, 1,3-cyclohexanediol, 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, resorcinol, hydroquinone, poly(oxyalkylene) polyols derived by the condensation of ethylene oxide, propylene oxide, or a combination thereof, glycerol, diglycerol, trimethylolpropane, pentaerythritol, dipentaerythritol, sucrose, glucose, fructose, sorbitol and mannitol, and combinations thereof;
wherein the polyester polyol has a functionality of 2.0 or greater, a viscosity of about 1,000 cP to about 10,000 cP at 25° C., and an OH value of 200 to 800 mg KOH/g.