US 9,809,675 B2
Polymers made from telechelic N-alkylated polyamides
Naser Pourahmady, Solon, OH (US); Umit G. Makal, Stow, OH (US); Gabor Erdodi, Macedonia, OH (US); and John Ta-Yuan Lai, Broadview Heights, OH (US)
Assigned to LUBRIZOL ADVANCED MATERIALS, INC., Cleveland, OH (US)
Appl. No. 14/767,157
Filed by Lubrizol Advanced Materials, Inc., Cleveland, OH (US)
PCT Filed Feb. 4, 2014, PCT No. PCT/US2014/014521
§ 371(c)(1), (2) Date Aug. 11, 2015,
PCT Pub. No. WO2014/126743, PCT Pub. Date Aug. 21, 2014.
Claims priority of provisional application 61/764,241, filed on Feb. 13, 2013.
Prior Publication US 2015/0376325 A1, Dec. 31, 2015
Int. Cl. C08G 18/00 (2006.01); C08G 69/00 (2006.01); C08G 18/60 (2006.01); C08G 18/65 (2006.01); C08G 18/76 (2006.01); C08G 69/26 (2006.01); C08G 69/40 (2006.01); C08G 69/44 (2006.01)
CPC C08G 18/603 (2013.01) [C08G 18/6511 (2013.01); C08G 18/7671 (2013.01); C08G 69/26 (2013.01); C08G 69/265 (2013.01); C08G 69/40 (2013.01); C08G 69/44 (2013.01)] 17 Claims
 
1. A thermoplastic polyurethane composition comprising the reaction product of: (i) a polyol component containing a telechelic polyamide; and (ii) a polyisocyanate component; and optionally (iii) a chain extender component;
wherein the telechelic polyamide:
(a) has repeat units connected by linkages, wherein the linkages comprise heteroatom containing linkages, and has functional end groups selected from carboxyl or primary or secondary amine, wherein at least 70 mole percent of the telechelic polyamide has exactly two functional end groups of the same functional type selected from the group consisting of amine or carboxyl functional end groups;
(b) has a polyamide segment comprising at least two amide linkages derived from reacting an amine with a carboxyl group, wherein said polyamide segment comprises repeat units derived from two or more monomers selected from lactams, aminocarboxylic acids, dicarboxylic acids, and diamines;
(c) wherein at least 10 percent of the total number of the heteroatom containing linkages are amide linkages; and
(d) wherein at least 50 percent of the amide linkages are tertiary amide linkages.