US 7,393,913 B2
Polyamides
Helmut Winterling, Ludwigshafen (Germany); Jürgen Demeter, Ludwigshafen (Germany); Jürgen Deininger, Oftersheim (Germany); Gad Kory, Gaiberg (Germany); Oliver Sötje, Mannheim (Germany); Ralf Neuhaus, Heidelberg (Germany); Kurt Krempel, Rödersheim-Gronau (Germany); and Christoph Benisch, Mannheim (Germany)
Assigned to BASF Aktiengesellschaft, Ludwigshafen (Germany)
Appl. No. 10/556,674
PCT Filed May 06, 2004, PCT No. PCT/EP2004/004816
§ 371(c)(1), (2), (4) Date Nov. 14, 2005,
PCT Pub. No. WO2004/101647, PCT Pub. Date Nov. 25, 2004.
Claims priority of application No. 103 21 789 (DE), filed on May 14, 2003.
Prior Publication US 2007/0027295 A1, Feb. 01, 2007
Int. Cl. C08G 73/10 (2006.01)
U.S. Cl. 528—312  [528/310] 9 Claims
 
1. A polyamide whose main chain comprises a chemically bound N-alkylcaprolactam wherein the N-alkylcaprolactam content is in the range from 0.001 mol % to 2 mol %, based on 1 mol of acid amide groups of the polyamide.