Back to results
US 2015/0175744 A1Published application
Polyamide, polyamide composition, and molded article
AssigneeAsahi Kasei Chemicals Corporation
InventorsShinji Ieda, Koichi Nagase, Yu Nitto
Life of this patent
Estimating the term…
Abstract
A polyamide comprising a unit containing at least one (a) alicyclic dicarboxylic acid and a unit containing a (b) diamine having 8 or more carbon atoms, wherein the polyamide satisfies the following conditions (1) and (2): (1) a sulfuric acid relative viscosity ηr at 25° C. is 2.3 or more; and (2) Mw (weight average molecular weight)/Mn (number average molecular weight) is 4.0 or less.
Claims29
1-23. (canceled)
A polyamide comprising:
- a unit comprising at least one (a) alicyclic dicarboxylic acid;
- and
- a unit comprising a (b) diamine having 8 or more carbon atoms,
- wherein the polyamide satisfies the following conditions (1) and (2):
- (1) a sulfuric acid relative viscosity ηr at 25° C. is 2.3 or more;
- and
- (2) Mw (weight average molecular weight)/Mn (number average molecular weight) is 3.0 or less.
4 more elements
Dependencies are inferred from the claim text.