| abstract |
The invention, in one aspect, is a copolymer comprising amorphous polyamide hard segments, which contain l-methyl-2,4-phenylene, l-methyl-2,6-phenylene, or mixtures thereof structure units. The structure characteristics of l-methyl-2,4-phenylene, l-methyl-2,6-phenylene, or mixtures thereof render the hard segments having glass transition temperatures below 200 0C while maintaining physical properties required for making molded articles. |