| 摘要 |
1469791 Polyamide moulding composition HOECHST AG 29 Aug 1974 [30 Aug 1973 8 Nov 1973] 37859/74 Heading C3R A moulding composition comprises, by weight: 2-80% (A) wollastonite or talcum as a powder of average particle size #20 Ám, and 98-20% amorphous copolyamide (B) derived from: 5-50% mol. diamine (α 1 ) being a bis-(aminomethyl)-cyclohexane or -bicycloheptane, a bis- (aminocyclohexyl) - alkane, or m - xylylenediamine optionally mixed with p-xylylenediamine; 0-45% mol. C 4-20 aliphatic diamine (α 2 ); 5-50% mole C 7-20 aromatic dicarboxylic acids (# 1 ); 0-45% mole C 6-20 aliphatic acids (# 2 ); and 0-80 % mole C 2-20 aliphatic amino acids; [(α 1 ) + (# 1 )] totals 20-95% mole. (B) may also comprise units derived from mono-, tri-, or higher carboxylic acids or amines. |
