THERMOPLASTIC POLYAMIDE MOULDING COMPOSITIONS

• Main Authors: BRINKMANN L, KIRSCH G, HERWIG W
• Format: Patent
• Language: English
• Published: 29.10.1975
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The materials are composed of (a) 2-80 wt. % (esp. 10-40 wt. %) of a solid mineral filler with particle size of 20 mu, pref. 0.1-10 mu, and (b) 98-20 wt. % esp. 90-60 wt. % of >=1 amorphous polyamide derived from (I) 5-50 mole%, pref. 10-35 mole% of 1,3-bis-(aminomethyl)-cyclohexane and/or 1,4-bis-(aminomethyl)-cyclohexane and/or 2,5-bis-(aminomethyl)-bi-cyclo- 2,2,1 -heptene and/or 2,6-bis-(aminomethyl)-bi-cyclo- 2,2,1 -heptane, and/or >=1 bis-(4-aminocyclohexyl) derivative of a 1-6C alkane, pref. a 1-3C alkane, and/or substituted m-xylylene-diamine and pref. contg. =50 mole%, esp. =35 mole% of the m-xylylene-diamine, (II) 0-45 mole%, pref. 0-35 mole% of >=1 opt. branched aliphatic diamine with 4-20, pref. 6-12C in which the amino gps. are separated by >=4, pref. >=6C, (III) 5-50 mole%, pref. 10-35 mole% of >=1 aromatic dicarboxylic acid with 7-20C, pref. 8-14C, with a single nucleus carrying carboxyl gps. in the meta or para position, (IV) 0-45 mole%, pref. 0-35 mole% of >=1 satd. dicarboxylic acid with opt. branched aliphatic chain with 6-20, esp. 6-12C, in which the COOH gps. are separated by >=4C, and (V) 0-80 mole% pref. 0-50 mole% of >=1 aliphatic aminocarboxylic acid with 2020C, esp. 6-20C esp. omega-aminocarboxylic acids, whereby the sum (in mole%) components (I)+(II)=(III)+(IV), (I)+(II)+(III)+(IV)+(V)=100 mole%, (I)+(III)=20-95, esp. 50-90 mole%, (II)+(IV)+(V)=5-80, esp. 10-50 mole% (all measured on (I)+(II)+(III)+(IV)+(V)).