PURPOSE: To obtain an impact-resistant polyamide composition having remarkably improved impact resistance in absolutely dried state, effectively utilizing industrial waste of vulcanized rubber, by kneading and dispersing vulcanized rubber powder in a polyamide matrix.
CONSTITUTION: The objective composition is produced by (1) dry-blending (A) 50W95pts.(wt.) of pellet or powder of a polyamide composed of nylon 6, nylon 66, etc., or their mixture and (B) 5W50pts. of vulcanized rubber powder having particle diameter of preferably ≤0.1mm (preferably buff powder generated in the production of a rubber belt from economical viewpoint) and produced by compounding metal oxide, filler, softener, etc., to a rubber such as natural rubber, chloroprene rubber, etc., and vulcanizing the composition at 150W170°C and (2) kneading the blended product with a twin-screw extruder.
MORI SHUJI
SAKA SEIJI
ATSUMI KAZUYA
| JPS58136638A | 1983-08-13 | |||
| JPS5819342A | 1983-02-04 | |||
| JPS58120663A | 1983-07-18 | |||
| JPS58117250A | 1983-07-12 |