PURPOSE: To provide the titled compsn. having a high rate of crystallization in a low-temperature region and excellent heat resistance, mechanical properties and moldability, consisting of an ethylene terephthalate polyester and a specified filler.
CONSTITUTION: An acid component consisting of 99W80mol% of terephthalic acid and 1W20mol% of 12C or higher aliph. satd. dicarboxylic acid such as decane-1,10-dicarboxylic acid is reacted with a glycol component to obtain an ethylene terephthalate polyester (A) having a relative viscosity of 1.25 or above. 0.01W20pts.wt. filler selected from inorg. compd. having an average particle size of 50μ or below, such as silica, org. compd. having a carboxylate metal salt group, such as a metal stearate, and high-molecular compd. having a carboxylate metal salt group, such as a metal terephthalate, and optionally 5W 150pts.wt. reinforcing fiber having a length of 0.1W10mm, such as glass fiber, are blended with 100pts.wt. component A.
AOKI KATSU
ITOU YOSHIHARU
TSUJI TOSHIO
MITSUI MINORU
DOI OSAMU
| JPS5247892A | 1977-04-16 |