Basic magnesium sulfate fiber-reinforced polypropylene resin composition and injection molded article using the resin composition

   
   

Disclosed is a polypropylene resin composition comprising (A) from 40 to 98% by weight of polypropylene resin, (B) from 1 to 30% by weight of basic magnesium sulfate fiber having a surface treated with montan wax wherein fibers contained in primary fibers have an average fiber length of from 7 to 10 .mu.m and the percentage of primary fibers containing fibers having a fiber length of 20 .mu.m or more is 10% by weight or less and (C) from 1 to 30% by weight of talc, provided that the total weight of the components (A), (B) and (C) is adjusted to 100% by weight.

Se divulga una composición de la resina del polypropylene que abarca (a) a partir del 40 hasta el 98% en peso de la resina del polypropylene, (b) a partir de la 1 hasta el 30% en peso de la fibra básica del sulfato del magnesio que tiene una superficie tratada con la cera montan en donde las fibras contenidas en fibras primarias tienen una longitud media de la fibra de a partir el mu.m el 7 a 10 y el porcentaje de las fibras primarias que contienen las fibras que tienen una longitud de la fibra del mu.m 20 o más es el 10% por el peso o menos y (c) a partir de la 1 hasta el 30% en peso de el talco, a condición de que el peso total de los componentes (a), (b) y (c) es ajustado a 100% por el peso.

 
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