Resin composition

A stable resin composition which comprises 0.1 to 25 percent by weight of an oil retainer, 99.8 to 50 percent by weight of a base resin and 0.1 to 25 percent by weight of an oil, with the weight ratio of oil to oil retainer being from 2 to 1 to 15 to 1 the said oil being absorbed and remaining absorbed by the oil retainer;

• said oil retainer being a thermoplastic resin which has a lower flowing temperature than the base resin, and at normal room temperatures remains undissolved in the oil and absorbs not more than 0.03 times its own weight of oil, and which, at a temperature 10.degree. C higher than the flowing temperature of the base resin, dissolves in the oil or absorbs not less than 0.3 times its own weight of oil;
• said base resin being a thermoplastic resin which remains undissolved in the oil and absorbs not more than 0.03 times its own weight of oil, and, at a temperature 10.degree. C higher than the flowing temperature of the base resin, it absorbs not more than one half of the weight of the oil absorbed by the oil retainer and is different from the oil retainer;
• and said oil being a lubricating oil which is liquid at normal room temperatures or which, though solid at normal room temperatures, becomes fluidized at a temperature lower than the flowing temperature of the base resin.