| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an aliphatic polyester resin composition which has a sufficient molecular weight and excellent mechanical strength when being produced, but begins to reduce the molecular weight immediately in soil, in water, or in a humid condition under a relatively mild temperature condition.SOLUTION: Provided is an aliphatic polyester resin composition comprising an aliphatic polyester resin (A) and an organic phosphorus compound (B) represented by the following formula (1). [In the formula (1), X represents a hydrogen atom or OH; n represents an integer of 1 to 20; and m represents 1 or 2.] A content of the organic phosphorus compound (B) is 0.3 to 5 pts.mass relative to 100 pts.mass of the aliphatic polyester resin (A). Also provided is a method for producing the aliphatic polyester resin composition comprising melt kneading 0.3 to 5 pts.mass of the organic phosphorus compound (B) represented by the formula (1) in 100 pts.mass of the aliphatic polyester resin (A).</p> |
