RESIN COMPOSITION, RESIN MOLDED BODY, AND METHOD FOR PRODUCING POROUS RESIN MOLDED BODY
A resin composition contains cellulose acylate (A), a polyester resin (B), at least one compound (C) selected from the group consisting of cardanol compounds and ester compounds having a molecular weight of 250 or more and 2000 less, and a water-soluble compound (D).
1 . A resin composition comprising:
cellulose acylate (A);
a polyester resin (B);
at least one compound (C) selected from the group consisting of cardanol compounds and ester compounds having a molecular weight of about 250 or more and about 2000 or less; and
a water-soluble compound (D).
2 . The resin composition according to claim 1 , further comprising at least one polymer (E) selected from core-shell structure polymers having a core layer and a shell layer formed on a surface of the core layer and containing a polymer of an alkyl (meth)acrylate, and olefin polymers including about 60 mass % or more of a structural unit derived from α-olefin.
3 . The resin composition according to claim 1 , further comprising a poly(meth)acrylate compound (F) including about 50 mass % or more of a structural unit derived from an alkyl (meth)acrylate.
4 . The resin composition according to claim 1 , wherein the cellulose acylate (A) is at least one selected from cellulose acetate propionate (CAP) and cellulose acetate butyrate (CAB).
5 . The resin composition according to claim 1 , wherein the polyester resin (B) is a polyhydroxyalkanoate.
6 . The resin composition according to claim 5 , wherein the polyester resin (B) is polylactic acid.
7 . The resin composition according to claim 1 , wherein the compound (C) is a fatty acid ester compound.
8 . The resin composition according to claim 7 , wherein the compound (C) is an adipic acid ester-containing compound.
9 . The resin composition according to claim 1 , wherein the compound (C) is a cardanol compound.
10 . The resin composition according to claim 1 , wherein the water-soluble compound (D) has a molecular weight of about 100 or more and about 50,000 or less.
11 . The resin composition according to claim 1 , wherein the water-soluble compound (D) is a polyalkylene glycol compound.
12 . The resin composition according to claim 1 , wherein a mass ratio (B/A) of the polyester resin (B) to the cellulose acylate (A) is about 0.03 or more and about 0.5 or less.
13 . The resin composition according to claim 1 , wherein a mass ratio (C/A) of the compound (C) to the cellulose acylate (A) is about 0.02 or more and about 0.5 or less.
14 . The resin composition according to claim 1 , wherein a mass ratio (D/A) of the water-soluble compound (D) to the cellulose acylate (A) is about 0.001 or more and about 0.2 or less.
15 . A resin molded body comprising the resin composition according to claim 1 .
16 . The resin molded body according to claim 15 that is an injection-molded body.
17 . The resin molded body according to claim 15 that is a porous resin molded body.
18 . A method for producing a porous resin molded body, the method comprising producing a porous resin molded body by bringing the resin molded body according to claim 15 into contact with a water-containing liquid to elute at least part of the water-soluble compound (D) out with the liquid.