Resin composition, resin molding product, production method of resin molding product and recycling method of resin molding product

A resin composition comprising a copolymer obtained by reacting a lignophenol compound represented by the formula (III) with an aliphatic polyester compound represented by formula (IV):

• wherein X11 and X12 each independently represent a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkoxy group;
• X13 and X14 each independently represent a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkoxycarbonyl group;
• c and d each independently are an integer of from 1 to 4;
• and k is an integer of from 1 to 10, and
• wherein R11 represents a linear or branched alkylene group;
• and j is an integer of 10 or more.

A resin molding product comprising a copolymer having a structure represented by formula (I) and a structure represented by formula (II):

• wherein X1 and X2each independently represent a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkoxy group;
• X3 and X4 each independently represent a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkoxycarbonyl group;
• a and b each independently are an integer of from 1 to 4, and n is an integer of from 1 to 10, and
• wherein R1 represents a linear or branched alkylene group;
• and m is an integer of 10 or more.

A resin molding product comprising a copolymer obtained by reacting a lignophenol compound represented by the formula (III) with an aliphatic polyester compound represented by formula (IV):

• wherein X11 and X12 each independently represent a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkoxy group;
• X13 and X14 each independently represent a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkoxycarbonyl group;
• c and d each independently are an integer of from 1 to 4;
• and k is an integer of from 1 to 10, and
• wherein R11 represents a linear or branched alkylene group;
• and j is an integer of 10 or more.