Polyalkenyl ether resin

An urethane acrylate having a structural unit represented by formula (XXX):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3 and R4 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl, and
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different.

An urethane acrylate having a structural unit represented by formula (II):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3, R4 and R5 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different,
• R9 represents a residue derived from a polyisocyanate compound,
• R0 represents substituted or unsubstituted lower alkylene, substituted or unsubstituted cycloalkylene, or substituted or unsubstituted arylene, and
• R11, R12 and R13 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aralkyl.

An urethane alkenyl ether, having a structural unit represented by formula (XXX):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3 and R4 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl, and
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different.

An urethane alkenyl ether having a structural unit represented by formula (XI):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3, R4 and R5 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different,
• R33 represents a residue derived from a polyisocyanate compound,
• R34 represents a substituted or unsubstituted lower alkylene, substituted or unsubstituted cycloalkylene, or substituted or unsubstituted arylene, and
• R35, R36 and R37 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted aralkyl.

A polyester having a structural unit represented by formula (III):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3, R4 and R5 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different, and
• R14 represents substituted or unsubstituted lower alkylene, substituted or unsubstituted cycloalkylene, or substituted or unsubstituted arylene.

An ester acrylate having a structural unit represented by formula (IV):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3, R4 and R5 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different, and
• R15, R16, and R17 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl.

An alkenyl ether having a structural unit represented by formula (V):

• wherein n represents an integer of 2 to 1000,
• R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R2, R3, R4 and R5 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl,
• R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be the same or different, and
• R18,R19,and R20 independently represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl.