Patent ID: 7295376

Claim:
An optical element form by molding a molding material, wherein the molding material is a pseudo cross-link resin composition comprising at least two polymers; wherein the resin composition is obtained by mixing a polymer A that has an atomic group capable of forming an intermolecular hydrogen bond in a molecular side chain and/or at a molecular tail end of the polymer molecule, and a polymer B that has an atomic group capable of forming an intermolecular hydrogen bond in a molecular side chain of the polymer molecule; wherein the polymer A that has an atomic group capable of forming an intermolecular hydrogen bond in a molecular side chain and/or at a molecular tail end is a vinylic polymer and/or copolymer that has a carboxyl group in a molecular side chain and/or at a molecular tail end, and the polymer B that has the atomic group capable of forming an intermolecular hydrogen bond in a molecular side chain is a vinylic polymer and/or copolymer having at least one nitrogen atom contained in an amino group, an amide group or a group consisting of a pyridine unit in a molecular side chain; wherein the amount of a monomer containing a carboxyl group is in a range of from 2 mol % to 50 mol % based on the total monomers of the polymer A, and the amount of a monomer having the nitrogen atom is in a range of from 2 mol % to 50 mol % based on the total monomers of the polymer B; and wherein when the polymer A and the polymer B or copolymers thereof are mixed together, the intermolecular hydrogen bond is formed therebetween.