Optical element material and method for producing same

摘要

An optical element material which is obtained by curing a resin composition for photoimprinting containing a photocurable monomer (A) of the formula (1) and a photocurable monomer (B) of the formula (2) in a weight ratio of from 30/70 to 87/13, and containing a photopolymerization initiator (C) in a content of from 0.01 to 30 parts by weight per 100 parts by weight of the total weight of the monomer (A) and the monomer (B), and which has a shrinkage on curing of at most 4.5%, and a method for producing it:;wherein R1 is —CH═CH2, —CH2CH2—O—CH═CH2, —CH2—C(CH3) ═CH2 or a glycidyl group; R2 and R3 are each independently hydrogen or a C1-4 alkyl group; R4 and R5 are each independently —O—CH═CH2, —O—CH2CH2—O—CH═CH2, —O—CO—CH═CH2, —O—CO—C(CH3)═CH2, —O—CH2CH2—O—CO—CH═CH2, —O—CH2CH2—O—CO—C(CH3)═CH2 or a glycidyl ether group; and R6 and R7 are each independently hydrogen or a C1-4 alkyl group.

主权项

1. An optical element material obtained by a process consisting of curing a resin composition consisting of:
a photocurable monomer (A) having formula (1): a photocurable monomer (B) having formula (2): a photopolymerization initiator (C); a viscosity-adjusting agent (D) other than a carbazole skeleton-containing polymer, said viscosity-adjusting agent (D) selected from the group consisting of a resin containing an aromatic ring, a resin containing a non-aromatic cyclic structure, a resin containing a hydroxyl group, and a resin containing a protected hydroxyl group; optionally a solvent (G); optionally a photocurable monomer (H) other than the photocurable monomer (A); optionally a sensitizer; optionally a coloring agent; optionally a leveling agent; optionally at least one additive selected from the group consisting of an antifoaming agent, an antioxidant, a heat-resistant stabilizer, a weather-resistant stabilizer, and a light stabilizer; and optionally an adhesion-imparting agent,wherein:
the resin composition has a weight ratio of the photocurable monomer (A) to the photocurable monomer (B) in a range of 30/70 to 85/15; the resin composition has a content of the photopolymerization initiator (C) in a range of 0.01 to 30 parts by weight per 100 parts by weight of a total weight of the photocurable monomer (A) and the photocurable monomer (B); the resin composition has a content of the viscosity-adjusting agent (D) in a range of 0.1 to 100 parts by weight per 100 parts by weight of the total weight of the photocurable monomer (A) and the photocurable monomer (B); the resin composition has a shrinkage on curing of at most 4.5% at the time of curing; R1 is —CH═CH2, —CH2CH2—O—CH═CH2, —CH2—C(CH3)═CH2 or a glycidyl group; R2 and R3 are each independently hydrogen or a C1-4 alkyl group; R4 and R5 are each independently —O—CH═CH2, —O—CH2CH2—O—CH═CH2, —O—CO—CH═CH2, —O—CO—C(CH3)═CH2, —O—CH2CH2—O—CO—CH═CH2, —O—CH2CH2—O—CO—C(CH3)═CH2 or a glycidyl ether group; and R6 and R7 are each independently hydrogen or a C1-4 alkyl group.