| abstract |
A resin for optical use having excellent storage stability is provided. SOLUTION: General formula (2): [Chemical 1] (In the formula, R represents a diisocyanate residue, R 1 represents a monoisocyanate residue, and n is an integer of 2 to 15) Polycarbodiimide represented by the general formula (3): [Chemical 2] (Wherein R 1 represents a monoisocyanate residue) At least one selected from the group consisting of carbodiimides represented by: General formula (1): [Chemical 3] (In the formula, R represents a diisocyanate residue, R 1 represents a monoisocyanate residue, and n is an integer of 20 to 200) Optical use resin containing the polycarbodiimide represented by these. [Selection figure] None |