High refractive index triazine monomer
AssigneeKorea Research Institute of Chemical Technology
InventorEun Kyoung Kim
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Abstract
The present invention relates to a triazine type monomer, and more particularly, to a 1,3,5-triazine type monomer characterized by having at least one amine group and at least two sulfur atoms, which can be used in manufacturing transparent optical resins having excellent refractive index, surface hardness and absorbance as well as an improved workability and the ability to control a wide range of refractive index according to the change in composition by the monomer itself at room temperature or by polymerizing the monomer with a comonomer in the presence of an organic solvent or an initiator.
Claims7
A 1,3,5-triazine type monomer characterized by having at least one amine group and at least two sulfur atoms as expressed in the following formula (I),
- 9
- wherein R1 is a secondary or a tertiary amine group selected from the group consisting of R4NH—, R4R5N— or
- 10
- R4 and R5 are independently C1-C22 alkyl or cycloalkyl;
- R6 is C1-C15 alkylene or an aromatic ring forming alkenes such as —CH═CH—CH═CH— or —CH═CH—CH2—CH═CH—;
- R2 is C1-C22 linear alkylene, branched alkylene, or a 1,3-,1,4-benzene ring;
- R3 is R1 or —S—( R2—S)n—X;
- X is an acryl-, methacryl or C2-C10 alkene group;
- and n is an integer of 1-10.
A polymerizable resin composition comprising 1-98 wt % of a monomer expressed in the above formula (I);
- 1-98 wt % of either an aromatic radical polymerizable monomer or a comonomer with an unsaturated group;
- and 0.5-5 wt % of an initiator.
Dependencies are inferred from the claim text.