KR870011159A - Copolymer having high refractive index and manufacturing method thereof - Google Patents

Abstract

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Description

Copolymer having high refractive index and manufacturing method thereof

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Claims (13)

Has a high refractive index, and (A) 1-90% by weight of a first repeating unit derived from at least one monomer having the general formula (I) (Meal, R ¹ is hydrogen, chlorine or bromine atom or methyl group, R ² is a polycyclic aliphatic hydrocarbon group, and n is 0,1,2 or 3). (B) aliphatic polyhydric alcohol and general formula General formula is an ester with an unsaturated carboxylic acid 1-80% by weight of a second repeating unit derived from at least one monomer having at least two residues of which R ³ is hydrogen, chlorine or bromine or a methyl group, and (C) a copolymer containing 5-90% by weight of a third repeat unit derived from at least one monomer capable of producing a homopolymer having a refractive index of at least 1.55 and being radical-polymerizable. The copolymer according to claim 1, wherein the polycyclic aliphatic hydrocarbon group represented by R ² in general formula (I) has 7-30 carbon atoms, in particular a copolymer having the general formula (Wherein Y ¹ and Y ² are each hydrogen, chlorine or bromine atom or lower alkyl group or together form another bond) The compound copolymer according to claim 1, wherein the second monomer is selected from the group consisting of compounds of the following general formulas (III)-(IV) And (Meal, R ³ is hydrogen, chlorine or bromine atom or methyl group, R ⁴ is an alkylene group having 2-18 carbon atoms, R ⁵ is an alkylene group having 2-10 carbon atoms, At least two of A ¹ , A ^2, and A ³ are of the general formula , The remainder are alkanoyl groups, and at least two of A ⁴ -A ⁹ are of the general formula Is a residue of and the remainder is an alkanoyl group, and m is an integer from 2-25). The copolymer according to claim 1, wherein the third monomer is selected from the group consisting of the following general formula compounds and bisphenol A derivatives of the following general formula: (Meal, R ⁶ is hydrogen, chlorine or bromine atom or methyl group, R⁷silver A hydrogen atom or a methyl group, R ⁸ and R ⁹ are each independently hydrogen, chlorine or bromine atom or methyl group, X is a chlorine, bromine or iodine atom, Z ¹ , Z, ² Z ³ and Z ⁴ are independently of each other hydrogen, chlorine, bromine or iodine atom, P is 0,1,2 or 3, q is an integer of 0 or 1-5, and r and s are, independently of each other, 0, 1,2 or 3). The method of claim 1, wherein the second monomer is 1,9-nonanediol di (meth) acrylate, 1,12-dodecanediol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, nonaethylene glycol di A copolymer selected from the group consisting of (meth) acrylate, trimethyl, propanetri (meth) acrylate, dipentaerythritol hexa (mat) acrylate, and dipentaerythrolpenta (meth) acrylate monoacetate. The method of claim 1, wherein the third monomer is tribromophenyl methacrylate, tribromophenoxyethyl acrylate 2,2-bis (4-methacryloxyethoxy-3,5-dibromophenyl) propane , Benzyl methacrylate, p-chlorobenzyl methacrylate and p-bromobenzyl methacrylate. The method according to claim 1, comprising 1-70% by weight of the first repeating unit (A), 5-70% by weight of the second repeating unit (B) and 10-80% by weight of the third repeating unit (C). Copolymer. A copolymer according to claim 1 which also contains up to 40% by weight of a repeating unit derived from at least one fourth monomer different from the 1-3 monomers and capable of radical polymerization. 9. The copolymer of claim 8, wherein the fourth monomer is selected from the group consisting of C ₆ -C ₂₃ alkyl (meth) acrylates and polyalkylene glycol mono (meth) acrylates of the general formula: (Meal, R ¹⁰ is a hydrogen atom or a methyl group, R ¹¹ is a hydrogen atom or a methyl group, R ¹² is a hydrogen atom or a lower alkyl group, and t is 1-15). In preparing the copolymer, (a) 1-90% by weight of the first monomer having at least one of the following general formulas (I) (Meal, R ¹ is hydrogen, chlorine or bromine atom or methyl group, R ² is a multicyclic aliphatic hydrocarbon group, and n is 0,1,2 or 3). (b) aliphatic polyhydric alcohols and general formula General formula is an ester with an unsaturated carboxylic acid 1-80% by weight of at least one second monomer having at least two residues of which R 3 is hydrogen, chlorine or bromine or a methyl group, and (C) 5-90 wt% of at least one tertiary monomer capable of producing a single polymer having a refractive index of at least 1.55 and capable of radically-polymerizing, and (d) optionally a high refractive index copolymer, characterized in that the radical-copolymerization reaction is carried out using at least one fourth monomer which is different from the first monomers and capable of radical-polymerization. Manufacturing method. The method of claim 10, wherein the copolymerization group is carried out using cast polymerization. Has a high refractive index, and (X) 1-80% by weight of the repeating unit derived from at least one monomer among the monomers of the following general formulas (III), (V) and (VI), and (Meal, R ₃ is hydrogen, chlorine or bromine atom or methyl group, R ₄ is an alkylene group having 2-18 carbon atoms, At least two of A ₁ , A _2, and A ₃ are of the general formula Group, the rest is an alkanoyl group, At least two of A ₄ -A ₉ are of the general formula Residues of which are alkanoyl groups). (Y) A copolymer containing 5-90% by weight of repeating units derived from at least one monomer capable of producing a single polymer having a refractive index of at least 1.55 and capable of radical polymerization. 13. The copolymer according to claim 12, which also contains up to 40% by weight of a repeat unit which is different from the (X) and (Y) monomers and derived from at least one monomer capable of radical-polymerization. ※ Note: The disclosure is based on the initial application.