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(Meth)acrylate copolymer for syrup and resin composition thereof

A resin composition and acrylate technology are applied in the field of (meth)acrylate copolymer for slurry and its resin composition to achieve the effects of excellent solubility and excellent transparency

Active Publication Date: 2009-09-23
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, slurries that can be used for the above-mentioned copolymers are unknown

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] 150 ml of toluene, 32 g of 1-adamantyl methacrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.), 18 g of methoxypolyethylene glycol #400 methacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd.) were added to the glass container. , M-90G) and 0.027 g of 2,2'-azobis(2-methylbutyronitrile) [manufactured by Wako Pure Chemical Industries, Ltd.] were reacted at 80° C. for 2 hours under a nitrogen atmosphere. An excess amount of methanol was added to the resulting solution to precipitate a copolymer, followed by vacuum drying at 80° C. for 4 hours. The obtained copolymer was 26 g.

[0073] pass 1 H-NMR analysis shows that: the monomer units from 1-adamantyl methacrylate and methoxypolyethylene glycol #400 methacrylate are respectively 72% (mass) and 28% (mass), using GPC The measured molecular weight (Mw) was 250,000 in terms of polystyrene.

[0074] 5.6 g of 1-adamantyl methacrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.)...

Embodiment 2

[0077] Add 25 g of 1-adamantyl methacrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.), 25 g of stearyl methacrylate (manufactured by Mitsubishi Rayon Co., Ltd., ACRYESTER S) and 0.027 g of 2,2 to 150 ml of toluene. '-Azobis(2-methylbutyronitrile) [manufactured by Wako Pure Chemical Industries, Ltd.] was reacted at 80° C. for 2 hours under a nitrogen atmosphere.

[0078] An excess amount of methanol was added to the resulting solution to precipitate a copolymer, followed by vacuum drying at 80° C. for 4 hours. The obtained copolymer was 30 g. pass 1 H-NMR analysis shows that: the monomer units derived from 1-adamantyl methacrylate and stearyl methacrylate contained in the copolymer are 59% (mass) and 41% (mass) respectively, The molecular weight (Mw) measured by GPC was 277,000 in terms of polystyrene.

[0079] To 22 g of this copolymer, 38.5 g of 1-adamantyl methacrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.), 38.5 g of stearyl methacr...

Embodiment 3

[0083] Add 6.5g 1-adamantyl methacrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.), 2.8g polytetramethylene glycol dimethacrylate (manufactured by Mitsubishi Rayon Co., Ltd.) to the 0.7g copolymer obtained in Example 1. , ACRYESTER PBOM), heated to 90 ° C to dissolve the copolymer. The solution was cooled to room temperature, and then 0.04 g of 1,1-bis(tert-hexylperoxy)cyclohexane (manufactured by NOF Corporation, Perhexa HC) and 0.04 g of bis(4-tert-butylcyclohexyl peroxydicarbonate) were added. ) ester [manufactured by NOF Corporation, Perloyl TCP] and mixed to obtain a curable composition.

[0084] The viscosity of this curable composition at 25°C was 250 mPa·s. This curable composition was poured into a tank made by sandwiching a 3 mm thick Teflon spacer between two glass plates, heated in an oven at 70°C for 3 hours, then at 160°C for 1 hour, and then cooled to room temperature to obtain a colorless and transparent plate-like cured product. The physic...

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Abstract

Disclosed is a copolymer for a syrup, which comprises (A) 1 to 60 mass% of at least one (meth)acrylate compound selected from a (meth)acrylate-modified silicone oil, an alkyl (meth)acrylate, a monoalkylene glycol (meth)acrylate and a polyalkylene glycol (meth)acrylate and (B) 99 to 40 mass% of a (meth)acrylate compound having an alicyclic hydrocarbon group having 6 or more carbon atoms bonded thereto via an ester bonding. Also disclosed is a (meth)acrylate composition comprising a (meth)acrylate monomer and 1 to 60 mass% of the above-mentioned (meth)acrylate copolymer. Further disclosed is a cured product of the (meth)acrylate composition. The (meth)acrylate copolymer has excellent solubility in a (meth)acrylate compound having an alicyclic ester substituent. The (meth)acrylate resin composition comprising the copolymer particularly has excellent transparency and enables to produce a cured product which is stable against ultraviolet ray and heat, and therefore can be suitably used as a material relating to a lens, an illumination lamp, an automobile, a display, an optical semiconductor or the like.

Description

technical field [0001] The present invention relates to: providing a (meth)acrylate copolymer for a resin having excellent stability to ultraviolet rays and heat and a resin composition thereof; in particular, the present invention relates to: providing a solution that is dissolved in a (meth)acrylate compound A (meth)acrylate copolymer for sizing of acrylic resin with excellent properties, good UV resistance and heat resistance, and a resin composition thereof. Background technique [0002] Acrylic resins are widely used in materials such as lenses, lighting, automobiles, displays, and optical semiconductors due to their excellent optical properties. [0003] When processing an acrylic resin into a plate shape, there is known a method of pouring a composition containing a (meth)acrylate monomer into a mold and performing cast polymerization. During the cast polymerization, the viscosity of the composition is adjusted in order to prevent the composition from leaking from th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F220/12
CPCC08F285/00C08F290/06C08F220/26C08F290/061C08F220/10C08F265/06C08F290/068C08F265/04C08L51/003C08F220/16C08L2666/02C08F220/12
Inventor 太田刚行政慎一小幡宽武部智明
Owner IDEMITSU KOSAN CO LTD
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