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Resin composition for optical material and method for production thereof

A technology of resin composition and optical materials, applied in the field of optical materials, can solve the problems of small retardation and unusability, and achieve the effects of small retardation, excellent transparency and weather resistance

Active Publication Date: 2014-02-12
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the conventional resin compositions disclosed in these Patent Documents 1 to 3 do not necessarily have a sufficiently small retardation, and cannot be used for optical materials requiring a smaller retardation.

Method used

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  • Resin composition for optical material and method for production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0133] 100 parts by weight of SUMIPEX (registered trademark) MHF and 3.1 parts by weight of SD2201W were dry-blended with a kneader (manufactured by Nippon Steel Works, Ltd., TEX-30) at 250°C and 200rpm By kneading, a resin composition is obtained.

[0134] The obtained resin composition was injection molded at 250° C. using an injection molding machine (manufactured by Toshiba Machine Co., Ltd., IS-130) to obtain a molded body (optical material) having a thickness of 3 mm. The above-mentioned physical properties (total light transmittance, haze, weather resistance, birefringence, heat resistance, fluidity, and mechanical properties) were measured for the obtained molded body. The results are shown in Table 1.

Embodiment 2、3 and comparative example 1～3）

[0136] Except having used the resin described in Table 1 at the ratio described in Table 1, the resin composition was obtained by the procedure similar to Example 1, respectively.

[0137] A molded body having a thickness of 3 mm was obtained in the same procedure as in Example 1 except that the obtained resin composition was used. The above-mentioned physical properties were measured for each of the obtained molded articles. The results are shown in Table 1.

reference example 1）

[0139] A molded body having a thickness of 3 mm was obtained in the same procedure as in Example 1 except that an acrylic resin (SUMIPEX (registered trademark) MHF) was used alone instead of the resin composition obtained in Example 1. The above physical properties were measured for the obtained molded body. The results are shown in Table 1.

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Abstract

The present invention provides a resin composition for an optical material and a method for production thereof. The resin composition for the optical material of the present invention comprises an acrylic acid series resin and a makrolon resin, the above makrolon resin possesses 1000-1500 viscosity average molecular weigh, and the content of the above makrolon resin, relative to the 100 parts by weight of the above acrylic acid series resin is 2 parts-10 parts.

Description

technical field [0001] The present invention relates to a resin composition for an optical material, a method for producing the same, and an optical material obtained by molding the resin composition for an optical material. Background technique [0002] A resin composition of an acrylic resin and a polycarbonate resin is known as a resin excellent in transparency and usable for optical materials. For example, Patent Documents 1 to 3 disclose resin compositions of acrylic resins and polycarbonate resins as resin compositions usable for optical materials. [0003] However, the conventional resin compositions disclosed in these Patent Documents 1 to 3 do not necessarily have sufficiently small phase differences, and cannot be used for optical materials requiring even smaller phase differences. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 5-32846 [0005] Patent Document 2: Japanese Patent Laid-Open No. 2011-157412 [0006] Patent Document 3: Japanes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/00C08L33/10C08L33/08C08L69/00G02B5/30G02B1/10G02B1/16
CPCG02B1/04G02B5/30G02B6/0011C08L33/08C08L69/00B29C48/08B32B27/365
Inventor 大松一喜赤石聪神野彩乃
Owner SUMITOMO CHEM CO LTD
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