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Method for producing internal mold release agent for optical material, internal mold release agent for optical material, and polymerizable composition including the same

A technology of polymerizable composition and internal mold release agent, which is applied in chemical instruments and methods, optics, optical components, etc., can solve the problem of inability to improve the white turbidity of resin, and achieve the improvement of transparency, suppression of white turbidity, and mold release. excellent effect

Active Publication Date: 2012-07-18
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even in the method described in Patent Document 6, sometimes the white turbidity of the resin cannot be improved.

Method used

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  • Method for producing internal mold release agent for optical material, internal mold release agent for optical material, and polymerizable composition including the same
  • Method for producing internal mold release agent for optical material, internal mold release agent for optical material, and polymerizable composition including the same
  • Method for producing internal mold release agent for optical material, internal mold release agent for optical material, and polymerizable composition including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] In a reaction flask equipped with a stirring bar, a thermometer, and a Dimroth condenser (Dimroth condenser), the phosphoric acid ester compound, namely ZelecUN (the total alcohol concentration of 1-octanol and 1-decanol: 2.3% by weight) of STEPAN Company's trade name 200 g and 4.0 g of 1-octanol were uniformly mixed to obtain a phosphoric acid ester compound-containing composition having a total alcohol concentration of 4.2% by weight. The temperature was gradually raised from room temperature, and the inner temperature was kept at 100° C. while stirring uniformly for 10 hours. After the stirring was completed, the internal temperature was cooled to room temperature, and then, it was discharged from the reaction flask to obtain 202 g of an internal mold release agent for optical materials.

[0143] 30.5 g of m-xylylene diisocyanate, 39.5 g of pentaerythritol tetrakis(3-mercaptopropionate), and 0.0056 g of di-n-butyltin dichloride (80 ppm relative to the total weight of...

Embodiment 2

[0145] In a reaction flask equipped with a stirring bar, a thermometer, and a Dimroth condenser, 200 g of a phosphoric acid ester compound, the trade name ZelecUN (the total alcohol concentration of 1-octanol and 1-decanol: 2.3% by weight) and 1- 0.6 g of octanol was uniformly mixed to obtain a phosphoric acid ester compound-containing composition having a total alcohol concentration of 2.6% by weight. The temperature was gradually raised from room temperature, and the inner temperature was kept at 100° C. while stirring uniformly for 18 hours. After completion of the stirring, the internal temperature was cooled to room temperature, and then discharged from the reaction flask to obtain 199 g of an internal mold release agent for optical materials.

[0146] 30.5 g of m-xylylene diisocyanate, 39.5 g of pentaerythritol tetrakis(3-mercaptopropionate), and 0.0056 g of di-n-butyltin dichloride (80 ppm relative to the total weight of the polymerizable composition) at 20°C , UV abso...

Embodiment 3

[0148] In a reaction flask equipped with a stirring bar, a thermometer, and a Dimroth condenser, 200 g of a phosphoric acid ester compound, the trade name ZelecUN (the total alcohol concentration of 1-octanol and 1-decanol: 2.3% by weight) and 1- 2.0 g of octanol was uniformly mixed to obtain a phosphoric acid ester compound-containing composition having a total alcohol concentration of 3.3% by weight. The temperature was gradually raised from room temperature, and the inner temperature was kept at 100° C. while stirring uniformly for 10 hours. After completion of the stirring, the internal temperature was cooled to room temperature, and then discharged from the reaction flask to obtain 199 g of an internal mold release agent for optical materials.

[0149]30.5 g of m-xylylene diisocyanate, 39.5 g of pentaerythritol tetrakis(3-mercaptopropionate), and 0.0056 g of di-n-butyltin dichloride (80 ppm relative to the total weight of the polymerizable composition) at 20°C , UV absor...

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Abstract

Provided is a method for producing an internal mold release agent for an optical material comprising a step for heating, to within a range of 80 C to 140 C, a composition containing (a) a phosphate ester compound and (b) an alcohol compound formed from a C1-10 aliphatic alcohol and / or aromatic alcohol such that, when the total amount of (a) and (b) is 100 wt%, the alcohol compound (b) content is 2.5 wt% or higher.

Description

technical field [0001] The present invention relates to a method for producing an internal release agent for optical materials, an internal release agent for optical materials, and a polymerizable composition containing the same. Background technique [0002] Compared with inorganic lenses, plastic lenses are lighter, less shatterable, and can be dyed. Therefore, in recent years, plastic lenses have rapidly spread as optical elements such as spectacle lenses and camera lenses. So far, a variety of resin raw materials for lenses have been developed and used, and as a representative example therein, polythiourethane resin obtained from a polymerizable composition containing a polythiol compound and a polyisocyanate compound (Patent Document 1 ~5). [0003] When a plastic lens made of a polythiourethane resin is produced by cast polymerization, an internal mold release agent containing a phosphate compound or the like may be added to the polymerizable composition in order to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/38B29C33/60C08L75/04C09K3/00G02B1/04
CPCC08G18/7642C08G2125/00G02B1/041B29C33/60C08G18/3876C08L81/00C08L75/04C08K5/521C08K5/05C08G18/38
Inventor 河户伸雄田中守
Owner MITSUI CHEM INC
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