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Polymerizable composition, optical material and manufacturing method for same

A technology of polymeric composition and compound, which is applied in optics, optical elements, optical parts, etc., can solve the problems of using imidazoles that have not been specifically disclosed, and achieve the effect of excellent optical physical properties and striae suppression

Active Publication Date: 2015-07-01
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this document does not specifically disclose examples in which imidazoles are used

Method used

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  • Polymerizable composition, optical material and manufacturing method for same
  • Polymerizable composition, optical material and manufacturing method for same
  • Polymerizable composition, optical material and manufacturing method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0166] 2.00 g of catalyst 1,2-dimethylimidazole was added to 8.00 g of internal mold release agent Zelec UN (acid phosphate: registered trademark, manufactured by Stepan Co., Ltd.), and mixed and dissolved at room temperature until a uniform solution was obtained to prepare a catalyst / release agent. Molding agent masterbatch liquid. Add 49.50 g of bis(4-isocyanatocyclohexyl)methane, 8.74 g of 2,5(6)-bis(isocyanatomethyl)-bicyclo[2.2.1]heptane, and further add 1.50 g of Biosorb 583 as an ultraviolet absorber and 0.18 g of the previously prepared catalyst / release agent masterbatch liquid were mixed and dissolved at 20°C. After dissolution, add 37.59 g of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane and 4.17 g of diethylene glycol dimercaptopropionate, and mix and dissolve at 20°C , to make a homogeneous solution. This homogeneous solution was defoamed at 150 Pa for 30 minutes, filtered with a 1 μm Teflon (registered trademark) filter, and poured into a mold formed of a gla...

Embodiment 2

[0168] 3.33 g of the catalyst 1-benzyl-2-methylimidazole was added to 6.67 g of the internal mold release agent Zelec UN, and mixed and dissolved at room temperature until a uniform solution was obtained to prepare a catalyst / release agent masterbatch liquid. Add 49.50 g of bis(4-isocyanatocyclohexyl)methane and 8.74 g of 2,5(6)-bis(isocyanatomethyl)-bicyclo[2.2.1]heptane, and further add 1.50 g Biosorb 583 as an ultraviolet absorber and 0.15 g of the previously prepared catalyst / release agent masterbatch liquid were mixed and dissolved at 20° C., except that the same method as that described in Example 1 was used. Polymerized, a lens was obtained. The performance evaluation of the obtained lenses is summarized in Table-1.

Embodiment 3

[0170] Add 1.00 g of catalyst 1,2-dimethylimidazole and 1.66 g of 1-benzyl-2-methylimidazole to the internal release agent Zelec UN7.34 g, mix and dissolve at room temperature until it becomes a uniform solution, and prepare catalyst / Release agent masterbatch liquid. Add 49.50 g of bis(4-isocyanatocyclohexyl)methane and 8.74 g of 2,5(6)-bis(isocyanatomethyl)-bicyclo[2.2.1]heptane, and further add 1.50 g Biosorb 583 as an ultraviolet absorber and 0.25 g of the previously prepared catalyst / release agent masterbatch liquid were mixed and dissolved at 20° C., except that the same method as that described in Example 1 was used. Polymerized, a lens was obtained. The performance evaluation of the obtained lenses is summarized in Table-1.

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Abstract

　A polymerizable composition according to the present invention comprises: (A) an alicyclic isocyanate compound (a1) that is at least bi-functional and / or an aliphatic isocyanate compound (a2) that is at least bi-functional; (B) a thiol compound that is at least bi-functional and that comprises at least one sulfide bond and / or at least one ester bond; and (C) an imidazole curing catalyst, wherein 5ppm-3000ppm of the imidazole curing catalyst (C) is included relative to the total amount of the isocyanate compound (A) and the thiol compound (B).

Description

technical field [0001] The present invention relates to a polymerizable composition, an optical material and a method for producing the same. Background technique [0002] Compared with inorganic lenses, plastic lenses are lighter, less prone to breakage, and can be dyed, so they have been rapidly popularized in optical components such as eyeglass lenses and camera lenses. Various resins for lenses have been developed and used so far, and a typical example thereof is a thiourethane resin obtained from a polymerizable composition containing an isocyanate compound and a thiol compound. [0003] The following patent documents 1-5 are mentioned as a document related to the plastic lens which consists of a thiourethane resin. [0004] Patent Documents 1 and 2 disclose a polymerizable composition obtained by using an imidazole-based catalyst as a vulcanization accelerator, making sulfur and A compound having an epithio group is reacted, and a polyisocyanate compound and a polyth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/38C08G18/20G02C7/00
CPCC08G18/758C08G18/3876G02B1/041C08G18/2027C08G18/722G02B1/11G02B1/14G02C7/02G02C2202/16C08L75/04C08L81/00G02B1/04
Inventor 龙昭宪末杉幸治
Owner MITSUI CHEM INC
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