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Photochromic polymerizable compositions

A polymer composition and photochromic technology, applied in the direction of color-changing fluorescent materials, optics, optical components, etc.

Inactive Publication Date: 2006-10-25
TRANSITIONS OPTICAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although some progress has been made in enhancing fatigue resistance and improving the performance of photochromic materials, further improvements, even small ones, are needed in terms of fatigue resistance and / or improved performance of photochromic polymer materials improve

Method used

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  • Photochromic polymerizable compositions
  • Photochromic polymerizable compositions
  • Photochromic polymerizable compositions

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0120] The preparation of the chloroformate intermediate and the subsequent reaction with the hydroxyl (meth)acrylate can be carried out by methods known in the prior art. As those skilled in the art know, the reaction of chloroformate groups with hydroxyl functional (meth)acrylates is usually carried out in the presence of acid scavengers, such as alkali metal hydroxides, followed by washing and separating the final A mixture of polyol ((meth)acryloyl carbonate) monomers. In step (b), the molar equivalent ratio of the hydroxyl functional (meth)acrylate to the chloroformate group in the chloroformate intermediate mixture may be less than 1:1. In a non-limiting embodiment, it is at least It is 1:1 (that is: all the chloroformate groups react with the hydroxyl (meth)acrylate). In step (b) of the method, the molar equivalent ratio of the hydroxyl (meth)acrylate to the chloroformate group can be from 1:1 to 1.5:1.0, for example 1.1:1.0.

[0121] In another non-limiting embodiment, the...

Embodiment 1-14

[0214] Table 6 lists the monomers in Examples 1-14 in weight percent. The example is prepared by the following steps: add the monomer composition listed in Table 6 to a suitable container equipped with a stirring device, and stir for 1 hour after the following additives are added: Add 0.15wt% can be obtained by 3M FC-431 fluorocarbon surfactant and 28.0wt% of the photochromic component in Table 5, both weight percentages are based on the total weight of the monomer.

[0215] Example#

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8

9

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11

12

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14

BPA2EO DMA(n)

45

40

30

45

45

45

70

70

70

70

70

70

70

70

Component 1

35

40

30

8.75

17.5

26.25

30

15

0

15

10

0

0

0

Component 2

0

0

0

26.25

17.5

8.75

0 ...

Embodiment 15

[0222] The accelerated aging photochromic optical fatigue percentage test (AWPPPF test) involves preparing the lens in the AC part before or after the aging of the G part, coating the lens with the polymerizable composition in the D part, and measuring the coated lens in the E part Fischer micro-hardness, determine the photochromic performance and fatigue in part F.

[0223] The polymerizable composition of the present invention was added to the coating compositions in Examples 1-8, 10, and 11. Other polymerizable compositions that do not contain the polymerizable composition of the present invention, such as the compositions of Examples 9, 12, 13, and 14, were also tested. Compare the photochromic properties of the coatings with comparable Fischer micro-hardness levels and the results of fatigue measurements to determine whether these parameters have increased or decreased. Since it is generally known that the performance of photochromic compounds can be accelerated in a softer p...

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Abstract

The present invention describes a polymerizable composition comprising a photochromic amount of at least one photochromic compound, at least one substance having at least one carbonate group and at least one hydroxyl group, and at least one A monoisocyanate comprising a substance having at least one unsaturated group. The polymerizable composition may also optionally contain copolymerizable monomers. The invention also describes a photochromic polymer, eg, a photochromic optical element, such as eyeglasses, made from the polymerizable composition of the invention.

Description

[0001] This application claims the priority of the provisional application with the application number 60 / 335,871 and the application date on November 1, 2001. Technical field [0002] The present invention relates to a photochromic composition containing at least one polymerizable substance and a photochromic quantity of at least one photochromic compound. The polymerizable composition may optionally contain other copolymerizable monomers. The photochromic compound can be added to the composition before polymerization or after the polymer is formed. The invention also relates to a photochromic polymer and a photochromic product. Background technique [0003] Photochromism is a phenomenon that includes the color of a photochromic compound or an article containing the compound, a reversible change under exposure to light containing ultraviolet light, and a transition to restore the original color when the ultraviolet light is stopped. Light irradiation sources containing ultraviole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/02G02B1/04G02B1/10G02B5/23C03C17/32C08F2/44C08G18/44C08G18/81C08G64/02C09D4/06
CPCC03C17/32C08G18/44C08G18/8108C08G64/0291C09D4/06C09K9/02G02B5/23Y10S430/163C08F290/062
Inventor C·N·韦尔奇E·M·金L·G·安德森R·道格恩鲍格K·J·斯图尔特
Owner TRANSITIONS OPTICAL INC
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