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Polymer polyols, compositions and uses thereof

A technology of polyols and polymers, which is applied in optical components, polyurea/polyurethane coatings, glasses/goggles, etc., and can solve problems such as scratches on the photochromic layer, increased manufacturing costs, and contamination

Active Publication Date: 2019-04-16
SHANGHAI GANTIAN OPTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the coated coating does not meet the product requirements and the lens is finally discarded, the manufacturing cost will be greatly increased and the product profit will be reduced, and the manufacturer will suffer a large economic loss
[0004] In addition, some manufacturers of photochromic lenses buy directly from other manufacturers of photochromic coatings and need to apply their own proprietary special organosilane hard coats and anti-reflective coatings. The packaging, transportation, unpacking, cleaning, scrubbing and other processes in the process may cause scratches, stains, and corrosion of the photochromic layer, so the photochromic layer is required to be scratch-resistant and solvent-resistant

Method used

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  • Polymer polyols, compositions and uses thereof
  • Polymer polyols, compositions and uses thereof
  • Polymer polyols, compositions and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Formula I A 、II A 、III A Shown compound and diethylene glycol butyl ether are placed in the reactor with stirring and heating device, feed nitrogen into the reactor, start stirring and heating device, dropwise add azobisisobutyronitrile (initiator), And keep at 130°C-140°C for 2-3 hours, cool to room temperature, transfer to a suitable container, evaporate the solvent, and the residue is the target product (abbreviated as "polymer polyol-1").

[0044]

[0045] Take the added material gross weight as 100%, wherein, formula I A The shown compound accounts for 29.5wt%, formula II A The shown compound accounts for 25wt%, formula III A The shown compound accounts for 25 wt%, diethylene glycol butyl ether accounts for 20 wt%, and the initiator accounts for 0.5 wt%.

Embodiment 2

[0047] Except changing the proportion of added material (that is: be 100% with added material gross weight, wherein, formula I A The shown compound accounts for 24.5wt%, formula II A The shown compound accounts for 27.5wt%, formula III A Shown compound accounts for 27.5wt%, diethylene glycol butyl ether accounts for 20wt%, and initiator accounts for 0.5wt%) except that, all the other steps and conditions are identical with embodiment 1, obtain target object (abbreviated as "polymer polyol- 2").

[0048] Preparation of Silicone Resin (OSEM)

Embodiment 3

[0050] 15 parts by weight of polymer polyol-1, 15 parts by weight of methyltriethoxysilane, 15 parts by weight of ethyl orthosilicate, 25 parts by weight of KH560, 3 parts by weight of KH550 , 6.5 parts by weight of vinyl trimethoxysilane, 10 parts by weight of a mixture of methanol and tert-butanol in equal proportions, 10 parts by weight of water and 0.5 parts by weight of tris(acetylacetonate) aluminum placed in a stirring That is, in the reactor of the temperature control device, nitrogen gas is passed into the reactor, heated and stirred, and kept at 40°C to 50°C for 3 hours to 5 hours, and the added alcohol solvent and water are evaporated under reduced pressure, and the remaining The object is the target object (the silicone resin of the present invention, abbreviated as "OSEM-A").

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Abstract

The present invention relates to a polymer polyol and its composition and use. The polymer polyol is: a copolymer obtained by copolymerization of hydroxyl-containing acrylate and non-hydroxyl-containing acrylate. The composition includes: matrix resin, the polymer polyol described in the invention and a photochromic compound, and the hydroxyl solid content in the composition is 1.0%-6.0%. The composition provided by the present invention is a good photochromic coating composition (or known as photochromic coatings), which are suitable for the preparation of photochromic coated articles for ophthalmic use.

Description

technical field [0001] The present invention relates to a polymer polyol and its composition and use, in particular to a copolymer composed of hydroxyl-containing acrylate and non-hydroxyl-containing acrylate and its composition and use. Background technique [0002] The method of setting a color-changing layer on a transparent plastic with a coating containing a photochromic compound is called a coating method. In theory, this method can simply impart photochromic properties to any lens substrate, because it has no lens substrate. Due to the constraints of material requirements, the method has been developed rapidly. [0003] When applying photochromic coatings to plastic substrate surfaces, scratches and other similar defects can result from physical contact, cleaning and exposure of the photochromic coating to the external environment. In some cases, when the surface of the coating is polluted by dust and impurities, the manufacturer needs to clean it with a cleaning sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/28C08F220/14C08F220/18C08L75/04C08L33/00C08L61/20C08L83/10C08G77/442C09D133/14C09D175/04G02B1/10
CPCC08F220/14C08G77/442C08L33/00C08L61/20C08L75/04C08L83/10C09D133/14C09D175/04C08F220/1804C08F220/286G02B1/10C08G18/222C08G18/4063C08G18/4202C08G18/4277C08G18/44C08G18/61C08G18/6254C08G18/6295C08G18/8077C08G77/04C08L71/00C08L71/02G02B1/04G02B5/23G02C7/102G02C7/108C08K5/00C08L83/00C08F220/20C08G18/6229C08G18/73C08G18/755C08G18/758C08G18/7642C08G77/08C08K5/1545C08K5/23
Inventor 甘家安闫永浩蒋翼杨继文宋熊荣
Owner SHANGHAI GANTIAN OPTICAL MATERIALS
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