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Light-cured composition

A technology of light curing and composition, applied in the direction of instruments, identification devices, seals, etc.

Inactive Publication Date: 2014-03-05
ZHONGCHAO SPECIAL SECURITY TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although various photocurable compositions have their own characteristics, they cannot really be used for the reproduction of fine images

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0072] Component Weight (g)

[0073] Liquid Aliphatic Polyurethane Acrylate 25

[0074] (Photomer 6019, Corning Chemical Co., Ltd.)

[0075] Solid acrylic resin (Elvacite 4054, Lucite, UK) 5

[0076] Monofunctional monomer (SR 335, Sartomer) 30

[0077] Difunctional monomer (SR 306, Sartomer Company) 20

[0078] Trifunctional monomer (SR 444, Sartomer) 12

[0079] Leveling agent (Rad 2500, Dibang Chemical Co., Ltd.) 0.3

[0080] Antioxidant (Irganox 1035, Ciba-BASF) 0.3

[0081] Photoinitiator (IRGACURE 184, Ciba-BASF) 3

[0082] Weigh 30g of monofunctional monomer (SR 335) into a 200ml beaker, then weigh 20g of difunctional monomer (SR 306) into the beaker, stir evenly, and finally weigh 12g of trifunctional monomer (SR444) into the beaker, Stir well. Add 5 g of solid acrylic resin (Elvacite 4054) and stir until completely dissolved. Weigh 25g of aliphatic polyurethane acrylate (Photomer 6019) into a beaker, stir in a water bath at 40°C-50°C for half an hour, weigh 0...

Embodiment 12

[0084] Component Weight (g)

[0085] Aliphatic epoxy acrylate 25

[0086] (UV 1221-100, Chiba Gosei Chemical Plant)

[0087] Solid acrylic resin (Elvacite 4054, Lucite, UK) 5

[0088] Monofunctional monomer (SR 339, Sartomer) 30

[0089] Difunctional monomer (SR 306, Sartomer Company) 20

[0090] Senior monomer (SR 399, Sartomer) 12

[0091] Leveling agent (Rad 2500, Dibang Chemical Co., Ltd.) 0.3

[0092] Antioxidant (Irganox 1035, Ciba-BASF) 0.3

[0093] Photoinitiator (DAROCUR 1173, Ciba-BASF) 3

[0094] Weigh 30g monofunctional monomer (SR 339) into a 200ml beaker, then weigh 20g difunctional monomer (SR 306) into the beaker, stir evenly, and finally weigh 12g high functional monomer (SR399) into the beaker, stir uniform. Add 5 g of solid acrylic resin (Elvacite 4054) and stir until completely dissolved. Weigh 25g of aliphatic epoxy acrylate (UV1221-100) into a beaker, stir in a water bath at 40°C-50°C for half an hour, then weigh 0.3g of leveling agent (Rad 2500)...

Embodiment 13

[0096] Component Weight (g)

[0097] Aliphatic polyurethane acrylate 25

[0098] (Photomer 6019, Corning Chemical Co., Ltd.)

[0099] Solid acrylic resin (Elvacite 4054, Lucite, UK) 5

[0100] Monofunctional monomer (SR 339, Sartomer) 40

[0101]Solid monomer (9-vinylcarbazole, Beijing Hengye COSCO Chemical Co., Ltd.) 8

[0102] Leveling agent (Rad 2500, Dibang Chemical Co., Ltd.) 0.2

[0103] Antioxidant (Irganox 1035, Ciba-BASF) 0.2

[0104] Photoinitiator (IRGACURE 500, Ciba-BASF) 2

[0105] Weigh 30g of monofunctional monomer (SR 339) into a 200ml beaker, then weigh 8g of solid monomer (9-vinylcarbazole) into the beaker, stir in a 40°C-50°C water bath until dissolved. Add 5 g of solid acrylic resin (Elvacite 4054) and stir until completely dissolved. Weigh 25g of aliphatic polyurethane acrylate (Photomer 6019) into a beaker, stir in a water bath at 40°C-50°C for half an hour, weigh 0.3g of leveling agent (Rad 2500), 0.3g of antioxidant (Irganox 1035 ) and 3g of pho...

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Abstract

The invention discloses a light-cured composition. The light-cured composition comprises about 15 to 75 wt% of a resin, wherein the resin comprises a liquid aliphatic (methyl / ethyl) acrylate oligomer and a solid acrylate polymer and the liquid aliphatic (methyl / ethyl) acrylate oligomer contains at least one of a urethano group, an epoxy group or a hydroxyl group, about 20 to 80 wt% of a monomer mixture, wherein the monomer mixture comprises a mixture of (methyl / ethyl) acrylates respectively having a functional group, two functional groups and three functional groups or more than three functional groups, and / or a mixture of a carbazole-containing solid monomer and a (methyl / ethyl) acrylate having a functional group, and about 1 to 12 wt% of one or two photoinitiators. The light-cured composition is colourless and transparent. After curing, the light-cured composition has the advantages of good optical properties and demolding properties, low contractibility rate, no need of oxygen inhibition, and no stickiness of the surface.

Description

technical field [0001] This application relates to compositions. More specifically, the present application relates to photocurable compositions for bearing fine structure images. Background technique [0002] Generally, thermal molding technology is used to realize the replication of some microstructure images, that is, the stamper with the image is pressed onto the material coated with the dry image-bearing layer through high temperature and high pressure, and the stamper is withdrawn and accompanied by rapid cooling, with fine structure. An image is formed on the image bearing layer. Since general substances expand at high temperatures and contract at high pressures, the fine reproduction of the image structure that needs to be reproduced will also be affected. [0003] With the development of technology, anti-counterfeiting products have higher requirements for the brightness of the anti-counterfeiting logo image, and have a more refined design for the structure of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D4/06C08J7/04G09F3/00
Inventor 封敏宇张昊宇董林茂吴远启周赟蔡翔刘会涛刘立民
Owner ZHONGCHAO SPECIAL SECURITY TECH