Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Photosensitive silicone resin composition

A technology of resin composition and silicone, which is applied in the direction of optomechanical equipment, optics, instruments, etc., can solve the problems of loss of transparency of molded body, poor refractive index, large particle size of inorganic filler, etc.

Inactive Publication Date: 2013-04-24
ASAHI KASEI KK
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, although the coefficient of linear expansion decreases, since the particle size of the inorganic filler is large, it has a refractive index difference with the silicone resin, thereby losing the transparency of the molded body.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Photosensitive silicone resin composition
  • Photosensitive silicone resin composition
  • Photosensitive silicone resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0314] In a 500mL eggplant-shaped flask, put 25.76g (0.111mol) of 3-methacryloxypropyl (methyl) dimethoxysilane (hereinafter referred to as MEDMO), 15.10g (0.111mol) of methyl trimethyl Oxysilane (hereinafter referred to as MTMS), 10g of ethanol, and stirred. In another container, 19.96 g of distilled water and 0.004 g of 10% hydrochloric acid were weighed and mixed, and then added dropwise to the aforementioned 500 mL eggplant-shaped flask over 10 minutes using a dropping funnel. After completion of the dropwise addition, a cooling tube was installed, and reflux was performed at 80° C. for 2 hours under a nitrogen stream using an oil bath to obtain a reaction liquid 1 containing a polysiloxane compound (a).

[0315]Into a 500mL eggplant-shaped flask, put 50g of PL-1SL (water-dispersed silica particles with an average primary particle size of 12nm and a concentration of 20% by mass manufactured by Fuso Chemical Industry Co., Ltd.) (Silicon dioxide particles (b)), 50g of ethano...

Embodiment 2

[0320] Into a 500 mL eggplant-shaped flask, 15.46 g (0.067 mol) of MEDMO, 9.06 g (0.067 mol) of MTMS, and 10 g of ethanol were charged and stirred. In another container, 11.97 g of distilled water and 0.004 g of 10% hydrochloric acid were weighed and mixed, and then added dropwise to the aforementioned 500 mL eggplant-shaped flask over 10 minutes using a dropping funnel. After completion of the dropwise addition, a cooling tube was installed, and reflux was performed at 80° C. for 2 hours under a nitrogen stream using an oil bath to obtain a reaction liquid 2 containing a polysiloxane compound (a).

[0321] Into a 500 mL eggplant-shaped flask, 110 g of PL-1SL (silica particles (b)) and 100 g of ethanol were charged and stirred. Next, using the dropping funnel, the reaction solution 2 cooled to room temperature was dropped into the eggplant-shaped flask over 20 minutes, and stirred at room temperature for 30 minutes. After stirring, a cooling tube was installed, and reflux was...

Embodiment 3

[0326] In a 500mL eggplant-shaped flask, put 5.88g (0.025mol) MEDMO, 7.54g (0.030mol) 3-methacryloxypropyltrimethoxysilane (hereinafter referred to as MEMO), 6.67g (0.035mol) Cyclohexylmethyldimethoxysilane (hereinafter referred to as CyMDMS) and 10 g of ethanol were stirred. In another container, 7.65 g of distilled water and 0.004 g of 10% hydrochloric acid were weighed and mixed, and then added dropwise to the aforementioned 500 mL eggplant-shaped flask over 10 minutes using a dropping funnel. After completion of the dropwise addition, a cooling pipe was installed, and reflux was performed at 80° C. for 2 hours under a nitrogen flow using an oil bath to obtain a reaction liquid 3 containing a polysiloxane compound (a).

[0327] Into a 500 mL eggplant-shaped flask, 120 g of PL-1SL (silica particles (b)) and 100 g of ethanol were charged and stirred. Next, using the dropping funnel, the reaction liquid 3 cooled to room temperature was dropped into the above-mentioned eggplan...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

Provided is a resin composition which gives a cured product of a photocurable resin having good crack resistance even when formed into a thick film, and capable of maintaining a low coefficient of linear expansion, low thermal weight loss, and a low shrinkage factor. This photosensitive silicone resin composition comprises (A) a silica particle-containing condensation reaction product and (B) a photopolymerization initiator, and is characterized in that the silica particle-containing condensation reaction product (A) is a condensation reaction product of a polysiloxane compound (a) comprising a hydrolytic condensation product of one or more silane compounds represented by the following general formula (1): R1 n1SiX1 4-n1 (wherein R1, n1, and X1 are defined in the claims) and / or the silane compound, and silica particles (b), and has a terminal structure: Si-O-Y (wherein Y is defined in the claims) which satisfies the following formula (2): 0 3 3] / ([Si-O-R2] + [Si-O-SiR3 3]) = 1 (wherein R2 and R3 are defined in the claims), and has a photopolymerizable functional group.

Description

technical field [0001] The present invention relates to a photosensitive silicone resin composition mainly for optical use, which can be used as a plastic lens, a replica material, a surface coating material and an imprint material. Background technique [0002] As an optical material, glass is widely used due to its transparency, high heat / light resistance, dimensional stability, etc. However, it is required to replace it with resin due to its heavy weight, easy cracking, high cost, and low productivity, etc. Various optical resins have thus been developed. As the optical resin, thermoplastic resins such as polycarbonate, polymethyl methacrylate, and cycloolefin polymers are widely used. However, thermoplastic resins have limited use due to insufficient reflow heat resistance. [0003] Silicone thermosetting resins are widely used as optical resins with excellent reflow heat resistance, but their disadvantages are that the siloxane bonds of silicone thermosetting resins h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/20C08F299/08C08G77/14C08L83/06C08L83/07G03F7/075
CPCG03F7/0757G03F7/0047C08K9/06C08F299/08C08G77/14C08G77/20C08K5/0025C08L83/04C08L83/06G03F7/075C08L83/00
Inventor 津金菜采斋藤秀夫日下部透仲道元则
Owner ASAHI KASEI KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com