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

OCA optical adhesive tape

A technology of optical adhesive layer and adhesive tape, which is applied in the direction of adhesives, non-polymer adhesive additives, film/sheet adhesives, etc. It can solve the problems of poor heat resistance, rapid curing, difficult bonding, and difficult filling bonding and other problems, to achieve the effect of improving heat resistance, improving the brittleness of the adhesive layer, and increasing heat resistance

Inactive Publication Date: 2016-07-20
CHANGSHU LIANGYI ADHESIVE TAPE IND CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shortcomings of acrylate adhesives are also more obvious.
First of all, the heat resistance of acrylate adhesives is poor, and it cures quickly and is difficult to be used for large-area bonding. Without thickening, it is difficult to use for filling bonding

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
  • OCA optical adhesive tape
  • OCA optical adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

experiment example

[0018]

[0019] The OCA optical adhesive tape of the present invention has better bonding performance to various materials, such as SUS board, acrylic board, glass plate, etc., and the light transmission of the OCV optical adhesive tape is better, which solves the problem in the market. The existing liquid optical glue (LOCA), because the thickness is not easy to control, so the curing shrinkage is easy to generate bubbles. Moreover, it is easy to cause pollution and the technical problems of inconvenient operation, and it has better heat resistance, and the holding force is greater than 100 hours at a high temperature of 80°C, which solves the problem of poor heat resistance of ordinary acrylic optical adhesives.

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

No PUM Login to View More

Abstract

The invention discloses an OCA optical adhesive tape. The OCA optical adhesive tape has a three layer structure, and comprises a lightly peeled PET release membrane layer, an optical rubber layer, and a heavily peeled PET release membrane layer from top to bottom; wherein the optical rubber layer is composed of the following raw materials in parts by weight: 90 to 110 parts of cyanoacrylate, 6 to 8 parts of polypropionate, 0.5 to 1 part of DL171, 1 to 5 parts of di-sec-octyl phthalate, and 0.05 to 0.5 part of pentaerythritol. The provided OCA optical adhesive tape has the advantages of good heatproof and adhesive properties.

Description

technical field [0001] The invention relates to an adhesive tape, in particular to an OCA optical adhesive tape. Background technique [0002] OCA optical glue is one of the raw materials for important touch screens. It is made of optical acrylic adhesive without base material, and then laminated a layer of release film on the upper and lower base layers. It is a double-sided adhesive tape without base material. It is the best adhesive for touch screen. [0003] Its advantages are clarity, high light transmittance (full light transmittance >99%), high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance, controlled thickness, uniform spacing, and long-term use There will be no problems of yellowing (yellowing), peeling and deterioration. [0004] OCA optical glue is divided into two categories, one is resistive, and the other is capacitive. The resistive optical glue can be divided into 50um and 25um according to the thickness...

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): C09J7/00C09J4/04C09J11/08C09J11/06
Inventor 朱惠良
Owner CHANGSHU LIANGYI ADHESIVE TAPE IND CO LTD
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