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

Adhesive sheet

A technology of adhesive sheet and adhesive layer, applied in the direction of adhesive type, ester copolymer adhesive, polyurea/polyurethane adhesive, etc. The effect of excellent stain resistance, good surface sliding

Active Publication Date: 2016-03-30
NITTO DENKO CORP
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesive sheet is directly pasted on the painted surface manually using a squeegee or the like, and there is a problem that the adhesive sheet is wrinkled and damaged because the squeegee cannot slide on the surface of the adhesive sheet.

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
  • Adhesive sheet
  • Adhesive sheet
  • Adhesive sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0132] Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to this. It should be noted that, in the following examples, unless otherwise stated, parts represent parts by weight, and % represents % by weight within the range of common knowledge without problems.

[0133] In addition, the measurement methods and evaluation methods used in the following examples are shown below. In the evaluation of the following stain resistance, the acrylic baking varnish white coating board (manufactured by Nippon Testpanel Co., Ltd.) used as the standard test board had an L* value showing 95.68 to 98.56, an a* value showing -1.26 to -1.01, The panel where the b* value shows a value of 0.16 to 1.52.

[0134] (measurement method and evaluation method)

[0135] (1) Evaluation of flexibility (measurement of load at 5% elongation)

[0136] An acrylic adhesive layer having a thickness of 50 μm was formed on one surface of the substrate to prepare...

manufacture example 1

[0152] (Manufacturing example 1: Preparation of resin composition b1)

[0153] Add a 43% concentration solution based on ethyl acetate of acrylic resin (manufactured by Japan Shokubai Co., Ltd., trade name "hindered amine light stabilizer mixed UV-G301", the hydroxyl value of (meth)acrylic polymer is 45 (KOHmg / g)) 100 parts, isocyanate crosslinking agent (manufactured by Asahi Kasei Chemicals Corporation, trade name "DURANATETSE-100") 28.07 parts, and 108.8 parts of ethyl acetate as a diluting solvent to prepare the resin composition b1 for the surface protective layer.

manufacture example 2

[0154] (Manufacturing example 2: Preparation of resin composition b2)

[0155] 100 parts of a 70% concentration solution based on ethyl acetate of an acrylic resin (manufactured by Nuplex Resins GmbH, trade name "SETALUX DA870BA", hydroxyl value of (meth)acrylic polymer 99 (KOH mg / g)) 100 parts, isocyanate crosslinking agent (Manufactured by SumikaBayerUrethane Co., Ltd., trade name "SUMIDURN3300") 34.00 parts and a mixed solvent of ethyl acetate and xylene (ethyl acetate / xylene=1 / 1wt%) 51.31 parts as a diluting solvent to prepare a surface protection Layer resin composition b2.

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
Shore hardnessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Provided is an adhesive sheet having a surface sliding property and stain resistance. The adhesive sheet comprises at least a base material and an adhesive agent layer, wherein the static friction coefficient of the base material is 0.05 to 1.50 inclusive and the absolute value of the [delta]L* value of the base material is 0.01 to 45.00 inclusive. It is preferred that the load of the base material when the base material is elongated by 5% is 1 to 15 N / cm inclusive. It is also preferred that the stress relaxation percentage of the base material after elongating the base material by 10%, stopping the elongation while keeping this state and then allowing 600 seconds to elapse after the stopping of the elongation is 40 to 100% inclusive.

Description

technical field [0001] The present invention relates to a PSA sheet, in particular to a PSA sheet for protection having surface slipperiness and stain resistance. Background technique [0002] For example, in the automobile and aircraft industries, a PSA sheet is sometimes attached for the purpose of preventing damage to the painted surface of the vehicle body or for marking. This PSA sheet is directly pasted on the painted surface manually using a squeegee or the like, and there is a problem that the PSA sheet becomes wrinkled, damaged, etc. because the squeegee cannot slide on the surface of the PSA sheet. [0003] In addition, dirt, rainwater containing dirt, washing water for removing dirt, etc. may adhere to the adhesive sheet attached to protect the surface, etc., so surface contamination resistance is required. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Application Laid-Open No. 59-41376 Contents of the inv...

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): C09J7/02B32B27/00C09J201/00C09J7/25
CPCC08G18/5015C08G18/622C09J175/04C09J2475/006C09J7/25C09J2301/312C09J2301/414C09J133/08C09J2203/306C09J2433/00
Inventor 井本荣一中川善夫西川健一山本康徳
Owner NITTO DENKO CORP
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