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

Microparticle containing silicone release coatings having improved anti-block and release properties

A technology for isolating coatings and particles, which can be used in coatings, adhesives, thin material processing, etc., and can solve the problem of expensive silicone materials

Inactive Publication Date: 2006-08-02
RHODIA LTD
View PDF12 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, silicone materials can be relatively expensive, so there is also a need to minimize the amount of silicone material needed to produce the release composition

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
  • Microparticle containing silicone release coatings having improved anti-block and release properties
  • Microparticle containing silicone release coatings having improved anti-block and release properties
  • Microparticle containing silicone release coatings having improved anti-block and release properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] The starting composition of the isolation coating is:

[0121] 60 parts by weight of curable epoxy polyorganosiloxane compound VI, wherein n is 20

[0122] 30 parts by weight of polyorganosiloxane of compound VII, wherein r is 220

[0123] 10 parts by weight of the polyorganosiloxane compound VIII, wherein p is 200, q is 3

[0124] 2.5 parts by weight of cationic initiator

[0125] 1-3 parts of polymer microspheres

[0126] The photoinitiator used in the test compositions was available from Rhodia Corporation as Silcolease(R) UVCata 211, a cationic photoinitiator activated by ultraviolet radiation. Polymer particles are commercially available from Micro Powders Inc under the name FLUO HT(R) polytetrafluoroethylene (PTFE) microspheres. Polymer microspheres were prepared as a dilution in formula (VII), which constituted 33% by weight of the weight of formula (VII).

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
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention is directed to a polymeric microparticle containing silicone release composition having improved slip / shear, anti-block, transfer, and lower release properties. The silicone release composition may be formed of thermal or radiation cured solventless silicone release compositions. The silicone release composition may also be formed of a UV-cationic silicone release composition. The polymeric microparticles are preferably polymeric microspheres. The invention is further directed to the use of such microparticle containing silicone release compositions to coat a substrates formed thereof.

Description

technical field [0001] The present invention relates generally to silicone release coating compositions, the use of such silicone release coating compositions to coat substrates, and release coated substrates formed therefrom. More specifically, the present invention relates to heat-curable, radiation-curable and UV cationic solvent-free silicones having improved slip / shear properties, transfer properties, anti-blocking properties and reduced release properties Barrier coating. Background technique [0002] Silicone release coatings or compositions are well known and are the subject of numerous publications and patents. They are useful in many applications where a relatively non-adhesive surface is desired. In these applications, the release composition is applied to a substrate and allowed to cure. One particularly useful application is the coating of paper, polyethylene film and other materials used in providing release surfaces, pressure sensitive adhesive labels, deco...

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): C08J7/04B29C33/64B32B9/04C08F2/46C08G59/30C08L83/04C09DC09D183/04
CPCC09D183/04C08K7/16C08K7/22C09D5/00C09D7/125C09D7/1291C09D183/06C09J2423/005C09J2427/005C09J2483/005B29C33/64C08G59/306Y10T428/31663C08L2666/66C08L2666/02C08L2666/04
Inventor 让-马克·弗朗西斯迈克尔·D·拉德尔斯图尔特·R·克尔三世杰弗里·胡佛詹姆斯·G·埃利森
Owner RHODIA 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