Fluorinated Organopolysiloxane Release Agent for Silicone Adhesive Releasability
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Solution Overview
Problem
Conventional release agent compositions exhibit poor releasability from silicone-based adhesive agents, and the releasability is further compromised when pressure is applied, especially in the production of long release sheets and laminated bodies.
Innovation Solution
A release control agent comprising an organopolysiloxane with 15 to 29 mol % fluorine atom-containing organic groups and no hydrosilylation reactive groups, combined with an organohydrogenpolysiloxane and a hydrosilylation reaction catalyst, to form a silicone release agent composition that ensures excellent releasability even under pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional release agent compositions are used, then releasability from organic resin-based adhesive materials is excellent, but releasability from silicone-based adhesive agents is poor
Solution Approach 1:
The invention changes the chemical composition parameters of the release agent by introducing fluorine atom-containing organic groups with specific content (15-29 mol %) and eliminating hydrosilylation reactive groups. This parameter modification enables the release agent to achieve excellent releasability from silicone-based adhesive agents while maintaining compatibility with other adhesive types, thereby resolving the contradiction between reliability for specific adhesive types and adaptability across different adhesive categories.
2Ease of manufacture
If winding pressure is applied to the central part of the wound material, then the release sheet can be transported and stored, but the release layer becomes difficult to be released from the adhesive material
Solution Approach 1:
The invention creates a composite release agent system combining fluorine atom-containing organopolysiloxane (15-29 mol %) with specific organopolysiloxane components. This composite material structure provides both pressure resistance and excellent releasability, allowing the release layer to maintain its releasing capability even after undergoing winding pressure during transport and storage, thus resolving the contradiction between ease of manufacture and reliability after pressure treatment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a release agent composition with enhanced releasability from silicone-based adhesive agents, maintaining effectiveness even after pressure treatment, and does not significantly affect the adhesive strength or adhesion to various substrates.
Implementation Method 1
an organopolysiloxane having from 15 to 29 mol % of a fluorine atom-containing organic group in each molecule
Implementation Method 2
having no hydrosilylation reactive group
Data Source
AI summary
The present invention provides a release control agent for producing a release agent composition that has sufficient releasability from a silicone-based adhesive agent and that exhibits excellent releasability even when pressure is applied to a cured product; a silicone release agent composition containing such a release control agent; a release sheet having a cured layer formed from the cured product of the silicone release agent composition; and a laminated body having the release sheet and an adhesive layer. The present invention includes a release control agent containing from 15 to 29 mol % of a fluorine atom-containing organic group in each molecule, and an organopolysiloxane having no hydrosilylation reactive group; a silicone release agent composition containing such a release control agent; a release sheet; and a laminated body.