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Silicone composition for release paper or release film, release paper, and release film

A technology for peeling off paper and peeling film, which can be used in paper, papermaking, release paper, etc., and can solve the problems of improving curability and not finding mold release properties.

Active Publication Date: 2018-01-26
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Thus, in the prior art, there has not been found an appropriate method for improving the curability of the cured film of the silicone composition while improving the releasability.

Method used

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  • Silicone composition for release paper or release film, release paper, and release film
  • Silicone composition for release paper or release film, release paper, and release film
  • Silicone composition for release paper or release film, release paper, and release film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～19、 comparative example 1～8

[0404] Using (A)-(J) components shown above as a raw material, the coating composition (releasing agent) was prepared in the following procedure.

[0405] Put (A)-(C) components and (E)-(J) components in a flask according to the compounding ratio of Table 1, and stirred at 20-40 degreeC for 3 hours, and dissolved them. To the obtained solution, (D) component was added in an amount corresponding to the mass of platinum described in Table 1, and stirred and mixed at 20 to 40° C. for 10 minutes to obtain a coating composition.

[0406] Using this coating composition, a coated product was prepared and evaluated by the method described later. In addition, the measurement of viscosity was performed at 25 degreeC using the TVB-10 type viscometer (made by Toki Sangyo Co., Ltd.).

[0407]

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PUM

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Abstract

Provided are: an additive reaction-type silicone composition that is for release paper or for a release film, that is non-migratory, and that exhibits light releasability with respect to various adhesives, said silicone composition for release paper or for a release film making it possible to form a cured film that does not adversely affect residual adhesive strength or releasability; and a release paper or a release film obtained by applying the composition to a substrate and curing the result. In a silicone composition for release paper or a release film cured by additive reaction, an organopolysiloxane containing an alkenyl group having a terminal unsaturated bond is used as a base polymer, and a specific amount of an organopolysiloxane that has a lower molecular weight than the base polymer and that contains an alkenyl group having a terminal unsaturated bond is mixed with the base polymer.

Description

technical field [0001] The present invention relates to a silicone composition for a release paper or a release film and a release paper or a release film obtained by coating the composition on a substrate and curing it. The silicone composition for a release paper or a release film is suitable Silicone composition for the production of release paper and release film with excellent release properties. Compared with conventional compositions, the curability of the coating film is excellent, and the coating of release paper and release film produced by coating it The side is non-migrating and has peel properties with light peel force. Background technique [0002] The release film and release paper are coated with a curable silicone composition as a silicone release agent on the surface of a substrate such as a plastic film or paper, and a cured film is formed through a crosslinking reaction, thereby serving as a protective film for adhesive or sticky substances. Release agen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/00B32B27/00C08L83/05C08L83/07D21H19/32D21H27/00
CPCD21H19/32C09D183/04C08G77/12C08G77/20C08L2205/025C09J2483/005D21H27/001C08K5/56C08L83/00C09D7/61C09D5/20D21H27/00B32B27/283C09J183/04
Inventor 山本谦儿小野泽勇人
Owner SHIN ETSU CHEM CO LTD
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