Release coating with low coefficient of friction

Release coating with low coefficient of friction

  • CN 102,827,503 B
  • Filed: 06/18/2012
  • Issued: 12/13/2019
  • Est. Priority Date: 06/17/2011
  • Status: Active Grant
First Claim
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1. A composition for a barrier coating, the composition comprising:

  • A release agent, andFine particulate additives in the form of three-dimensional bodies based on polymers prepared from vinyl building blocks,Wherein the length of the minor axis diameter of the body differs from the length of the major axis diameter by no more than 20%, and wherein;

    The release agent used is an addition-crosslinking silicone system comprising a vinyl-functionalized polysiloxane as base polymer, a methylhydrosiloxane as crosslinking agent, and a platinum catalyst-the proportion of the system being from 92.5% to 99.5% by weight, based on the total composition;

    Added to the release agent as a fine-particulate additive in the form of three-dimensional bodies based on polymers prepared from vinyl building blocks are spheres of PMMA with a major axis diameter of 1 to 4 μ

    m, the proportion fraction of the additive being from 0.5 to 7.5% by weight, based on the total composition.

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