Transparent surface protection layer
AssigneeCenter for Abrasives and Refractories Research & Development C.A.R.R.D. GmbH
InventorsMaria Cristina Didavide, Reiner Kunz
Life of this patent
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Abstract
A transparent surface protection layer on the basis of synthetic resin may include transparent solid particles, which include at least three different grain size fractions and encompass a Mohs hardness of at least 4. The transparent particles may be incorporated into a synthetic resin matrix, wherein the grain size fractions in each case encompass a monomodal grain size distribution, and the solid particles are present as a trimodal grain size distribution including a coarse fraction, a medium fraction, and a fine fraction.
Claims14
1-12. (canceled)
A transparent surface protection layer on the basis of synthetic resin comprising transparent solid particles, which comprise at least three different grain size fractions and encompass a Mohs hardness of at least 4, which are incorporated into the synthetic resin matrix, wherein the grain size fractions in each case encompass a monomodal grain size distribution and the transparent solid particles are present together as trimodal grain size distribution comprising a coarse fraction, a medium fraction and a fine fraction, characterized in that the coarse fraction comprises an individual or two adjacent granulations comprising the grain sizes F150 to F280 according to FEPA standard, the medium fraction comprises an individual or two adjacent granulations comprising the grain sizes F320 to F1200 according to FEPA standard, and the fine fraction comprises a granulation comprising an average grain size of d50 ranging from 0.1 μm to 2 μm.
Dependencies are inferred from the claim text.