02-01-2014 дата публикации
Номер: US20140005313A1
This invention relates to compositions comprising blends of acrylic add polymers and/or ethylene acrylic add copolymers and colloidal silica modified with certain aromatic aminosilanes, aromatic aminoalkylsilanes, alkenyl aminoalkylsilanes, secondary or tertiary aliphatic aminosilanes. These compositions can provide improved properties such loss modulus, storage modulus, creep resistance, and wear resistance, without sacrificing optical clarity. 2. The nanocomposite of claim 1 , wherein the acrylic polymer further comprises a monomer selected from the group consisting of ethylene claim 1 , arylalkyl acrylates claim 1 , arylalkyl methacrylates claim 1 , acrylonitrile claim 1 , alkyl acrylates claim 1 , alkyl methacrylates and carbon monoxide.3. The composite of claim 2 , wherein the acrylic polymer is partially neutralized with sodium cations claim 2 , potassium cations claim 2 , zinc cations claim 2 , lithium cations claim 2 , magnesium cations claim 2 , or a combination thereof.4. The nanocomposite of claim 1 , wherein the wt/wt ratio of aminosilane-modified colloidal silica to acrylic polymer is about 0.1% to about 15%.5. The nanocomposite of claim 2 , wherein the monomer is selected from the group consisting of n-butyl acrylate claim 2 , isopropyl acrylate claim 2 , n-propyl acrylate claim 2 , ethyl acrylate claim 2 , methyl acrylate claim 2 , 2-ethylhexyl acrylate claim 2 , and methyl methacrylate.6. The nanocomposite of claim 1 , further comprising fatty acids selected from the group consisting of oleic claim 1 , stearic claim 1 , linoleic and linolenic acids.8. An article comprising a nanocomposite of .9. The article of in the form of a film claim 8 , a sheet claim 8 , particles claim 8 , or a molded article.10. The molded article of in the form of a cosmetic bottle cap.11. The film of in the form of a glass interlayer. This application claims priority to Provisional Application No. 61/471841 filed Apr. 5, 2011 which is herein incorporated by reference.This ...
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