3m Innovative Properties Company

Alan L Levin

Caroline M Ylitalo

Mahfuza B Ali

Yongshang Lu

Naiyong Jing

Yu Yang

Suresh Iyer

Kui Chen-Ho

Steven H Kong

Zhigang Yu

John L Battiste

Hyacinth L Lechuga

Dang Xie

Ingrid N Haugan

Suresh S Iyer

An anti-fog coating composition is described comprising an aqueous polymeric dispersion; a crosslinker, and a surfactant. The dried and cured coating composition does not exhibit fogging within 8 seconds after being soaked in 25&#xb0; C. water for 1 hour. In favored embodiments, the dried and cured coating composition does not exhibit fogging within 60 seconds after being soaked in 50&#xb0; C. water for 24 hours. Also described are articles comprising the dried and cured coating composition disposed on a substrate as well as a method a providing an anti-fog coating on a substrate.

Anti-fog coating comprising aqueous polymeric dispersion, crosslinker and surfactant

Described herein is composite article comprising a substrate; and on at least one face of the substrate a multilayered coating disposed thereon. The multilayered coating comprises (i) an abrasion-resistant layer adjacent to the substrate, wherein the abrasion-resistant layer comprises inorganic oxide nanoparticles and a polymer binder; and (ii) an antireflection layer adjacent to the abrasion-resistant layer opposite the substrate, wherein the antireflection layer comprises a fluorosilane polymer, wherein the fluorosilane polymer comprises: at least one monomeric unit A represented by the formula (I) wherein Rrepresents H or methyl, Lrepresents a covalent bond or a divalent aliphatic group having from 1 to 10 carbon atoms, each Yindependently represents a hydrocarbyl group having from 1 to 6 carbon atoms, each Yindependently represents a hydrolyzable group, g is 0, 1, or 2; and at least one divalent monomeric unit B represented by the formula (I) wherein R, R, and Rrepresent H, methyl, trifluoromethyl, or F, wherein at least one of R, R, and Ris F, Rrepresents a covalent bond or a divalent group selected from the group consisting of &#x2014;(CFO)&#x2014;, &#x2014;(CFCFO)&#x2014;, &#x2014;(CFCFCFO)&#x2014;, &#x2014;(CFCFCFCFO)&#x2014;, &#x2014;(CFCF(CF)O)&#x2014;, and combinations thereof, wherein a, b, c, d, and e represent integers in the range of from 0 to 130, and wherein 1&#x2264;a+b+c+d+e&#x2264;130, and Ris a perfluoroalkyl group. 

Multilayer composite article

Growing community of inventors

Shrewsbury, MA, United States of America

Alan L Levin