Abstract:
Dry erase articles are described comprising a writable surface layer comprising a cured hardcoat composition comprising the reaction product of certain low surface energy compound(s). In one embodiment, the compound(s) comprise a C18-C36 hydrocarbon group and an ethylenically unsaturated group. In another embodiment, a mixture of compounds is utilized, the mixture comprising first compounds comprising a C18-C36 hydrocarbon group and an ethylenically unsaturated group and second compounds comprising a C8-C17 hydrocarbon group and an ethylenically unsaturated group, wherein the first and second compound are present at a weight ratio of 3:2 to 4:1.
Abstract:
Articles are described comprising a surface layer comprising at least one long hydrocarbon chain silane compound (C8- C36) bonded to a siliceous layer such as diamond-like glass. In an embodiment, the siliceous layer has a porosity of no greater than 10% and a thickness no greater than 1 micron. In another embodiment, the siliceous layer comprises 10- 50 atomic percent carbon and the article further comprises an organic polymeric base member or a hardcoat layer. Also described are coating compositions comprising at least one C8-C17 hydrocarbon silane compound and at least one C18-C36 hydrosilane compound.
Abstract:
A method of disinfecting a medical device comprises three steps. First, a disinfectant is contacted with a process indicator and the medical device. The disinfectant comprises at least one aldehyde. The process indicator contains a synthetic amine-containing compound disposed on a substrate. The synthetic amine-containing compound comprises at least one of primary amino groups or secondary amino groups, and is reactive with the disinfectant to form at least one adduct. The synthetic amine-containing compound and the medical device are in fluid communication through the disinfectant. A predetermined disinfectant exposure criterion exists for contacting the disinfectant with the medical device. Second, the process indicator is spectrally observed and at least one parameter is obtained therefrom that is predictive of the predetermined disinfectant exposure criterion. The third step is determining that the predetermined disinfectant exposure criterion has been achieved.
Abstract:
A composition having pH of 6 or less comprises composite particles dispersed in an aqueous continuous liquid phase. Each composite particle comprises a non-cationic polymer core surrounded by a silica shell consisting essentially of silica particles having a mean particle diameter of 3.2 nanometers or less. The weight ratio of the total amount of the silica in the composition to the total polymer is in a range of 0.2 to 2.2. The composition is useful for making various articles. A method for making the composition is also disclosed.
Abstract:
The present disclosure relates to a coating composition for reducing oily contamination from a chromium surface, wherein the composition comprises: a) a hydrophilic (co)polymer; b) optionally, a multivalent metal salt; and c) a solvent comprising water. In another aspect, the present disclosure is directed to a method of reducing oily contamination from a chromium surface, which comprises the steps of: a) providing a chromium surface; b) applying a coating composition as described above to the chromium surface, thereby forming a layer of the coating composition adjacent to the chromium surface; and c) drying and/or curing the layer of the coating composition, thereby forming a coating layer adjacent to the chromium surface. According to still another aspect, the present disclosure is directed to a coated article comprising a chromium surface and a coating layer adjacent to the chromium surface, wherein the coating layer comprises a layer of the coating composition as described above which has been dried and/or cured onto the chromium surface.
Abstract:
Method of making an article are described comprising providing a substrate and forming a surface treated porous layer on a surface of the substrate. The porous layer comprises sintered inorganic oxide particles. A surface of the porous layer comprises a hydrophobic layer. The method further comprises impregnating a lubricant into pores of the surface treated porous layer. Also described are articles, comprising (a) a substrate; (b) a surface treated porous layer disposed on a surface of the substrate, wherein the surface treated porous layer comprises a plurality of sintered inorganic oxide particles arranged to form a porous three-dimensional network, and a hydrophobic layer disposed on a surface of the porous three-dimensional network, and (c) a lubricant impregnated in pores of the surface treated porous layer.
Abstract:
The present invention provides a slip resistant article comprising a substrate and a slip resistant coating applied on the surface of the substrate. The substrate is a ceramic tile substrate. The slip resistant coating is further prepared from a slip resistant solution, and the slip resistant solution comprises the reaction product of the following reaction components: 1-83.5 wt.% of a first silane, based on the total weight of the slip resistant solution as 100 wt.%, the general formula of the first silane being R 1 a Si (OR) 4-a-b R 2 b , wherein the value of a is 0 to 3; when the value of a is 0, the value of b is 0; when the value of a is 1, the value of b is 0 to 2; when the value of a is 2, the value of b is 0 to 1; when a value of a is 3, the value of b is 0; R represents alkyl group having 1 to 4 carbon atoms; R 1 represents hydrocarbyl group with epoxy functional group; and R 2 represents alkyl group having 1 to 2 carbon atoms; and 16.5-99 wt.% of a first solvent, based on the total weight of the slip resistant solution as 100 wt.%, the first solvent being water and/or alcohol.
Abstract translation:本发明提供一种防滑制品,其包括施加在基材表面上的基材和防滑涂层。 衬底是瓷砖衬底。 防滑涂层由防滑溶液进一步制备,防滑溶液包含以下反应组分的反应产物:1-83.5重量%的第一硅烷,基于防滑溶液的总重量为 100重量%,第一硅烷的通式为R a a Si(OR)4-a-b R b b,其中a的值为0至3; 当a的值为0时,b的值为0; 当a的值为1时,b的值为0〜2; 当a的值为2时,b的值为0〜1; 当a的值为3时,b的值为0; R表示具有1至4个碳原子的烷基; R1表示具有环氧官能团的烃基; 并且R 2表示具有1至2个碳原子的烷基; 和16.5-99重量%的第一溶剂,基于防滑溶液的总重量为100重量%,第一溶剂为水和/或醇。
Abstract:
A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.
Abstract:
Static dissipative coatings that include a multilayer antistatic coating on a substrate, the multilayer antistatic coating including a buried clay/nanosilica layer and an overcoat layer, wherein the overcoat layer comprises a fluoropolymer, a silicone, or a hydrocarbon polymer, and methods for providing a multilayer antistatic coating on the surface of a substrate.
Abstract:
The present invention provides a hydrophilic film that causes a liquid to diffuse rapidly in a single direction. The hydrophilic film comprises a substrate having a texture of parallel sunken and raised patterns, and a hydrophilic coat comprising a coat of silicon dioxide particles. The present invention also provides a method for preparing the hydrophilic film. The method comprises: preparing an aqueous dispersion of silicon dioxide particles, wherein the average size of the silicon dioxide particles is 1 to 60 nm, and the concentration of the silicon dioxide particles is 0.05% to 15% by weight; coating the aqueous dispersion of silicon dioxide particles on a substrate, wherein the substrate has a texture of parallel sunken and raised patterns; and drying the substrate coated with the aqueous dispersion of silicon dioxide particles.