Abstract: The present disclosure is directed to compositions and methods for coating, particularly protecting and optionally cleaning, metallic surfaces, and articles containing such surfaces; wherein the compositions include a zwitterionic polymer including pendant zwitterionic moieties, an inorganic silicate, and water.

Abstract: The present disclosure is directed to compositions and methods for coating, particularly protecting and optionally cleaning, metallic surfaces, and articles containing such surfaces; wherein the compositions include a zwitterionic polymer including pendant zwitterionic moieties, an inorganic silicate, and water.

Abstract: The present disclosure relates to silica nanoparticle coatings and articles, such as in particular retro-reflective devices, bearing silica nanoparticle coatings thereon. The present disclosure is also directed to a method for retarding dew formation on the surface of an article, in particular an article comprising a retro-reflective support.

Abstract: The present disclosure relates to a pressure sensitive adhesive comprising: a) a multi-arm block copolymer of the formula Qn-Y, wherein: (i) Q represents an arm of the multi-arm block copolymer and each arm independently has the formula G-R, (ii) n represents the number of arms and is a whole number of at least 3, and (iii) Y is the residue of a multifunctional coupling agent, wherein each R is a rubbery block comprising a polymerized conjugated diene, a hydrogenated derivative of a polymerized conjugated diene, or combinations thereof; and each G is a glassy block comprising a polymerized monovinyl aromatic monomer; b) a polymeric plasticizer having a weight average molecular weight Mw comprised between 10.000 and 100.

Abstract: The present disclosure relates to an amphiphilic copolymer comprising: a) repeating monomeric units comprising a pendant zwitterionic moiety; b) repeating monomeric units comprising a pendant group comprising a fluorine-containing group and at least one heteroatom; and c) optionally, secondary repeating monomeric units comprising a pendant group comprising a functional group selected from the group consisting of phosphate groups, phosphonate groups, sulfonate groups, alkoxysilane groups, carboxylate groups, and any combinations thereof; and wherein the repeating monomeric units of the amphiphilic copolymer independently comprise an ethylenically unsaturated polymerizable group selected from the group of (meth)acrylate ester containing groups. In another aspect, the present disclosure is directed to a protective coating composition comprising: a) an amphiphilic co polymer as described above, and b) a solvent comprising water.

Abstract: In one aspect of the present disclosure, there is provided an antireflective coating composition comprising (a) hydrophilic spherical silica nanoparticles; (b) hydrophilic elongated silica nanoparticles, wherein the coating composition exhibits a pH-value in the range of from 7 to 12.5 and the ratio between the hydrophilic spherical silica nanoparticles (a) and the hydrophilic nonspherical silica nanoparticles (b) is in the range of from 10:1 to 1:10. In a further aspect of the present disclosure there is provided a method for coating a substrate, comprising the steps (i) providing a substrate having at least one surface; (ii) providing the antireflective coating composition according to the present disclosure; (iii) coating the substrate on at least one surface; (iv) drying the coating, thereby obtaining a coated substrate, wherein step (iv) is carried out at a temperature in the range of from 5° C. to 300° C.

Abstract: The present invention is directed to a multilayer pressure sensitive adhesive (PSA) film, having a first pressure sensitive adhesive layer and at least an opposing layer, wherein the first pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition with a (meth)acrylic-based elastomeric material comprising a reaction product of polymerizable material comprising: (a) a first monomer which is an alkyl (meth)acrylate ester of a primary alcohol R1—OH, the alkyl (meth)acrylate ester being of Formula (I) CH2?C(R2)—(CO)—OR1?? (I) wherein R1 is an alkyl having 14 to 25 carbon atoms and the primary alcohol R1—OH has an iso index equal to at least 2 but no greater than 4; R2 is hydrogen or methyl; and (b) a second monomer having an ethylenically unsaturated group; wherein the at least one opposing layer comprises at least one filler material. The invention is also directed to a method for the manufacturing of such a multilayer PSA film and its use.

Abstract: A method of making a coatable composition includes: a) providing a initial composition comprising silica nanoparticles dispersed in an aqueous liquid medium, wherein the silica nanoparticles have a particle size distribution with an average particle size of less than or equal to 20 nanometers, and wherein the silica sol has a pH greater than 6; b) acidifying the initial composition to a pH of less than or equal to 4 using inorganic acid to provide an acidified composition; and c) dissolving at least one metal compound in the acidified composition to provide a coatable composition. Coatable compositions, wear-resistant compositions, preparable by the method are also disclosed.

Abstract: A method of making a coatable composition includes: a) providing a initial composition comprising silica nanoparticles dispersed in an aqueous liquid medium, wherein the silica nanoparticles have a particle size distribution with an average particle size of less than or equal to 100 nanometers, and wherein the silica sol has a pH greater than 6; b) acidifying the initial composition to a pH of less than or equal to 4 using inorganic acid to provide an acidified composition; and c) dissolving at least one metal compound in the acidified composition to provide a coatable composition. The at least one metal compound includes at least one of a silver compound, a zinc compound, and a copper compound. Coatable compositions, antimicrobial compositions, preparable by the method are also disclosed. Antimicrobial articles including the antimicrobial compositions are also disclosed.

Abstract: A method of making a coatable composition includes: a) providing a initial composition comprising silica nanoparticles dispersed in an aqueous liquid medium, wherein the silica nano articles have a particle size distribution with an average particle size of less than or equal to 100 nanometers, and wherein the silica sol has a pH greater than 6; b) acidifying the initial composition to a pH of less than or equal to 4 using inorganic acid to provide an acidified composition; and c) dissolving at least one metal compound in the acidified composition to provide a coatable composition. Coatable compositions and soil-resistant compositions, preparable by the method, are also disclosed. Soil-resistant articles including the soil-resistant compositions are also disclosed.

Abstract: This invention relates to coating compositions useful for the prevention and/or removal of limescale and/or soap scum. More specifically, the present invention is directed to a coating composition comprising acidified silica nanoparticles and a sulfonated polymer. The present invention is further directed to a method for the prevention and/or removal of limescale and/or soap scum from the surface of a substrate. The invention also relates to the use of such a coating composition for the prevention and/or removal of limescale and/or soap scum from the surface of a substrate.

Abstract: The present disclosure relates to silica nanoparticle coatings and articles, such as in particular retro-reflective devices, bearing silica nanoparticle coatings thereon. The present disclosure is also directed to a method for retarding dew formation on the surface of an article, in particular an article comprising a retro-reflective support.

Abstract: The present disclosure relates to a silica nanoparticle coating assembly having enhanced durability and articles bearing silica nanoparticle coating assemblies thereon. The present disclosure is also directed to a method for enhancing abrasion resistance of a coating comprising acid-sintered nanosilica particles coated onto a substrate.

Abstract: The present invention is directed to a multilayer pressure sensitive adhesive (PSA) film, having a first pressure sensitive adhesive layer and at least an opposing layer, wherein the first pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition with a (meth)acrylic-based elastomeric material comprising a reaction product of polymerizable material comprising: (a) a first monomer which is an alkyl (meth)acrylate ester of a primary alcohol R1—OH, the alkyl (meth)acrylate ester being of Formula (I) CH2?C(R2)—(CO)—OR1 (I) wherein R1 is an alkyl having 14 to 25 carbon atoms and the primary alcohol R1—OH has an iso index equal to at least 2 but no greater than 4; R2 is hydrogen or methyl; and (b) a second monomer having an ethylenically unsaturated group; wherein the at least one opposing layer comprises at least one filler material. The invention is also directed to a method for the manufacturing of such a multilayer PSA film and its use.