The presently claimed invention relates to use of an aqueous polymer latex as a binder or co-binder in a waterborne coating composition, wherein the aqueous polymer latex is obtained by polymerizing a monomer composition M, comprising at least one tert-butyl acrylate and/or tertbutyl methacrylate monomer, by radical emulsion polymerization.

The presently claimed invention relates to use of an aqueous polymer latex as a binder or co-binder in a waterborne coating composition, wherein the aqueous polymer latex is obtained by polymerizing a monomer composition M, comprising at least one tert-butyl acrylate and/or tertbutyl methacrylate monomer, by radical emulsion polymerization.

The present invention provides a precursor film for producing a conductive film, the precursor film including: a substrate; and a plated layer precursor layer disposed on the substrate, in which the plated layer precursor layer includes a polyfunctional monomer, a monofunctional monomer, and a polymer which has a functional group interacting with a plating catalyst or a precursor of the plating catalyst and has a polymerizable functional group.

The present invention provides a precursor film for producing a conductive film, the precursor film including: a substrate; and a plated layer precursor layer disposed on the substrate, in which the plated layer precursor layer includes a polyfunctional monomer, a monofunctional monomer, and a polymer which has a functional group interacting with a plating catalyst or a precursor of the plating catalyst and has a polymerizable functional group.

A hydrogel 1 having a laminate structure of layer A 10 and layer B 20, wherein layer A 10 contains a monomer-derived component, water, a humectant, a water-insoluble polymer having tackiness and an amphiphilic polymer, the water-insoluble polymer is contained in a proportion of 3 to 20 wt % based on a total amount of layer A, and the amphiphilic polymer is a polyvinyl alcohol having a saponification degree of 50 to 75% and is contained in a proportion of 0.05 to 5 wt % based on the total amount of layer A; layer B 20 contains a monomer-derived component, water and a humectant and is substantially free of a water-insoluble polymer having tackiness and a polyvinyl alcohol; and an amount of the water based on a total amount of layer B is the amount of water based on the total amount of layer A±10 wt %.

Among the various aspects of the present disclosure is the provision of a hydrogel-based substrate comprising an aldehyde-containing component, such as N-ethanal acrylamide. The hydrogel component allows for functionalization of a hydrogel through conjugation of proteins (e.g., collagen) to the hydrogel in the absence of a post hoc crosslinking component.

Functionalized particulate support material and chromatographic media prepared therefrom are disclosed. The functionalized particulate support material is a plurality of particles, each particle having a particle surface. Chemically bonded to and extending from the surface of the particles is a combination of hydrophobic and hydrophilic functional groups. The hydrophobic functional groups enable polymerization of one or more monomers onto the particle surface while the hydrophilic functional groups provide increased wettability of the particle surface compared to an unmodified particle surface. The functionalized particulate support material may be further processed so as to form polymer chains extending from the hydrophobic functional groups. In one embodiment, the resulting polymer functionalized material is useful as a chromatographic media in chromatography columns or cartridges, such as in a liquid chromatography (HPLC) column. Chromatography columns or cartridges containing the polymer functionalized media, and methods of making and using the media, are also disclosed.

Functionalized particulate support material and chromatographic media prepared therefrom are disclosed. The functionalized particulate support material is a plurality of particles, each particle having a particle surface. Chemically bonded to and extending from the surface of the particles is a combination of hydrophobic and hydrophilic functional groups. The hydrophobic functional groups enable polymerization of one or more monomers onto the particle surface while the hydrophilic functional groups provide increased wettability of the particle surface compared to an unmodified particle surface. The functionalized particulate support material may be further processed so as to form polymer chains extending from the hydrophobic functional groups. In one embodiment, the resulting polymer functionalized material is useful as a chromatographic media in chromatography columns or cartridges, such as in a liquid chromatography (HPLC) column. Chromatography columns or cartridges containing the polymer functionalized media, and methods of making and using the media, are also disclosed.

A method for dewatering of biological sludge is disclosed. The method includes addition of a flocculant to a biological sludge, which includes an aqueous phase and a suspended solid organic material, flocculating and dewatering the sludge. The flocculant includes a polymer composition, which includes a cationic crosslinked first polymer, which is selected from crosslinked polyamines, and a cationic second polymer, which is a polymer obtained by polymerization of (meth)acrylamide and cationic monomers, the second cationic polymer being polymerized in presence of the cationic first polymer.

A method for dewatering of biological sludge is disclosed. The method includes addition of a flocculant to a biological sludge, which includes an aqueous phase and a suspended solid organic material, flocculating and dewatering the sludge. The flocculant includes a polymer composition, which includes a cationic crosslinked first polymer, which is selected from crosslinked polyamines, and a cationic second polymer, which is a polymer obtained by polymerization of (meth)acrylamide and cationic monomers, the second cationic polymer being polymerized in presence of the cationic first polymer.