The present invention discloses methods for producing a covalently attached antioxidant coating using a multi-step coating process consisting of (1) exposing the substrate surface to plasma polymerization to produce a surface containing functional groups; (2) contacting the surface containing functional groups with crosslinking agents to produce a reactive surface; (3) contacting the reactive surface with a solution of one or more antioxidant compounds or a solution of one or more antioxidant-containing polymers. Alternatively, the third step is replaced by (3) contacting the reactive surface with a solution of one or more polymers to produce a polymer coated surface and (4) covalently attaching one or more antioxidant compounds to the polymer coated surface.

The present invention provides polymer blends that can be used in a multilayer structure and to multilayer structures comprising one or more layers formed from such blends. In one aspect, a polymer blend comprises an ionomer of a copolymer comprising ethylene and at least one of acrylic acid and methacrylic acid having a melt index (I.sub.2) of 1 to 60 g/10 minutes, wherein the total amount of ionomer comprises 50 to 99 weight percent of the blend based on the total weight of the blend, and a polyolefin having a density of 0.870 g/cm.sup.3 or more and having a melt index (I.sub.2) of 20 g/10 minutes or less, wherein the polyolefin comprises 1 to 50 weight percent of the blend based on the total weight of the blend, wherein the polymer blend meets the following equation: 3.5<2.76-60*I.sub.2(PO+308*RVR+0.023*A<4.5 wherein I.sub.2(PO) is the melt index (I.sub.2) of the polyolefin, RVR is the relative viscosity ratio of the polyolefin to the ionomer (I.sub.2(PO)/I.sub.2(ionomer)), and A is the weight percent of ionomer in the polymer blend based on the total weight of the blend.

There is provided a method of forming a metallized polymeric film comprising (1) coating a polymer film with an aqueous primer solution comprising a solution of at least one polyanion and at least one polyethyleneimine, wherein the polyanion is a polymer comprising at least partially neutralized acid groups having a weight average molecular weight of preferably at least 5000 g/mol prior to neutralization; and wherein said polyethyleneimine has a weight average molecular weight of preferably at least 25000 g/mol; and (2) depositing a metal or a metal oxide on the at least one coated side of the polymer film.

This disclosure describes polymerization processes and processes for quenching polymerization reactions using reactive particulates, such as high molecular weight functionalized olefin copolymers, as quenching agents, typically in solution or bulk polymerization processes.

The present disclosure relates to a method for preparing a crosslinker compound in which a crosslinker compound capable of using for the production of a super absorbent polymer can be obtained in a higher yield by a simple manner. The crosslinker compound obtained by the above method can be used as a thermally decomposable crosslinker in the process of producing a super absorbent polymer.

Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.

A polyacetal resin composition. An aliphatic polycarboxylic acid having four or more carbons and two or more carboxyl groups and a hindered-phenol antioxidant are incorporated into a polyacetal copolymer obtained by copolymerizing trioxane as a major monomer with a cyclic ether and/or cyclic formal each having at least one carbon-carbon bond as a comonomer using a specific heteropoly acid as a polymerization catalyst, adding, to the resultant reaction product, a compound which is any of the carbonates, hydrogen carbonates, and carboxylates of alkali metal elements or alkaline-earth metal elements, the hydrates of these, and the hydroxides of alkali metal elements or alkaline-earth metal elements, and melt-kneading the mixture to deactivate the polymerization catalyst.

A resin composition including an epoxy resin (A), a curing agent (B), and vinyl polymer particles (C), in which the contained amount of epoxy resin (a1) having a molecular weight of 100-480 is 30-90 parts by mass per 100 parts by mass of the epoxy resin (A), the contained amount of epoxy resin (a2) having a molecular weight of 2,000-40,000 is 10-70 parts by mass per 100 parts by mass of the epoxy resin (A), the contained amount of the vinyl polymer particles (C) is 2-30 parts by mass per 100 parts by mass of the epoxy resin (A), and the instantaneous maximum thickening value of the vinyl polymer particles obtained by the following method is 0.3-5.0 Pa.Math.s/ C.

A laminate film includes a substrate layer; and a metal oxide layer which is provided on one surface or both surfaces of the substrate layer and contains a metal oxide. Further, the oxygen permeability measured under defined conditions is 20 ml/m.sup.2.Math.day.Math.MPa or less and the water vapor permeability measured under conditions of a temperature of 40 C. and a humidity of 90% RH is 2.5 g/m.sup.2.Math.day or greater. In addition, when the K beam intensity of a metal constituting the metal oxide which is obtained by performing fluorescence X-ray analysis on the metal oxide layer is set to A and the K beam intensity of the metal which is obtained by performing fluorescence X-ray analysis on a metal layer formed of the metal constituting the metal oxide is set to B, A/B is equal to or greater than 0.20 and equal to or less than 0.97.

A coated viscoelastic polyurethane foam includes a viscoelastic polyurethane foam having the coating thereon, the viscoelastic polyurethane foam having a resiliency of less than or equal to 20% as measured according to ASTM D3574, and a coating material on and embedded within the viscoelastic polyurethane foam, the coating material including an aqueous polymer emulsion and an encapsulated phase change material.