The present invention relates to an iminodiacetic acid chelating resin, wherein the water amount in the resin is from 50 to 75% and the volume ratio of Na form/H form is from 1.4 to 1.8. Furthermore, the present invention relates to a method for producing an iminodiacetic acid chelating resin, wherein an alcohol is used as a solvent for the amination reaction of a chloromethylated styrene crosslinked copolymer with iminodiacetonitrile or sodium iodide and/or potassium iodide is used as a catalyst for the amination reaction.

A nozzle includes a front end part, wherein the nozzle is composed of a non-fluorine-based resin, and wherein fluorine atoms are incorporated into a molecular chain of the non-fluorine-based resin constituting a surface of the nozzle. A nozzle includes a front end part, wherein a surface of the front end part is provided with a first surface positioned on the center side of the nozzle and a second surface continuing to an outer peripheral side of the first surface, and wherein the first surface and the second surface are composed of surfaces differing in surface free energy.

A silicone rubber molded body (10) has an article contact surface (11). The article contact surface (11) has a coefficient of rolling resistance lowered by a fluorination treatment on the article contact surface (11).

The present disclosure relates to a process for the preparation of CPVC which includes reacting PVC with chlorine at a pre-determined temperature in the presence of at least one irradiation source having wavelength ranging from 254 and 530 nm while maintaining the radiant flux from 1.5 to 2 W/kg of PVC, irradiance at 0.13 W/cm.sup.2 and the number of photons emitted per second from 310.sup.18 to 510.sup.18, under agitation, for a time period ranging from 3 to 4 hours to obtain CPVC. The CPVC prepared from the afore-stated process has a whiteness index ranging from 89 to 96, a yellowness index ranging from 1.23 to 1.73 and stability ranging from 648 to 684 seconds. The rate of the chlorination reaction after employing the afore-stated process parameters ranges from 1.6 to 4.36 mole/hour/kg.

Methods are disclosed for modifying surfaces of a structure used in manufacturing semiconductor devices wherein the structures are formed from organic polymers. In addition to the surface of the structure, which is over a core, a portion of the structure slightly below the surface is also modified via fluorination of the organic polymer. The fluorination is achieved by exposing the structure to a mixture of gases including fluorine in a range from about 0.01% to about 10% and inert gas comprising a remainder of the mixture of gases. Fluorination occurs from the surface into the core to a depth of no more than about 1 micron and such that a portion of the core below more than 1 micron from the surface is not fluorinated.

This invention relates to an elastomeric article with improved lubricity and donnablity and reduced stickiness/tackiness. According to the methods of the invention, the internal surface of the elastomeric article is coated with a polyisoprene coating. The coating of the invention is formed from synthetic polyisoprene rubber that may or may not contain minor amounts of other components. The coating is preferably directly bonded to the underlying elastomeric article.

The present invention relates to a surface modification method for a polyether-ether-ketone material. The method combines physical and chemical methods, and comprises the steps of performing plasma immersion ion implantation on the surface of the polyether-ether-ketone material with argon as an ion source, and then, soaking the polyether-ether-ketone material treated by plasma immersion ion implantation in a hydrogen peroxide aqueous solution, hydrofluoric acid aqueous solution, or ammonia water to make the surface of the modified polyether-ether-ketone material have nanoparticles, shallow nanoporous structures, and/or ravined nanostructures.

An elastomeric article is formed from a blend of nitrile rubber and polychloroprene rubber. The elastomeric article can be a glove, such as a medical exam glove. The elastomeric article is softer than a conventional nitrile elastomeric article. The elastomeric article is formed from a blended rubber latex emulsion of nitrile and polychloroprene. The blended rubber latex emulsion may be free of sulfur and vulcanization accelerators.

The present invention provides a support film for solution film forming, said support film combining polymer solution's wettability during a solution film forming step, early separation resistance during a drying step and wetting step, and easy release properties when intentionally separating a polymer film. Provided is a support film for solution film forming, said support film being formed by introducing fluorine atoms to at least one surface of abase film that is formed from one or more types of polymers selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene napthalate, polyphenylene sulphide, polysulfones, polyether ketone, polyether ether ketone, polyimides, polyetherimide, polyamides, polyamide-imides, polybenzimidazoles, polycarbonates, polyarylates, and polyvinyl chloride. Therein, the ratio, measured by X-ray photoelectron spectroscopy, of the number of fluorine atoms/the number of carbon atoms in the surface to which the fluorine atoms are introduced, i.e. the modified surface, is 0.02-0.8, inclusive.

The present invention provides a substrate film that has a catalyst coating liquid having good coating properties when producing a membrane electrode assembly, has a catalyst layer and support film having good release properties after the catalyst layer is transferred to an electrolyte membrane using a catalyst transfer sheet, and does not contaminate the catalyst layer. Provided is a substrate film for a catalyst transfer sheet, said substrate film being formed by introducing fluorine atoms to at least one surface of a base film formed from one or more types of polymers selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene napthalate, polyphenylene sulfide, polysulfones, polyether ketone, polyether ether ketone, polyimides, polyetherimide, polyamides, polyamide-imides, polybenzimidazoles, polycarbonates, polyarylates, and polyvinyl chloride, wherein the ratio, measured by X-ray photoelectron spectroscopy, of the number of fluorine atoms/the number of carbon atoms in the surface to which the fluorine atoms are introduced, i.e. the modified surface, is 0.02-1.9, inclusive.