A coating composition is disclosed which comprises an aqueous polymeric matrix, a hydrophilic polymer, a colloidal metal oxide and a crosslinker. The coating composition when applied on medical devices is hydrophilic, shows improved lubricity, abrasion resistance and substrate adhesion on metallic or plastic substrates. The coating also shows improved water sheeting thus providing the coated substrates with anti-fog properties. The coating absorbs aqueous dye or stain solutions making the substrate suitable for printing.

Coating composition for multiple hydrophilic applications

A thermal recording material comprising a support and, sequentially superimposed thereon, an undercoating layer, which contains a pigment and a binder as main components, and a thermal recording layer, which contains an achromatic or hypochromic basic colorless dye and a developer capable of reacting with the basic colorless dye to thereby realize color formation as main components, wherein the undercoating layer comprises a carboxymethylcellulose exhibiting an etherification degree of 0.55 to 0.75. Causing the undercoating layer to further contain hydroxymethylcellulose is preferred from the viewpoint of high effectiveness.

Thermal recording material

A medical probe assembly, system, and methods for the use thereof to treat tissue are described. The system optionally comprises an energy source, two internally-cooled probe assemblies, and one or more cooling devices to provide cooling to at least one of the probe assemblies. The probe assemblies may be configured in a bipolar mode, whereby current flows preferentially between the probe assemblies. The probe assemblies and system described herein are particularly useful to deliver radio frequency energy to a patient's body. RF energy delivery may be used for various applications, including the treatment of pain, tumor ablation and cardiac ablation.

Electrosurgical tissue treatment method

An object of the present invention is to provide a pressure-sensitive adhesive composition which is excellent in antistatic property of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.1 to 100% by weight of a (meth)acrylic acid alkylene oxide. In addition, there is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0.5 to 30 % by weight of a nitrogen-containing monomer and having a glass transition temperature Tg of no higher than 0°C. Furthermore, there is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.01 to 20% by weight of a reactive surfactant.

Pressure-sensitive adhesive composition, pressure-sensitive adhesive sheets and surface protecting film

Polymer foam articles having a substantially smooth surface prepared by melt-mixing a polymer composition and a plurality of microspheres, at least one of which is an expandable polymeric microsphere, under process conditions, including temperature and shear rate, selected to form an expandable extrudable composition; and extruding the composition through a die.

Articles that include a polymer foam and method for preparing same

The present invention provides an acrylic polymer containing no surfactant, having little limitation in the polymer composition and being superior in heat resistance, processing operation performance and fluidity, and also provides use of the polymer and a production process. An acrylic polymer of present invention is obtained by the bulk polymerization, contains an acrylic acid-based monomer unit as a main component in its structure and has a Mn of 1,000 to 1,000,000, a glass transition temperature of -80° C. or higher and a Mw/Mn ratio of 5 or less, and is appropriate for acrylic rubber, a pressure-sensitive adhesive, an alkali-soluble adhesive, an alkali-soluble film, an alkali-soluble injection molding or water ink. This polymer is produced by, in the presence of an inactive gas, carrying out the bulk polymerization of a starting material which contains a monomer component having an acrylic acid-based monomer as a main component and contains a sulfur compound of 0.001 to 20 parts by weight based on 100 parts by weight of the monomer component, and contains a polymerization initiator in the weight of one-third or less based on the sulfur compound.

Acrylic polymer, its use and process for producing it

The present invention yields a coating film excellent in adhesion, water resistance, solvent resistance and durability. A compound having a carboxyl group and a long-chain alkylthio group or a salt thereof is used as an emulsifier and emulsion polymerization is carried out using a polymerizable monomer or monomers having, within their molecule, a group reactive with a carboxyl group as raw materials for emulsion polymerization, whereby the resin produced by emulsion polymerization and the emulsifier react with each other efficiently on the occasion of film formation and form a crosslinked structure. When a compound having a polymerizable unsaturated group in addition to the carboxyl group and long-chain alkylthio group or a salt thereof is used as the emulsifier, not only the above-mentioned crosslinked structure is formed but also the polymerizable unsaturated group in the emulsifier will react with the unsaturated group in the polymerizable monomer or monomers in the manner of grafting. As a result, the compatibility between the emulsifier and the emulsion-polymerized resin is improved.

Aqeous crosslinkable resin dispersions, method of their production and use thereof

PURPOSE: To provide the above compsn. excellent in absorptivity, storage stability and water resistance which gives an image excellent in light resistance and free of bleeding, by blending a specific hydroxypropylated polyethyleneimine as an essential component with a dye and water as other essential components. CONSTITUTION: Polyethyleneimine having a number-average MW of 300W150,000 is reacted with polypropylene oxide either as such or diluted with a solvent, if necessary, in the presence of a catalyst such as an acid or an alkali at 0W150°C to prepare hydroxypropylated polyethyleneimine (A) having a number- average MW of 500W300,000 and being in the form of polyethyleneimine wherein 50W90% of primary and secondary amine hydrogen atoms are substituted with hydroxypropyl groups. 0.1W100wt.% (based on the component B) of the component A and a direct, acid, mordant, metal complex, vat, disperse or the like dye (B) as essential components are dissolved together with additives (C) such as a lowly volatile org. solvent, a compatibilizing agent, a surfactant, a mildew- proofing agent, an antioxidizing agent and an ultraviolet absorber, if necessary, in water. COPYRIGHT: (C)1989,JPO&Japio

Water-base ink composition

PURPOSE:To provide the title polymer which is free from a surfactant, can be of any desired composition, and is excellent in heat resistance, processability and flow, its use and the production process therefor. CONSTITUTION:The polymer is obtained by bulk polymerization, consists mainly of recurring units derived from an acrylic acid, has a structure having 0.005-1.4 mmol/g of crosslinking functional groups, has a number-average molecular weight Mn in the range 1000000>= Mn >= 10000, a glass transition temperature of 0 deg.C or below, and an Mw/Mn ratio <= 5, and is desirable as an acrylic rubber or a pressure-sensitive adhesive. This polymer can be made by bulk-polymerizing the starting material comprising a monomer component consisting mainly of an acrylic acid monomer and containing 0.05-10wt.% crosslinking monomer having a crosslinking functional group, 0.001-1.0pt. wt., per 100 pts.wt. this monomer component, mercaptan and substantially free from a polymerization initiator.

High-molecular-weight acrylic polymer, its use and its production

A compound having a carboxy group and a long-chain alkylthio group and/or a salt thereof is used as an emulsifier and, on the other hand, emulsion polymerization is carried out using a polymerizable monomer or monomers having, within their molecule, a group reactive with a carboxyl group as raw materials for emulsion polymerization, whereby the resin produced by emulsion polymerization and the emulsifier react with each other efficiently on the occasion of film formation and form a crosslinked structure. When a compound having a polymerizable unsaturated group in addition to the carboxyl group and long-chain alkylthio group and/or a salt thereof is used as the emulsifier, not only the above-mentioned crosslinked structure is formed but also the polymerizable unsaturated group in the emulsifier will react with the unsaturated group in the polymerizable monomer or monomers in the manner of grafting. As a result, the compatibility between the emulsifier and the emulsion-polymerized resin is improved.

Heat-sensitive recording paper having an overcoat layer formed from an aqueous crosslinkable resin dispersion

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