The present invention relates to a resin composition containing a polyvinyl chloride resin and an acrylic resin and a board for interior materials manufactured using the same. More specifically, the present invention relates to a resin composition having excellent heat resistance due to a high glass transition temperature, having high flexibility even with a low plasticizer content, and having excellent processability due to such properties, as compared with the case wherein a polyvinyl chloride resin is used alone, and to a board for interior materials manufactured using the resin composition. According to the present invention, the resin composition may be applied to both a calendering method and an extrusion method due to excellent processability thereof.

An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.

The present invention relates to a four-function steel surface treatment liquid and a preparation method thereof, the components of raw materials of the four-function steel surface treatment liquid per liter include: phytic acid of 15 g-18 g, hydroxyethylidene-1, 1-diphosphonic acid of 50 g-65 g, phosphoric acid solution of 280 g-320 g, manganous dihydrogen phosphate of 280 g-360 g, thiourea of 5 g-8 g, surfactant of 3 g-6 g, polyethylene glycol of 1 g-2 g, sodium molybdate of 5 g-8 g, and the remaining of water. The four-function steel surface treatment liquid provided by the present invention has the advantages of a good anti-corrosion property and a safe cleaning process, is simple, high efficiency, environmental protection, no hydrogen embrittlement on a metal substrate, no intergranular corrosion, no harm to human skin, no burning, no explosion, and non-toxic, and can be used repeatedly at a normal temperature.

The present invention relates to a resin composition containing a polyvinyl chloride resin and an acrylic resin and a board for interior materials manufactured using the same. More specifically, the present invention relates to a resin composition having excellent heat resistance due to a high glass transition temperature, having high flexibility even with a low plasticizer content, and having excellent processability due to such properties, as compared with the case wherein a polyvinyl chloride resin is used alone, and to a board for interior materials manufactured using the resin composition. According to the present invention, the resin composition may be applied to both a calendering method and an extrusion method due to excellent processability thereof.

A two-component polyurea compositions including a polyisocyanate component and a hardener component. The hardener component includes at least a derivative of aspartic acid and at least one salt hydrate with a decomposition temperature of between 30° C. and 150° C. This composition allows to be applied to a large area and/or thick layers or high volume casts and shows fast curing triggered by heat but long pot life at application temperature.

The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction of a dicarboxylic acid or an ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a water-insoluble or hardly water-soluble phosphate having on the surfaces a coating layer of titanic acid in an amount, of 0.1 to 100 parts by weight in terms of TiO.sub.2 per 100 parts by weight of the phosphate.

The present invention relates to a thermoplastic composition, in particular for use in extrusion and compounding, having a continuous phase, which comprises at least one first polymer, which is selected from a group comprising a polyester, a polyesteramide, a polyesteretheramide, an aliphatic or partially aromatic polyester urethane or mixtures thereof, in particular such compounds or mixtures having hydrophobic surface properties, and at least one dispersed phase, which, as the second polymer, comprises at least one biogenic crosslinking agent having a water content of 0.1 to 30 wt. %, in particular 5 to 25 wt. %, with reference to the total weight thereof, and wherein the first polymer of the continuous phase is not miscible with the second polymer of the dispersed phase, and has at least one inorganic filler, and at least one plasticizer. The composition according to the invention is characterized in that it has the plasticizer diglycerol or mixtures with diglycerol, and the filler is in a proportion of 0.1 to 40 wt. % with reference to the total weight of the composition.

The present invention relates to a non-oriented electrical steel sheet adhesive coating composition including the constituent elements below, a non-oriented electrical steel sheet product, and a manufacturing method thereof. The non-oriented electrical steel sheet adhesive coating composition includes: a first component including an organic/inorganic composite; and a second component including a composite metal phosphate, wherein the organic/inorganic composite is formed by having inorganic nanoparticles chemically substituted with some functional groups in an organic resin, the organic resin is one, or two or more, selected from an epoxy-based resin, an ester-based resin, an acrylic resin, a styrene-based resin, a urethane-based resin, and an ethylene-based resin, and the inorganic nanoparticles are one, or two or more, selected from SiO.sub.2, Al.sub.2O.sub.3, TiO.sub.2, MgO, ZnO, and ZrO.sub.2.

The present invention provides an adhesive film hardly suffering from fisheyes and deposition of dirt and dusts thereonto and having excellent mechanical strength and heat resistance as well as good adhesion properties, which can be suitably used as various surface protective films, etc. The present invention relates to an adhesive film comprising a polyester film and an adhesive layer formed on at least one surface of the polyester film, in which the adhesive layer comprises a resin having a glass transition point of not higher than 0 C., and an antistatic agent, and a thickness of the adhesive layer is not more than 10 m.

An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.