Nippon Synthetic Chemical Industry Co.

Osaka, Japan

Nippon Synthetic Chemical Industry Co.

Osaka, Japan
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Patent
Nippon Synthetic Chemical Industry Co. | Date: 2017-07-26

Disclosed is a dispersing agent for agrochemicals, said dispersing agent which comprises a modified polyvinyl alcohol-based resin containing a structural unit having a nonionic hydrophilicity group in side chain, and having a saponification degree of 95 mol% or more. The dispersing agent for agrochemicals can provide a dispersion in which a hardly water-soluble agrochemical active ingredient employed for a dispersoid is dispersed in a stable state even in the case where the dispersoid has a relatively large particle size.


Provided herein is a polyvinyl alcohol fine particle suitable for a pharmaceutical binder for obtaining a pharmaceutical tablet of properties including good sustained release, high hardness, and excellent friability. The polyvinyl alcohol fine particle of the present invention contains 25 mol% or more of a gauche structure in polyvinyl alcohol molecules within a 0.8-nm region inside the particle from the particle surface.


Patent
Nippon Synthetic Chemical Industry Co. | Date: 2017-02-09

Disclosed is a dispersing agent for agrochemicals, said dispersing agent which comprises a modified polyvinyl alcohol-based resin containing a structural unit having a nonionic hydrophilicity group in side chain, and having a saponification degree of 95 mol % or more. The dispersing agent for agrochemicals can provide a dispersion in which a hardly water-soluble agrochemical active ingredient employed for a dispersoid is dispersed in a stable state even in the case where the dispersoid has a relatively large particle size.


The present invention relates to a laminated film for forming a concrete surface coating layer, which is excellently protective in protecting concrete surfaces from damage, and has excellent surface smoothness for improving design characteristics by smoothing the concrete surface. The laminated film for forming a concrete surface coating layer (10) of the present invention results from laminating a layer comprising a curable resin composition (1) and a support film (2).


A laminate-shaping support material includes one of: a resin composition containing a polyvinyl alcohol resin having a primary hydroxyl group at its side chain, and having a heat of fusion of 10 to 30 J/g at its melting point (Embodiment (X)); and a resin composition containing a polyvinyl alcohol resin, and a block copolymer including a polymer block of an aromatic vinyl compound, at least one of a polymer block of a conjugated diene compound and a block of a hydrogenated conjugated diene compound, and a functional group reactive with a hydroxyl group (Embodiment (Y)). Therefore, the laminate shaping support material according to Embodiment (X), for example, is excellent in shape stability and adhesiveness to a model material. The laminate shaping support material according to Embodiment (Y) is excellent in peelability and forming stability.


Patent
Kurita Water Industries Ltd. and Nippon Synthetic Chemical Industry Co. | Date: 2017-01-18

Provided is a method for producing paper and a pitch removal agent that can remove pitch efficiently. A pitch removal agent having an average polymerization degree of 300 to 2500, a saponification index of 70 to 88 mol % and satisfying, when the absorbance at a wavelength of 490 nm is designated as y (Abs) and the saponification index as x (mol %), the Numerical Formula (A) below is added to a pulp slurry during production of paper using waste paper in the step of deinking the waste paper by floatation and/or a step earlier:


Patent
Nippon Synthetic Chemical Industry Co. | Date: 2017-02-08

The embodiments of the present invention provide a urethane (meth) acrylate compound (A) prepared by a reaction of a hydroxyl group-containing (meth)acrylate compound (x) having a structural moiety derived from -caprolactone with a polyvalent isocyanate compound (y), wherein the polyvalent isocyanate compound (y) has an average isocyanate group number of not less than 3.2. A cured coating film formed from an active energy radiation-curable resin composition containing the urethane (meth)acrylate compound has practically acceptable resilience, and is excellent in blocking resistance and surface hardness and further excellent in transparency and metal base adhesiveness.


The purpose of the invention is to provide: a package for EVOH resin pellets which is capable of providing the EVOH resin pellets almost free from powder even in a case where the package contains the powder generated therein during transportation or the like after shipment; and EVOH resin pellets contaminated with very small amount of the powder in a case where a user uses the EVOH resin pellets as a molding material. A package, where pellets each having a substantially circular or oval cross-section are packed in a packaging container whose inner surface has a surface resistivity of 1.010^(14) or more, is capable of providing pellets to which 0.8 wt% or less of powder adhered relative to the weight of the pellets.


Patent
Nippon Synthetic Chemical Industry Co. | Date: 2017-05-03

An active-energy-ray-curable pressure-sensitive adhesive composition comprising a urethane (meth)acrylate-based compound (A) obtained by reacting a polybutadiene-based polyol (a1), a polyvalent isocyanate-based compound (a2), and a hydroxyl group-containing (meth)acrylate-based compound (a3) and an ethylenically unsaturated monomer (B), wherein storage modulus at 23C of a pressure-sensitive adhesive layer obtained by curing the composition by irradiation with an active energy ray is 1.010^(6) or more and glass transition temperature of the pressure-sensitive adhesive layer is -30C or lower.


The laminate of the present invention a laminate comprising a layer comprising a saponified ethylene/vinyl ester copolymer and a layer which comprises a thermoplastic resin that is not an EVOH resin and which has been laminated to at least one surface of the layer comprising a saponified ethylene/vinyl ester copolymer via a layer comprising an adhesive resin, wherein shear viscosity ratio of the saponified ethylene/vinyl ester copolymer and the adhesive resin (saponified ethylene/vinyl ester copolymer to adhesive resin) is 0.70-1.50 at a shear rate of 0.1 [1/s] and 0.90-1.10 at a shear rate of 1.0 [1/s].

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