Abstract:
A polyarylene ether ketone resin has a repeating unit (1-1) represented by general formula (1-1) below and a repeating unit (2-1) represented by general formula (2-1) below. In the formulae, R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Ar1 and Ar2 are each a divalent organic group (3-1) represented by general formula (3-1) below, and n is 0 or 1.
Abstract:
The present invention provides an aqueous urethane resin composition containing (A) a urethane resin, (B) an organic solvent having a boiling point of 150 to 350°C, and (C) an aqueous medium, the aqueous urethane resin composition being characterized in that the organic solvent (B) has a Hansen solubility parameter in which a dispersion member (δd) is 15.5 MPa 0.5 or more and less than 20 MPa 0.5 , a polar member (δp) is 4.5 MPa 0.5 or more and less than 12 MPa 0.5 , and a hydrogen-bonding member (δh) is 3 MPa 0.5 or more and less than 10.5 MPa 0.5 . The aqueous urethane resin composition has excellent film formability, corrosion resistance, chemical resistance, and substrate adhesiveness, and is capable of forming a low-toxic coating film.
Abstract:
An object of the present invention is to provide a method for producing a binder for inks and for use in producing an inkjet printing ink that has both good ink dischargeability and blend stability. A method for producing a binder for inkjet printing inks, the binder containing a hydrophilic-group-containing urethane resin (A), an acetylene compound (B), and an aqueous medium (C), includes step (1) of allowing Ga polyol (a1) containing a hydrophilic-group-containing polyol to react with a polyisocyanate (a2) in an organic solvent or in the absence of a solvent and feeding the organic solvent as needed to prepare an organic solvent solution [I], step (2) of mixing the organic solvent solution [I] with the acetylene compound (B) and the aqueous medium (C) to prepare a mixture [II], and step (3) of removing the organic solvent contained in the mixture [II].
Abstract:
The present invention provides a steel sheet surface treatment agent containing an aqueous urethane resin composition obtained by dispersing in (C) an aqueous medium a urethane resin obtained by reacting (A) a urethane prepolymer having an isocyanate group and (B) a terminator containing (b1) an alcohol solvent, wherein the urethane prepolymer (A) is obtained by reacting (a1) a polyol and (a2) a polyisocyanate containing an aromatic polyisocyanate, wherein the boiling point of the alcohol solvent (b1) is in the range of from 150 to 350°C and wherein the number average molecular weight of the alcohol solvent (b1) is 500 or less. The steel sheet surface treatment agent can form a coating film having excellent heat yellowing resistance, chemical resistance, and corrosion resistance and being capable of preventing deterioration of various types of metal substrates.
Abstract:
It is an object of the present invention to provide a binder for ink-jet printing ink that achieves excellent scratch resistance, high durability such as alkali resistance, and good ink dischargeability and that can form a printed image with high gloss and an ink-jet printing ink containing the binder. The present invention relates to a binder for ink-jet printing ink in which a vinyl polymer (B) is dispersed in an aqueous medium (D) by a urethane resin (A) having a hydrophilic group.
Abstract:
Provided is a poly(arylene ether ketone) resin which inhibits reactions such as molecular weight extension and crosslinking in a high-temperature molten state and which is excellent in melt viscosity stability and molding processability. The poly(arylene ether ketone) resin contains an alkylsulfonyl group represented by general formula (1). In the formula, R is an alkyl group containing one to four carbon atoms.
Abstract:
It is an object of the present invention to provide a binder for ink-jet printing ink that achieves excellent scratch resistance, high durability such as alkali resistance, and good ink dischargeability and that can form a printed image with high gloss and an ink-jet printing ink containing the binder. The present invention relates to a binder for ink-jet printing ink in which a vinyl polymer (B) is dispersed in an aqueous medium (D) by a urethane resin (A) having a hydrophilic group.
Abstract:
An object of the present invention is to provide a method for producing a binder for inks and for use in producing an inkjet printing ink that has both good ink dischargeability and blend stability. A method for producing a binder for inkjet printing inks, the binder containing a hydrophilic-group-containing urethane resin (A), an acetylene compound (B), and an aqueous medium (C), includes step (1) of allowing Ga polyol (a1) containing a hydrophilic-group-containing polyol to react with a polyisocyanate (a2) in an organic solvent or in the absence of a solvent and feeding the organic solvent as needed to prepare an organic solvent solution [I], step (2) of mixing the organic solvent solution [I] with the acetylene compound (B) and the aqueous medium (C) to prepare a mixture [II], and step (3) of removing the organic solvent contained in the mixture [II].
Abstract:
An object to be achieved by the present invention is to provide a binder for an ink-jet printing ink, the binder being capable of forming a printed image having excellent durability such as rubfastness and alkali resistance without impairing good ejection stability, storage stability, etc. of an ink, and an ink-jet printing ink containing the binder. The present invention relates to a binder for an ink-jet printing ink, the binder containing an aqueous medium (D); and a polyurethane (C) obtained by reacting a polyol (A) containing a vinyl polymer (a1) having two hydroxyl groups at one end and at least one polyol (a2) selected from the group consisting of polyether polyols, polyester polyols, polyester ether polyols, and polycarbonate polyols with a polyisocyanate (B), the polyurethane (C) having a structure derived from the vinyl polymer (a1) in a side chain thereof and being dispersed in the aqueous medium (D), and printed matter.