An active energy ray curing composition contains a urethane acrylate oligomer (A) having three or more polymerizable functional groups, a polyfunctional monomer (B) having three or more polymerizable functional groups, a monofunctional monomer (C), and a surfactant (D) having a siloxane bond, wherein the urethane acrylate oligomer (A) has a glass transition temperature of 85 degrees C. or lower, wherein the urethane acrylate oligomer (A) has a weight average molecular weight of from 1,000 to 9,000, wherein the polyfunctional monomer (B) accounts for 22.0 to 60.0 percent by mass of the entire of the active energy ray curing composition.

The present invention relates to an adhesive, a preparation method and application thereof, particularly the application for bonding glass fiber composites, and a bonded article obtained by using the adhesive. The adhesive comprises: a polyisocyanate having an isocyanate functionality of not less than 2; an epoxy-modified polyether polyol; a hydroxyl-containing acrylate; a redox catalyst; a silane coupling agent; optionally a polyol containing bisphenol A structure; and optionally a polymer polyol different from the epoxy-modified polyether polyol. The adhesive according to the present invention has the advantages of being insensitive to moisture, good bonding properties and a long pot life.

The present invention relates to an adhesive, a preparation method and application thereof, particularly the application for bonding glass fiber composites, and a bonded article obtained by using the adhesive. The adhesive comprises: a polyisocyanate having an isocyanate functionality of not less than 2; an epoxy-modified polyether polyol; a hydroxyl-containing acrylate; a redox catalyst; a silane coupling agent; optionally a polyol containing bisphenol A structure; and optionally a polymer polyol different from the epoxy-modified polyether polyol. The adhesive according to the present invention has the advantages of being insensitive to moisture, good bonding properties and a long pot life.

A stretchable film includes, in a stacked form: a polyurethane film containing a repeating unit having a fluorine atom; and a polyurethane film containing a repeating unit having a silicon atom. At least one surface of the stretchable film is made of the polyurethane film containing a repeating unit having a fluorine atom. Thus, provided are: a stretchable film having excellent stretchability and strength, with the film surface having excellent water repellency; and a method for forming the stretchable film.

A stretchable film includes, in a stacked form: a polyurethane film containing a repeating unit having a fluorine atom; and a polyurethane film containing a repeating unit having a silicon atom. At least one surface of the stretchable film is made of the polyurethane film containing a repeating unit having a fluorine atom. Thus, provided are: a stretchable film having excellent stretchability and strength, with the film surface having excellent water repellency; and a method for forming the stretchable film.

An aqueous dispersion containing at least one copolymer, the copolymer being preparable by initially charging an aqueous dispersion of at least one polyurethane, and then polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane, where a water-soluble initiator is used, the metered addition of the olefinically unsaturated monomers is effected in such a way that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers, in the reaction solution is not exceeded over the entire duration of the reaction, and the mixture of the olefinically unsaturated monomers contains at least one polyolefinically unsaturated monomer.

The present invention relates to a conjugate of albumin and a temperature- and pH-sensitive multi-block copolymer, a method of preparation thereof, and a sustained-release drug carrier comprising the same, and more specifically, to a conjugate in which polyethylene glycol-poly(amino urethane) (PEG-PAU) or polyethylene glycol-poly(amino ester urethane) (PEG-PAEU) multi-block copolymer is conjugated to albumin, a method of preparing the same, and a long-term sustained-release drug carrier comprising the same, capable of reducing an initial burst release of drugs and improving an affinity to drugs.

To provide a binder that has high adhesiveness to a collector, does not cause release in press molding, has high flexibility, and is excellent in binding capability and resistance to an electrolytic solution, and to provide a lithium secondary battery that is excellent in charge and discharge characteristics using an electrode produced with the binder. The binder for an electrode used contains a hydrophilic group-containing polyurethane as a water dispersion that contains (A) a polyisocyanate, (B) a compound that has two or more active hydrogen groups, (C) a compound that has one or more active hydrogen groups and one or more hydrophilic groups, and (D) a chain extending agent, or contains an aqueous resin composition containing a polymer of an unsaturated polymerizable monomer that is emulsified with the hydrophilic group-containing polyurethane.

The presently disclosed and/or claimed inventive concept(s) relates generally to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymers and methods thereof. More specifically, the presently disclosed and/or claimed inventive concept(s) relates to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymer obtained from, for example but not by way of limitation, waste products, such as beverage containers made from polyethylene terephthalate (PET). The oligomeric reaction products can, in one embodiment, be used as a starting material for polyurethanes. The presently disclosed and/or claimed inventive concept(s) also relates to processes for producing oligomeric reaction products from the depolymerization of polyethylene terephthalate. More particularly, the presently disclosed and/or claimed inventive concept(s) relates to a process of producing oligomeric reaction products of polyethylene terephthalate capable of controlling the removal of byproducts during the reaction. The presently disclosed and/or claimed inventive concept(s) also relates to ultraviolet curable urethane acrylate and polyethylene terephthalate compositions and methods of making and uses thereof.

The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.