A polyurethane-based UV absorber, obtained by reacting a UV absorber having a reactive hydrogen with a polyisocyanate and a diol or polyol; wherein the weight average molecular weight of the polyurethane-based UV absorber is in a range of 10,000 to 200,000.

Provided is an inkjet ink including: a resin having a polymerizable resin; a gel particle which includes a polymerizable group, includes a three-dimensional cross-linked structure containing at least one selected from the group consisting of a urethane bond and a urea bond, and includes a photopolymerization initiator in the interior of the gel particle; and water, in which a total amount of a solid content of the gel particle with respect to a total amount of the resin having a polymerizable group is 0.1% by mass to 100% by mass. Also provided are a method for manufacturing the inkjet ink and an inkjet recording method using the inkjet ink.

An aqueous coating agent of the invention comprising (A) an aqueous polyurethane resin containing a polyurethane resin having an acid group and a polyamine compound, (B) a water-soluble polymer, and (C) an inorganic layered mineral as main constituents, wherein solid formulation ratios of the aqueous polyurethane resin (A), the water-soluble polymer (B) and the inorganic layered mineral (C) occupied in a total solid content of the aqueous coating agent are within approximate ranges indicated below. Aqueous polyurethane resin (A): 5 to 60 mass % Water-soluble resin (B): 25 to 80 mass % Inorganic layered compound (C): 8 to 20 mass %

Methods for forming top coats include spray-applying a waterborne top coat composition on the substrate to form a top coat layer, wherein the waterborne top coat composition comprises water, pigment(s) and resin solids, the resin solids comprising about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to about 50 mg KOH/g, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %; and curing the top coat layer to form a cured top coat.

In a laminate film 1 including a substrate 2, a polyurethane layer 3 formed on the substrate 2, and a metal vapor deposition layer 4 formed on the polyurethane layer 3, a coating liquid is applied on the substrate 2 and dried to produce the polyurethane layer 3. The coating liquid contains a water dispersible polyisocyanate and a polyurethane dispersion containing polyurethane resin produced by reaction of an isocyanate group-terminated prepolymer with a chain extender. The isocyanate group-terminated prepolymer is produced by reaction of a polyisocyanate component including xylylene diisocyanate and/or hydrogenated xylylene diisocyanate and a polyol component including diol having 2 to 6 carbon atoms and an active hydrogen group-containing compound containing a hydrophilic group.

A laminate film which exhibits excellent gas barrier properties and lamination strength even after a severe retort treatment or which is small deterioration of gas barrier properties and hardly cause interlayer peeling can be provided. The laminate film comprises a coating layer, a metal oxide layer and a protective layer, with another intervening layer or without any intervening layer, laminated in this order on at least one surface of a polyester substrate film, wherein the coating layer comprises an oxazoline group-containing resin (A) and a polyurethane resin (B), wherein the metal oxide layer comprises a composite oxide composed of silicon oxide and aluminum oxide, and wherein the protective layer comprises a polyurethane resin (D), the polyurethane resin (D) contains a metaxylylene group in an amount of 20 to 33% by mass and a silanol group in an amount of 700 to 1700 mg per kg of a resin constituting the polyurethane resin (D), as a Si element amount contained in the silanol group.

There are provided gel particles which have a polymerizable group, and a three-dimensional crosslinked structure including at least one bond selected from a urethane bond and a urea bond, and enclose a photopolymerization initiator, an ink composition including the gel particles and a production method thereof, a photosensitive composition, and an image forming method.

An aqueous coating composition includes an aqueous polyurethane resin including a polyurethane resin having an acid group and a polyamine compound, a water-soluble polymer, and an inorganic layered mineral. The aqueous polyurethane resin is included at a solid content of 50-80 mass %, the water-soluble polymer is included at a solid content of 5-20 mass %, and the inorganic layered mineral is included at a solid content of 10-30 mass %, relative to a total solid content of the aqueous coating composition. The aqueous coating composition has a total solid concentration of not less than 5 mass % and a viscosity of not larger than 50 mPa-second at 23 C.

The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one compound of the formula (I)

X.sub.1-Y-X.sub.2(I)

in which
X.sub.1 and X.sub.2, independently of one another, are each a functional group which is reactive toward hydroxyl groups, and Y is a divalent aliphatic or araliphatic, carboxy-functional organic radical having a number-average molecular weight of 100 to 1000 g/mol, with
(b) at least one polyether of the general structural formula (II)

##STR00001##

in which
R is a C.sub.3 to C.sub.6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 200 to 4000 g/mol, where components (a) and (b) are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses a number-average molecular weight of 500 to 15 000 g/mol and an acid number of 10 to 120 mg KOH/g.

A process for producing a polymer foam comprises reacting components A to C in the presence of component D and optionally E or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D and optionally component E, the total amount of which is 100 wt %, (A) 35 to 65 wt % of at least one polyisocyanate component A, wherein 10 to 100 wt % of component A is a condensation product comprising polyimide groups and resulting from condensing at least one polyisocyanate component with at least one polycarboxylic acid having at least 3 COOH groups per molecule or its anhydride, (B) 5 to 50 wt % of at least one polyol component B, (C) 1 to 59 wt % of at least one polycarboxylic acid component C, and (D) 0.01 to 3 wt % of at least one Lewis base component D, (E) 0 to 5 wt % of at least one foam stabilizer component E,
wherein the reaction takes place with release of carbon dioxide.