Patent classifications
C08G18/6625
HIGH-SOLIDS CURABLE FILM-FORMING COMPOSITIONS AND METHODS OF IMPROVING APPEARANCE OF COATINGS CONTAINING EFFECT PIGMENTS
High solids curable film-forming compositions and coating kits are provided, comprising: (a) a polyisocyanate curing agent; and (b) a film-forming component comprising at least one of (i) a secondary-hydroxyl functional (meth)acrylic polyol having pendant ester functional groups and a weight average molecular weight of 4000 to 8000; and (ii) a reactive constituent comprising: (1) a polymeric polyol comprising a polyester polyol and/or an addition polymer that is different from (i); and (2) an organic medium comprising a hydrophobic and/or sterically hindered reactive diluent having hydroxyl functional groups. Alternatively, the film-forming component (b) comprises the secondary-hydroxyl functional (meth)acrylic polyol (i) and optionally at least one of (1) and (2) above. The (meth)acrylic polyol comprises 20 to 35 percent by weight residues of an epoxy functional ethylenically unsaturated monomer. Methods of improving appearance of an effect pigment-containing coating layer on a substrate are also provided.
Glove
The present invention provides a glove having a coating formed of a urethane resin composition including a urethane resin (A) and water (B). The urethane resin (A) is produced using a polycarbonate polyol (a1-1) as a raw material. The coating has a 500% modulus of 7 MPa or less. Example urethane resins used as the urethane resin (A) preferably include: a urethane resin produced using a polycarbonate polyol (a1-1) and polytetramethylene glycol (a1-2) as raw materials at a specified mass ratio; and/or a urethane resin produced using a polycarbonate polyol (a1-1) and a compound (a1-4) as raw materials at a specified mass ratio, the compound (a1-4) having a number average molecular weight of less than 500, a branched structure, and 2 to 4 hydroxyl groups.
POLYURETHANE, URETHANE-(METH)ACRYLIC COMPOSITE RESIN, AND AQUEOUS DISPERSION OF URETHANE-(METH)ACRYLIC COMPOSITE RESIN
An object of the present invention is to provide an aqueous dispersion for use in a cosmetic, which has both the flexibility and hair styling properties (hair set retention properties), and which allows for easily re-styling hair when the hair style once set has been disturbed; and a cosmetic including the same. In the above mentioned aqueous dispersion and the cosmetic, a polyurethane is used, which is obtainable from a polyol component including at least one type of a polyether polyol and a polyester polyol, and a polyvalent isocyanate component, wherein the polyol component includes: a polyether polyol containing as a major component a structural unit derived from a polyalkylene glycol having from 2 to 4 carbon atoms, and having a number average molecular weight of 400 or more and 4,000 or less; or a polyester polyol containing a structural unit derived from at least one type of dicarboxylic acid selected from the group consisting of phthalic acid, isophthalic acid and terephthalic acid.
Polyurethane-based adhesives
The present disclosure generally relates to curable precursor compositions for a polyurethane adhesive. In one exemplary embodiment, the composition includes (a) an isocyanate component comprising one or more isocyanates and (b) an isocyanate-reactive component comprising (bi) one or more triols selected from polyether triols, polyester triols, polyether-polyester triols and combinations thereof; (bii) one or more tetrols, selected from polyether polyols, polyester polyols, polyether-polyester polyols; and wherein the composition further comprises a catalyst system capable of catalyzing the formation of polyurethanes wherein the curing catalyst system contains a combination of bismuth, zinc and zirconium salts. Also provided are polyurethane-based adhesives, methods of bonding components with the adhesives and articles containing components bonded by the adhesives.
Polyurethane, urethane-(meth)acrylic composite resin, and aqueous dispersion of urethane-(meth)acrylic composite resin
An object of the present invention is to provide an aqueous dispersion for use in a cosmetic, which has both the flexibility and hair styling properties (hair set retention properties), and which allows for easily re-styling hair when the hair style once set has been disturbed; and a cosmetic including the same. In the above mentioned aqueous dispersion and the cosmetic, a polyurethane is used, which is obtainable from a polyol component including at least one type of a polyether polyol and a polyester polyol, and a polyvalent isocyanate component, wherein the polyol component includes: a polyether polyol containing as a major component a structural unit derived from a polyalkylene glycol having from 2 to 4 carbon atoms, and having a number average molecular weight of 400 or more and 4,000 or less; or a polyester polyol containing a structural unit derived from at least one type of dicarboxylic acid selected from the group consisting of phthalic acid, isophthalic acid and terephthalic acid.
METHOD FOR PRODUCING LEATHER-LIKE SHEET
A problem to be solved by the invention is to provide a method for producing leather-like sheets with excellent chemical resistance and discoloration resistance utilizing an aqueous urethane resin composition. The invention provides a method for producing a leather-like sheet in the form of a laminate including a film, the method including forming the film by applying an aqueous urethane resin composition onto a substrate and drying the composition, the aqueous urethane resin composition including a urethane resin, a nonionic emulsifier and an aqueous medium, the urethane resin being one obtained by reacting a polyol including a carboxyl group-containing polyol, an aromatic polyisocyanate and a chain extender, the urethane resin having a urea bond content of not more than 0.3 mol/kg. The film is preferably used as a skin layer and/or a topcoat layer of the leather-like sheet.
SOLVENT-BORNE SYSTEM FOR FORMING AN N-ACYL UREA COATING
This disclosure provides a solvent-borne system for forming an n-acyl urea coating on a substrate. In one embodiment, the solvent-borne system comprises a polycarbodiimide-polyurethane hybrid. The solvent-borne system also comprises an acid functional polymer and an organic solvent, and comprises less than or equal to 10 weight percent of water based on a total weight of said solvent-borne system. The solvent-borne system also comprises less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the solvent-borne system.
Polyurethane/polyacrylic hybrid dispersions for shine applications in home care
A hard surface cleaning composition which provides a shine to hard surfaces and which is water resistant includes 0.001-50 wt. % of at least one detersive surfactant, at least 10 wt. % of a diluent, the diluent including water, and 0.01-40 wt. % of particles comprising at least one of an anionic polyurethane polymer and an anionic polyurethane hybrid polymer, formed as an aqueous dispersion, the particles having an average particle size of less than 170 nm.
ONE-PART POLYURETHANE ADHESIVE COMPOSITION, METHOD OF MAKING A LAMINATE, AND LAMINATE
Disclosed is a one-part, atmospheric curing, polyurethane adhesive composition that includes a polyurethane prepolymer that includes a reaction product of a polyol component and an isocyanate component, the polyol component comprising an unsaturated fatty acid esterified polyol comprising a reaction product of a first polyol and at least one of an ethylenically unsaturated oil and an ethylenically unsaturated fatty acid, the first polyol comprising at least three hydroxyl groups, and a % NCO of from at least 4% by weight to no greater than 7% by weight based on the weight of the prepolymer, the adhesive composition exhibiting a viscosity of no greater than 15,000 centipoise at 60 C., and a T-peel value of greater than 40 grams per 25 millimeter in no greater than 4 hours, a method of making a laminate, and a laminate that includes a one-part, atmospheric curing, polyurethane adhesive composition.
Process for the production of coated textiles
A process for the production of coated textiles comprises the steps of: providing a textile substrate having a first side and a second side opposing the first side; contacting at least a part of the first side of the textile substrate with a spreadable polyurethane mechanical foam; applying a reduced pressure to at least a part of the second side of the textile substrate opposing the first side which has been contacted with the polyurethane mechanical foam; and solidifying the polyurethane mechanical foam with which the textile substrate has been contacted. The invention further relates to a coated textile obtainable by such a process, in particular a synthetic leather.