A process for forming a combustion-modified ether (CME) polyurethane foam includes providing a polyol component including a PIPA polyol that is a dispersion having a solids content from 10 wt % to 75 wt %, based on a total weight of the PIPA polyol, providing an isocyanate component that includes at least one polyisocyanate, providing an additive component that includes at least one flame retardant, and forming a reaction mixture including the polyol component, the isocyanate component, and the additive component to form a CME polyurethane foam. The reaction mixture has an isocyanate index from 90 to 150. The PIPA polyol is a reaction product of a mixture including at least a low equivalent weight polyol having a number average hydroxyl equivalent weight of less than 80, a polyisocyanate compound having a number average isocyanate equivalent weight that is less than 225, and a liquid base poly ether polyol having a number average hydroxyl equivalent weight of at least 200 and at least 80% of secondary hydroxyl groups based on a total amount of hydroxyl groups in the liquid base polyether polyol.

The present invention provides two-component aqueous textured layer forming compositions useful for forming flexible top coat layers for sports surfaces. The compositions comprise vulcanized or crosslinked rubber granules, for example, EPDM rubber, a soft:hard acrylic emulsion copolymer blend in a solids weight ratio to vulcanized or crosslinked rubber granule solids that ranges from less than 1:4 to 1:9, a polyalkylene oxide rheology modifier, one or more high boiling alcohols and, as a separate component, an aqueous dispersion of an aliphatic polyisocyanate as well as an epoxy silane. The vulcanized or crosslinked rubber granules may have a sieve particle size of 8 mm or less. The inventive top coat layers have enhanced tensile strength and elongation as well as improved pot life and color stability.

An adhesive for laminated sheets comprising a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound. The acrylic polyol is obtained by polymerizing a mixture including a first monomer having a hydroxyl group and acrylonitrile. The isocyanate compound includes both an isocyanate compound having no aromatic ring and an isocyanate compound having an aromatic ring. Also cured reaction products of the adhesive and films laminated using the adhesive.

A process for preparing a polyurethane product, and polyurethane compositions and products of the process. The process includes preparing a catalyst composition comprising at least one tertiary amine salt, wherein the at least one tertiary amine salt is a contact product of at least one carboxylic acid and at least one tertiary amine, wherein the at least one tertiary amine is selected from the group consisting of N-hydroxyethylpiperidine and tris(dimethylaminomethyl)phenol; and reacting at least one isocyanate, at least one polyol and the catalyst composition to form a polyurethane product.

Disclosed is an adhesive for laminated sheets comprising a urethane resin obtained by blending: (A) an acrylic polyol; (B) at least one component selected from carboxylic acids and carboxylic anhydrides; and (C) an isocyanate compound. The acrylic polyol (A) is obtained by polymerization of a polymerizable monomer, has a glass transition temperature of from −35° C. to 20° C., and has a hydroxyl value of from 0.5 to 40 mgKOH/g. The adhesive for laminated sheets is excellent in initial adhesion to a film, peel strength after aging and hydrolysis resistance for a long time under high temperature when a laminated sheet is produced, and wherein the adhesive does not impart an adverse effect to the appearance of the laminated sheet and the lamination process of films while improving the curability. The laminated sheet is suitably prepared using the adhesive for laminated sheets. An article comprising the laminated sheet can be prepared using the laminated sheet.

An adhesive for laminated sheets, which is excellent in adhesive strength to a film after curing and long-term hydrolysis resistance at high temperature and high humidity when a laminated sheet is produced, and is also excellent in adhesive property at low temperature. Disclosed is an adhesive for laminated sheets, which comprises a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound, and also has a chemical structure derived from a diene polymer, wherein the diene polymer has a glass transition temperature of −40° C. or lower. The adhesive for laminated sheets is excellent in adhesive strength to a film after curing and long-term hydrolysis resistance at high temperature and high humidity when a laminated sheet is, produced, and is also excellent in adhesive property at low temperature.

To provide a film which is excellent in releasing property with respect to a resin sealed portion and excellent in low migration property and peeling property with respect to a semiconductor chip, a source electrode or a sealing glass and which is suitable as a mold release film for producing a semiconductor element having a part of the surface of a semiconductor chip, source electrode or sealing glass exposed. A film 1 which comprises a substrate 3 and an adhesive layer 5, wherein the storage elastic modulus at 180° C. of the substrate 3 is from 10 to 100 MPa, and the adhesive layer 5 is a reaction cured product of a composition for adhesive layer comprising a specific acrylic polymer and a polyfunctional isocyanate compound, wherein the number of moles M.sub.OH of hydroxy groups and the number of moles M.sub.COOH of carboxy groups, derived from the acrylic polymer, and the number of moles M.sub.NCO of isocyanate groups derived from the polyfunctional isocyanate compound, satisfy a specific relation, and which is suitable as a mold release film for producing a semiconductor element.

A composition for producing a flame retardant open-celled semi-rigid polyurethane foam including: (a) at least one polyisocyanate, (b) at least one polyol, (c) at least one expandable graphite, (d) at least one blowing agent, (e) at least one catalyst, (f) at least one liquid flame retardant, (g) at least one cell opener, (h) at least one ethoxylated alcohol, and (i) at least one antioxidant; a process for producing the above composition; a flame retardant open-celled semi-rigid polyurethane foam produced using the above composition; and a process for producing the above flame-retardant open-celled semi-rigid polyurethane foam.

The present invention relates to polyurethane hybrid polymers and to a process for producing same.

The present invention relates to polyurethane hybrid polymers and to a process for producing same.