The present disclosure relates to self-sealing tires, a process for making said self-sealing tires and the use of a silicone composition cured via a condensation cure chemistry to form a self-sealing layer designed to function as both (i) a self-sealing tire puncture material, i.e., to seal puncture holes in the tread region of tires if/when punctured by a foreign body and (ii) as an adhesive for sound-absorbing foams adapted to reduce the noise generated by tires during travel.

Described herein is a Low TVOC flame-retardant polyurethane spray foam system, including at least one isocyanate as isocyanate component, and at least one substance reactive toward isocyanate, chain extender and/or crosslinking agent, flame retardant, blowing agent, catalysts, and additives and/or auxiliaries, as resin components, where the flame retardant includes expandable graphite and melamine, the amount of expandable graphite is in the range of from 5 wt % to less than 30 wt %, and the amount of melamine is in the range of from greater than 5 wt % to 30 wt %, each based on the total weight of the resin components. Also described herein are a polyurethane spray foam produced therefrom, the preparation thereof, and a method of use thereof in the application of heat insulation, sound insulation, cavity filling and damping packing.

Disclosed are a foaming material, a thermal insulation cabinet, and preparation methods therefor. The foaming material comprises 100 parts of a combined polyol, 10-30 parts of a foaming agent composition, and 120-150 parts of an isocyanate. In the present invention, the type of the polyol used in a foaming system is adjusted in order to increase the content of a polyester polyol and reduce the content of a polyether polyol, such that the compressive strength of the foaming material is significantly improved without increasing or changing the injection amount.

The hollow microballoons for CMP polishing pad of the invention are formed of at least one resin selected from the group consisting of a melamine resin, a urea resin and an amide resin and have an average particle size of 1 to 100 μm. According to the invention, there can be provided hollow microballoons for CMP polishing pad, which, when used in CMP polishing pad, exhibit excellent polishing characteristics, and can stably produce CMP polishing pad even in production of CMP polishing pad.

Described herein is a multilayer article comprising: a. a polymer substrate comprising an abstractable atom; and b. a hydrogel coating thereon wherein the hydrogel coating has a water content of at least 10 wt % and is covalently bonded to the polymer substrate, and wherein the hydrogel coating is derived from an aqueous composition having a pH less than 9.5, the aqueous composition comprising: (a) a hydrophilic monomer selected from at least one of (meth)acrylate or (meth)acrylamide; (b) at least 0.1 wt % of a water-swellable clay; (c) a first initiator, wherein the first initiator is water-soluble and is a Type I photoinitiator; and (d) a second initiator, wherein the initiator is water-soluble and is a Type II photoinitiator; and (e) an acid.

Foamed articles including a foamed thermoplastic elastomeric material, methods of making the foamed articles, and methods for manufacturing articles of footwear, apparel, and athletic equipment incorporating such foamed articles are provided. In one aspect, a method for making a foamed article comprises placing an article comprising a foamable material and carbon dioxide in a vessel, maintaining the vessel at a first pressure and first temperature at which the carbon dioxide is a liquid and carbon dioxide is soluble in the foamable material, optionally exposing the infused article to a second temperature and second pressure, and subjecting the article to a third pressure and third temperature at which the infused carbon dioxide phase transitions to a gas, thereby expanding the foamable material into a foamed material and forming the foamed article.

A method for synthesising polyurethane foam compositions convenient for use in areas wherein rigidity and lightness are required together in automotive sector and including the steps of: conduct of polyol dosage adjustment, adding inflating reaction catalyser onto polyol of convenient amount and mixing at mechanical mixture, adding glycerine while mixing is continued, adding surfactive while mixing is continued, adding gelling reaction catalyser while mixing is continued, adding cell opening agent while mixing is continued, adding cell opening agent while mixing is continued, adding at least an inflating agent selected from a group consisting of n-pentane, cyclo-pentane, C.sub.3H.sub.8O.sub.2 gas and C.sub.2H.sub.4O.sub.2 gas while mixing is continued, conduct of temperature adjustment of polyol base mixture, conduct of isocyanide dosage adjustment in a separate place, injecting polyol base mixture into reaction container from one side and isocyanides from other side, conduct of temperature control during reaction and opening mold and removing final product.

The thermoplastic polyurethane yarn of the present invention is excellent in abrasion resistance and durability because it contains thermoplastic polyurethane and nanosilica particles having hydrophobic functional groups on the surface thereof and is excellent in durability of a fine denier yarn, and can have a yarn in a form of continuous yarn without breaking yarn development during spinning or stretching. In particular, it is excellent in color dispersibility, antifouling property, scratch resistance, moldability, and the like.

Described herein is a multilayered article and methods of making and using such articles. The multilayered article comprises: .Math. (a) a microsphere layer comprising a plurality of microspheres (11) disposed in a monolayer; .Math. (b) a bead bonding layer (12) comprising a first major surface and a second opposing major surface wherein the plurality of microspheres is at least partially embedded in the first major surface of the bead bonding layer, and wherein the bead bonding layer comprises a thermoset polyurethane, and wherein the thermoset polyurethane is derived from one or more liquid polyols; and .Math. (c) an elastomeric layer (14) disposed on the second opposing major surface of the bead bonding layer.

The present disclosure relates to acid-blocked alkylaminopyridine catalysts for use in a polyurethane formulation. The polyurethane formulation may include the acid-blocked alkylaminopyridine catalyst, a compound containing an isocyanate functional group, an active hydrogen-containing compound and a halogenated olefin compound.