Cellular and multi-cellular polystyrene and polystyrenic foams and methods of forming such foams are disclosed. The foams include an expanded polystyrene formed from expansion of an expandable polystyrene including an adsorbent comprising alumina, wherein the multi-cellular polystyrene exhibits a multi-cellular size distribution. The process for forming a foamed article includes providing a formed styrenic polymer and contacting the formed styrenic polymer with a first blowing agent and an adsorbent comprising alumina to form extrusion polystyrene. The process further includes forming the extrusion styrenic polymer into an expanded styrenic polymer and forming the expanded styrenic polymer into a foamed article.

Provided herein is a composite material that includes at least one thermoresponsive polymer and at least one organic foam material. Further provided herein is a method for producing the composite material and also to the use of the composite material for cooling and for regulating temperature.

A rigid polyurethane foam formulation comprising a polyester polyol having a hydroxyl number of from 150 to 600 mg KOH/g and a functionality of at least 2, a blowing agent comprising water and an auxiliary blowing agent, a non-silicone organic surfactant, greater than 0.1% to less than 3.7% of a cyclic siloxane, by weight based on the total weight of the foam formulation, a catalyst, and optionally a flame retardant; and a polyisocyanate; such that the isocyanate index is in the range of from 100 to 500, a rigid polyurethane foam formed from the foam formulation; and a method of forming a rigid polyurethane foam.

The present disclosure relates to improving insulation properties of foams by employing an azeotropically-modified blowing agent that preserves or improves R-value at various temperatures such as lower than ambient temperatures (below 24° C.). The present disclosure also provides foams with improved long-term thermal resistance (LTTR).

Described herein is a polyurethane foam produced in a “one shot process” that has low density, is semi-hard, and displays a high rebound value all while providing superior split tear performance. The polyurethane foam can be used in a “one shot process” to produce a shoe sole, a mid-sole or an insole for a shoe. The shoe sole may be used for forming an outer sole of a sandal type shoe, a midsole of an athletic type shoe, or an insole for insertion into any type of shoe.

A latex or natural rubber composition or formulation, latex or rubber products made using the same, and methods of preparing a vulcanized rubber and latex or natural rubber products are disclosed. The composition/formulation includes latex or natural rubber, 0.1-5 phr of a vulcanization activator, and 0.5-10 phr of one or more accelerators and/or additional activators. At least one accelerator and/or additional activator is a nanocomposite zinc oxide. The method includes. mixing a source of the latex or rubber with a vulcanization activator and one or more nanocomposite zinc oxides in a tank or vessel to form a latex or rubber formulation, dipping or at least partially immersing one or more molds or formers in the latex or rubber formulation to form a latex or rubber coating thereon, and curing the latex or rubber coating to vulcanize the latex or rubber coating. The vulcanized latex product is strong and has antimicrobial properties.

A composition for preparing polyisocyanurate and polyurethane foams is provided, comprising A) an isocyanate-reactive component, B) a polyisocyanate component and C) a branched siloxane comprising at least three trimethylsiloxy groups. A method for preparing the polyisocyanurate and polyurethane foams, and foams prepared thereby are also provided.

This disclosure generally provides compositions with improved flammability resistance and processes for preparing these compositions, wherein the resin composition comprising: (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition comprising (b1) a polyfunctional polyol and a catalyst composition; and/or (b2) a polyfunctional amine; and (c) a benzoxazine component solved in the resin composition.

The disclosure includes brominated alkenyl alcohols, their use as a flame retardant in polyurethane and polyurethane foams, and polyurethanes containing the brominated alkenyl alcohols. Compositions, methods, and processes are disclosed. The brominated alkenyl alcohols used as flame retardants in polyurethanes can be generally described by Formula (I), the scope of which is disclosed herein.

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The present invention relates to a process for producing translucent polyurethane and polyisocyanurate foams by reaction of a component A, comprising A1 at least one polyol reactive with component B; A2 optionally at least one amine; A3 water and optionally formic acid or at least one physical blowing agent or mixtures thereof; A4 at least one foam stabilizer; A5 optionally auxiliary and/or additive substances; A6 optionally at least one flame retardant; A7 at least one catalyst; and a component B, comprising B1 at least one aliphatic or cycloaliphatic polyisocyanate component or a combination thereof; and B2 optionally at least one hydrophilized isocyanate; and B3 more than or equal to 10 parts by weight and up to 70 parts by weight of an aromatic polyisocyanate component, wherein the parts by weight of B3 are based on the sum of the parts by weight of B1 to B3 which are normalized to 100 parts by weight. The invention is characterized in that the reaction of component A with component B is carried out at an isocyanate index of at least 150, wherein the obtained translucent polyurethane and polyisocyanurate foams have a light transmission according to EN ISO 13468-2:2006 of at least 10% and a haze of at least 70%, determined according to ASTM D1003-13, in each case measured at a layer thickness of 20 mm. The present invention further relates to the polyurethane and polyisocyanurate foams obtained by the process and to the use thereof as a construction element, as a wall element, as a floor element, in buildings, in vehicles or lamps.