Synthetic resins or natural rubbers -- part of the class 520 series inventions 04/06

20060089417 - Polypropylene resin composition and foamed article produced therefrom: Disclosed is a polypropylene resin composition comprising from 50 to 95 wt. % of propylene homopolymer component (A) and from 5 to 50 wt. % of ethylene-α-olefin copolymer component (B1), the polypropylene resin composition having a melt index of not less than 40 g/10 min but less than 500 g/10...

20060084708 - Rigid foams with good insulation properties and a process for the production of such foams: Rigid foams having good insulation properties are made by reacting a polyisocyanate with an isocyanate-reactive material in the presence of a blowing agent composed of greater than about 0.5% by weight (based on total weight of foam forming materials) of water and less than about 12% by weight (based on...

20060084710 - Flexible foams with low bulk densities and compressive strengths: The present invention provides flexible polyurethane foams with bulk densities less than about 15 kg/m3 and compressive strengths less than about 1.5 kPa and a process for producing these foams. The inventive foams are produced where polyisocyanates are reacted with special polyol mixtures in combination with high amounts of water...

20060084709 - High-temperature rigid polyurethane spray foam for pipe insulation: The present invention provides a rigid polyurethane spray foam, which is made using cyclopentane as the blowing agent and which is useful for pipe insulation because of its ability to withstand high-temperatures (>250° F.). The inventive foams may be sprayed with existing foam spraying equipment because the foams are reacted...

20060084711 - Foaming mixtures: Foamable compositions which are preferably isocyanate-free and which exhibit good foaming properties including short application times and freedom from cracks in the cured foam, are obtained from alkoxysilane-terminated prepolymers preferably containing polyurethane moieties, a blowing agent component, and a solvent having a boiling point in excess of 30° C....

20060079587 - Organic, open cell foam materials, their carbonized derivatives, and methods for producing same: Organic, small pore area materials (“SPMs”) are provided comprising open cell foams in unlimited sizes and shapes. These SPMs exhibit minimal shrinkage and cracking. Processes for preparing SPMs are also provided that do not require supercritical extraction. These processes comprise sol-gel polymerization of a hydroxylated aromatic in the presence of...

20060079588 - Particulate materials for acoustic texture material: An aerosol texturing system for forming a textured surface on drywall material. The aerosol texturing system comprises an aerosol assembly defining a product chamber and acoustic texture material and propellant material disposed within the product chamber. The aerosol assembly is selectively operable in a first mode in which the product...

20060079590 - Polyurethane foam and process for producing the same: A polyurethane foam is obtained by mixing a polyol component and an isocyanate component under stirring to effect foaming, wherein water is used as a blowing agent in the polyol component, hydrous thermoplastic synthetic resin particles are added to at least one component of the polyol component and the isocyanate...

20060079589 - Polyurethane foam sheet and process for layered sheet with the same: A method of producing a polyurethane foam sheet, and a laminated sheet that uses such a foam sheet, that can be applied to artificial leather, synthetic leather, and cushioning materials used in all manner of applications. A polyurethane foam sheet is produced by applying a liquid mixture, obtained by mixing...

20060079591 - Novel foam modifier, foams prepared from this novel foam modifier and a process for the preparation of these foams: This invention relates to novel foam modifiers which can be used to prepare flexible foams. These novel foam modifiers provide improved processability and improved properties of the resultant flexible foams. The present invention also relates to the process of preparing these flexible foams and to the resultant foams....

20060074135 - Modified rubber particles and compositions including the same: Modified scrap rubber particles, a method for forming the modified rubber particles and compositions including the modified rubber particles. The rubber particles are impregnated with at least one polymerizable monomer and polymerized to impregnate the rubber particles with a polymer. The impregnated polymer provides the modified rubber particles with improved...

20060074136 - Process for recycling polyester materials: The present invention is a process for recycling colored polyester. More specifically, colored polyester for recycling is depolymerized by the addition of glycol to form the monomer BHET. The BHET is contacted with activated carbon to remove some colorant. The remaining colorant is extracted with water, alcohol, or glycol to...

20060074137 - Process for preparing expandable polystyrene resin and expandable polystyrene resin composition: Provided are a process for preparing an expandable polystyrene (EPS) resin using polyoxyethylene sorbitan monolaurate and a polyethylene wax synthesized from methylene oxide, and an EPS resin composition including a Sasol-wax which is a polyethylene wax synthesized from methylene oxide. The EPS resin is excellent in expandability and strength, and...