Synthetic resins or natural rubbers -- part of the class 520 series inventions 05/06

20060111458 - Thermoplastic and polymer foams and method of preparation thereof: A foamed starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder in the presence of a blowing agent. The foams are biodegradable....

20060111459 - Flame retardant composition and polyurethane foam containing same: f

20060106120 - Method of degrading plastic and process for producing useful substance using the same: A method of degrading a plastic in the presence of a biosurfactant; a method of degrading a plastic by contacting the plastic with a microorganism; a process for producing a useful substance from a plastic which comprises degrading the plastic by contacting the plastic with a microorganism and further converting...

20060106121 - Method for recycling foamed polystyrol resin: Provided are a method for recycling expanded polystyrene, comprising steps of: reducing a volume of the expanded polystyrene 110; dissolving the volume-reduced polystyrene in a solvent 130; and extruding the dissolved expanded polystyrene 160; and a separation and recovery apparatus of a polystyrene solution used in the extruding step. The...

20060106122 - Extruded polystyrene resin foam board and process for preparing the same: The present invention relates to a process for preparing an extruded polystyrene resin foam board having excellent flame retardancy and recyclability, which comprises extruding and foaming a foamable composition, the foamable composition containing a polystyrene resin, a blowing agent and a specific flame retardant including a phosphate ester and a...

20060106123 - Composition comprising an elastomeric polymer and an olefinic polymer: Foamed composition comprising: 100 parts by weight elastomeric polymer (A), comprising monomeric units of ethylene and an α-olefin, 1-50 parts by weight olefinic polymer (B), and further comprising 98-65 weight % monomeric units of ethylene; and 2-35 weight % monomeric units of an alpha-olefin having 4-12 carbon atoms, polymer B...

20060106125 - Use of highly branched polyols for the preparation of polyurethane foams, two-component foam systems containing these polyols, and their use: Described are the use of highly branched and/or dendritic polyols with a number average molecular weight (Mn) of 500 to 100,000 g/mole and preferably of 1,000 to 10,000 g/mole and an average hydroxy functionality per molecule of 10 to 1000 and preferably of 25 to 100, as polyol for the...

20060106124 - Viscoelastic rebond polyurethane foam structure: A rebond polyurethane foam structure is formed by mixing shredded particles of polyurethane foam wherein at least 20% by weight of such particles comprise particles of viscoelastic polyurethane foam. The foam particles are wetted with a liquid prepolymer binder that is cured when the wetted admixture is compressed at a...

20060100294 - Partially fluorinated copolymer based on trifluorostyrene and substituted vinyl compound and ionic conductive polymer membrane formed therefrom: P

20060100295 - Liquid foam systems and astm e-84 class 1 rated rigid, high-density polyurethane foams and articles prepared therefrom: An all-liquid foam-forming system contains: a first part (A) containing at least one liquid isocyanate or polyisocyanate; and a second part (B) containing: at least one liquid aromatic polyester polyol having an hydroxyl value of at least 110 mg KOH/gram and an average hydroxyl functionality of at least 2, at...

20060100297 - Foamable composition: A foamable composition comprises at least about 50 wt % of a copolymer of ethylene and alkyl (meth)acrylate having a broad chemical composition distribution (CCD), and having a melt index between about 7 and about 30; about 2 to about 40 wt % of a polyolefin having a carboxylic acid...

20060100296 - Low density polymeric foam using a three-polymer blend: A polymeric composition to be used in producing low density foam in which the polymeric composition comprises high density polyethylene, alkenyl aromatic polymer and a linear low density polyethylene. The polymeric resins may be prime virgin resin, offgrade virgin resin, recycled resin from a post industrial source, recycled resin from...

20060094792 - Proton conducting membrane for fuel cells: An ion conducting membrane comprising dendrimeric polymers covalently linked into a network structure. The dendrimeric polymers have acid functional terminal groups and may be covalently linked via linking compounds, cross-coupling reactions, or copolymerization reactions. The ion conducting membranes may be produced by various methods and used in feul cells....

20060094793 - Method for treatment of polyester materials: A method for processing polyester wastes, especially used polyester bottles, which comprises shredding, washing, drying and melting the waste mixture to obtain a starting raw material wherein a modifying agent selected from the group comprising a combination of polysiloxane and a plasticizer selected from the group of phthalates, or a...

20060094794 - Moisture resistant polyurethane prepolymers: The disclosed invention relates to a method of making polyurethane prepolymers which have improved moisture resistance. The disclosed invention also relates to methods of manufacture of rebonded foam wherein the improved moisture resistant polyurethane prepolymers are used to bond polyurethane foam crumb....