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| Number | Title | Issue Date |
| 7842736 | Porous carbons A method is provided for making mesoporous resin. It comprises: (a) providing a nucleophilic component which comprises a phenolic compound or a phenol condensation prepolymer optionally with one or more modifying reagents selected ... | 11/30/2010 |
| 7714031 | Shaped articles of melamine/formaldehyde foams having low formaldehyde emission Shaped articles of melamine/formaldehyde foam have a formaldehyde emission of less than 0.1 ppm, determined according to DIN 55666, and are obtainable by the following process: a) a foam is prepared from a melamine/formaldehyde pre... | 05/11/2010 |
| 7167354 | Mesoporous carbons and polymers from hydroxylated benzenes A mesoporous polymer and method of preparing a mesoporous polymer whose polymerization kinetics are dependent upon pH and whose pore size is controlled by pH and solvent concentration are disclosed. The polymer is optionally pyrolyzed to form a primarily carbonaceou... | 01/23/2007 |
| 7040575 | Foam composite insulation for aircraft Insulation for use in an aircraft fuselage is formed wherein at least one layer made from an open-celled foam that provides acoustic and thermal insulation. The open-celled foam is compression fitted into the airplane fuselage so as to provide effective attachment t... | 05/09/2006 |
| 6960617 | Hydrogels having enhanced elasticity and mechanical strength properties Hydrogels having improved elasticity and mechanical strength properties are obtained by subjecting a hydrogel formulation containing a strengthening agent to chemical or physical crosslinking conditions subsequent to initial gel formation. Superporous hydrogels havi... | 11/01/2005 |
| 6930221 | Absorbent structure having improved absorption properties An absorbent structure in an absorbent article such as a diaper, a pant diaper, an incontinence guard, a sanitary napkin or the like, includes a combination of a porous material such as fibers and/or foam, and at least 50% by weight of a superabsorbent material in a... | 08/16/2005 |
| 6924322 | Thio-,amine-,nitro-,and macrocyclic containing organic aerogels & xerogels An organic aerogel or xerogel formed by a sol-gel reaction using starting materials that exhibit similar reactivity to the most commonly used resorcinol starting material. The new starting materials, including thio-, amine- and nitro-containing molecules and functio... | 08/02/2005 |
| 6828354 | Hydrophilic open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products Hydrophilic open-celled resilient foams comprising melamine-formaldehyde resins, obtainable by (a) heating and crosslinking an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsi... | 12/07/2004 |
| 6689836 | Process for the preparation of thermoprecipitating affinity polymers The present invention relates to a process for the preparation of thermoprecipitating affinity polymers useful in the enhanced recovery of enzymes. The process comprises polymerising a monomer comprising a spacer and a co-monomer with a polymerisation ini... | 02/10/2004 |
| 6608118 | Melamine molded foam, process for producing the same, and wiper A melamine molded foam is produced by heat-compressing a melamine foam to a thickness of 1/1.2 to 1/12 to cause plastic deformation and temporarily fixing the shape; the heat-compression is performed under the conditions of from 210 to 350° C. for 3 minu... | 08/19/2003 |
| 6607817 | Melamine resin foam with excellent oil repellency A melamine resin foam endowed with excellent oil repellency and which is improved in fragility without deteriorating the superior properties inherently possessed by melamine resin foams. The melamine resin foam with excellent oil repellency is obtained by... | 08/19/2003 |
| 6506808 | Microcellular thermoset foams and method for producing the same Microcellular rigid foams with a matrix consisting of cross-linked duromers, especially of polytriazine resins, and with an apparent density of 20 to 95 percent of the density of the compact matrix material. The rigid foams are highly stable and highly te... | 01/14/2003 |
| 6486285 | Water-swellable polymer gel and process for preparing the same A water-swellable polymer gel prepared by reacting an ester of a carboxyl group-containing polysaccharide with a compound having at least two -amino groups, which is derived from a natural amino acid, and a foamed article thereof. The water-swellab... | 11/26/2002 |
| 6399666 | Insulative matrix material The invention relates to a process for forming an integrated circuit device comprising (i) a substrate; (ii) metallic circuit lines positioned on the substrate and (iii) a dielectric material positioned on the circuit lines. The dielectric material compri... | 06/04/2002 |
| 6350511 | Melamine resin foam The invention relates to open-celled melamine foams which have improved fire performance and whose cell-structure surface has been to some extent or entirely coated with an ammonium salt.... | 02/26/2002 |
| 6271278 | Hydrogel composites and superporous hydrogel composites having fast swelling, high mechanical strength, and superabsorbent properties A superporous hydrogel composite is formed by polymerizing one or more ethylenically-unsaturated monomers, and a multiolefinic crosslinking agent, in the presence of particles of a disintegrant and a blowing agent. The disintegrant, which rapidly absorbs ... | 08/07/2001 |
| 6110578 | Expanded material and laminate The present invention provides a biodegradable expanded material having excellent expandability, moldability, impact resistance, heat resistance and storage stability. The present invention also provides a process for the preparation of the foregoing expa... | 08/29/2000 |
| 6087407 | Flexible aerogel composite for mechanical stability and process of fabrication A flexible aerogel and process of fabrication. An aerogel solution is mixed with fibers in a mold and allowed to gel. The gel is then processed by supercritical extraction, or by air drying, to produce a flexible aerogel formed to the shape of the mold. T... | 07/11/2000 |
| 5973015 | Flexible aerogel composite for mechanical stability and process of fabrication A flexible aerogel and process of fabrication. An aerogel solution is mixed with fibers in a mold and allowed to gel. The gel is then processed by supercritical extraction, or by air drying, to produce a flexible aerogel formed to the shape of the mold. T... | 10/26/1999 |
| 5962539 | Process and equipment for drying a polymeric aerogel in the presence of a supercritical fluid A process for obtaining an aerogel from a polymeric material that is in the form a sol-gel in an organic solvent, by exchanging the organic solvent for a fluid having a critical temperature below a temperature of polymer decomposition, and supercritically... | 10/05/1999 |
| 5916999 | Process for producing filaments from melamine/formaldehyde condensation products A process for producing continuous filament fibers from a hydroxy- or amino-alkyl-melamine modified melamine-formaldehyde condensation product comprises filtering the highly concentrated aqueous solution of the melamine-formaldehyde condensation product, ... | 06/29/1999 |
| 5731360 | Compression molding of aerogel microspheres An aerogel composite material produced by compression molding of aerogel microspheres (powders) mixed together with a small percentage of polymer binder to form monolithic shapes in a cost-effective manner. The aerogel composites are formed by mixing aero... | 03/24/1998 |
| 5705535 | Method for the subcritical drying of aerogels Process for the preparation of aerogels by subcritical drying of inorganic and organic hydrogels and lyogels to give aerogels, dielectric drying methods being used.... | 01/06/1998 |
| 5541234 | Process for making low density hydrogel materials having high surface areas A process for making a crosslinked, highly porous body derived from a water-soluble, hydrogel polymer, wherein the porous body is characterized in that it has an open-celled 3-dimensional lattice structure, a density of less than about 1.0 g/cm3 | 07/30/1996 |
| 5525644 | Potted electrical components and methods of making the same This invention relates to an article comprising a potted electrical component in a structure, wherein the electrical component is potted in a polyimide composition. The invention also relates to a method of potting electrical components comprising the ste... | 06/11/1996 |
| 5514726 | Polymer foams with inherent nonflammability and thermal stability and methods of preparation thereof Polymeric foams with novel chemical compositions are prepared by the condensation of specially-synthesized precursors, which contain (in addition to carbon and hydrogen) one or more of the following elements: oxygen, fluorine, nitrogen (in structures with... | 05/07/1996 |
| 5494940 | Low density materials having high surface areas and articles formed therefrom A crosslinked, highly porous body derived from a water-soluble, hydrogel polymer, wherein the porous body is characterized in that it has an open-celled 3-dimensional lattice structure, a density of less than about 1.0 g/cm3, a surface area of ... | 02/27/1996 |
| 5436278 | Melamine resin foam, process for production thereof and melamine/formaldehyde condensate The present invention provides: a melamine resin foam obtained by foaming a resin composition comprising a melamine/formaldehyde condensate, a blowing agent and an isocyanate, a process for producing the above melamine resin foam, which comprises foaming a res... | 07/25/1995 |
| 5413853 | Melamine resin foam The present invention provides a melamine resin foam comprising a foam body obtained by foaming a resin composition composed mainly of a melamine-formaldehyde condensate and a blowing agent, and hydrophobic component coated on said foam body. This melamin... | 05/09/1995 |
| 5360832 | Hollow particles of crosslinked melamine resin having a uniform particle diameter and a process for producing the same A process for producing hollow particles of crosslinked melamine resin having a uniform particles diameter, said process comprising subjecting a water-soluble methyl-etherified-melamine resin precondensate to condensation reaction in the presence of a cur... | 11/01/1994 |
| 5328939 | Rigid materials having high surface area and low density This invention relates to highly porous, crosslinked bodies derived from nitrogen-containing polymers, and a process of producing the porous bodies which comprises dissolving a nitrogen-containing polymer to form a gel, ionically crosslinking the gel, and... | 07/12/1994 |
| 5232955 | Process for producing a high strength artificial (cast) stone with high permeability and filter effect The invention relates to a process for producing a highstrength a furan stone with high permeability and filtering effect mainly for protecting deep-drilled wells yielding mineral oil, natural gas and water against getting choked by sand. A mixture compri... | 08/03/1993 |
| 5190983 | Hollow particles of crosslinked melamine resin having a uniform particles diameter and a process for producing the same A process for producing hollow particles of crosslinked melamine resin having a uniform particles diameter, said process comprising subjecting a water-soluble methyl-etherified-melamine resin precondensate to condensation reaction in the presence of a cur... | 03/02/1993 |
| 5190985 | Stable aminoplast cellular foams and the process for their manufacture Stable, emission-free, low-shrinkage, fireproof aminoplastic cellular foams are obtained by using an unsaturated, halogenated polyalcohol in the resin precondensate constituent and a dodecylbenzolsulphonic acid partially esterified preferably with a fatty... | 03/02/1993 |
| 5162487 | Melamine resin moldings having increased elasticity Moldings, in particular foams and fibers, based on melamine/formaldehyde condensation products, in which from 0.1 to 70 mol % of the melamine have been replaced by melamine substituted by from 1 to 3 hydroxyoxaalkyl groups of the formula --(CH2... | 11/10/1992 |
| 5118722 | Method of producing elastic foams having a base of polyurethane by microwave foaming A method of producing elastic foam having a base of polyurethane, in particular for use in the field of automobiles for sound damping. Allows production of foam parts directly in a desired shape in as few operations as possible. The foam is formed from a ... | 06/02/1992 |
| 5086085 | Melamine-formaldehyde aerogels Organic aerogels that are transparent and essentially colorless are prepa from the aqueous, sol-gel polymerization of melamine with formaldehyde. The melamine-formaldehyde (MF) aerogels have low densities, high surface areas, continuous porsity, ultrafin... | 02/04/1992 |
| 5084488 | Melamine resin moldings having increased elasticity Moldings, in particular foams and fibers, based on melamine/formaldehyde condensation products, in which from 0.1 to 70 mol% of the melamine have been replaced by melamine substituted by from 1 to 3 hydroxyoxaalkyl groups of the formula --(CH2 ... | 01/28/1992 |
| 5081163 | Melamine-formaldehyde aerogels Organic aerogels that are transparent and essentially colorless are prepa from the aqueous, sol-gel polymerization of melamine with formaldehyde. The melamine-formaldehyde (MF) aerogels have low densities, high surface areas, continuous porsity, ultrafin... | 01/14/1992 |
| 4945015 | Intumescent material An intumescent material comprises expandible graphite in a polymeric binder. The binder may be a flexible or elastomeric binder or a formaldehyde resin. A suitable flexible binder is a polymer selected from vinyl acetate polymers, styrene polymers, vinyl ... | 07/31/1990 |
