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| Number | Title | Issue Date |
| 8173716 | Open-cell foam modified with hydrophobines Open-cell foam based on a melamine-formaldehyde condensation product, a polyurethane or a polyimide, which has been modified with hydrophobins, a method of producing such foams, and the use thereof for absorbing organic liquids, as leakage and bleeding protection fo... | 05/08/2012 |
| 7342058 | Water absorbing hydrogels and methods of making and use thereof The invention is directed to a crumbly, water-absorbing, soil-like hydrogel. The hydrogel comprises finely comminuted mineral substances, such as igneous rock; water-soluble alkali-silicate; solid and liquid nutrient additives; and ballast, bound in a cross-linked p... | 03/11/2008 |
| 7163965 | Process for producing porous composite materials This invention relates to a process for producing porous and composite materials comprising steps of: freezing a complex containing at least one calcium salt selected from calcium carbonate, calcium phosphate, and hydroxyapatite and collagen, at least a part of whic... | 01/16/2007 |
| 7081159 | Soy protein based adhesive and particleboard An adhesive composition that can be used in particleboards and other composites is formed from an aqueous mixture of soy protein, zinc sulfate heptahydrate, calcium oxide, sodium benzoate, pine oil, wax emulsion and non-sulfonated kraft lignin. In a second embodimen... | 07/25/2006 |
| 7056957 | Formation of strong superporous hydrogels The present invention features a method for the formation of superporous hydrogels using an ion-equilibration technique. Anionic polysaccharides are included in the hydrogel reaction mixture and cations are introduced either during or after hydrogel formation. Prope... | 06/06/2006 |
| 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 |
| 6939937 | Mold inhibitor integrated within a matrix and method of making same A mold inhibitor integrated within a matrix and a method of making the same are disclosed. The matrix is preferably made of a processed sorghum grain, and preferably from hybrids of Milo. The grain is subjected to decortication and extrusion. Agents are added to the... | 09/06/2005 |
| 6774152 | Fiber imbedded polymeric sponge A polymeric sponge includes cellulose fibers imbedded therein. The sponge is made by mixing water and cellulose fibers with a water-catalyzing prepolymer for chemical reaction thereof. The mixture is cured and granulated to size. The cellulose fibers enhance both th... | 08/10/2004 |
| 6767488 | Fiber imbedded polymeric sponge production method A polymeric sponge includes cellulose fibers imbedded therein. The sponge is made by mixing water and cellulose fibers with a water-catalyzing prepolymer for chemical reaction thereof. The mixture is cured and granulated to size. The cellulose fibers enhance both th... | 07/27/2004 |
| 6660780 | Molecularly-imprinted material made by template-directed synthesis A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a ... | 12/09/2003 |
| 6582971 | Imprinting large molecular weight compounds in polymer composites A method for molecular imprinting polymers with large biomolecules. The imprinted polymer composite is made by the interfacial polymerization of a monomer in the presence of the print molecule and host polymer. Since polymerization occurs at the interface... | 06/24/2003 |
| 6583191 | Molecularly-imprinted material made by template-directed synthesis A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a ... | 06/24/2003 |
| 6509388 | Polyurethane foams for use in wound dressings The invention provides a method of forming a polyurethane foam suitable for use as a wound-contacting layer, said method comprising: mixing 1 part by weight of an isocyanate-capped prepolymer having from 0.5 to 4.8 meq. NCO groups/g with from 0.4 to 1.0 p... | 01/21/2003 |
| 6355699 | Process for manufacturing biomedical foams The present invention provides an improved lyophilization process for forming biocompatible foam structures. The process allows the foam structures to be tailored for specific end uses. The foams formed by this process are well suited to be used in medica... | 03/12/2002 |
| 6310110 | Molecularly-imprinted material made by template-directed synthesis A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a ... | 10/30/2001 |
| 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 |
| 6228898 | Biodegradable resin foam and method and apparatus for producing same Foam forming techniques are capable of permitting foaming of biodegradable resin to be positively and uniformly accomplished to provide a biodegradable resin foam with satisfactory quality. The biodegradable resin foam is made of biodegradable resin a mai... | 05/08/2001 |
| 5710190 | Soy protein-based thermoplastic composition for foamed articles The invention provides a biodegradable thermoplastic composition made of soy protein, a plasticizing agent, a foaming agent, and water, that can be molded into biodegradable articles that have a foamed structure and are water-resistant with a high level o... | 01/20/1998 |
| 5705537 | Phenolic foams having a low formaldehyde evolution Phenolic foam which can be used as insulation is a foamed phenol-formaldehyde resole resin which contains a peptide, a proteinaceous material, cysteine, glutamic acid, glycine, isoleucine, leucine, lysine, phenylalanine, serine, tryptophan, or mixtures th... | 01/06/1998 |
| 5684055 | Semi-continuous production of solid state polymeric foams The present invention provides a method for the semi-continuous production of microcellular foam articles. In a preferred embodiment, a roll of polymer sheet is provided with a gas channelling means interleaved between the layers of polymer. The roll is e... | 11/04/1997 |
| 5677355 | Continuous open-cell polymeric foams containing living cells A polymeric foam with continuous, open-cell pores containing living cells suitable for medical applications and methods for preparing these foams. The microporous foams are of controlled pore size that may be utilized in a variety of applications. In gene... | 10/14/1997 |
| 5602188 | Biodegradable resin foam and method and apparatus for producing same Foam forming techniques capable of permitting foaming of biodegradable resin to be positively and uniformly accomplished to provide a biodegradable resin foam with satisfactory quality. The biodegradable resin foam is made of biodegradable resin consistin... | 02/11/1997 |
| 5478865 | Method of recycling a discarded polyurethane foam article A method of recycling discarded PU foam articles comprises a first step of grinding the discarded PU foam articles into fine particles, which are then mixed with a predetermined amount of a powdered plastic to form a mixture. The mixture is heated to beco... | 12/26/1995 |
| 5324590 | Foamed adhesive for particleboard Particleboard is produced by coating the particles of wood furnish with an adhesive comprising a foamed mixture of 96-98 percent by weight urea formaldehyde and 2-4 percent by weight dried animal blood, the mixture being foamed to about 5-15 times the vol... | 06/28/1994 |
| 5225536 | Particles of gelatin and amino acid to be blended in resins Fine particles of gelatin and amino acid used in the present invention are particularly suitable for use in combination with resins. Gelatin particles used in the present invention have the number-average molecular weight of 8,500 or less, and amino acid parti... | 07/06/1993 |
| 4801621 | Foam-containing polyurethane(urea) compositions and process for the preparation thereof This invention relates to polyurethane(urea) compositions which contain foam and which are preferably cationically modified, contain non-abrasively bonded fillers and have a very high water absorbability (WAF). Production is effected by reacting isocyanat... | 01/31/1989 |
| 4775558 | Polyurethanes prepared or combined with another material and a process for their manufacture Polyurethanes which have been prepared or combined with another material are made by combining or applying a polyurethane-forming reaction mixture or polyurethane to another material such as a PVC foil or textile. The polyurethane-forming mixture or polyu... | 10/04/1988 |
| 4772495 | Trowelable ablative coating composition and method of use A trowelable ablative coating composition is disclosed. The composition comprises an epoxy resin, an amide curing agent, glass microspheres and ground cork. A method for protecting a substrate is also disclosed. The method comprises applying the trowelabl... | 09/20/1988 |
| 4544676 | Sound-insulating leather powder compositions The invention relates to new sound- and heat-insulating compositions, which comprise a finely dispersed leather powder of animal origin, a phenoplast resin or an aminoplast resin and optionally, together with the latter one, urea and/or a modified furane ... | 10/01/1985 |
| 4536430 | Process for the production of leather base material Leather waste is cut up into strips or portions and then subjected to working in order to break up the strips or portions into fine material and individual fibers, the fibers then being separated from the fine material. Alternatively, the strips or portio... | 08/20/1985 |
| 4495310 | Method of forming a urethane prepolymer and its use in consolidating aggregate material A method of forming a urethane prepolymer comprising the steps of gradually adding an isocyanate compound to a hydrophilic polyether or polyester compound without substantial added mixing whereby a relatively dense isocyanate layer and a polyether or poly... | 01/22/1985 |
| 4456707 | Process for the production of fiber-containing polyurethane moldings having inhomogeneously colored surfaces Polyurethane moldings having an inhomogeneously colored surface with color contrasts in fiber-like distribution are made by incorporating colored fibers of a specified type in a polyurethane forming reactionmixture. The colored fibers must have a staple l... | 06/26/1984 |
| 4454254 | Aminoplast resins, dispersions, and low flammability cellular and non-cellular polyurethane products prepared therefrom Aminoplast resin is prepared by reacting urea or melamine with formaldehyde in the presence of a stabilizer compound. Dispersions of the resin in a polyol reacted with a polyisocyanate produce polyurethane products having low flammability properties.... | 06/12/1984 |
| 4329436 | Method of forming a urethane prepolymer and its use in consolidating aggregate material A method of forming a hydrophilic urethane prepolymer useful in consolidating aggregate material comprises the steps of adding an isocyanate compound to a hydrophilic polyether or polyester compound which has been heated to such a temperature that the tem... | 05/11/1982 |
| 4327195 | Polyurethane containing polypeptides A polyurethane is comprised of the reaction product of a polyisocyanate and a polyreactive hydrogen compound having a polypeptide admixed therewith.... | 04/27/1982 |
| 4320208 | Process for the production of polyurethane plastics in which polyisocyanates are reacted with reactive organic fillers comprising biomasses This invention relates to a process for the production of optionally foamed polyurethane plastics, particularly shaped articles, using certain denatured biomasses as reactive fillers. The fillers in question comprise biomasses based on microorganisms and ... | 03/16/1982 |
| 4246360 | Fire retardant, non-dripping flexible polyurethane foam A flexible polyurethane foam is provided which is fire retardant and non-dripping upon exposure to flame. The flexible polyurethane foam is prepared by the reaction of a polyol, an isocyanate and a protein.... | 01/20/1981 |
| 4221695 | Adsorbent for artificial organs An absorbant for use in artificial organs which is obtained by mixing and dissolving pitch with an aromatic compound and a polymer or copolymer of a chain hydrocarbon, dispersing the resultant mixture in water giving rise to beads and subjecting these bea... | 09/09/1980 |
| 4185146 | Polyurethane binder composition containing a rubber extender oil and a finely divided solid soybean derivative A composition suitable for use as a binder for shredded, flexible polyurethane foams to make articles such as carpet or rug underlay comprises a polyalkylene ether polyol having from 2-4 hydroxyl groups, a minor amount by weight of a rubber extender oil, ... | 01/22/1980 |
| 4156759 | Polyurethane foams containing stabilized amylaceous materials Polyurethane foams are prepared by reacting an active hydrogen-containing organic compound with an organic polyisocyanate in the presence of a blowing agent and an amylaceous material which has been stabilized (a) by treating with a stabilizing agent cont... | 05/29/1979 |
