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| Number | Title | Issue Date |
| 7413697 | Pre-molding heat treatment of dynamic vulcanizates of fluorocarbon elastomers Methods for making processable rubber compositions containing fluorocarbon elastomers cured by polyol or phenol curative agents include an optional heat treating step before thermoplastic processing. In one aspect, a dynamic vulcanizate of a fluorocarbon elastomer c... | 08/19/2008 |
| 6558595 | Method for producing virtually finished moulded bodies from moulding materials The present invention relates to a process for producing close-to-final-shape moldings from pressing compositions, in which reinforcing fibers, fiber bundles, fiber fabrics, fiber mats and/or random fiber agglomerates based on metal, glass, carbon, nitrog... | 05/06/2003 |
| 6500371 | Continuous method for producing amino- and/or phenoplasts The invention relates to a continuous process for preparing aminoplastics and/or phenolics, in which a precondensate solution is prepared in a first extruder (14), the precondensate solution is continuously fed, with addition of additives, to a second ext... | 12/31/2002 |
| 6071985 | Catalytic curing agent for resins and method for making the same Dimethylpropylamine is provided. This new amine surprisingly has a significantly less offensive odor and is considerably less prone to be impregnated in or coat the skin and clothing than are other amines which are utilized to catalyze phenol formaldehyde... | 06/06/2000 |
| 5866057 | Process for the manufacture of particle-board and fiberboard A process is described for the manufacture of tannin-bonded particle- and fiberboard wherein the binding of wood chips and fibers is accomplished by obtaining the formaldehyde necessary for the cross-linking of tannin by the hydrolytic decomposition of th... | 02/02/1999 |
| 5684114 | Cross-catalyzed phenol-resorcinol adhesive A two-part adhesive is provided wherein the first part comprises a stable aqueous alkaline monohydroxylic phenolic resole resin solution containing a methylene donor such as oxazolidine or a methylolurea and the second part comprises a stable resorcinolic... | 11/04/1997 |
| 5679305 | Process for injection molding of phenolic resin molding material The present invention provides a process for injection molding a phenolic resin molding material which includes injection molding a phenolic resin molding material having a melt viscosity of 104 Pa.cndot.s or lower, preferably 103 Pa... | 10/21/1997 |
| 5628952 | Precisely shaped particles and method of making the same Precisely shaped composites and methods for making these composites are disclosed. The method of this invention comprises the steps of: (a) providing a production tool comprising a plurality of cavities; (b) providing a dispensing means capable of introducing a bin... | 05/13/1997 |
| 5385754 | Treatment of lignocellulosic materials This invention relates to a process for modifying lignocellulosic materials by a chemical treatment comprising treating the material sequentially or simultaneously with phthalic anhydride and a thermosetting resin at elevated temperature, and finally heat... | 01/31/1995 |
| 5368803 | Method of making resin impregnated fibrous panels A fibrous resinated panel is provided which when used in a closed environment releases relatively minor amounts of trimethylamines, aldehydes and phenolic compounds into the closed environment. The panel is formed by compressing a fibrous mat impregnated ... | 11/29/1994 |
| 5322648 | Process for forming shaped collagen devices A method is provided for fabricating a shaped article from aqueous collagen-containing materials. A dispersion containing collagen and a surfactant is cast upon a mold of thermoplastic material and dried by a ramped drying profile under controlled conditi... | 06/21/1994 |
| 5215695 | Process for reclaiming the residuals of the manufacture of high pressure laminates A process for reclaiming residuals produced from the manufacture of decorative high pressure laminates (HPLs), and composite materials obtained by the process. Such residuals which include cellulose impregnated with thermosetting resins which are partiall... | 06/01/1993 |
| 5173221 | Method of molding and assembling structural Mobile structural unit molding and assembling apparatus includes a support portion, a raw material supplying portion, a molding portion, a unit transferring portion and a control portion. The support portion includes at least one base section with a wheel... | 12/22/1992 |
| 5158732 | Method of tempering workpieces of duroplastic plastic Method of tempering workpieces of duroplastic plastic, in particular a piston for a motor vheicle brake, provides that the workpiece is heated after the pressing or molding according to a predetermined time-dependent temperature rise for several hours and... | 10/27/1992 |
| 4999078 | Reducing blocking and increasing flow of plasticized polyvinyl butyral sheet A process for increasing both resistance to blocking and flow during laminating of plasticized polyvinyl butyral sheet which comprises incorporating into the formulation of the sheet a block-reducing and flow-promoting amount, preferably up to about 10 mo... | 03/12/1991 |
| 4917835 | Process for the production of porous shaped articles Porous shaped phenolic resin articles are made by partially curing a phenolic resin to a solid, comminuting the resin, forming into a predetermined shape, and sintering. Porous shaped carbon articles are made by carbonizing the sintered material.... | 04/17/1990 |
| 4902464 | Cross-linked polyvinyl butyral Polyvinyl butyral (PVB) resin lightly cross-linked through stable intermolecular linkages developed, for example, through use of a dialdehyde or trialdehyde, to selectively increase PVB molecular weight and the modulus of a plasticized sheet formed theref... | 02/20/1990 |
| 4894292 | Thermosetting phenolformaldehyde sheet molding compositions and method of preparation A flexible fibrous reinforced phenol-formaldehyde sheet molding compound capable of rapid curing to an infusible state.... | 01/16/1990 |
| 4879085 | Method of manufacturing polyacetal resin film A polyacetal resin is manufactured by an improvement whereby a polyacetal resin having a melt index (MI) of 0.3~5.0 is formed into film by an inflation process within an extrusion resin temperature range according to the following equation: ##EQU1##... | 11/07/1989 |
| 4785073 | Melamine-phenol-formaldehyde resole modified by glycols moulding composition A series of melamine-phenol-formaldehyde resoles for pressure-free to low pressure, low/medium temperture conversion into moulded product. The molar ratio of melamine:phenol is the range 1:4.7 to 1:0.29; for each mole of melamine there are 1.5 to 3 moles ... | 11/15/1988 |
| 4744934 | Process for devolatilizing molten oxymethylene polymer A process is provided for reducing black speck formation which occurs during melt processing of oxymethylene polymer compositions containing polyamide stabilizers having a melting or softening point below the melting point of the oxymethylene polymer and ... | 05/17/1988 |
| 4743409 | Process for preparing a substrate for optical recording media A process for preparing a substrate for optical recording media which comprises injection-molding a polyvinylacetal resin resulting from acetalization of polyvinylalcohol to a degree of at least 60 mole % with at least one acetalizing agent selected from ... | 05/10/1988 |
| 4692290 | Process for devolatilizing molten oxymethylene polymer A process is provided for removing volatile materials from a molten oxymethylene polymer, according to which the molten polymer is passed through a rotating disk polymer processor having at least three stages; a first devolatilization stage, then a stabil... | 09/08/1987 |
| 4654179 | Polyvinyl butyral sheet roughness control Extruded polyvinyl butyral (PVB) sheet roughness is controlled by use of PVB resin lightly cross-linked through stable intermolecular linkages.... | 03/31/1987 |
| 4626569 | Process for producing a molded product and the molded product produced thereby The process and product derived therefrom use the moldable composition derived from intimate co-reacted mixtures of powder or otherwise blendable form of 20-80% by weight of a phenolic-furfuraldehyde Novolac resin and of 20-80% by weight of a phenolic-ald... | 12/02/1986 |
| 4617165 | Molded brake pad A composition of material for use as a friction material in a brake and its method of manufacture. Liquid double salts of dibasic and monobasic (ammonium-potassium hydrogen) phosphoric acid (DSP) is added to a dry mixture of reinforcing fiber, friction mo... | 10/14/1986 |
| 4579892 | NH4 SSL-PF thermosetting resin and method of binding lignocellulosic material employing same A low cost method of binding lignocellulosic materials utilizing a novel ammonium based spent sulphite liquor, with phenol and formaldehyde or phenol-formaldehyde thermosetting resin as the binder is disclosed. Phenol-formaldehyde which normally reacts wi... | 04/01/1986 |
| 4525573 | Thermoset polymers and prepolymers obtained by polycondensation of alkyl pyridine with hydroxyl aromatic monoaldehydes The object of the invention are new thermoset polymers and prepolymers, a process for their preparation, and their uses. The new thermoset prepolymers consist, at least in part, of the polycondensation products of one or more pyridine derivatives containi... | 06/25/1985 |
| 4521477 | Multilayer fibre mat and process for its production A specially constructed multilayer fibre mat is made up of two cover layers of fibres with a high-quality thermosetting plastics impregnation and a central layer of if necessary short-fibre wood products with more particularly cheap thermoplastic bonding ... | 06/04/1985 |
| 4508772 | Pressed composite assembly and method The present invention relates to a method of forming an extended elongate pressed composite assembly from a plurality of strands by subjecting the strands to heat and pressure. The improvement of the present invention comprises methods for compressing a p... | 04/02/1985 |
| 4468508 | Glycidyl ether of novolak type substituted phenolic resin, process for producing the same, and encapsulating compound composed mainly of the same A new glycidyl ether of novolak type substituted phenolic resin composed of specific repeating units and new terminal groups contained therein. This resin is superior as an encapsulating compound in the electric and electronic industries.... | 08/28/1984 |
| 4410481 | Insulating plate and process for the preparation thereof A thermal and acoustic insulating plate comprising an aminoplastic resin and a fiber reinforcement embedded therein in the form of a non-woven body of glass fibers extending uniformly throughout the entire volume of the plate. In preparing the plate a non... | 10/18/1983 |
| 4395521 | Process for curing thermoset resins using phenyl esters of carboxylic acids as latent catalysts Latent catalysts comprising the phenyl esters of certain carboxylic acids are disclosed for use in the cure thermosetting resins curable by an acid catalyst.... | 07/26/1983 |
| 4395520 | Process for curing thermosetting resins using sulfur dioxide containing compounds as latent catalysts Latent catalysts comprising certain sulfur dioxide containing compounds such as bubadiene sulfone are used in the cure of thermosetting resins which are curable by an acid catalyst.... | 07/26/1983 |
| 4359438 | Process for molding corrosion resistant fuel cell collecting plates Durable bipolar fuel cell collecting plates are molded from resin bonded graphite and furfural wetting agent.... | 11/16/1982 |
| 4320080 | Method to manufacture soft magnetic pressed bodies To permit use of less expensive iron powder material and manufacture of more complex shapes, a mixture of iron powder, of an approximate grain size of between 30 to 450 μm, and containing preferably 5 to 50% of carbonyl iron powder or from 5 to 50%, by w... | 03/16/1982 |
| 4268657 | Friction element containing phenol-formaldehyde-alkylphenol binder Improved friction elements suited for use for example in an automotive or similar brake or in a clutch are provided by employing therein as a binder the reaction product of phenol, formaldehyde, and monoalkylphenol having from 4 to about 20 carbon atoms i... | 05/19/1981 |
| 4267141 | Phenolic resins with improved low temperature processing stability Phenolic novolak resins are described which are structurally characterized as having from about 55% to about 90% of the available theoretical paraphenyl linkages in the resin chain bridged to a phenyl group. The resin compositions of this invention provid... | 05/12/1981 |
| 4264557 | Phenolic resins with improved low temperature processing stability Phenolic novolak resins are described which provide extended resin stability at relatively low temperatures without significant adverse affect on the cure speed at the molding temperature. The resins are especially suited for use in runnerless injection o... | 04/28/1981 |
| 4119611 | Process for the production of linear condensates of phenol and formaldehyde A two-stage process for making a linear condensate of phenol and formaldehyde which can be extruded as a film or thread. In the first stage phenol and formaldehyde are reacted at about 90° C to produce a clear low-viscosity phenol-methylol liquid, the pH... | 10/10/1978 |
