| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Heat-curing reactive powders based on polyurethanes | US621200 | 1990-11-30 | US5077339A | 1991-12-31 | Gerhard Grogler; Heinrich Hess; Richard Kopp; Werner Rasshofer |
| The present invention relates to the preparation of powdered heat-curable reaction mixtures in which melt suspension of (a) solid polyisocyanates having melting points above about 60.degree. C., (b) molten high molecular weight isocyanate-reactive compounds having molecular weights of from 400 to 10,000 that have melting or softening points of 50.degree. C. to 150.degree. C., and (c) optionally, solid or liquid low molecular weight chain-extending or crosslinking compounds having molecular weights of from 62 to 399, are added to an inert solvent containing an emulsifier, thereby forming powdered heat-curable reaction mixtures in which components (a), (b), and (c) remain in uncrossedlinked form. The invention further relates to the use of the heat-curing reaction mixtures for the preparation of high-quality polyurethane polyurea plastics. | ||||||
| 62 | Heterogeneous systems of polyol/diphenyl methane uret dione diisocyanates and a process for their production | US404010 | 1982-08-02 | US4442280A | 1984-04-10 | Gerhard Grogler; Wilhelm Kallert |
| Storage stable heterogeneous systems which may be processed at low temperatures to form polyurethanes are made by mixing a specific quantity of a high molecular weight polyhydroxyl compound with a specified quantity of a 4,4'-diphenyl methane uret dione diisocyanate corresponding to a specified formula or a corresponding modified diisocyanate. A lead and/or tin catalyst is also included. | ||||||
| 63 | Process for the production of organic alkali metal silicate compounds | US332672 | 1981-12-21 | US4361696A | 1982-11-30 | David H Blount |
| An oxidated silicon compound will react with a substituted organic compound in the presence of an alkali compound to produce organic alkali metal silicate products which may be used as molding powders, as adhesives, as coating agents and be reacted with polyisocyanates to produce insulating foams. | ||||||
| 64 | Process for the production of alkali metal silicate-organic plastics | US300302 | 1981-08-10 | US4350775A | 1982-09-21 | David H. Blount |
| Polymerable organic compounds are emulsified with aqueous alkali metal silicate solutions then polymerized with a catalyst such as a peroxide type catalyst thereby producing an alkali metal silicate organic plastic which may be used as an adhesive or as molding powder. | ||||||
| 65 | Process for the production of alkali metal silicate-organic plastics | US300303 | 1981-08-10 | US4332926A | 1982-06-01 | David H. Blount |
| Polymerable organic compounds are emulsified with aqueous alkali metal silicate solutions then polymerized with a catalyst such as a peroxide type catalyst thereby producing an alkali metal silicate organic plastic which may be used as an adhesive or as molding powder. | ||||||
| 66 | Process for the production of moldings based on polyurethanes | US163678 | 1980-06-27 | US4311815A | 1982-01-19 | Heinrich Heine |
| The instant invention is directed to a process for the production of moldings based on polyurethanes comprising reacting organic polyhydroxyl compounds with organic polyisocyanates in quantitative ratios corresponding to an NCO/OH equivalent ratio of from 0.8:1 to 1.2:1, wherein said polyhydroxyl compounds are selected from the group consisting of:(a) alkoxylation products of ammonia containing 3 hydroxyl groups and having a molecular weight of at least 149 and a hydroxyl group content of at least 12% by weight,(b) alkoxylation products of aromatic polyamines containing at least 4 hydroxyl groups and having a molecular weight of at least 284 and a hydroxyl group content of at least 12% by weight,(c) phenol/formaldehyde condensates containing at least 3 phenolic hydroxyl groups and having a phenolic hydroxyl group content of at least 12% by weight,(d) mixtures of (a), (b), and (c), and(e) mixtures containing at least 25% by weight of at least one of the polyhydroxyl compounds mentioned in (a), (b), and (c) with other polyhydroxyl compounds optionally containing ether or ester groups and having a molecular weight in the range of from 62 to 3000, said mixture having a mean OH functionality of at least 2.7 and a hydroxyl group content of at least 12% by weight, wherein said reaction is conducted at a temperature from 0.degree. to 100.degree. C. to form a solid, powderable and fusible reaction product which contains free isocyanate and hydroxyl groups, but which will not react further in said temperature range. | ||||||
| 67 | Process for the Production of alkall metal silicate-organic plastics | US233151 | 1981-02-10 | US4303768A | 1981-12-01 | David H. Blount |
| Polymerable organic compounds are emulsified with aqueous alkali metal silicate solutions then polymerized with a catalyst such as a peroxide type catalyst thereby producing an alkali metal silicate organic plastic which may be used as an adhesive or as molding powder. | ||||||
| 68 | Thermoplastic polyurethanes prepared from 4,4'-methylenebis (phenyl isocyanate) | US49246474 | 1974-07-29 | US3901852A | 1975-08-26 | SHAH TILAK M |
| Thermoplastic elastomers having excellent physical properties which are retained at low temperatures are prepared from 4,4''methylenebis(phenyl isocyanate), polyethylene glycol (M.W. 600 - 3000) and an extender which is an aliphatic straight chain diol from 3 to 6 carbon atoms or a hydroxyalkylated aromatic compound of the formula
WHERE A represents HOCH2-, HOCH2CH20-, and HOCH2CH2OCH2-. The proportion in which the reactants are employed is critical and must satisfy each of the following equations: D R A W I N G |
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| 69 | Thermoset resins with hydroxy acrylate, methyl methacrylate and blocked isocyanate | US3676405D | 1970-06-05 | US3676405A | 1972-07-11 | LABANA SANTOKH S |
| Novel thermosetting resin powders which can be molded to form products characterized in tensile measurement, by high elongation-to-break, high tensile strength and modulus and a high glass transition temperature are prepared from a mixture of (a) a prepolymer formed by reacting (1) hydroxy ester of acrylic or methacrylic acid and a C2 - C3 diol with (2) methyl methacrylate and (b) a blocked di- or triisocyanate wherein the isocyanate groups are directly attached to an aromatic ring and deblock at temperatures in the range of about 120* to 160* C.
|
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| 70 | Thermoplastic polycaprolactone polyurethanes | US3523101D | 1969-08-14 | US3523101A | 1970-08-04 | REUTER FRANZ GOTTFRIED |
| 71 | Process for preparing polyureapolyurethane molding powders | US41615664 | 1964-12-04 | US3402149A | 1968-09-17 | WALTERS FRED L |
| 72 | BONDED PERMANENT MAGNETS PRODUCED BY ADDITIVE MANUFACTURING | US15887490 | 2018-02-02 | US20180215854A1 | 2018-08-02 | M. Parans PARANTHAMAN; Orlando RIOS; William G. CARTER; David FENN; Cajetan Ikenna NLEBEDIM |
| A method for producing a bonded permanent magnet by additive manufacturing, the method comprising: (i) incorporating components of a reactive precursor material into an additive manufacturing device, the reactive precursor material comprising an amine component, an isocyanate component, and particles having a permanent magnetic composition; and (ii) mixing and extruding the crosslinkable reactive precursor material through a nozzle of the additive manufacturing device and depositing the extrudate onto a substrate under conditions where the extrudate is permitted to cure, to produce a bonded permanent magnet of desired shape. The resulting bonded permanent magnet and articles made thereof are also described. | ||||||
| 73 | Thermoplastic polyurethane copolymer molding compositions | US12672148 | 2008-08-08 | US09796807B2 | 2017-10-24 | William M. Humphrey; Paul Drago; Terry L. Anderson; James R. Charron |
| Compositions for forming molded articles, particularly, shells for automotive applications are made up of melt blends of an aliphatic thermoplastic urethane elastomer and one or more polyolefin-based modifiers. These compositions may be blended to form a powder, pellets, microspheres or minibeads which may then be cast to form air bag door and instrument panel cover skins which may meet automotive deployment and weathering requirements. | ||||||
| 74 | Thermoplastic polyurethane copolymer molding compositions | US12672174 | 2008-08-08 | US09708438B2 | 2017-07-18 | William M. Humphrey; Paul Drago; Jeffrey S. Armour; Jim E. Ingram; James R. Charron |
| Compositions for forming molded articles, particularly, shells for automotive applications are made up of melt blends of aliphatic thermoplastic urethane elastomer and an olefin-containing block copolymer crosslinked to a gel content of from 5 to 95%. These compositions may be blended to form a powder, pellets, microspheres or minibeads which may then be cast to form air bag door and instrument panel cover skins which may meet automotive deployment and weathering requirements. | ||||||
| 75 | VINYL CHLORIDE RESIN COMPOSITION, VINYL CHLORIDE RESIN MOLDED PRODUCT, AND LAMINATE | US15119538 | 2015-03-10 | US20170009055A1 | 2017-01-12 | Takanori FUJIWARA |
| Provided is a vinyl chloride resin composition that can provide a molded product having superior flexibility at low temperatures. The vinyl chloride resin composition includes (a) a vinyl chloride resin and (b) a dodecanedioic acid diester. Moreover, (a) the vinyl chloride resin includes (x) a base vinyl chloride resin in an amount of from 70 mass % to 100 mass % and (y) vinyl chloride resin fine particles in an amount of from 0 mass % to 30 mass %. | ||||||
| 76 | POWDERY COMPOSITION COMPRISING THERMOPLASTIC POLYURETHANE AND USE THEREOF | US14557616 | 2014-12-02 | US20150152214A1 | 2015-06-04 | Timur Uenlue; Wilfried Leirer |
| The invention relates to a powdery composition for use in the layer by layer manufacturing of three-dimensional molded bodies. The composition comprises at least one powder made of an aliphatic thermoplastic polyurethane (TPU) and is characterized in that the TPU powder has a melting temperature of less than 135° C. and a melting viscosity at 150° C. of at most 800 Pa·s. | ||||||
| 77 | Urethane resin particles | US13884771 | 2011-11-09 | US09023941B2 | 2015-05-05 | Shinji Watanabe; Yasuhiro Tsudo; Masaki Inaba; Jun Takeuchi; Yuko Matsumoto |
| Provided is a slush molding material which exhibits excellent low-temperature meltability and heat resistance and which can yield a molded product having excellent tensile strength and elongation. The present invention is urethane resin particles (D1) comprising a urethane or urethane-urea resin (U1) that has residues (j) bonded thereto covalently, said residues (j) being residues derived from an at least trivalent aromatic polycarboxylic acid by removing hydroxyl groups, or urethane resin particles (D2) comprising a urethane resin composition (S2) which comprises both a urethane or urethane-urea resin (U2) and a compound (E) that has a residue (j) derived from an at least trivalent aromatic polycarboxylic acid by removing hydroxyl groups, said compound (E) being represented by general formula (1), wherein the residues (j) are linked respectively to urethane or urea groups (u) of the resin (U1) or (U2) by hydrogen bonds. | ||||||
| 78 | POWDERED POLYURETHANE UREA RESIN COMPOSITION FOR SLUSH MOLDING AND MANUFACTURING PROCESS THEREFOR | US14236495 | 2012-07-30 | US20140179864A1 | 2014-06-26 | Koichi Saito; Ko Kawasaki; Kakuhiro Kawaguchi; Yasuhiro Tsudo |
| Provided are: a powdered material for slush molding; and a manufacturing process therefor. The powdered material is less odorous, exhibits excellent powder fluidity, and does not suffer from troubles resulting from the sliding-down or agglomeration of a pigment even when the resin particles have been pigmented on the surfaces thereof. Thus, the powdered material ensures high productivity. The powdered material is a powdered polyurethane urea resin composition which comprises (D) a polyurethane urea resin that has a total content of bimolecular condensate of acetone, bimolecular condensate of methyl ethyl ketone, and bimolecular condensate of methyl isobutyl ketone of 1,000 ppm or less and (N) an additive, wherein the polyurethane urea resin (D) takes the form of thermoplastic polyurethane urea resin particles (P) that have a volume-mean particle diameter of 20 to 500 μm and that have protrusions and recesses on the surfaces. The powdered polyurethane urea resin composition is manufactured by a manufacturing process which includes a step of mixing (A) an isocyanato-terminated urethane prepolymer with (B) an alicyclic diamine and/or an aliphatic diamine in an aqueous medium by stirring to form the resin particles (P). | ||||||
| 79 | Polyglycolic acid resin particle composition and process for production thereof | US12084051 | 2006-10-26 | US08304500B2 | 2012-11-06 | Hiroyuki Sato; Fuminori Kobayashi; Fumio Akutsu; Katsushi Momose |
| A particulate polyglycolic acid resin composition, comprising: a blend of a first particulate polyglycolic acid resin and a second particulate polyglycolic acid resin each having a moisture content of at most 110 ppm and providing a ratio of melt-viscosity (as measured at 270° C. and a shear rate of 121 sec−1; the same as hereinafter) therebetween of above 1 and at most 10. After the polymerization, the first and second particulate polyglycolic acid resins can cause change in properties before the forming (e.g., during storage); or during the forming process. However, by adequately determining the blending ratio between the resins while taking the melt-viscosities thereof into account, it becomes possible to provide a particulate polyglycolic acid resin composition showing a stable melt-formability and suitable as a starting material for various forming processes. | ||||||
| 80 | THERMOPLASTIC ALIPHATIC URETHANE/UREA MOLDING COMPOSITIONS | US12733059 | 2008-08-08 | US20110105673A1 | 2011-05-05 | William M. Humphrey; Paul Drago; Terry L. Anderson |
| Compositions for forming molded articles, particularly, shells for automotive applications are made up of an aliphatic thermoplastic urethane/urea elastomer and, optionally, one or more copolymers, such as an olefin-containing or styrene containing copolymer. These compositions may be used to form a powder, pellets, microspheres or minibeads which may then be cast to form air bag door and instrument panel cover skins which may meet automotive deployment and weathering requirements. | ||||||
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