| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Polyarylimidazolidines with phenolic hydroxyl end groups | US740335 | 1991-08-05 | US5239039A | 1993-08-24 | Richard A. Markle |
| Polyarylimidazolidines with a degree of polymerization of about one to twenty and having phenolic hydroxyl end groups and a novel three-step process for their preparation are described. In the first step of the process, an excess of hydrogen cyanide is reactive with an aryl diisocyanate. The excess hydrogen cyanide promotes polymerization and avoids the reaction of the imino hydrogen on the heterocyclic range with the diisocyanate to form cross linkage and associated gel formation. In the second step, a stoichiometric amount of diisocyanate is added to react with the excess hydrogen cyanide and one hydroxyl of a phenolic dihydroxyl end capping group. In the final third step, the dihydroxyl end capping group is added and the remaining diisocyanate reacts with one of the two phenolic hydroxyls on the end capping group. | ||||||
| 122 | Shape memory polyurethane elastomer molded article | US413771 | 1989-09-28 | US5145935A | 1992-09-08 | Shunichi Hayashi |
| A shape memory polyurethane elastomer molded article formed from a polyurethane elastomer which has a degree of crystallinity of 3.about.50 wt %, contains approximately equal amounts of [NCO] groups and [OH] groups at the terminals of the polymer, and is polymerized by the prepolymer method from a difunctional diisocyanate, a difunctional polyol, and a difunctional chain extender containing active hydrogen groups, which are formulated in a molar ratio of diisocyanate: polyol: chain extender=2.00.about.1.10: 1.00: 1.00.about.0.10, preferably 1.80.about.1.20: 1.00: 0.80.about.0.20. It is capable of melt molding such as injection molding, extrusion molding, and blow molding, and can be manufactured freely without being restricted by the shape of the molded article. | ||||||
| 123 | Shape memory film | US420565 | 1989-10-12 | US5139832A | 1992-08-18 | Shunichi Hayashi; Hiroshi Fujimura; Makoto Shimizu |
| A shape memory film formed from a shape memory transparent polymer, said shape memory film being capable of remembering a basic shape such as plane configuration and dead folds, taking on a second shape when the basic shape is modified (by changing the plane configuration and adding dead folds, twists, three-dimensional configurations, etc.) at a temperature higher than the glass transition point of the polymer and lower than the molding temperature of the polymer, and having the second shape set when cooled to a temperature lower than the glass transition point while being kept in the second shape; and a method of using said shape memory film by setting the second shape and subsequently heating the film to a temperature higher than the glass transition point, thereby causing the film to restore its basic shape. | ||||||
| 124 | Thermally-reversible isocyanate polymers | US651020 | 1991-02-04 | US5097010A | 1992-03-17 | Richard A. Markle; Phyllis L. Brusky; George E. Cremeans |
| Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using polyimide, aromatic polycarbonate, aromatic polyester, polyphenylene sulfide, and poly(parabanic acid) oligomers. Low-temperature flexibility and toughness are imparted to the polymers by using prepolymers such as polycaprolactone diols, polytetramethylene ether glycols and polyaliphatic carbon diols. Ionic bonding and liquid-crystal functionality may also be incorporated into the compositions. The compositions are useful as hot-melt adhesives, coatings, and moldings and in injection reaction molding applications and composite and laminate fabrication. | ||||||
| 125 | Shape memory polymer foam | US413770 | 1989-09-28 | US5049591A | 1991-09-17 | Shunichi Hayashi; Hiroshi Fujimura |
| A shape memory polymer foam which takes on a deformed shape and an as-molded shaped, said deformed shape being produced when the polymer foam is compressed at a temperature higher than the glass transition point (Tg) of the polymer and then kept compressed at a temperature lower than the Tg until compression sets, said as-molded shape being produced when the compressed polymer foam is heated again to a temperature higher than the Tg until it recovers its original shape. | ||||||
| 126 | Rapidly setting, moisture-curable hot melt adhesives and their use | US384406 | 1989-07-24 | US5019638A | 1991-05-28 | Hartmut Muller; Klaus Bruning |
| Hot melt adhesives with particularly high setting rates are obtained from the reaction products of polyisocyanates and hybroxypolyesters, the hydroxypolyester preferably being strictly aliphatic and containing at least 12 methylene groups in the polyester unit of diol and dicarboxylic acid. | ||||||
| 127 | Process for preparing hydroxyl polyester for use in a powder coating and a powder coating composition thereof | US291613 | 1988-12-29 | US4975513A | 1990-12-04 | Bong J. Kim; Won S. Kim |
| A crystalline polyester resin derived from the reaction between a prepolymer and trimellitic anhydride in an amount of less than 10 wt % of the prepolymer where prepolymer as an intermediate product formed from the reaction between an alcohol mixture containing at least 40 mole % ethylene glycol and at least 30 mol % neopentyl glycol, and an acid mixture containing terephthalic acid or dimethyl terephthalate of at least 40 mole % and a linear dicarboxylic acid, or between an alcohol mixture containing 100 wt % terephthalic acid or dimethyl terephthalate. The crystalline polyester resin is very suitable for use in powder coating compositions and has a hyodroxyl number of 20 to 100, an average molecular weight of 1000 to 3500 and a melt viscosity at 160.degree. C. of 500 to 4000 cps as well as the characteristics of dense, regular, and repetitive structure. | ||||||
| 128 | Controlled release compositions (II) | US188674 | 1988-04-29 | US4931288A | 1990-06-05 | Mostyn Embrey; Neil B. Graham |
| A controlled release composition comprising a prostaglandin and a polymeric carrier therefor comprising residues having a ratio of number average molecular weight to functionality greater than 1,000 which comprise polyethylene oxide and are cross-linked through urethane groups. | ||||||
| 129 | Formable orthopedic casts and splints | US528695 | 1983-09-01 | US4473671A | 1984-09-25 | Richard Green |
| A cast material comprising a filled crystalline polyurethane is disclosed. The filler is present in an amount of from 30% to 60% by weight composition. The filler comprises from 20% to 60% by weight of calcium metasilicate fibers and from 40.degree. C. to 85.degree. C. by weight of silica. | ||||||
| 130 | Crystalline, grindable polyurethane prepolymers | US357914 | 1982-03-15 | US4403084A | 1983-09-06 | Charles W. McGary, Jr.; Delmer R. Rhodes; Vincent J. Pascarella |
| A crystalline grindable end-blocked prepolymer useful in providing a polyurethane elastomer having a 100% modulus less than approximately 250 psi, tensile of 3500 to 6500 psi, and less than 30% initial tensile set, said prepolymer being the product of reacting an organic polyisocyanate, a long chain crystalline diol having an average molecular weight of approximately 500 to 5000, a polyhydroxy cross-linking agent, and an end-blocking agent. | ||||||
| 131 | Plastifiers, method of preparation and PVC compositions containing same | US132484 | 1980-03-21 | US4273890A | 1981-06-16 | John W. Hirzy |
| Block copolyesters and block copolyesterurethanes are presented which are useful as plastifiers for PVC. The plastifiers, depending on process variations, contain ordered or random blocks of amorphous and semi-crystalline structure and are characterized as being highly compatible and substantially non-fugitive when blended with PVC. | ||||||
| 132 | Polyurethane elastic molding material | US590649 | 1975-06-26 | US4111913A | 1978-09-05 | Gunter Schuhmacher; Horst Muhlfeld |
| Elastic, temporarily adhesive polyurethanes are produced by reaction of a polyol having a molecular weight in excess of about 500, a diisocyanate and a chain lengthener, the diisocyanate being present in about 0.4 to 1.4 times the weight of the polyol and in about 3.5 to 12.5 times the molar amount of the polyol, the chain lengthener having active hydrogen atoms and being present in about 3 to 12 times the molar amount of the polyol, the chain lengthener having a molecular weight of less than about 300, more than about 50 mole % of each of the polyol and diisocyanate units and up to about 50 mole % of the chain lengthener units comprising linear aliphatic C.sub.6 units. | ||||||
| 133 | Process for preparing heat-resistant polyurethane elastomers having no secondary softening range | US730945 | 1976-10-08 | US4098773A | 1978-07-04 | Karl Heinz Illers; Herbert Stutz |
| The invention concerns a process for making heat-resistant polyurethane elastomers from substantially linear polyhydroxyl compounds of high molecular weight, polyisocyanates, chain extenders, and, if desired, catalysts and additives, in which the polyhydroxyl compound is reacted with diisocyanate material in amounts to give an OH:NCO ratio of 1:1.10 to 1:2 and produce an adduct, and the adduct is subsequently reacted with symmetrical aromatic diisocyanate and a diol as chain extender (preferably a linear diol containing 2,4 or 6 carbon atoms) to obtain a crystalline or crystallizable diurethane or polyurethane of good heat resistance. | ||||||
| 134 | Multiphase block and graft copolymers comprising a hydrophilic continuous phase and hydrophobic domains | US553613 | 1975-02-27 | US4057598A | 1977-11-08 | Robert D. Lundberg; Neville G. Thame |
| This invention relates to thermoplastic, multiphase copolymers selected from the group consisting of copolymers represented by graft copolymers having the general formula ##STR1## AND BLOCK COPOLYMERS HAVING THE GENERAL FORMULA XB--[AB].sub.n --yA wherein n is an integer .gtoreq.1, m is >1, x and y are 0 or 1, and y is 1 when n is 1, A is a thermoplastic, hydrophobic polymer block having a softening point (i.e., a glass transition or crystalline melting point) of at least 35.degree. C and a molecular weight of at least 2,000, and B is a thermoplastic, hydrophilic polymer block having a softening point of at least about 35.degree. C and a molecular weight of at least about 6,000, which comprises from about 30-97 wt % of said copolymer. The novel polymers of this invention are useful for making water containing gels. Preferably, the thermoplastic multiphase copolymer is a styrene-ethylene oxide copolymer. The novel polymers are made by a process which allows one to prepare a copolymer which is substantially free of homopolymeric impurities. The compositions of the instant invention are melt processable by conventional thermoplastic techniques. | ||||||
| 135 | High crystalline transition temperature elastomers from polyester polyurethanes | US3674746D | 1969-12-02 | US3674746A | 1972-07-04 | LOHSE FRIEDRICH; SCHMID ROLF; FISCH WILLY; BATZER HANS |
| Manufacture of high molecular, crosslinked crystalline polyadducts possessing urethane groups, from (a) linear succinic acid butane-1,4-diol polyesters possessing terminal hydroxyl groups and having an average molecular size of about 750 to about 5300, (b) as crosslinking agents, polyhydroxyl compounds containing at least 3 hydroxyl groups, preferably those having a hydroxyl equivalent weight of at most 300, e.g., 3-hydroxymethyl2,4-dihydroxypentane, and (c) diisocyanates, for example hexamethylene-diisocyanate 3,5,5-trimethyl-3-(isocyanato-methyl)cyclohexane-isocyanate-(1), 2,4-toluylene-diisocyanate or 2,6toluylene-diisocyanate, with 0.9 to 1.1 equivalents of isocyanate groups of the isocyanate being employed in each case per 1 equivalent of the total amount of hydroxyl groups of the two components (a) and (b).
|
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| 136 | Poly(lactoneurethane) adhesives | US3660357D | 1970-10-12 | US3660357A | 1972-05-02 | KOLYCHECK EDMOND G |
| POLYURETHANES PREPARED FROM POLY(EPSILON-CAPROLACTONES) HAVING MOLECULAR WEIGHTS FROM ABOUT 1800 TO ABOUT 2200, LESS THAN ONE MOL OF AN ALIPHATIC GLYCOL AND CERTAIN AROMATIC DIISOCYANATES FROM ADHESIVE MATERIALS WHICH ARE SOFT AND TACKY WHEN HEATED BUT WHICH ON AGING HARDEN AND CRYSTALLIZE TO FORM TOUGH, CRYSTALLINE BUT FLEXIBLE, BONDING AGENTS HAVING GOOD ADHESIVE PROPERTIES. THE POLY(LACTONEURETHANES) ARE PARTICULARLY ADAPTABLE TO PROVIDING ARTICLES ADHERED TOGETHER WITH EXCELLENT STRUCTURAL STABILITY.
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| 137 | MANUFACTURABILITY OF AMORPHOUS POLYMERS IN POWDER BED FUSION PROCESSES | US15738190 | 2016-06-22 | US20180178413A1 | 2018-06-28 | Viswanathan KALYANARAMAN; Chiel Albertus LEENDERS; Hao GU |
| A method of making an article, the method comprising converting a first amorphous polymer to an at least partially crystalline polymeric powder composition and powder bed fusing the at least partially crystalline polymer powder composition to form a three-dimensional article comprising a second amorphous polymer. | ||||||
| 138 | Crystal Nucleating Agents for Polyhydroxyalkanoates | US15786848 | 2017-10-18 | US20180105639A1 | 2018-04-19 | Rachelle Arnold; Adam Johnson |
| This invention relates to compositions and methods for increasing the crystallization rate and/or processing speed of polyhydroxyalkanoate (PHA) polymers. PHA polymers are notorious for slow crystallization rates, reducing the practicality for using PHA for consumer products. Compounds that have similar crystal structures to PHA and have a melting point higher than that of the PHA, such as pentaerythritol, as well as compounds that undergo a crystal structure change at or below the melting point of the polymer, such as sulfur or selenium, act as good crystal nucleators for PHA. | ||||||
| 139 | LED WITH THERMO-RESPONSIVE BLACK-BODY LINE DIMMING | US15545188 | 2016-01-12 | US20180010740A1 | 2018-01-11 | Hugo Johan CORNELISSEN; Jianghong YU; Giovanni CENNINI; Dirk Jan BROER; Kamlesh KUMAR |
| The invention provides a lighting device (10) comprising a light source (100) configured to generate light source light (101) and a light converter element (200), wherein the light converter element (200) comprises a light transmissive matrix (205), wherein the light transmissive matrix (205) comprises: (i) a first luminescent material (210) configured to convert at least part of one or more of (a) the light source light (101) and (b) optionally a second luminescent material light (221) from an optional second luminescent material (220) into a first luminescent material light (211); and (ii) a thermo-responsive liquid crystalline compound (250); wherein the light transmissive matrix (205) is configured in thermal contact with the light source (100), and wherein the lighting device (10) is further configured to provide lighting device light (11) comprising said light source light (101), said first luminescent material light (210) and optionally said second luminescent material light (221), and wherein said light converter element is arranged for changing one or more of the color and color temperature of the lighting device light with the electrical power provided to the light source. | ||||||
| 140 | PROCESS AND APPARATUS FOR DIRECT CRYSTALLIZATION OF POLYCONDENSATES | US15435817 | 2017-02-17 | US20170218119A1 | 2017-08-03 | Andreas CHRISTEL; Brent Allan CULBERT |
| The present invention relates to a process for continuous production of partly crystalline polycondensate pellet material, comprising the steps of forming a polycondensate melt into pellet material; separating the liquid cooling medium from the pellet material in a first treatment space, wherein the pellets after exit from the first treatment space exhibit a temperature TGR, and crystallizing the pellet material in a second treatment space, wherein in the second treatment space fluidized bed conditions exist, and in the second treatment space the pellets are heated by supply of energy from the exterior by means of a process gas. | ||||||
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