| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | BIODEGRADABLE RESIN AND METHOD FOR MANUFACTURING SAME | US13879956 | 2011-04-29 | US20130202223A1 | 2013-08-08 | Gyung Don Kang; Ki Chull Yun; Jong Pil Chun; Ji Soo Ahn; Ye Jin Kim; Sei Hoon Kim; Seong Yong Hong; Sung Bae Park |
| Provided is a biodegradable resin including a urethane bond generated by a reaction of a polyester polymer with a polyvalent isocyanate used as a chain extender. Particularly, provided is a method of preparing a biodegradable resin using a limited amount of the chain extender and having excellent properties, and a biodegradable resin in which nitrogen content is controlled. Therefore, the biodegradable resin which can reduce the use of a harmful component to the human body and environment in the process of preparing the biodegradable resin and can be safely used for packing materials for food or medicine is provided. | ||||||
| 82 | MICROCAPSULES WITH ACETYLENE CARBAMIDE-POLYUREA POLYMERS AND FORMULATIONS THEREOF FOR CONTROLLED RELEASE | US13489208 | 2012-06-05 | US20120245027A1 | 2012-09-27 | Victor Casaña Giner; Miguel Gimeno Sierra; Barbara Gimeno Sierra |
| The present Invention deals with an alternative Interfacial polymerization process of microencapsulation, microcapsule's produced thereof, microencapsulated agrochemicals, pharmaceuticals, catalysts and phase transfer materials, and formulations thereof, by means of microcapsules and starting materials with the participation of acetylene carbamide derivatives in the final structure of the microcapsules' wall. | ||||||
| 83 | CROSS-LINKED THERMOPLASTIC POLYURETHANE/POLYUREA AND METHOD OF MAKING SAME | US12855130 | 2010-08-12 | US20100303950A1 | 2010-12-02 | PIJUSH K. DEWANJEE; JOHN G. GUARD |
| A process for forming a cross-linked thermoplastic polymer is disclosed herein. The cross-linked thermoplastic polymer is formed by heating a first mixture containing a thermoplastic urethane base material, a monomeric diisocyanate comprising between 1 to 10% of the total weight of the first mixture, and a second mixture of a first diamine and a second diamine comprising between 1 to 10% of the total weight of a total reaction product. The heated first mixture, which is flowable, is injected into at least one injection molding device, with the second mixture injected at predetermined intervals to create a homogeneous reaction product. | ||||||
| 84 | Cross-linked thermoplastic polyurethane/polyurea and method of making same | US12471659 | 2009-05-26 | US07785522B2 | 2010-08-31 | Pijush K. Dewanjee; John G. Guard |
| A process for forming a cross-linked thermoplastic polymer is disclosed herein. The cross-linked thermoplastic polymer is formed by heating a first mixture containing a thermoplastic urethane base material, a monomeric diisocyanate comprising between 1 to 10% of the total weight of the first mixture, and a second mixture of a first diamine and a second diamine comprising between 1 to 10% of the total weight of a total reaction product. The heated first mixture, which is flowable, is injected into at least one injection molding device, with the second mixture injected at predetermined intervals to create a homogeneous reaction product. | ||||||
| 85 | POLYHYDROXYALKANOATE-BASED RESIN FOAMED PARTICLE, MOLDED ARTICLE COMPRISING THE SAME AND PROCESS FOR PRODUCING THE SAME | US11911552 | 2006-04-10 | US20090149560A1 | 2009-06-11 | Toshio Miyagawa; Fuminobu Hirose; Kenichi Senda |
| The object is to provide a molded product of foamed particles obtained by charging biodegradable resin foamed particles which are of vegetable origin and excellent in environmental compatibility into a mold, followed by heat molding, which molded product is not accompanied by post shrinkage after the molding with a wide range of variation of processing in the molding. Further, P3HA resin foamed particles being composed of a resin composition that comprises an isocyanate compound, and a polymer, poly(3-hydroxyalkanoate), having a recurring unit represented by the general formula (1): [—O—CHR—CH2—CO—] (1) (wherein R represents an alkyl group represented by CnH2n+1, wherein n is an integer of from 1 to 15) produced by a microorganism are provided. | ||||||
| 86 | Microcapsules With Acetylene Carbamide-Polyurea Polymers and Formulations Thereof for Controlled Release | US12225890 | 2007-03-28 | US20090099024A1 | 2009-04-16 | Victor Casana Giner; Miguel Gimeno Sierra; Barbara Gimeno Sierra |
| The present invention deals with an alternative interfacial polymerization process of microencapsulation, microcapsule's produced thereof, microencapsulated agrochemicals, pharmaceuticals, catalysts and phase transfer materials, and formulations thereof, by means of microcapsules and starting materials with much lower toxicological profile than customary microencapsulation materials, and with the participation of acetylene carbamide derivatives in the final structure of the microcapsules' wall. | ||||||
| 87 | Aliphatic copolyester resin, a preparation method, an aliphatic polyester resin composition, uses thereof, a coating composition, a particle-state composition for agriculture and gardening coated by degradabel layer | US10991658 | 2004-11-18 | US20050153149A1 | 2005-07-14 | Masanori Sakane; Michiyo Nakai; Kunio Shimizu; Yasuteru Kajikawa; Masaaki Ito |
| This invention relates to aliphatic polyesters having a controlled thermal decomposition, hydrolizability, and biodegradability, in which OH terminals and COOH terminals are decreased through a ring-opening polymerization of a lactone and lactide by a mono alcohol or a metal alkoxide, or by decreasing both terminals through combining polymer terminals with diisocyanate. From a composition containing the polyesters, this invention provides a controlled release composition for agriculture. From a resin primarily containing fatty acid cellulose ester derivatives, this invention provides a base film for a marking film without volatilization and plasticizer migration problems; a picture image formable heat-sensitive transfer recording material with excellent strippability, coloring concentration, and brightness; a conductive coating composition with excellent storage stability, adhesion, and conductivity; a single-liquid type coating for a moisture-curable graft copolymer, and a non-toxic and non-irritating coating composition with excellent dryability. The copolymers of this invention also have excellent heat and impact resistance. | ||||||
| 88 | Acid-triggered release microcapsules | US09363571 | 1999-07-29 | US06337130B1 | 2002-01-08 | Juanita Elena Van Koppenhagen; Herbert Benson Scher; Kuo-Shin Lee; Ian Malcolm Shirley; Philip Wade; Richard Follows |
| Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or —NH-groups, or (c) an optionally substituted ethylene or propylene moiety Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c). The microcapsules are acid-sensitive and the capsule walls are relatively readily degraded or disintegrated by contacting the microcapsules with an acidic substance, preferably an organic or inorganic acid whereby the encapsulated ingredient or ingredients are released into the surrounding environment. The invention is particularly suitable for encapsulation of biologically active substances and agrochemicals, and most preferably pesticides for foliar treatment. | ||||||
| 89 | Method of producing a high molecular weight aliphatic polyester and film thereof | US107776 | 1993-08-18 | US5436056A | 1995-07-25 | Eiichiro Takiyama; Yoshitaka Hatano; Takashi Fujimaki; Shigekatu Seki; Takao Hokari; Tadayuki Hosogane; Noriaki Harigai |
| A method for producing a high molecular weight aliphatic polyester, wherein:(A) 100 parts by weight of polyester (a) with a number average molecular weight of at least 10,000, and a weight average molecular weight of at least 30,000, and with end-groups that are substantially hydroxyl groups, and with a melting point of at least 60.degree. C., the polyester (a) having been obtained by reacting the following three ingredients: (i) a glycol ingredient; (ii) an aliphatic dicarboxylic acid ingredient; and (iii) a trifunctional or tetrafunctional ingredient reacts with(B) 0.1-3 parts by weight of a poly-isocyanate in a melted state of the polyester (a).The method provides a high molecular weight aliphatic polyester which has good properties and a melt viscosity required for molding and forming and has a wide molecular weight distribution. The high molecular weight aliphatic polyester is applicable to a variety of fields, such as films, moldings and formings, fibers, etc. | ||||||
| 90 | US19035871 | 1971-10-18 | US3805532B1 | 1985-07-16 | ||
| Aggregate material is contacted with a fluid agent comprising a hydrophilic urethane prepolymer to form a hydrophilic polyurethane-polyurea polymeric matrix which adhesively bonds the aggregate together as a resilient, integral, water-permeable mass which will sustain plant growth. | ||||||
| 91 | Preparation and use of enzymes bound to polyurethane | US362488 | 1973-05-21 | US4312946A | 1982-01-26 | Louis L. Wood; Frank J. Hartdegen; Peter A. Hahn |
| To chemically bind either impure or purified enzymes to polyurethane to produce insolubilized bound enzymes which are still enzymically active and which may be more stable than the original enzyme, and which can be reused without appreciable activity loss and whose physical characteristics can be varied depending on the application for which they are intended. | ||||||
| 92 | Method of producing flexible reticulated polyether polyurethane foams | US39414 | 1979-05-15 | US4259452A | 1981-03-31 | Toshio Yukuta; Kazuo Yagura; Nobuhisa Fuchigami |
| A method of producing flexible polyether polyurethane foams, which have a substantially skeletal reticulated structure, is disclosed. When the flexible foam is produced by reacting a polyhydroxyl compound with an organic polyisocyanate in the presence of a blowing agent by one-shot process, a catalyst and other additives, a mixture of (a) poly(oxyethylene-oxypropylene)polyether polyol containing 51 to 98% by weight of ethylene oxide component and (b) poly(oxyethylene-oxypropylene)polyether polyol containing not less than 51% by weight of propylene oxide component is used as the polyhydroxyl compound. | ||||||
| 93 | Multiphase block and graft copolymers comprising a hydrophilic continuous phase and hydrophobic domains | US779902 | 1977-03-21 | US4130517A | 1978-12-19 | 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, 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. | ||||||
| 94 | Multiphase block and graft copolymers comprising a hydrophilic continuous phase and hydrophobic domains | US758421 | 1977-01-11 | US4104824A | 1978-08-08 | 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 cyrstalline 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. | ||||||
| 95 | Process for the production of polyurethane foams | US438052 | 1974-01-30 | US3970618A | 1976-07-20 | Gert Jabs; Gunther Loew; Johannes Niggemann |
| Process for the production of a hydrophilic polyurethane foam having a high water retention capacity by reacting a polyhydroxyl compound having an OH number from 900-1800 and a polyisocyanate containing an aromatically bound isocyanate group and containing a urethane, urea, carbodiimide, allophanate, isocyanurate or biuret group. | ||||||
| 96 | Preparation and use of enzymes bound to polyurethane | US36248873 | 1973-05-21 | US3928138A | 1975-12-23 | WOOD LOUIS L; HARTDEGEN FRANK J; HAHN PETER A |
| To chemically bind either impure or purified enzymes to polyurethane to produce insolubilized bound enzymes which are still enzymically active and which may be more stable than the original enzyme, and which can be reused without appreciable activity loss and whose physical characteristics can be varied depending on the application for which they are intended.
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| 97 | Artificial protective environment for plants | US27853472 | 1972-08-07 | US3920436A | 1975-11-18 | JANSSEN EDWARD W |
| Plants are contacted with a fluid agent comprising a hydrophilic urethane prepolymer which is then cured in the presence of water to form a thin discontinuous coating of a water-insoluble, hydrophilic polyurethane-polyurea polymer, thereby providing an artificial protective environment for the plant or portion thereof contacted, which is not detrimental to germination or growth. Agrichemicals such as herbicides, growth promoters, insecticides, or other additives can be included as desired for specific plant growth, seeds, or conditions.
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| 98 | Method for preparing horticultural foam structures | US47049274 | 1974-05-16 | US3889417A | 1975-06-17 | WOOD LOUIS LEONARD; FRISCH KURT CHARLES |
| The invention disclosed provides a method for preparing horticultural foam structures. A foam sheet prepared by reacting an isocyanate capped polyoxyethylene polyol reactant with large amounts of an aqueous reactant is used as a carrier for pesticides, herbicides, seeds or the like. Desirably, the foam sheet further includes a support material for the foam sheet, the resultant composite foam structure provides an effective means for protecting dormant seeds, for sustaining seed germination plant growth, or optionally for controlled release of pesticides and/or herbicides.
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| 99 | Hydrophilic polyurethane foam | US40898373 | 1973-10-23 | US3873476A | 1975-03-25 | JABS GERT; LOEW GUNTHER |
| An open-cell, hydrophilic polyurethane foam having a high compression strength and a high water retention capacity which foam is suitable for use as a substrate for cut flowers and which foam is obtained from reaction of a polyisocyanate and a mixture of two different type polyhydroxyl compounds while in admixture with an emulsifier and a blowing agent.
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| 100 | Process for the production of hydrophilic foam plastics | US33193673 | 1973-02-12 | US3838075A | 1974-09-24 | DIETRICH W; ANDRES K; NIGGEMANN J; ROOS E |
| HYDROPHILIC POLYURETHANE FOAMS WELL-SUITED FOR USE AS SUBSTRATE FOR THE PROPAGATION AND CULTIVATION OF PLANTS ARE PREPARED BY THE ISOCYANATE POLYADDITION PROCESS BY REACTING A POLYISOCYANATE WITH COMPOUNDS CONTAINING AT LEAST TWO HYDROGEN ATOMS REACTIVE WITH -NCO GROUPS WHEREIN FROM ABOUT 5% TO ABOUT 100% BY WEIGHT BASED ON THE WEIGHT OF ACTIVE HYDROGEN CONTAINING COMPOUND OF A BETAINE IS INCORPORATED IN THE REACTION MIXTURE, SAID BETAINE CONTAINING AT LEAST ONE GROUP THAT IS REACTIVE WITH -NCO GROUP.
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