序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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121 | Method for producing lactic acid based polyurethane | US138539 | 1993-10-15 | US5380813A | 1995-01-10 | Jukka Seppala; Johan-Fredrik Selin; Tao Su |
The present invention relates to a production method of lactic acid-based polyurethanes. In the first phase of the product ion, the monomeric lactic acid is polymerized into an oligomer, the molecular weight thereof being about 500 to 10,000. Next, the oligomer thus obtained is copolymerized with an isocyanate reacting with the free hydroxyl and carboxyl groups thereof into polyurethane with a high molecular weight. To make the oligomer react with diol prior to the copolymerization is unnecessary according to the invention. The lactic acid used need not be absolutely pure, and by modifying the process, various biodegradable end products can be obtained therefrom, which according to the invention are appropriate for the material of disposable packages, agricultural film or planting pots, or as a coating of fertilizer granules. | ||||||
122 | Consolidation of aggregate material | US855001 | 1986-04-22 | USRE32476E | 1987-08-18 | John F. Kistner |
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.This is a Reissue of a Patent which was the subject of a Reexamination Certificate No. [B1 3,805,532], dated [Jul. 16, 1985], Request No. [90/000,598], [Jul. 30, 1984]. | ||||||
123 | Method of forming a urethane prepolymer and its use in consolidating aggregate material | US493378 | 1983-05-10 | US4495310A | 1985-01-22 | Richard R. Dedolph |
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 polyester layer overlying the isocyanate layer are formed, and a urethane prepolymer-forming reaction occurs at the interface between the layers. The resulting urethane prepolymer may be reacted with water to form a cellular urethane polymer, or with an aqueous slurry of unconsolidated aggregate material to form a consolidated aggregate product, such as a plant growth supporting rooting medium. | ||||||
124 | Soil stabilizers and their preparation | US254686 | 1981-04-16 | US4391926A | 1983-07-05 | Hubert S. Creyf |
A soil stabilizer based on a prepolymer with terminal isocyanate groups, obtained by reaction of polyol with a stoichiometric excess of polyisocyanate, said prepolymer being such that in water a substantially stable dispersion of polyurea polymer particles is formed in the presence of a surface-active product. | ||||||
125 | Method of forming a urethane prepolymer and its use in consolidating aggregate material | US262204 | 1981-05-08 | US4329436A | 1982-05-11 | Richard R. Dedolph |
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 temperature of the reactants after addition of isocyanate is at least as high as about 120.degree. C. The resulting urethane prepolymer may be reacted with an aqueous slurry of unconsolidated aggregate material, such as peat, to form a consolidated aggregate product, such as a plant growth-supporting rooting medium. | ||||||
126 | Flower pot and method for making | US944507 | 1978-09-21 | US4193909A | 1980-03-18 | John A. Lundberg; Robert J. Schafer; Richard H. Toeniskoetter; Richard L. Pelfrey |
Disclosed is a resin-aggregate mixture comprising polyurethane resin, aggregate (sand), silane compounds, iron oxide and powdered thermoplastic resins. Flower pots from this composition are cured either with a tertiary amine, base, or metallic ion. The cured pots subsequently are baked at a temperature sufficient to fuse the thermoplastic resin to provide a pot having air permeability but resistance to the permeation of water. | ||||||
127 | Crosslinked hydrophilic foams and method | US805458 | 1977-06-10 | US4137200A | 1979-01-30 | Louis L. Wood; Kurt C. Frisch |
The invention disclosed is for new improved hydrophilic crosslinked polyurethane foams prepared by reacting a blend of a monomeric polyol and polyoxyalkylene glycol (the --OH groups of said blend being capped with a polyisocyanate) with large amounts of an aqueous reactant. The resultant foams may be characterized with a broad spectrum of improved properties including hydrolytic stability and tensile strength. | ||||||
128 | 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. | ||||||
129 | Polyurethane hydrogel fibers and tapes and composites with natural and other synthetic fibers or films | US480566 | 1974-06-18 | US3940542A | 1976-02-24 | Robert John Knopf; Virgil Edison Matthews; Allen Paul Jones, Jr. |
Method for the production of water swellable, lightly crosslinked, hydrogel polymer tapes or fibers comprises extruding an isocyanato terminated prepolymer of a poly(alkyleneoxy) polyol and an organic diisocyanate into a coagulant or crosslinking bath containing water or organic polyamine as the crosslinker. | ||||||
130 | Microporous polyurethane hydrogels, method and composites with natural and other synthetic fibers or films | US480567 | 1974-06-18 | US3939105A | 1976-02-17 | Allen Paul Jones, Jr.; Robert John Knopf; Claude Milton Conner |
Microporous polyurethane hydrogels of high water swellability comprising lightly crosslinked polymers of isocyanate terminated prepolymers which are the reaction product of (i) poly(alkyleneoxy) polyol with (ii) organic diisocyanate that has been lightly crosslinked with (iii) water or an organic polyamine are produced by impregnating the isocyanato terminated prepolymer solution prior to contact with the crosslinking agent with a minor significant amount of a liquid non-solvent. | ||||||
131 | Consolidation of mineral aggregate | US10037870 | 1970-12-21 | US3805531A | 1974-04-23 | DISTNER J |
A permeable mass of moisture-containing mineral aggregate, such as superficial soil or sand, is contacted with a fluid agent comprising hydrophilic urethane prepolymer to form in situ an insoluble, hydrophilic polyurethane-polyurea polymeric matrix which adhesively bonds the aggregate together as a consolidated unitary mass useful, for example, as a load-bearing structure or as a relatively water-impermeable barrier.
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132 | 分岐澱粉を含有する成形物 | JP2015027571 | 2015-02-16 | JP2015098603A | 2015-05-28 | 西本 友之; 茶圓 博人; 福田 恵温; 三宅 俊雄 |
【課題】 本発明は、耐老化性を有する新規澱粉質を含有する、保存安定性の向上した成形物を提供することを課題とするものである。 【解決手段】 顕著な老化耐性を有する、6−α−マルトシル分岐構造及び/又は6−α−マルトテトラオシル分岐構造を有する分岐澱粉を含有する成形物を提供することにより上記課題を解決する。 【選択図】 なし |
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133 | Biodegradable resin and a method of manufacturing the same | JP2013551882 | 2011-04-29 | JP2014503676A | 2014-02-13 | ガン、ギョンドン; チョル ユン、ギ; チョン、ゾンピル; アン、ジシュ; キム、イェジン; キム、セフン; ホン、ソンヨン; パク、ソンベ |
本発明は、ポリエステル重合体と鎖延長剤として使用される多価イソシアネート化合物とを反応させて生成されるウレタン結合を含む生分解性樹脂であって、鎖延長剤の使用を制限しながらも、優れた物性を有する生分解性樹脂を製造する方法及びそれによって樹脂内に含まれた窒素の含量が調節されたことを特徴とする生分解性樹脂を提供する。 本発明によれば、生分解性樹脂の製造過程で人体及び環境に有害な成分の使用量を低減することができ、これにより、食品または医薬品包装材などとして安全に使用されることができる生分解性樹脂が提供される。 | ||||||
134 | Polyhydroxyalkanoate resin foam particles, and a manufacturing method of the molded body and the resin foam particles | JP2007521191 | 2006-04-10 | JP5014127B2 | 2012-08-29 | 健一 千田; 登志夫 宮川; 文信 廣瀬 |
135 | Coating material of quick-drying | JP2011541294 | 2009-12-03 | JP2012512295A | 2012-05-31 | マリア シュタインブレヒャー アンゲリカ; マルティン−ポルトゥゲス マルタ; ハーベレヒト モニカ; クラウス ヨアヒム |
本発明は、速乾性の二成分ポリウレタン被覆材料、該被覆材料の製造方法及び該被覆材料の使用に関する。 | ||||||
136 | 分岐澱粉を含有する成形物 | JP2008538683 | 2007-10-04 | JPWO2008044586A1 | 2010-02-12 | 西本 友之; 友之 西本; 茶圓 博人; 博人 茶圓; 福田 恵温; 恵温 福田; 三宅 俊雄; 俊雄 三宅 |
本発明は、耐老化性を有する新規澱粉質を含有する、保存安定性の向上した成形物を提供することを課題とするものである。顕著な老化耐性を有する、6−α−マルトシル分岐構造及び/又は6−α−マルトテトラオシル分岐構造を有する分岐澱粉を含有する成形物を提供することにより上記課題を解決する。 | ||||||
137 | Water-based polyurethane resin composition and coated object formed by applying same | JP2008045921 | 2008-02-27 | JP2009203316A | 2009-09-10 | FUJITA NAOHIRO; NAKATSUJI AKIRA |
<P>PROBLEM TO BE SOLVED: To provide a water-based urethane resin composition excellent in water resistance, chemical resistance, etc., allowing suitable use in surface-treated steel sheet paint applications, and to provide a sheeted coated object. <P>SOLUTION: The water-based polyurethane resin composition uses as essential components (a) an isocyanurate compound represented by the general formula (1), (b) a 10-32C long chain alkylene diol compound, (c) a polyisocyanate compound, (d) a polyol compound, (e) an anionic group-introducing compound, (f) an anionic group neutralizer, and water, wherein R<SP>1</SP>represents a 10-32C alkyl group, and R<SP>2</SP>represents -N=C=O or an urethane group. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
138 | ポリヒドロキシアルカノエート樹脂発泡粒子、およびその成形体と該樹脂発泡粒子の製造方法 | JP2007521191 | 2006-04-10 | JPWO2006112287A1 | 2008-12-11 | 宮川 登志夫; 登志夫 宮川; 廣瀬 文信; 文信 廣瀬; 千田 健一; 健一 千田 |
植物由来の環境適合性に優れた生分解性の樹脂発泡粒子を金型に充填し、加熱成形してなる発泡粒子成形体において、成形後の後収縮が見られず、かつ、成形時の加工幅が広い事を特徴とした発泡粒子成形体を提供する。詳しくは、微生物から生産される、一般式(1):[−O−CHR−CH2−CO−] (1)(式中、RはCnH2n+1で表されるアルキル基であり、nは1〜15の整数である。)で示される繰り返し単位を含む重合体ポリ(3−ヒドロキシアルカノエート)、およびイソシアネート化合物を含む樹脂組成物からなるP3HA樹脂発泡粒子である。 | ||||||
139 | Method for producing a plastic having an amide group | JP51291793 | 1993-01-22 | JP3309980B2 | 2002-07-29 | クライン、ヨハン; クラウク、ヴォルフガング; グリュツマッヒャー、ローラント; クルート、ヘルマン; ダウテ、ペーター |
140 | Manufacture of crosslinked hydrophilic foamed body | JP11668082 | 1982-07-05 | JPS58108219A | 1983-06-28 | RUISU ERU UTSUDO; KAATO SHII FURITSUSHIYU |
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. |