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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
201 BLOCK COPOLYMERS AND USES THEREOF US15017028 2016-02-05 US20160256569A1 2016-09-08 James Brandon DIXON; Jeffrey A. HUBBELL; Conlin P. O'NEIL; Melody SWARTZ; Diana VELLUTO
Block copolymers containing charged blocks or chemical moieties sensitive to oxidation or hydrolysis have been developed. We describe the use of such block copolymers in supramolecular structures, e.g., micelles or vesicles, and pharmaceutical compositions and in methods of preparing the supramolecular structures and pharmaceutical compositions. The invention is particularly useful for the delivery of pharmaceutical agents, e.g., nucleic acids, to cells.
202 Composition and Polymer US15081228 2016-03-25 US20160222168A1 2016-08-04 Akitake Nakamura; Takeshi Endo
Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.
203 Composition for optical materials, process for production thereof, and optical materials made from the composition US14672922 2015-03-30 US09260566B2 2016-02-16 Kouhei Takemura; Hiroshi Horikoshi
The present invention has an object of providing, for example, a composition for optical materials which contains a polythiol that can be predicted and assessed, in a stage prior to polymerization/curing, as being clouded or not clouded after polymerization/curing, and thus can be determined as being good or defective. According to the present invention, the above-described object is achieved by, for example, a composition for optical materials which comprises a polythiol that exhibits an initial turbidity of 0.5 ppm or less and a turbidity of 0.6 ppm or less after the storage at 50° C. for 7 days, and an episulfide. Namely, an optical material made from a composition for optical materials which contains a polythiol satisfying the above turbidity requirements can be prevented from clouding to exhibit excellent transparency.
204 POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIALS US14380809 2013-02-27 US20150011727A1 2015-01-08 Eiji Koshiishi; Hitoshi Okazaki; Motoharu Takeuchi
The present invention includes a polymerizable composition for optical materials, which contains a thiourethane oligomer that is obtained by preliminarily reacting the whole or a part of a thiol compound and an isocyanate compound in a composition that contains an episulfide compound, the thiol compound and the isocyanate compound, while using a compound represented by formula (2) below as a catalyst for preliminary reaction. (In formula (2), R represents an alkyl group having 1 to 4 carbon atoms; and X represents an organic group which has 2 to 11 carbon atoms and contains a vinyl group, a vinylidene group or a vinylene group.)
205 Composition and Polymer US14117291 2012-07-18 US20140121293A1 2014-05-01 Akitake Nakamura; Takeshi Endo
Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.
206 Episulfide compound US782720 1997-01-13 US5945504A 1999-08-31 Akikazu Amagi; Nobuyuki Uemura; Motoharu Takeuchi; Kenichi Takahashi; Minoru Ohashi; Hiroshi Horikoshi; Masanori Shimuta
An episulfide which has an alicyclic, aromatic or heterocyclic skeleton and has two or more moieties represented by the formula ##STR1## wherein X is S or O, and S is in an amount of 50% or more, on the average, of the total of S and O constituting a three-membered ring. A cured material obtained by polymerizing this episulfide compound is a desirable optical material for various uses, particularly as a lens material for spectacles.
207 Alkyl sulfide type episulfide compound US693592 1996-08-02 US5807975A 1998-09-15 Akikazu Amagai; Motoharu Takeuchi; Kenichi Takahashi
An alkyl sulfide type episulfide compound represented by the following general formula (I) or (II) is herein disclosed: ##STR1## A material obtained by polymerizing/curing the above-mentioned compound is desirable as an optical material for various purposes, particularly a lens material for spectacles.
208 Process for producing modified polyaminoamide, modified polyaminoamide produced thereby, and epoxy resin curing agent comprising the said modified polyaminoamide US291069 1994-08-17 US5478912A 1995-12-26 Kazumasa Kimura; Takashi Kai; Hitoshi Yano; Ryuichi Ishikawa; Kazuaki Abe; Yoshihiro Arita
A process for producing a modified polyaminoamide with markedly increased reactivity as an epoxy resin curing agent is disclosed. The process comprises introducing amino groups and mercapto groups into a polyaminoamide by using an aziridine compound and a thiirane compound. The modified polyaminoamide is capable of curing an epoxy resin at a low temperature and at a high rate to provide a cured epoxy resin excellent in anticorrosion and chemical resistance.
209 Catalyst useful for the episulphide polymerization and copolymerization and process employing said catalysts US27646472 1972-07-31 US3840503A 1974-10-08 ROGGERO A; MAZZEI A; PRONI A
1. PROCESS FOR THE PREPARATION OF EPISULPHIDE PLYMERS WHEREIN AN EPISULPHIDE MONOMER IS CONTRACTED, AT A TEMPERATURE IN THE RANGE OF -80 TO 150*C, WITH A CATALYSTCOCATALYST REACTION PRODUCT WHEREIN: THE CATALYST IS A MEMBER OF THE GROUP CONSISTING OF (1) ALUMINUM HYDRIDES REPRESENTED BY THE FORMULA:

A1HXY.Z

WHEREIN X AND Y, THE SAME OR DIFFERENT, ARE SELECTED FROM HYDROGEN, HALOGEN AND RESIDUES OF ALIPHATIC OR AROMATIC SECONDARY AMINES AND Z IS A LEWIS BASE SELECTED FROM ETHERS AND AMINES WHICH MAY BE ABSENT WHEN X AND/OR Y REPRESENT A SECONDARY AMINE RESIDUE; AND (2) MIXED HYDRIDES REPRESENTED BY THE FORMULA:

ME(ME''H4)N

WHEREIN ME'' IS A NUMBER OF THE GROUP CONSISTING OF A1, B AND GA, ME IS A NUMBER OF THE GROUP CONSISTING OF LI, K, RB, CS, CA, MG, BE, SR AND BA, AND N IS 1 TO 3; THE COCATALYST IS A POLYREACTIVE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULPHOXIDES, SULPHONES, OXIMES, NITRO-OR NITROSO-DERIVATIVES OF ALKYL OR ARYL HYDROCARBONS, PHOSPHORAMIDES, AND CONTAINING (A) AT LEAST TWO ACTIVE HYDROGEN; (B) AN ACTIVE HYDROGEN AND A GROP REPRESENTED BY C=O, N=O, S=O, P=O, C=S, P=S AND C$N; (C) AT LEAST TWO GROUPS SELECTED FROM P=O, P=N, C=O, N=O, S=O, C=S, P=S, C$N, AND N=S; (D) AT LEAST ONE GROUP REPRESENTED BY N=N-.
210 Flame retarding hologenated compounds US17569271 1971-08-27 US3821316A 1974-06-28 TANIUCHI A; NAKANO T
Novel halogenides of a reaction product of a phenol, alcohol, fatty acid, thiophenol or mercaptane with a glycidyl ether, glycidyl ester or glycidyl thioether and, if necessary, an alkylene oxide or alkylene sulfide are excellent flame-retarding agents for polystyrene and a polystyrene composition containing said halogenated compound is self-extinguishable and resistant to weather and discoloration with lapse of time.
211 Halogen adduct of ethylene sulfide US3767672D 1971-02-16 US3767672A 1973-10-23 VILLA J
A NOVEL HALOGEN ADDUCT OF ETHYLENE SULFIDE,

X2-S<(-CH2-CH2-)

WHEREIN X IS BR, CL OR I, IS PREPARED AND USED AS AN OXIDATIN STABLIZIER IN A STABILIZER SYSTEM FOR AN ETHYLENE SULFIDE POLYMER TO PREVENT THE OXIDATION DEGRADATION OF THE POLYMER, PARTICULARLY DURING PROCESSING. IN A PREFERRED PROCESS THE OXIDATION STABILIZER IN THE SYSTEM IS FORMED IN SITU IN THE POLYMER BY POLYMERIZING ETHYLENE SULFIDE IN THE PRESENCE OF FROM ABOUT 0.04 TO 4% OF BR2,CL2 OR I2. A THERMAL STABILIZER IS ADDED ALSO TO THE POLYMER BEFORE HIGH TEMPERATURE PROCESSING TO PREVENT THERMAL DEGRADATION.
212 Method of making ethylene sulfide polymers by addition of stabilizers to reaction mixture prior to polymerization US3679616D 1970-07-30 US3679616A 1972-07-25 VILLA JOSE L
ETHYLENE SULFIDE POLYMERS ARE STABILIZED AGAINST OXIDATIVE DEGRADATION BY INCORPORATING THEREIN A SMALL AMOUNT OF FINELY DIVIDED COPPER OR A COPPER SALT ESSENTIALLY INSOLUBLE IN AND INERT TOWARD ETHYLENE SULFIDE NONOMER. REPRESENTATIVE COPPER SALTS ESSENTIALLY INSOLUBLE IN AND INERT TOWARD ETHYLENE SULFIDE MONOMER. REPRESENTATIVE COPPER SALTS ARE CUPROUS POTASSIUM CYANIDE, CUPRIC HYDROXIDE, CUPROUS CYANIDE, CUPRIC CARBONATE, CUPRIC SULFATE AND COPPER SLEARATE. THE STABILIZING AGENT IS INCORPORATED IN THE PLYMERIZATION MIXTURE PRIOR TO POLYMERIZATION. KNOWN THERMAL STABILIZING AGENTS MAY BE ADDED TO THE POLYMER TO IMPROVE ITS OVERALL STABILITY.

D R A W I N G
213 Process for polymerizing three-membered heterocyclic compounds US3671466D 1970-07-07 US3671466A 1972-06-20 SHIKATA KAZUO; NAKAO SUEKITI; KNOMI KATSUTOSHI
Process for polymerizing three-membered heterocyclic compounds such as propylene oxide, using a new binary catalyst, i.e., a combination catalyst of two metallic components: a heavy metal organic compound of either nickel or cobalt and an organic compound of zinc.
214 Filaments and films of polymers of alkylene sulfides US3668060D 1970-04-10 US3668060A 1972-06-06 POLESTAK WALTER J
Hard stretch filaments and films produced by extruding a heat softened or molten polymer of alkylene sulfide, such as polyethylene sulfide, having an inherent viscosity of about 0.5 or greater, through a shaping orifice to form the filament or film and taking up the product at a linear rate of from 20 to 3,000 meters per minute at a drawdown ratio of from 100:1 to 4000:1. A filament which spontaneously develops helical crimps along its length produced when a drawdown ratio greater than 1200:1 is used. Open-celled filaments or films produced from the hard stretch filaments and films by stretching the filaments or films in a range of from about 50 percent of the unstretched length up to about 90 percent of the breaking elongation and stabilized by heating the filament or film while in the stretched state to a temperature in the range from about 80*C. to a temperature below the melting point of the polymer.
215 Moulding and coating masses hardenable by uv irradiation US3657088D 1969-12-17 US3657088A 1972-04-18 HEINE HANS-GEORG; FUHR KARL; RUDOLPH HANS; SCHNELL HERMANN
The invention relates to compounds and mixtures of compounds polymerisable by UV-irradiation which contain Alpha -substituted benzoins of the formula IN WHICH Ar stands for the unsubstituted phenyl radical or a phenyl radical substituted by lower alkyl having up to about 4 carbon atoms, methoxy, ethoxy or halogen, and R stands for hydrogen or acetyl, and the production of polymeric compounds thereof.
216 Oxirane and episulfide polymerization using catalysts based on aluminum pyrolate US3595972D 1969-08-11 US3595972A 1971-07-27 MEKLER ARLEN B; BORCHELT ALFRED E; SAUER RICHARD W
THE PYROLYSIS OF ALKYLALUMINUM COMPOUNDS IN A NONOXIDIZING, NON-HYDROLYZING ENVIRONMENT PRODUCES A CATALYTICALLY ACTIVE SOLID WHICH IS CHARACTERIZED BY THE EVOLUTION OF A HYDROCARBON GAS UPON HYDROLYSIS. PREFERABLY, AN ALKYLALUMINUM COMPOUND IS HEATED AT TEMPERATURES IN EXCESS OF 400*F. FOR A TIME IN EXCESS OF 6 HOURS. THE CATALYST CAN BE UTILIZED TO PROMOTE VARIOUS CHEMICAL REACTIONS SUCH AS ALKYLATION, POLYMERIZATION, PARTICULARLY EPOXIDE POLYMERIZATION, ISOMERIZATION, DEHYDROGENATION, HYDROGENATION, CONDENSATION, DEALKYLATION, ARYLATION, ACYLATION AND DISPROPORTIONATION. VARIOUS IMPROVEMENTS ARE ALSO OBTAINED WHEN THIS CATALYST IS COMBINED WITH EITHER A LEWIS BASE, ALUMINUM CHELATE OR WATER.
217 Polyalkylene oxide polymerization catalyst US3506592D 1967-12-26 US3506592A 1970-04-14 CALDERON NISSIM
218 Olefin oxide and olefin sulfide polymerization US63859867 1967-05-15 US3409565A 1968-11-05 JOGINDER LAL
219 Production of high molecular weight polymers of vicinal episulfides US48474965 1965-09-02 US3402154A 1968-09-17 ROY LARSEN
220 Epoxy resin compositions US53895066 1966-03-31 US3394098A 1968-07-23 MCLAY CAMERON GRANT