CAS: 30136-13-1; Propylene Glycol Monopropyl Ether

专利信息

专利号:WO-8503665-A1
优先权日:1984-02-15
标题:Synthesis of polyurethane products
发明人：HOSTETTLER FRITZ
权利人:PIRRI JAQUELYN P; HOSTETTLER FRITZ
摘要:Wide range of polyurethane products, e.g., cellular, dense elastomer, and integral skin microcellular products, obtained by the reaction of (a) a polyisocyanate compound, (b) a polyol, (c) optionally a chain extender and/or blowing agent with/without other known additives, (d) in the presence of a nonhydroxyl flow modifier characterized by carbon and hydrogen atoms, at least one and, generally, a plurality of oxyalkylene groups, and at least one urethane, $(1,5)omicronp. Several of the polyurethane products exhibit unique properties, e.g., foamed articles with capability to conduct static electricity, soft elastomers characterized by improved coefficient of friction, etc. Several classes of the flow modifiers are novel per se. The polyurethane products can be synthesized via the one shot or prepolymer process. Multipackage systems, in particular, two and three component systems are useful in molding operations, e.g., manufacture of shoe soles.

专利号:US-4161609-A
优先权日:1977-09-14
标题:Synthesis of carboxylic acid esters
发明人：CRAMER RICHARD D
权利人:DU PONT
摘要:A method is provided for converting a carboxylic acid amide to a carboxylic acid ester by reacting a vaporized mixture of the amide and an aliphatic alcohol or a phenol in the presence of a suitable catalyst at temperatures of from 100 DEG C. to 400 DEG C. The process is especially useful for the conversion of methacrylamide to methyl methacrylate.

专利号:US-6586597-B1
优先权日:1998-12-14
标 题 :Continuous process for the preparation of optically pure decahydroisoquinolinecarboxamide
发明人：PARK SANG-HOON; KWAK BYOUNG-SUNG; KIM TAE-YUN; LEE IN-WOO; OH SEUNG-HOON
权利人:SK CORP
摘要:The present invention relates to a continuous process for the preparation of [3S-(3α, 4 a β, 8 a β)]-N-tert-butyl-decahydro-3-isoquinolinecarboxamide, an intermediate useful in the synthesis of compounds for the treatment of viral diseases, from the reduction of N-tert-butyl-1,2,3,4-tetrahydro-3(S)-isoquinolinecarboxamide with a noble metal catalyst supported on inorganic oxide carrier in a fixed bed reaction system, with a high optical yield.

专利号:US-9709891-B2
优先权日:2005-12-09
标 题:Positive resist composition, resin used for the positive resist composition, compound used for synthesis of the resin and pattern forming method using the positive resist composition
发明人：KANDA HIROMI; KANNA SHINICHI
权利人:FUJIFILM CORP
摘要:A positive resist composition comprises: (A) a resin of which solubility in an alkali developer increases under an action of an acid; (B) a compound capable of generating an acid upon irradiation with actinic rays or radiation; (C) a resin having at least one of a fluorine atom and a silicon atom; and (D) a solvent; and a pattern forming method using the positive resist composition.

专利号:US-11491263-B2
优先权日:2017-06-01
标 题:Controllable ion release calcium particles, method for producing same and use thereof
发明人：ENGEL LOPEZ ELISABETH; CASTANO LINARES OSCAR; MARTI MUNOZ JOAN; PLANELL ESTANY JOSEP ANTON
权利人:FUNDACIO INST DE BIOENGINYERIA DE CATALUNYA IBEC; UNIV CATALUNYA POLITECNICA
摘要:The present invention refers to a method for the synthesis of a biodegradable calcium release material that shows controlled ion release properties for tissue engineering, biomaterials containing the calcium particles as well as the calcium particles obtainable therefrom. By varying the treatment temperature of the described method, the calcium material shows different calcium release profiles. Contrary to a specific chemical composition such as CaCO 3 which is associated to a specific calcium release profile, the present invention allows a manifold of compositions, with a manifold of calcium release profiles, all starting from a single specific chemical composition calcium precursor. Therefore, the invention also relates to the use of the controllable release, calcium material in tissue regeneration such as wound healing processes.

专利号:US-2004024225-A1
优先权日:2002-05-24
标题 :Synthesis of diaryl pyrazoles