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公开(公告)号：US5958184A
公开(公告)日：1999-09-28
申请号：US15627
申请日：1998-01-29
CPC分类号： D21C9/16 , D21C9/1084
摘要： A process for producing a thiourea dioxide fluid by mixing thiourea and a peroxide, or thiourea, a peroxide and a reaction catalyst, or thiourea, a peroxide, a reaction catalyst and a chelating agent, in the absence or presence of pulp and a process for bleaching pulp by the use of the thiourea dioxide fluid produced by the above process economically advantageously with a small chemicals loss and by small consumption of energy.
摘要翻译： 在不存在或存在纸浆的情况下，通过混合硫脲和过氧化物或硫脲，过氧化物和反应催化剂或硫脲，过氧化物，反应催化剂和螯合剂来制备二氧化硫脲二氧化物流体的方法， 通过使用由上述方法生产的二氧化硫脲液体经济地有利地具有小的化学品损失和少量的能量漂白纸浆。
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公开(公告)号：US4390643A
公开(公告)日：1983-06-28
申请号：US299168
申请日：1981-09-03
IPC分类号： C08J9/14
CPC分类号： C08J9/141 , C08J9/147 , C08J2361/00
摘要： A process for producing amine formaldehyde resin foam by using a precondensate for the amine formaldehyde resin, a foaming agent, a surfactant and a curing agent is disclosed. Said process is characterized in that the foaming agent is selected from the group consisting of aliphatic hydrocarbons or halogenated aliphatic hydrocarbons having a boiling point in the range of from about -30.degree. C. to about 30.degree. C., the foaming agent is used in amount of from about 0.07 mol to about 1.0 mol per 100 gr. of solid content of the precondensate for resin (residue obtained by heating the precondensate in accordance with JIS K 5400 8.2.1.), the process comprising mixing the precondensate, the foaming agent and the surfactant, emulsifying the resulting mixture at a specified pressure at a temperature of at least 0.degree. C. and higher than the boiling point of the foaming agent by 5.degree.-50.degree. C., and while or after mixing the curing agent with the mixture, foaming the mixture at a specified temperature and pressure.
摘要翻译： 公开了一种通过使用胺甲醛树脂，发泡剂，表面活性剂和固化剂的预缩合物生产胺甲醛树脂泡沫的方法。 所述方法的特征在于，发泡剂选自沸点在约-30℃至约30℃范围内的脂族烃或卤代脂族烃，发泡剂用于 数量为每100克约0.07摩尔至约1.0摩尔。 树脂预固化物的固体含量（通过根据JIS K 5400 8.2.1加热预缩合物得到的残渣），包括混合预缩合物，发泡剂和表面活性剂的方法，将所得混合物在特定压力下乳化 温度至少为0℃，高于发泡剂的沸点5℃-50℃，并且在将固化剂与混合物混合之后或之后，在特定温度和压力下使混合物发泡。
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公开(公告)号：US5104635A
公开(公告)日：1992-04-14
申请号：US575649
申请日：1990-08-31
申请人： Toshiaki Kanada , Kazunori Nagai , Takanari Nawata
发明人： Toshiaki Kanada , Kazunori Nagai , Takanari Nawata
IPC分类号： C01B15/029
CPC分类号： C01B15/029
摘要： A process for making hydrogen peroxide by catalytically reacting oxygen with hydrogen in a liquid reaction medium, which comprises(a) filling a reactor with a liquid reaction medium containing a catalyst,(b) dissolving oxygen and hydrogen in the liquid reaction medium by contacting the gases separately and simultaneously with the liquid reaction medium in the reactor,(c) thus forming hydrogen peroxide in the liquid reaction medium containing the catalyst,(d) while maintaining the reactor at such condition that a gaseous phase containing a combination of both oxygen and hydrogen is substantially absent during the reaction, and(e) separating the catalyst from the resulting reaction mixture containing hydrogen peroxide.
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公开(公告)号：US3978158A
公开(公告)日：1976-08-31
申请号：US446077
申请日：1974-02-26
IPC分类号： C08L7/00 , C08L21/00 , C08L25/00 , C08L25/18 , C08L51/00 , C08L51/02 , C08L51/04 , C08L69/00 , C08L67/06
摘要： A thermoplastic resin composition having excellent mechanical and thermal properties as well as excellent moldability comprising a bis(hydroxyaryl)alkanic polycarbonate and a rubber-modified polychlorostyrenic resin prepared by latex-blending a chlorostyrenic graft polymer latex and a chlorostyrenic copolymer latex.
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