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1.发明授权Process to obtain a mixture of lower carboxylic mono, di and triesters from raw glycerin 失效从原料甘油中获得低级羧酸单酯，二酯和三酯的混合物的方法公开(公告)号：US08754253B2
公开(公告)日：2014-06-17
申请号：US13382050
申请日：2010-06-29
IPC分类号： C07C67/02
摘要： An process to obtain a mixture of lower carboxylic acid mono, di and triesters, from raw glycerin, a by-product of the process to obtain biodiesel, a transesterification of vegetable raw material with lower alcohols is described. Also described is a process to obtain triacetin or a mixture of mono-, di- and triacetin from that raw glycerin, without prior purification.
摘要翻译： 从生产甘油得到低级羧酸单酯，二酯和三酯的混合物的方法，得到生物柴油的方法的副产物，植物原料与低级醇的酯交换。 还描述了在没有预先纯化的情况下从该甘油获得甘油三乙酸酯或单醋酸甘油酯，甘油三乙酸酯的混合物的方法。
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公开(公告)号：US20140018468A1
公开(公告)日：2014-01-16
申请号：US14001241
申请日：2012-03-20
IPC分类号： B22C1/22
CPC分类号： B22C1/2273 , B22C1/2253 , C08G18/0852 , C08G18/542
摘要： The present invention relates to foundry binder systems forming a curable polyurethane with a catalytically effective amount of a curing catalyst, comprising at least one phenolic resin component comprising at least: a phenolic resin and a solvent of triacetin type and a polyisocyanate component. The invention also relates to foundry mixtures prepared from the binder and an aggregate, to foundry forms such as cores and molds prepared via the no-bake or cold-box processes, and also to the respective processes. The foundry forms obtained by the present invention are especially used for manufacturing metallic components, especially for the casting of metallic components.
摘要翻译： 本发明涉及形成具有催化有效量的固化催化剂的可固化聚氨酯的铸造粘合剂体系，其包含至少一种酚醛树脂组分，其至少包含酚醛树脂和三醋精型溶剂和多异氰酸酯组分。 本发明还涉及由粘合剂和骨料制备的铸造混合物，以及通过无烘烤或冷箱方法制备的铸型和模具等铸造形式，以及相应的方法。 本发明获得的铸造形式特别用于制造金属部件，特别是用于铸造金属部件。
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