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公开(公告)号:US4537941A
公开(公告)日:1985-08-27
申请号:US644949
申请日:1984-08-28
CPC分类号: C09J161/14 , C08G16/0293 , C08G8/28 , C08L97/02
摘要: An improved modified phenol-formaldehyde resin, and a process for its preparation, which contains lignosulfonates is described. Typically, the lignosulfonates are in the form of black liquor. These resins are made by including with the phenol a small amount of potassium ferricyanide. Unlike the known processes utilizing black liquors and the like, this process appears to be far less susceptible to the inherent variability of these liquors. These resins can be easily converted into a solid by spray drying, and find use as adhesives, for example in board products.
摘要翻译: 描述了改进的改性酚醛树脂及其制备方法,其中含有木素磺酸盐。 通常,木质素磺酸盐是黑液的形式。 这些树脂通过与苯酚一起包含少量的铁氰化钾来制备。 与使用黑液等的已知方法不同,该方法似乎不太易受这些液体的固有变异性的影响。 这些树脂可以通过喷雾干燥容易地转化成固体,并且可以用作粘合剂,例如在板产品中。
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公开(公告)号:US4417004A
公开(公告)日:1983-11-22
申请号:US100378
申请日:1979-12-05
申请人: Krishan K. Sudan , Antoine Berchem
发明人: Krishan K. Sudan , Antoine Berchem
IPC分类号: C08G8/10 , C08G14/06 , C08G14/08 , C08J9/14 , C08L61/06 , C08G8/00 , C08G14/04 , C08G65/38 , C08J9/04
CPC分类号: C08J9/147 , C08G14/06 , C08G14/08 , C08G8/10 , C08L61/06 , C08J2361/00 , C08J2361/34
摘要: A two-part pack, and method for its preparation, from which a phenol-formaldehyde resin foam may be prepared, which system comprises in the first part of the pack a phenol-formaldehyde resin, a blowing agent which is an inert, low boiling liquid, an effective amount of a nitrogenous modifier capable of permitting dispersion of the blowing agent in the resin, and a surfactant; and in the second part of the pack an acid catalyst system dispersed in a liquid polyhydroxy compound, in a weight ratio of polyhydroxy compound to acid catalyst of at least 1:1. These two-part packs enable simpler handling and placement techniques being shelf storable, compared to the known shelf storable systems which involve three, or more, components.
摘要翻译: 一种两部分包装及其制备方法,可从中制备苯酚 - 甲醛树脂泡沫,该系统在包装的第一部分中包含酚醛树脂,发泡剂为惰性低沸点 液体,有效量的能够使发泡剂分散在树脂中的含氮改性剂和表面活性剂; 并且在第二部分中,以多羟基化合物与酸催化剂的重量比为至少1:1的分散在液体多羟基化合物中的酸催化剂体系。 与具有三个或更多个部件的已知的货架可存储系统相比,这两个部件的包装使得能够更容易地存储可更容易的处理和放置技术。
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公开(公告)号:US4219623A
公开(公告)日:1980-08-26
申请号:US919972
申请日:1978-06-28
申请人: Krishan K. Sudan , Antoine Berchem
发明人: Krishan K. Sudan , Antoine Berchem
CPC分类号: C08J9/147 , C08G14/06 , C08G14/08 , C08G8/10 , C08L61/06 , C08J2361/00 , C08J2361/34
摘要: A two component system, and method for its preparation, from which a phenol-formaldehyde resin foam may be prepared, which system comprises in a first component a phenol-formaldehyde resin, a blowing agent which is an inert, low boiling liquid, an effective amount of a nitrogenous modifier capable of permitting dispersion of the blowing agent in the resin, and a surfactant; and in a second component an acid catalyst system dispersed in a liquid polyhydroxy compound, in a weight ratio of acid catalyst to polyhydroxy compound of at least 1:1. These systems enable simpler handling and placement techniques being shelf storable, compared to the known shelf storable systems which involve three, or more, components.
摘要翻译: 一种双组分体系及其制备方法,可从其制备苯酚 - 甲醛树脂泡沫体,该体系包含第一组分中的酚醛树脂,发泡剂,惰性低沸点液体,有效 能够使发泡剂在树脂中分散的含氮改性剂的量和表面活性剂; 并且在第二组分中,分散在液体多羟基化合物中的酸催化剂体系,酸催化剂与多羟基化合物的重量比为至少1:1。 与涉及三个或更多个组件的已知的可储存系统相比,这些系统使得能够更容易地存储可处理和放置技术。
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公开(公告)号:US4324747A
公开(公告)日:1982-04-13
申请号:US137501
申请日:1980-04-04
申请人: Krishan K. Sudan , Antoine Berchem
发明人: Krishan K. Sudan , Antoine Berchem
IPC分类号: C08L61/00 , C08G8/28 , C08L61/04 , C08L61/10 , C08L61/14 , C09J161/00 , B01J2/02 , C08H5/02 , C08J3/12
摘要: Modified phenol-formaldehyde resins, and processes for their preparation, are described wherein board or paper pulping process waste liquor is used as the modifier. The resins may contain, based on solids contents of both resin and waste liquor, from 1:10 to 10:1 parts by weight. These resins are cheaper than conventional resins and also use the waste-liquor without any purification step.
摘要翻译: 描述了改性酚醛树脂及其制备方法,其中使用板或纸制浆工艺废液作为改性剂。 基于树脂和废液的固体含量,树脂可以含有1:10至10:1重量份。 这些树脂比常规树脂便宜,并且在没有任何纯化步骤的情况下也使用废液。
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公开(公告)号:US4098770A
公开(公告)日:1978-07-04
申请号:US723250
申请日:1976-09-15
IPC分类号: C08G8/08 , C08G8/28 , C08G8/38 , C08J3/12 , C08L3/00 , C08L61/06 , C08L97/00 , C08G4/00 , C08G8/10
摘要: A method of preparing a modified phenol-formaldehyde resin in solid particulate form comprising reacting together, in an aqueous medium, phenol and formaldehyde, in a ratio of 1.0 mole phenol to between 1.8 and 3.5 moles of formaldehyde, in the presence of between 0.1 and 1.0 moles of a basic catalyst; continuing this reaction until a desired viscosity is reached; modifying the reaction system by adding thereto between 0 and 30%, based on the weight of phenol originally taken of a non-phenolic polyhydroxy compound; spray drying the thus modified liquid resin in a pressure nozzle drier, and chilling the spray dried particulate solid. These solid resins are redispersible in water and stable on storage, compared to the known aqueous, equivalent, systems.
摘要翻译: 一种制备固体颗粒形式的改性酚醛树脂的方法,包括在水性介质中以1.0摩尔苯酚与1.8至3.5摩尔甲醛的比例,在0.1至 1.0摩尔碱性催化剂; 继续该反应直到达到所需的粘度; 基于最初取自非酚多羟基化合物的苯酚的重量,通过加入其中0至30%来改性反应体系; 在压力喷嘴干燥器中喷雾干燥由此改性的液体树脂,并冷却喷雾干燥的颗粒固体。 与已知的水溶液,等效体系相比,这些固体树脂可再分散在水中并在储存时稳定。
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