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1.发明授权Method of preparing closed cell phenol-aldehyde foam and the closed cell foam thus prepared 失效制备闭孔酚醛泡沫和如此制备的闭孔泡沫的方法
公开(公告)号：US4396563A
公开(公告)日：1983-08-02
申请号：US297074
申请日：1981-08-27
申请人： Frederick E. Gusmer
发明人： Frederick E. Gusmer
CPC分类号： C08J9/12 , C08J2361/06 , Y10S264/02 , Y10S264/13
摘要： Closed cell phenol-aldehyde foam is prepared by a method which includes a novel frothing and curing technique. An admixture containing a liquid phenol-aldehyde resole resin, a volatile blowing agent, and a surfactant is frothed to produce a stable froth containing closed cells. The cell walls are formed of the liquid resole resin and the closed cells are expanded by the blowing agent in gaseous phase. The froth is formed into an uncured shape and the liquid resole resin is cured to the solid state in the presence of an acid catalyst to produce cured closed cell foam. The internal temperature throughout the shape during curing is above the boiling point of the blowing agent but less than 212.degree. F., and is sufficiently low to prevent further expansion of the shape in an amount to rupture the closed cell walls and thereby form an open cell structure. The liquid resole resin has a sufficiently low exothermic heat of reaction and the acid catalyst is present in an amount whereby the internal temperature of the shape during curing is less than 212.degree. F. and within the aforesaid limits. The improved closed cell foam thus prepared is also provided.
摘要翻译： 闭孔酚醛泡沫通过包括新型起泡和固化技术的方法制备。 将含有液体酚醛树脂树脂，挥发性发泡剂和表面活性剂的混合物发泡以产生包含闭孔的稳定的泡沫。 细胞壁由液体树脂树脂形成，闭孔由发泡剂在气相中膨胀。 泡沫形成未固化的形状，并且在酸催化剂存在下将液体树脂树脂固化成固态，以产生固化的闭孔泡沫体。 固化过程中整个形状的内部温度高于发泡剂的沸点但小于212°F，并且足够低以防止形状的进一步膨胀，使破裂的细胞壁破裂，从而形成开放的 细胞结构。 液体树脂树脂具有足够低的放热反应热，酸催化剂的存在量是固化过程中形状的内部温度低于212°F并处于上述限度内。 还提供了如此制备的改进的闭孔泡沫。
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2.发明授权Method of preparing closed cell phenol-aldehyde foam and the closed cell foam thus prepared 失效制备闭孔酚醛泡沫和如此制备的闭孔泡沫的方法
公开(公告)号：US4303758A
公开(公告)日：1981-12-01
申请号：US694065
申请日：1976-06-07
申请人： Frederick E. Gusmer
发明人： Frederick E. Gusmer
CPC分类号： C08J9/12 , C08J2361/06 , Y10S264/02
摘要： Closed cell phenol-aldehyde foam is prepared by a method which includes a novel frothing and curing technique. An admixture containing a liquid phenolaldehyde resole resin, a volatile blowing agent, and a surfactant is frothed to produce a stable froth containing closed cells. The cell walls are formed of the liquid resole resin and the closed cells are expanded by the blowing agent in gaseous phase. The froth is formed into an uncured shape and the liquid resole resin is cured to the solid state in the presence of an acid catalyst to produce cured closed cell foam. The internal temperature throughout the shape during curing is above the boiling point of the blowing agent but less than 212.degree. F., and is sufficiently low to prevent further expansion of the shape in an amount to rupture the closed cell walls and thereby form an open cell structure. The liquid resole resin has a sufficiently low exothermic heat of reaction and the acid catalyst is present in an amount whereby the internal temperature of the shape during curing is less than 212.degree. F. and within the aforesaid limits. The improved closed cell foam thus prepared is also provided.
摘要翻译： 闭孔酚醛泡沫通过包括新型起泡和固化技术的方法制备。 加入含有液体苯酚甲醛树脂树脂，挥发性发泡剂和表面活性剂的混合物以产生包含闭孔的稳定的泡沫。 细胞壁由液体树脂树脂形成，闭孔由发泡剂在气相中膨胀。 泡沫形成未固化的形状，并且在酸催化剂存在下将液体树脂树脂固化成固态，以产生固化的闭孔泡沫体。 固化过程中整个形状的内部温度高于发泡剂的沸点但小于212°F，并且足够低以防止形状的进一步膨胀，使破裂的细胞壁破裂，从而形成开放的 细胞结构。 液体树脂树脂具有足够低的放热反应热，酸催化剂的存在量是固化过程中形状的内部温度低于212°F并处于上述限度内。 还提供了如此制备的改进的闭孔泡沫。
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公开(公告)号：US3627275A
公开(公告)日：1971-12-14
申请号：US3627275D
申请日：1970-05-13
申请人： FREDERICK E GUSMER
发明人： GUSMER FREDERICK E
CPC分类号： B29B7/7433 , G05D11/132 , Y10S264/05
摘要： A low-boiling foaming agent such as dichlorodifluoromethane is added to one of the reactive liquids of a system for forming a foam such as polyurethane foam, by pumping the reactive components and the foaming agent to elevated pressure in three separate pumps that are mechanically linked so as to maintain a fixed delivery ratio to each other, then mixing the foaming agent with one of the liquids, and finally mixing that latter mixture with the other reactive liquid and ejecting a single stream of material that foams on a substrate and then cures.
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4.发明授权Feeder for apparatus for ejecting a mixture of a plurality of liquids, with heated hoses 失效用于喷射多个液体的混合物的设备的加料器，具有加热软管
公开(公告)号：US4154368A
公开(公告)日：1979-05-15
申请号：US832523
申请日：1977-09-12
CPC分类号： B29B7/7438 , B05B12/1418 , B05B7/0018 , B05B7/32 , F04B1/20 , F04B53/164 , F05C2225/04 , F05C2253/12 , Y10S60/911
摘要： A feeder for apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a pair of swash plate proportioning pumps one individual to each of the liquids, e.g. resin and isocyanate, each proportioning pump being fed by a gear pump from a supply of the respective liquid. Seepage along the drive shafts of the isocyanate pumps is continuously removed by bathing them in a recirculating stream of flushing agent. The swash plate and gear pumps and flushing agent pump are all driven by a single motor from a common chain drive. The liquids are heated during passage through separate hoses to a common dispensing head or gun, by immersed coil electric resistance heaters extending lengthwise freely within the hoses. A novel control system is provided for the hose heater circuit, the adequacy of the liquid supply and other operating conditions.
摘要翻译： 用于喷射液体混合物的装置的进料器，例如 聚氨酯泡沫包括一对斜盘配比泵，一个单独的每个液体，例如， 树脂和异氰酸酯，每个配比泵由齿轮泵从相应液体的供应供给。 沿着异氰酸酯泵的驱动轴的渗漏通过将它们洗涤在循环的冲洗流中而被连续地去除。 旋转斜盘和齿轮泵和冲洗剂泵都由单个电机从普通的链条驱动器驱动。 液体在通过单独的软管通过共同的分配头或枪时被加热，通过浸入的线圈电阻加热器在软管内自由延伸。 为软管加热器电路提供了一种新颖的控制系统，液体供应的充足性和其他操作条件。
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5.发明授权
公开(公告)号：US4199303A
公开(公告)日：1980-04-22
申请号：US874642
申请日：1978-02-02
CPC分类号： B29B7/7438 , B05B12/1418 , B05B7/0018 , B05B7/32 , F04B1/20 , F04B53/164 , F05C2225/04 , F05C2253/12 , Y10T137/2516 , Y10T137/2531
摘要： A feeder for apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a pair of swash plate proportioning pumps one individual to each of the liquids, e.g. resin and isocyanate, each proportioning pump being fed by a gear pump from a supply of the respective liquid. Seepage along the drive shafts of the isocyanate pumps is continuously removed by bathing them in a recirculating stream of flushing agent. The swash plate and gear pumps and flushing agent pump are all driven by a single motor from a common chain drive. The liquids are heated during passage through separate hoses to a common dispensing head or gun, by immersed coil electric resistance heaters extending lengthwise freely within the hoses. A novel control system is provided for the hose heater circuit, the adequacy of the liquid supply and other operating conditions.
摘要翻译： 用于喷射液体混合物的装置的进料器，例如 聚氨酯泡沫包括一对斜盘配比泵，一个单独的每个液体，例如， 树脂和异氰酸酯，每个配比泵由齿轮泵从相应液体的供应供给。 沿着异氰酸酯泵的驱动轴的渗漏通过将它们洗涤在循环的冲洗流中而被连续地去除。 旋转斜盘和齿轮泵和冲洗剂泵都由单个电机从普通的链条驱动器驱动。 液体在通过单独的软管通过共同的分配头或枪时被加热，通过浸入的线圈电阻加热器在软管内自由延伸。 为软管加热器电路提供了一种新颖的控制系统，液体供应的充足性和其他操作条件。
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6.发明授权
公开(公告)号：US4131395A
公开(公告)日：1978-12-26
申请号：US727981
申请日：1976-09-29
CPC分类号： B29B7/7438 , B05B12/1418 , B05B7/0018 , B05B7/32 , F04B1/20 , F04B53/164 , F05C2225/04 , F05C2253/12 , Y10S60/911
摘要： A feeder for apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a pair of swash plate proportioning pumps one individual to each of the liquids, e.g. resin and isocyanate, each proportioning pump being fed by a gear pump from a supply of the respective liquid. Seepage along the drive shafts of the isocyanate pumps is continuously removed by bathing them in a recirculating stream of flushing agent. The swash plate and gear pumps and flushing agent pump are all driven by a single motor from a common chain drive. The liquids are heated during passage through separate hoses to a common dispensing head or gun, by immersed coil electric resistance heaters extending lengthwise freely within the hoses. A novel control system is provided for the hose heater circuit, the adequacy of the liquid supply and other operating conditions.
摘要翻译： 用于喷射液体混合物的装置的进料器，例如 聚氨酯泡沫包括一对斜盘配比泵，一个单独的每个液体，例如， 树脂和异氰酸酯，每个配比泵由齿轮泵从相应液体的供应供给。 沿着异氰酸酯泵的驱动轴的渗漏通过将它们洗涤在循环的冲洗流中而被连续地去除。 旋转斜盘和齿轮泵和冲洗剂泵都由单个电机从普通的链条驱动器驱动。 液体在通过单独的软管通过共同的分配头或枪时被加热，通过浸入的线圈电阻加热器在软管内自由延伸。 为软管加热器电路提供了一种新颖的控制系统，液体供应的充足性和其他操作条件。
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7.发明授权Feeder for apparatus for ejecting urethane foam formed by the mixture of resin and isocyanate with flushing liquid 失效用于喷射由树脂和异氰酸酯的混合物形成的聚氨酯泡沫的装置的进料器与冲洗液
公开(公告)号：US4170440A
公开(公告)日：1979-10-09
申请号：US832522
申请日：1977-09-12
CPC分类号： F04B53/164 , B05B12/1418 , B05B7/0018 , B05B7/32 , B29B7/7447 , F04B1/20 , F05C2225/04 , F05C2253/12 , Y10S277/93 , Y10T137/4245 , Y10T137/5762
摘要： A feeder for apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a pair of swash plate proportioning pumps one individual to each of the liquids, e.g. resin and isocyanate, each proportioning pump being fed by a gear pump from a supply of the respective liquid. Seepage along the drive shafts of the isocyanate pumps is continuously removed by bathing them in a recirculating stream of flushing agent. The swash plate and gear pumps and flushing agent pump are all driven by a single motor from a common chain drive. The liquids are heated during passage through separate hoses to a common dispensing head or gun, by immersed coil electric resistance heaters extending lengthwise freely within the hoses. A novel control system is provided for the hose heater circuit, the adequacy of the liquid supply and other operating conditions.
摘要翻译： 用于喷射液体混合物的装置的进料器，例如 聚氨酯泡沫包括一对斜盘配比泵，一个单独的每个液体，例如， 树脂和异氰酸酯，每个配比泵由齿轮泵从相应液体的供应供给。 沿着异氰酸酯泵的驱动轴的渗漏通过将它们洗涤在循环的冲洗流中而被连续地去除。 旋转斜盘和齿轮泵和冲洗剂泵都由单个电机从普通的链条驱动器驱动。 液体在通过单独的软管通过共同的分配头或枪时被加热，通过浸入的线圈电阻加热器在软管内自由延伸。 为软管加热器电路提供了一种新颖的控制系统，液体供应的充足性和其他操作条件。
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公开(公告)号：USRE29665E
公开(公告)日：1978-06-13
申请号：US771810
申请日：1977-02-24
IPC分类号： B29B7/00 , B01F5/18 , B05B7/04 , B05B15/02 , B29B7/32 , B29B7/58 , B29B7/74 , B29B7/76 , B29B7/94 , B29B9/00 , B29C39/00 , B29C39/02 , B29C39/24
CPC分类号： B05B15/025 , B29B7/7438 , B29B7/7678
摘要： Apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a cylindrical chamber into which the liquids are separately introduced under pressure and mixed and ejected from the open end of the chamber. A reciprocable plunger alternately exposes the inlets in its rear portion and seals the inlets from each other and purges the chamber in its forward position. The inlets are axially spaced apart and separated from each other by a throat that has interference fit with the plunger in the forward position of the plunger, the plunger having for this purpose an elastic deformable surface.
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