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公开(公告)号：US4832723A
公开(公告)日：1989-05-23
申请号：US156052
申请日：1988-02-16
CPC分类号： C03B37/048 , C03C25/146
摘要： A rotary fiberization method and apparatus. Gas and/or liquid may be introduced into the void area produced by a rotary fiberization process. The gas and/or liquid may be used to alter the configuration of the fiber column and to apply desired materials to the fibers.
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公开(公告)号：US4251590A
公开(公告)日：1981-02-17
申请号：US49517
申请日：1979-06-18
CPC分类号： F16L59/028 , B29C70/00 , C04B26/122 , B29K2309/08 , Y10T428/24058 , Y10T428/24995 , Y10T428/31612 , Y10T428/31663 , Y10T442/2992
摘要： This invention relates to pipe insulation useful at relatively high temperatures, e.g., 850.degree. F. Mineral fibers bonded with phenol-formaldehyde resins and conventional anti-punking liquid resin systems have been developed as a means of producing thermal insulation of relatively low density. However, sustained punking of the binders employed caused exothermic reactions whose temperatures fused the low density mineral fibers causing thermal and structural degradation of the insulation. The present invention utilizes a relatively dense layer of fiber glass having a relatively low binder content, bonded with a binder comprising an antipunk phenolic resin and high levels of silane based on the solids content in the resin. An outer layer may surround the dense layer and be constructed with a lower density and a higher binder content.
摘要翻译： 本发明涉及在比较高的温度例如850°F下可用的管道绝缘。已经开发了与酚醛树脂和常规的抗冲击液体树脂体系结合的矿物纤维作为生产相对低密度的隔热材料的手段。 然而，使用的粘合剂的持续冲击引起了放热反应，其温度使低密度矿物纤维熔化导致绝缘体的热和结构退化。 本发明利用具有相对较低粘合剂含量的相对致密的玻璃纤维层，其基于树脂中固体含量的粘合剂与包含止痛酚醛树脂的粘合剂和高水平的硅烷结合。 外层可以围绕致密层并且以较低的密度和较高的粘合剂含量构造。
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