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公开(公告)号:US4003173A
公开(公告)日:1977-01-18
申请号:US617353
申请日:1975-09-29
CPC分类号: B29D22/003 , B65D90/029 , F16L9/127
摘要: We have found that if we add a polyhydric phenolic compound such as resorcinol to monohydric phenolic resin/cement systems, we can shorten the gel time sufficiently to use the systems in producing walls. The walls generally are cylindrical and serve to confine a liquid. These systems are especially good for producing large diameter, continuous pipe.
摘要翻译: 我们已经发现,如果我们在一羟基酚醛树脂/水泥体系中加入间苯二酚等多羟基酚类化合物,我们可以缩短凝胶时间,足以使用生产墙壁的系统。 壁通常是圆柱形的并且用于限制液体。 这些系统特别适用于生产大直径连续管道。
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公开(公告)号:US4097568A
公开(公告)日:1978-06-27
申请号:US719013
申请日:1976-08-30
CPC分类号: B29D22/003 , B65D90/029 , F16L9/127
摘要: We have found that if we add a polyhydric phenolic compound such as resorcinol to monohydric phenolic resin/cement systems, we can shorten the gel time sufficiently to use the systems in producing walls. The walls generally are cylindrical and serve to confine a liquid. These systems are especially good for producing large diameter, continuous pipe.
摘要翻译: 我们已经发现,如果我们在一羟基酚醛树脂/水泥体系中加入间苯二酚等多羟基酚类化合物,我们可以缩短凝胶时间,足以使用生产墙壁的系统。 壁通常是圆柱形的并且用于限制液体。 这些系统特别适用于生产大直径连续管道。
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