-
公开(公告)号:US4774303A
公开(公告)日:1988-09-27
申请号:US8553
申请日:1987-01-29
IPC分类号: C08F2/16 , B29C31/06 , B29C45/18 , C08F2/10 , C08F20/00 , C08F20/06 , C09C1/02 , C09C3/04 , C09C3/10 , C09D17/00 , D21H19/40 , D21H19/58 , C08F2/00
CPC分类号: C09D17/004 , B29C31/068 , B29C45/18 , C08F20/06 , C09C1/021 , C09C3/041 , D21H19/40 , D21H19/58 , B29K2067/00 , C01P2004/62
摘要: Polymers of acrylic acid or methacrylic acid are prepared by polymerizing acrylic acid and/or methacrylic acid at 50.degree.-180.degree. C. in a C.sub.2 -C.sub.6 -alcohol or mixtures thereof with water having a C.sub.2 -C.dwnarw.6.uparw.-alcohol content of not less than 40% by weight in the presence of free radical polymerization initiators and from 0.01 to 5% by weight, based on the monomers used, of inorganic acids of phosphorus in which the phosphorus has an oxidation number of from 1 to 4, or of water-soluble salts thereof, water-soluble --PO(OH).sub.2 -containing compounds and/or water-soluble salts thereof. The polymers thus prepared are effective milling aids and dispersants for pigments for producing aqueous pigment slurries for use in paper-coating compositions.
摘要翻译: 丙烯酸或甲基丙烯酸的聚合物是通过将丙烯酸和/或甲基丙烯酸在50-180℃下在C2-C6-醇或其混合物中与具有C 2 -C 6 - 六醇含量的水 在自由基聚合引发剂存在下,不少于40重量%,以所用单体为基准计,为0.01〜5重量%的磷的氧化数为1〜4的磷的无机酸,或 的水溶性盐,水溶性-PO(OH)2的化合物和/或其水溶性盐。 如此制备的聚合物是用于生产用于纸涂层组合物的水性颜料浆料的颜料的有效的研磨助剂和分散剂。
-
公开(公告)号:US4086850A
公开(公告)日:1978-05-02
申请号:US713824
申请日:1976-08-12
CPC分类号: B30B9/3078 , B30B9/32 , Y10S100/901
摘要: A scrap compactor has a generally parallelepipedal elongated chamber. The top wall of the chamber may be pivoted down to partially crush the scrap, and a lower portion of one of the side walls of the chamber may be pivoted inward to similarly precompress the scrap. After swinging-in of the lower portion of the one wall this wall is swung outwardly and the opposite wall is moved in while remaining parallel to the other wall. Thereafter the fully compacted scrap may be pushed out an outlet hole in one end of the press.
摘要翻译: 废料压实机具有大致平行六面体的细长室。 室的顶壁可以向下枢转以部分地挤压废料,并且室的一个侧壁的下部可以向内枢转以类似地预压缩废料。 在一个壁的下部的摆动之后,该壁向外摆动,并且相对的壁移动,同时保持平行于另一个壁。 此后,完全压实的废料可以从压机的一端被推出出口孔。
-