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    • 5. 发明授权
    • Production of striking surfaces for matches
    • 生产打击表面的比赛
    • US4315961A
    • 1982-02-16
    • US167219
    • 1980-07-09
    • Wilhelm AdamHannsjorg UlrichFranz-Josef DanyGerd Kalteyer
    • Wilhelm AdamHannsjorg UlrichFranz-Josef DanyGerd Kalteyer
    • B24D3/28C06F3/08B05D3/02
    • B24D3/28C06F3/08Y10T428/3179Y10T428/31866
    • The invention relates to a process for making striking surfaces wherein red phosphorus, abrasive agents, and binders which are in the form of aqueous urea/formaldehyde or melamine/formaldehyde-condensates, are made into an aqueous suspension which is applied on to a striking surface substrate. More particularly, the suspension, based on the solid matter content of the condensates used as binder, is admixed with 5 to 20 weight %, calculated as solid matter, of an agent cross-linking the amine resin, the cross-linking agent being a polyester or copolymer produced by subjecting an acryl and/or methacryl ester to copolymerization with vinyl acetate in a ratio by weight of 1:9 to 9:1. A pH-value within the range 6.5 to 8.0 is established in the mixture, in the event of the cross-linking agent being a copolymer, or a pH-value within the range 7 to 11 is established, in the event of the cross-linking agent being a polyester.
    • 本发明涉及一种制造冲击表面的方法,其中以尿素/甲醛水溶液或三聚氰胺/甲醛 - 缩合物的形式将红磷,研磨剂和粘合剂制成水性悬浮液, 基质。 更具体地,基于用作粘合剂的冷凝物的固体物质含量的悬浮液与作为固体物质的5至20重量%的交联胺树脂的试剂混合,交联剂为 通过使丙烯酰基和/或甲基丙烯酸酯与乙酸乙烯酯以1:9至9:1的重量比进行共聚而制备的聚酯或共聚物。 在交联剂为共聚物的情况下,或建立了7〜11的pH值的情况下,在混合物中建立pH值为6.5〜8.0的pH值, 交联剂为聚酯。