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    • 10. 发明授权
    • Polyaldehyde/polyacetal compositions
    • 聚醛/聚缩醛组合物
    • US4605718A
    • 1986-08-12
    • US685428
    • 1984-12-24
    • Roger H. JansmaKaren R. Sandberg
    • Roger H. JansmaKaren R. Sandberg
    • C07D319/06C08F20/28C08F20/36C08F20/58C08F20/60D21H17/37D21H17/38D21H17/45C08F20/34
    • C08F20/36C07D319/06C08F20/28C08F20/58C08F20/60D21H17/37D21H17/38D21H17/455
    • Water-soluble monomers and water-soluble polymers derived therefrom are disclosed. These materials can be used with other vinyl monomers to form water-soluble polymers which are reactive with cellulosic substrates to obtain drastically improved strength, particularly when applied in paper manufacture. The polymers contain at least two mole percent of a monomer represented by the chemical structure: ##STR1## wherein R is H, CH.sub.3, or C.sub.2 H.sub.5 ; andA is O, or N(R.sub.1); andB is CH.sub.2, CH.sub.2 CH.sub.2 O, ##STR2## and D is ##STR3## and wherein R.sub.1 is H, CH.sub.3, C.sub.2 H.sub.5, (CH.sub.2 CH.sub.2 O).sub.n H, or (B).sub.q D, and wherein q is from 1-6, except when B contains nitrogen in which case q is always one; and wherein R.sub.2 is H, CH.sub.3, C.sub.2 H.sub.5, or (CH.sub.2 CH.sub.2 O).sub.n H; and wherein R.sub.4 and R.sub.5 may be the same or different and are, for each individual occurrence, H, CH.sub.3, C.sub.2 H.sub.5 ; and wherein Z is from the group Cl, Br, I, NO.sub.3, SO.sub.4 and the like; and wherein m ranges from 0-6; and wherein n is from 1-6.
    • 公开了由其衍生的水溶性单体和水溶性聚合物。 这些材料可与其它乙烯基单体一起使用以形成水溶性聚合物,其与纤维素基材反应以获得显着提高的强度,特别是当用于造纸时。 聚合物含有至少2摩尔%的由化学结构表示的单体:其中R是H,CH 3或C 2 H 5; 并且A是O或N(R 1); 并且B为CH 2,CH 2 CH 2 O,且为D为< IMAGE>其中R 1为H,CH 3,C 2 H 5,(CH 2 CH 2 O)n H或(B)q D,其中q为1-6, B含有氮,其中q总是1; 并且其中R 2是H,CH 3,C 2 H 5或(CH 2 CH 2 O)n H; 并且其中R 4和R 5可以相同或不同,并且对于每个个体出现,H,CH 3,C 2 H 5; 并且其中Z为Cl,Br,I,NO 3,SO 4等; 其中m为0-6; 并且其中n为1-6。