Paper size based on finely divided aqueous dispersions
    1.
    发明授权
    Paper size based on finely divided aqueous dispersions 失效
    纸张尺寸基于细分的水分散体

    公开(公告)号:US4855343A

    公开(公告)日:1989-08-08

    申请号:US74031

    申请日:1987-07-16

    摘要: Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric, saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers by an emulsion polymerization method in 100 parts by weight of an aqueous solution of from 1.7 to 25% by weight of a degraded starch having a viscosity .eta..sub.i of from 0.12 to 0.50 dl/g, at from 40.degree. to 100.degree. C. in the presence of a peroxide-containing initiator.

    摘要翻译: 纸的尺寸是基于细分的共聚物水分散体,其可通过共聚合10至56重量份的(a)20至65重量%的(甲基)丙烯腈的单体混合物,(b) 35至80重量%的一种或多种一元饱和C 3 -C 8醇的丙烯酸酯和(c)0至10重量%的其它烯属不饱和可共聚单体通过乳液聚合法在100重量份的水溶液 在含过氧化物的引发剂的存在下,在40至100℃下,粘度等于或小于等于0.12至0.50dl / g的降解淀粉的1.7至25重量%的溶液。

    Sizing agents for paper based on finely divided aqueous dispersions
    3.
    发明授权
    Sizing agents for paper based on finely divided aqueous dispersions 失效
    基于细分散水分散体的纸张上浆剂

    公开(公告)号:US4835212A

    公开(公告)日:1989-05-30

    申请号:US146193

    申请日:1988-01-20

    摘要: Sizing agents for paper are based on finely divided aqueous dispersions of copolymers obtainable by copolymerizing from 40 to 140 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers,the weight percentages (a), (b) and (c) always adding up to 100, in the manner of an emulsion polymerization in 100 parts by weight of an aqueous solution containing in solution from 2.7 to 15% by weight of a degraded starch having a viscosity n.sub.i from 0.04 to less than 0.12 dl/g at from 40.degree. to 100.degree. C. in the presence of a peroxide initiator.

    摘要翻译: 用于纸张的上浆剂是基于通过共聚合40至140重量份的(a)20至65重量%的(甲基)丙烯腈,(b)从35至 80重量%的一种或多种一元饱和C 3 -C 8醇的丙烯酸酯和(c)0至10重量%的其它烯属不饱和可共聚单体,重量百分比(a),(b)和(c)总是 以100重量份的含有2.7至15重量%的粘度为0.04至小于0.12dl / g的降解淀粉的溶液为100重量份的水溶液,以100重量份的浓度加入至100, 在过氧化物引发剂的存在下,在40℃至100℃。

    Manufacture of shear-resistant aqueous copolymer emulsions
    4.
    发明授权
    Manufacture of shear-resistant aqueous copolymer emulsions 失效
    抗剪水性共聚物乳液的制造

    公开(公告)号:US4051093A

    公开(公告)日:1977-09-27

    申请号:US626749

    申请日:1975-10-29

    摘要: Shear-resistant aqueous copolymer emulsions which can be used for sizing paper are manufactured by first copolymerizing, in the aqueous phase of an aqueous emulsion, using conventional polymerization initiators which form free radicals, (A) from 0.5 to 15 per cent by weight of monomers containing a polymerizable C.dbd.C bond and at least one carboxyl and/or sulfonic acid or phosphate or phosphite group with (B) from 5 to 30 per cent by weight of monomers containing a C.dbd.C bond and a tertiary or quaternary amino group, or a nitrogen-containing heterocyclic group, and then adding, while continuing the copolymerization, (C) from 0 to 94.5 per cent by weight of styrene and/or acrylonitrile and (D) from 0 to 94.5 per cent by weight of acrylic or methacrylic acid esters of alkanols of 1 to 8 carbon atoms as well as (E) from 0 to 30 per cent by weight of further olefinically unsaturated monomers, and completing the polymerization, the pH during the polymerization being less than 7 and the amount of monomers (C) and (D) together being at least 25 per cent by weight.

    摘要翻译: 可以用于上浆纸的抗剪切水性共聚物乳液通过首先在水性乳液的水相中使用常规的形成自由基的聚合引发剂共聚制备(A)0.5至15重量%的单体 含有可聚合的C = C键和至少一个羧酸和/或磺酸或磷酸酯或亚磷酸酯基团与(B)5-30重量%的含有C = C键和叔或季氨基的单体, 或含氮杂环基,然后在继续共聚的同时加入(C)0至94.5重量%的苯乙烯和/或丙烯腈,和(D)0至94.5重量%的丙烯酸或甲基丙烯酸 1至8个碳原子的链烷醇的酸酯以及(E)0-30重量%的其它烯属不饱和单体,并且完成聚合,聚合期间的pH小于7, f单体(C)和(D)一起为至少25重量%。

    Process for surface sizing paper
    5.
    发明授权
    Process for surface sizing paper 失效
    表面施胶纸的工艺

    公开(公告)号:US3983268A

    公开(公告)日:1976-09-28

    申请号:US522631

    申请日:1974-11-11

    摘要: Process for the manufacture of surface-sized papers by impregnating a paper with a solution containing a water-soluble salt of a random polymer based on .alpha.-olefins and ethylenically unsaturated acids and a compound of the formula: ##EQU1## wherein R is alkyl, aryl or a radical of the formula: ##EQU2## and R.sup.1 and R.sup.2 each independently denotes H, R or a radical of the formula:R -- O-- CH.sub.2 --and drying the impregnated paper. Very well sized papers are obtained which show alkali resistance and filler compatibility.

    摘要翻译: 通过用包含基于α-烯烃和烯键式不饱和酸的无规聚合物的水溶性盐的溶液浸渍纸而制备表面尺寸纸的方法和下式化合物:R1R-CO-N ANGLE R2 其中R是烷基,芳基或下式的基团:R1 ANGLEN-R2和R1和R2各自独立地表示H,R或下式的基团: