公开(公告)号：US4657946A

公开(公告)日：1987-04-14

申请号：US755503

申请日：1985-07-16

申请人： Dominic S. Rende ,  Michael D. Breslin

发明人： Dominic S. Rende ,  Michael D. Breslin

IPC分类号： D21H17/15 ,  D21H17/45 ,  B05D3/02 ,  D21D3/00

CPC分类号： D21H17/15 ,  D21H17/455

摘要： Cationically charged water soluble vinyl addition polymers and condensation polymers provide improved emulsification of alkenyl succinic anhydride sizing agents. Sized paper products prepared from alkenyl succinic anhydride emulsions made with the polymers have superior ink holdout.

摘要翻译： 阳离子带电的水溶性乙烯基加成聚合物和缩聚物提供烯基琥珀酸酐施胶剂的改进乳化。 由聚合物制成的烯基琥珀酸酐乳液制备的大量纸制品具有优异的油墨保持性。

公开(公告)号：US4347103A

公开(公告)日：1982-08-31

申请号：US168923

申请日：1980-07-14

申请人： Dominic S. Rende

发明人： Dominic S. Rende

IPC分类号： D21C3/22 ,  D21C3/00 ,  D21C3/06

CPC分类号： D21C3/222

摘要： The addition of catalytic amounts of molybdenum introduced as a water-soluble molybdenum compound to the sulfite-pulping liquors, substantially increases the rate of lignin removal during chip digestion. By the use of this catalyst, the time required to delignify softwood chips in sulfite liquor at a maximum pulping temperature of 135.degree. C. is reduced to approximately 75% of that necessary to remove the same amount of lignin without a catalyst.

摘要翻译： 将催化量的钼作为水溶性钼化合物引入到亚硫酸盐制浆液中，大大增加了芯片消化过程中木质素去除的速率。 通过使用该催化剂，在135℃的最大制浆温度下将亚硫酸盐液体中的软木屑脱木素所需的时间降低到除了不含催化剂的相同量木质素所需的时间的约75％。

公开(公告)号：US4414060A

公开(公告)日：1983-11-08

申请号：US337808

申请日：1982-01-08

申请人： Dominic S. Rende

发明人： Dominic S. Rende

IPC分类号： D21C3/22 ,  D21C3/04 ,  D21C11/02

CPC分类号： D21C3/222

摘要： A process for sulfite pulping of wood of the type which comprises sulfite pulping wood chips in the presence of a catalytic amount of a water-soluble molybdenum containing compound, the improvement which comprises using as the source of water-soluble molybdenum containing compound molybdenum sulfide which is added to the sulfite pulping process at a point whereby it is oxidized to an oxide of molybdenum prior to being added to the chip digester.

摘要翻译： 一种在催化量的水溶性含钼化合物存在下，包括亚硫酸盐制浆木片的亚硫酸盐制浆方法，其改进包括使用水溶性含钼化合物硫化钼的来源 被添加到亚硫酸盐制浆过程中，在其被添加到芯片消化器之前被氧化成钼的氧化物。

公开(公告)号：US4255233A

公开(公告)日：1981-03-10

申请号：US86239

申请日：1979-10-18

申请人： Dominic S. Rende ,  David R. Cosper

发明人： Dominic S. Rende ,  David R. Cosper

IPC分类号： D21C9/10 ,  D21C9/12

CPC分类号： D21C9/1036

摘要： Improved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of 0.05--0.5% based on the weight of the dry fiber of polyacrylic acid and/or its water-soluble salts in the chlorination bleaching stages.

摘要翻译： 通过在氯化漂白阶段中基于聚丙烯酸和/或其水溶性盐的干纤维的重量添加0.05-0.5％来处理纸浆，可以获得提高纸浆强度和化学制浆的亮度。

公开(公告)号：US4244780A

公开(公告)日：1981-01-13

申请号：US94513

申请日：1979-11-15

申请人： Dominic S. Rende ,  David R. Cosper

发明人： Dominic S. Rende ,  David R. Cosper

IPC分类号： D21C9/10 ,  D21C9/12

CPC分类号： D21C9/1036

摘要： Inproved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of 0.05-0.5% based on the weight of the dry fiber of thiourea dioxide in the chlorination or hypochlorite bleaching stages.

摘要翻译： 通过在氯化或次氯酸盐漂白阶段中加入基于硫脲二氧化硫的干纤维重量的0.05-0.5％的纸浆处理纸浆，可获得经过化学处理的纸浆的纸浆强度和亮度。