公开(公告)号：US4759853A

公开(公告)日：1988-07-26

申请号：US66536

申请日：1987-06-26

申请人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

发明人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

IPC分类号： C08L33/20 ,  B01F17/52 ,  C08F4/00 ,  C08F4/40 ,  C08F20/42 ,  C08F20/44 ,  C08F120/44 ,  C08F220/42 ,  C08F220/44 ,  C08L33/00 ,  C08L33/02 ,  C08L33/18 ,  C09K8/04 ,  C09K8/58 ,  C02F1/00

CPC分类号： C08F20/44

摘要： A method of inhibiting scale formation or precipitation in an aqueous alkaline-earth salt solution with an aqueous solution of a hydrolyzed polyacrylonitrile salt made by heating homopolymers and copolymers of acrylonitrile with very low Fikentscher K values of 34-15 and a total content of sulfonate and sulfate end groups, which do not originate from correspondingly substituted comonomers, of 250 to 1,000 milliequivalents per kilogram of polymer, 180 to 900 milliequivalents per kilogram being in the form of sulfonate end groups, and to suitable semi-continuous or continuous precipitation polymerization process for their preparation by means of a redox system in an aqueous medium.

摘要翻译： 一种通过加热丙烯腈的均聚物和共聚物与非常低的Fikentscher K值为34-15而制备的水解聚丙烯腈盐水溶液的水性碱土盐溶液中的结垢或沉淀的方法，以及磺酸盐的总含量和 不相应取代的共聚单体的硫酸酯端基为每千克聚合物250至1,000毫当量，每公斤180至900毫当量为磺酸盐端基，以及合适的半连续或连续沉淀聚合方法 它们通过在水介质中的氧化还原体系制备。

公开(公告)号：US4977225A

公开(公告)日：1990-12-11

申请号：US266244

申请日：1988-10-28

申请人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

发明人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

IPC分类号： C08L33/20 ,  B01F17/52 ,  C08F4/00 ,  C08F4/40 ,  C08F20/42 ,  C08F20/44 ,  C08F120/44 ,  C08F220/42 ,  C08F220/44 ,  C08L33/00 ,  C08L33/02 ,  C08L33/18 ,  C09K8/04 ,  C09K8/58

CPC分类号： C08F20/44

摘要： The invention relates to homopolymers and copolymers of acrylonitrile with very low Fikentscher K values of 34-15 and a total content of sulfonate and sulfate end groups, which do not originate from correspondingly substituted comonomers, of 250 to 1,000 milliequivalents per kilogram of polymer, 180 to 900 milliequivalents per kilogram being in the form of sulfonate end groups, and to suitable semi-continuous or continuous precipitation polymerization processes for their preparation by means of a redox system in an aqueous medium.The resulting polymers can be extruded to shaped articles. In particular, after hydrolysis, they can be used as emulsifiers and deep bore auxiliaries.

公开(公告)号：US4683286A

公开(公告)日：1987-07-28

申请号：US832453

申请日：1986-02-21

申请人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

发明人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

IPC分类号： C08L33/20 ,  B01F17/52 ,  C08F4/00 ,  C08F4/40 ,  C08F20/42 ,  C08F20/44 ,  C08F120/44 ,  C08F220/42 ,  C08F220/44 ,  C08L33/00 ,  C08L33/02 ,  C08L33/18 ,  C09K8/04 ,  C09K8/58 ,  C08F8/12

CPC分类号： C08F20/44

摘要： The invention relates to homopolymers and copolymers of acrylonitrile with very low Fikentscher K values of 34-15 and a total content of sulfonate and sulfate end groups, which do not originate from correspondingly substituted comonomers, of 250 to 1,000 milliequivalents per kilogram of polymer, 180 to 900 milliequivalents per kilogram being in the form of sulfonate end groups, and to suitable semi-continuous or continuous precipitation polymerization processes for their preparation by means of a redox system in an aqueous medium.The resulting polymers can be extruded to shaped articles. In particular, after hydrolysis, they can be used as emulsifiers and deep bore auxiliaries.

摘要翻译： 本发明涉及丙烯腈的均聚物和共聚物，其非常低的Fikentscher K值为34-15，磺酸盐和硫酸酯端基的总含量不是相应取代的共聚单体，每千克聚合物为250至1,000毫当量，180 至900毫当量每千克为磺酸盐端基，以及合适的半连续或连续沉淀聚合方法，用于通过在水介质中的氧化还原体系制备。 所得聚合物可以挤出成型制品。 特别是在水解后，它们可以用作乳化剂和深孔助剂。

公开(公告)号：US4673721A

公开(公告)日：1987-06-16

申请号：US839288

申请日：1986-03-13

申请人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

发明人： Tibor Krakkay ,  Tatjana Poggi ,  Ernst Schubert

IPC分类号： C08L33/20 ,  B01F17/52 ,  C08F4/00 ,  C08F4/40 ,  C08F20/42 ,  C08F20/44 ,  C08F120/44 ,  C08F220/42 ,  C08F220/44 ,  C08L33/00 ,  C08L33/02 ,  C08L33/18 ,  C09K8/04 ,  C09K8/58

CPC分类号： C08F20/44

摘要： The invention relates to homopolymers and copolymers of acrylonitrile with very low Fikentscher K values of 34-15 and a total content of sulfonate and sulfate end groups, which do not originate from correspondingly substituted comonomers, of 250 to 1,000 milliequivalents per kilogram of polymer, 180 to 900 milliequivalents per kilogram being in the form of sulfonate end groups, and to suitable semi-continuous or continuous precipitation polymerization processes for their preparation by means of a redox system in an aqueous medium.The resulting polymers can be extruded to shaped articles. In particular, after hydrolysis, they can be used as emulsifiers and deep bore auxiliaries.

摘要翻译： 本发明涉及丙烯腈的均聚物和共聚物，其非常低的Fikentscher K值为34-15，磺酸盐和硫酸酯端基的总含量不是相应取代的共聚单体，每千克聚合物为250至1,000毫当量，180 至900毫当量每千克为磺酸盐端基，以及合适的半连续或连续沉淀聚合方法，用于通过在水介质中的氧化还原体系制备。 所得聚合物可以挤出成型制品。 特别是在水解后，它们可以用作乳化剂和深孔助剂。

公开(公告)号：US06392033B1

公开(公告)日：2002-05-21

申请号：US09367354

申请日：1999-08-12

申请人： Tatjana Poggi ,  Geza Hidasi

发明人： Tatjana Poggi ,  Geza Hidasi

IPC分类号： C08B900

CPC分类号： C08B9/00

摘要： A process for producing viscose wherein the caustic soda used previously in the alkalization of electron-untreated cellulose can be used in the alkalization of electron-treated cellulosic material, provided the level of dispersed solids in the caustic soda does not exceed 0.16 g/l.

摘要翻译： 生产粘胶的方法，其中先前在电子未处理的纤维素碱化中使用的苛性钠可用于电子处理的纤维素材料的碱化，只要苛性钠中的分散固体的含量不超过0.16g / l。

公开(公告)号：US06538130B1

公开(公告)日：2003-03-25

申请号：US09509036

申请日：2000-03-21

申请人： Klaus Fischer ,  Heinzhorst Möbius ,  Tatjana Poggi

发明人： Klaus Fischer ,  Heinzhorst Möbius ,  Tatjana Poggi

IPC分类号： C07H100

CPC分类号： D01F2/06 ,  C08B9/00

摘要： In the manufacture of viscose, and an elongate cellulose member such as standard viscose rayon fibre, with reduced alkali ratio from dissolving-grade cellulose such as wood pulp by irradiation with a high energy beam at a dose of 1-30 kGy, steeping in aqueous sodium hydroxide, pressing to form alkali cellulose, xanthating to form cellulose xanthate, dissolving in aqueous liquor to form viscose and (when elongate cellulose members are required) extruding through a die into an acid bath for coagulation and regeneration to form an elongate cellulose member which is then washed and dried, viscose filtration can be improved by including in the dissolving liquor for the cellulose xanthate an amount of from 200 to 10000 ppm by weight of a salt which consists of alkali metal or ammonium cations and anions of a strong acid.

摘要翻译： 在制造粘胶纤维和细长纤维素部件如标准粘胶人造丝纤维时，通过以1-30kGy的剂量照射高能量束，从溶解级纤维素如木浆中降低碱的比例，浸渍在水性 氢氧化钠，压制形成碱性纤维素，黄原酸形成纤维素黄原酸酯，溶解在含水液体中以形成粘胶纤维，（当需要细长的纤维素部件时）通过模头挤出到酸浴中用于凝结和再生以形成细长的纤维素部件， 然后洗涤和干燥，可以通过在纤维素黄原酸盐的溶解液中包含由碱金属或铵阳离子和强酸阴离子组成的盐的重量的200至10000ppm的量来改善粘胶过滤。