-
公开(公告)号：US4165431A
公开(公告)日：1979-08-21
申请号：US881675
申请日：1978-02-27
申请人： Franz Alfes , Diez Heine , Reinhard Kaiser , Gunter Kolb , Joachim Probst , Franz Weider
发明人： Franz Alfes , Diez Heine , Reinhard Kaiser , Gunter Kolb , Joachim Probst , Franz Weider
CPC分类号： C08F8/22
摘要： A chlorinated colorless polyolefin, preferably a chlorinated colorless isotactic polypropylene, soluble in carbon tetrachloride and having a chlorine content of from 60% to 70% by weight and an average degree of polymerization of from 2000 to 6000, produced by chlorinating polyolefins having a degree of polymerization of from 2000 to 20,000 in suspension or solution or in suspension and solution at 40 to 60.degree. C. in the presence of a halogen transfer agent, a chlorination catalyst and from 0.2 to 0.5% by weight, based on polyolefin, of at least one compound corresponding to the general Formula (I):h.sub.2 n--r--nh>.sub.n H (I)in which R represents the ethylene, propylene or butylene group and n=1-6.
摘要翻译： 氯化无色聚烯烃，优选氯化无色全同立构聚丙烯，其可溶于四氯化碳，氯含量为60〜70重量％，平均聚合度为2000〜6000，通过氯化具有一定程度的聚烯烃 在卤素转移剂，氯化催化剂和基于聚烯烃的0.2至0.5重量％的存在下，在悬浮液或溶液中或悬浮液和溶液中在40至60℃下聚合2000至20,000，至少 对应于通式（I）的一种化合物：
-
2.发明授权Process for isolating pulverulent chlorinated aliphatic polymers from their aliphatic chlorohydrocarbon solutions 失效从其脂族氯代烃溶液中分离出粉状氯化脂族聚合物的方法
公开(公告)号：US4588809A
公开(公告)日：1986-05-13
申请号：US672463
申请日：1984-11-19
CPC分类号： C08F6/12
摘要： The invention relates to an improved process for isolating pulverulent chlorinated aliphatic polymers from their aliphatic chlorohydrocarbon solutions by introducing a mixture of steam and special solvent into said solutions, removing the aliphatic chlorohydrocarbon by steam distillation, and isolating the chlorinated polymer in the customary manner as a solid.The process produces a product which is practically free (.ltoreq.20 ppm) of toxic aliphatic chlorohydrocarbons and can be safely used in paints, adhesives or printing inks.
摘要翻译： 本发明涉及一种通过将蒸汽和特殊溶剂的混合物引入所述溶液中从其脂族氯代烃溶液中分离出粉状氯化脂族聚合物的改进方法，通过蒸汽蒸馏除去脂族氯代烃，并以常规方式将氯化聚合物分离为 固体。 该方法产生实际上是无毒（
-
3.发明授权
公开(公告)号：US4430483A
公开(公告)日：1984-02-07
申请号：US341232
申请日：1982-01-21
摘要： The invention relates to a process for the production of a chlorinated polymer having a chlorine content of from 30 to 70% by weight, which comprises chlorinating a polymer in a chlorinated hydrocarbon solvent, removing the solvent using steam and/or hot water in the presence of at least 1% by weight, based on the chlorinated polymer, of an alkoxylation product of 1 mole of a primary aliphatic alcohol containing at least 8 carbon atoms and at least 1.5 moles of propylene oxide and drying the precipitated chlorinated polymer.
摘要翻译： 本发明涉及生产氯含量为30-70％重量的氯化聚合物的方法，该方法包括在氯代烃溶剂中氯化聚合物，在存在的情况下使用蒸汽和/或热水除去溶剂 至少1重量％，基于氯化聚合物，1摩尔含有至少8个碳原子的伯脂肪醇和至少1.5摩尔环氧丙烷的烷氧基化产物，并干燥沉淀的氯化聚合物。
-
公开(公告)号：US4895930A
公开(公告)日：1990-01-23
申请号：US214010
申请日：1988-06-30
IPC分类号： B01D11/02 , C08G75/0281
CPC分类号： C08G75/0281
摘要： The invention relates to a process for purifying and isolating polyarylene sulphides. In this process polyarylene sulphides are obtained with a particularly low electrolyte content.
摘要翻译： 本发明涉及一种纯化和分离聚亚芳基硫醚的方法。 在该方法中，获得具有特别低的电解质含量的聚亚芳基硫醚。
-
5.发明授权Polyarylamide, their production and their use as absorbers for ultraviolet rays 失效聚芳酰胺，它们的生产及其作为紫外线吸收剂的用途
公开(公告)号：US4238351A
公开(公告)日：1980-12-09
申请号：US675738
申请日：1976-04-12
IPC分类号： C08K5/00 , C07C67/00 , C07C231/00 , C07C231/02 , C07C233/54 , C07C233/56 , C07C233/81 , C08G69/00 , C08G69/44 , C08K5/22 , C08L1/00 , C08L27/00 , C08L67/00 , C08L77/00 , C08L101/00 , C09K3/00 , C09K15/20 , C09K15/22
CPC分类号： C09K15/20 , C08G69/44 , C08L101/00
摘要： Polymers comprising terephthalyl-or oxal arylamide groups represent excellent light stabilizers for synthetic, semi-synthetic and/or naturally occurring organic materials.
摘要翻译： 包含对苯二甲酰基或草酰芳基酰胺基团的聚合物代表用于合成，半合成和/或天然存在的有机材料的优异的光稳定剂。
-
6.发明授权Process for the isolation of polyarylene sulphide from salts contained therein 失效从其中所含的盐分离聚亚芳基硫醚的方法
公开(公告)号：US4734484A
公开(公告)日：1988-03-29
申请号：US912770
申请日：1986-09-26
IPC分类号： C08G75/0281 , C08G75/06 , C08G75/16
CPC分类号： C08G75/0281
摘要： The invention relates to a process for the isolation of polyarylene sulphides, polyarylene sulphides with particularly low electrolyte content being obtained.
摘要翻译： 本发明涉及一种分离聚亚芳基硫醚的方法，获得的电解质含量特别低的聚亚芳基硫醚。
-
公开(公告)号：US5247063A
公开(公告)日：1993-09-21
申请号：US898172
申请日：1992-06-12
IPC分类号： C08G75/02
CPC分类号： C08G75/0281
摘要： This invention relates to a process for the purification of optionally branched polyarylene sulphides (PPS). Polyarylene sulphides which have been purified according to the invention are distinguished by the reduced amount of ash-forming impurities contained in them.
摘要翻译： 本发明涉及纯化任选支化聚亚芳基硫醚（PPS）的方法。 根据本发明纯化的聚亚芳基硫化物的特征在于它们中含有的形成灰分的杂质的量减少。
-
公开(公告)号：US4921935A
公开(公告)日：1990-05-01
申请号：US266502
申请日：1988-11-03
IPC分类号： C08G75/14 , C08G75/025
CPC分类号： C08G75/025
摘要： This invention relates to a process for the preparation of polyarylene sulphides, preferably polyphenylene sulphide (PPS), whose fusion viscosities can be adjusted to specified values, from alkali metal sulphides and polyhalogenated aromatic compounds in a polar solvent in the presence of a ketone or pinacone. The resulting polyarylene sulphides which have specified fusion viscosities are distinguished by high stability of the melt and low chlorine content. They cause little corrosion in the reaction vessels used for their preparation.
摘要翻译： 本发明涉及一种制备聚亚芳基硫醚，优选聚苯硫醚（PPS）的方法，该聚亚芳基硫醚（PPS）的熔融粘度可以由酮或酮酮存在下在极性溶剂中由碱金属硫化物和多卤代芳族化合物调节至规定值 。 所得到的具有特定熔融粘度的聚亚芳基硫化物的特征在于熔体的高稳定性和低氯含量。 它们在用于制备的反应容器中几乎没有腐蚀。
-
公开(公告)号：US4771120A
公开(公告)日：1988-09-13
申请号：US1047
申请日：1987-01-07
IPC分类号： C08G75/0231 , C08G75/0254 , C08G75/06 , C08G75/16
CPC分类号： C08G75/0254 , C08G75/0231
摘要： The invention relates to polyarylene sulphides with melt viscosities settable to defined values. The products are distinguished by high stability of the melt. They are obtained by adding, in the preparation of these polyarylene sulphides, certain phenols as chain terminators to the reaction mixture.
摘要翻译： 本发明涉及熔融粘度可设定为规定值的聚亚芳基硫醚。 产品的特点是熔体的高稳定性。 它们是通过在制备这些聚亚芳基硫醚中将某些酚作为链终止剂加入到反应混合物中而获得的。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.022 秒)
