公开(公告)号：US4719277A

公开(公告)日：1988-01-12

申请号：US396688

申请日：1982-07-09

申请人： Joachim Behnke ,  Christoph Josefiak

发明人： Joachim Behnke ,  Christoph Josefiak

IPC分类号： C08G18/00 ,  A61L2/02 ,  B01D71/54 ,  C08G18/22 ,  C08G18/65 ,  C08G18/66 ,  C08J5/18 ,  C08G18/08 ,  C08G18/18

CPC分类号： B01D71/54 ,  A61L2/022 ,  C08G18/225 ,  C08G18/6674

摘要： In a process for the production of linear segmented polyurethane by simultaneous reaction of macrodiols, low-molecular diols as chain-lengthener and aromatic diisocyanate, in a solvent in the presence of catalyst, and in the presence of catalytic amounts of a magnesium or calcium salt, an aromatic carboxylic acid macrodiol, monomeric, lower-molecular diol and aromatic diisocyanate are reacted, the macrodiol being used in such amounts as to adjust in the prepared polyurethane a weight ratio of soft segment to hard segment of about 4:1 to 1:4. Preferred embodiments include reaction at temperature from about 70.degree. to 120.degree. C.; use of an inert solvent; and having the concentration of starting material amount to about 10-40% by weight relative to the mixture of starting material and solvent. Also provided are polyurethanes obtained according to this process, having a molecular non-uniformity from 2 to 7. Preferred embodiments include that the polyurethane have an average molecular weight from 60,000 to 250,000. The polyurethanes are useful for the production of membranes, specifically those to be used for sterile filtration or blood oxygenation.

摘要翻译： 在通过在溶剂中在催化剂存在下和在催化量的镁或钙盐存在下，通过大分子二醇，低分子量二醇作为增链剂和芳族二异氰酸酯的同时反应来生产线性分段聚氨酯的方法中， ，芳族羧酸大分子二醇，单体，低分子量二醇和芳香族二异氰酸酯反应，所述大分子二醇的用量可以在制备的聚氨酯中调节软链段与硬链段的重量比为约4:1至1:1。 4。 优选的实施方案包括在约70℃至120℃的温度下进行反应; 使用惰性溶剂; 并且起始原料的浓度相对于起始原料和溶剂的混合物为约10-40重量％。 还提供了根据该方法获得的具有2至7的分子不均匀性的聚氨酯。优选的实施方案包括聚氨酯的平均分子量为6,000至25万。 聚氨酯可用于生产膜，特别是用于无菌过滤或血氧合的膜。

公开(公告)号：US4104258A

公开(公告)日：1978-08-01

申请号：US471505

申请日：1974-05-20

申请人： Marija del Rio ,  Joachim Behnke ,  Michael Wallrabenstein ,  Dieter Frank

发明人： Marija del Rio ,  Joachim Behnke ,  Michael Wallrabenstein ,  Dieter Frank

IPC分类号： C08L79/00 ,  C08G73/06 ,  C08L79/04 ,  C08G73/08

CPC分类号： C08G73/0644

摘要： A metal compound of a polyacyl-2,4-dihydrazino-s-triazine in which the metal is chemically bound in complex form to the polymer to provide dimensionally stable and heat-resistant polymeric compounds which are useful as pigments, catalysts and synthetic fibers.

摘要翻译： 聚酰基-2,4-二肼基-s-三嗪的金属化合物，其中金属以复合形式化学键合到聚合物上，以提供可用作颜料，催化剂和合成纤维的尺寸稳定和耐热的聚合物。