公开(公告)号：US3912687A

公开(公告)日：1975-10-14

申请号：US45094774

申请日：1974-03-13

Applicant: BAYER AG

Inventor： HAUPT HEINRICH ,  VERNALEKEN HUGO ,  WEIRAUCH KURT ,  HABERLAND ULRICH

IPC: C08G63/00 ,  C08G64/00 ,  C08G64/08 ,  C08G64/24 ,  C08G64/28 ,  C08G63/62 ,  C08G75/28

CPC classification number: C08G64/24 ,  C08G64/08 ,  C08G64/28

Abstract: A process is provided for making high molecular weight halosubstituted aromatic polycarbonates in a phase boundary reaction in which an o,o,o'',o''-tetrahalogenobisphenol and phosgene are reacted in an aqueous medium at a pH of 7 to 9 in the presence of from 2 mol% to 20 mol% catalyst in a first step and the resulting product is polycondensed at a pH of at least about 13 in a second step.

Abstract translation: 提供了一种在相边界反应中制备高分子量卤素取代的芳族聚碳酸酯的方法，其中o，o，o'，o'-四卤代双酚和光气在水性介质中在7至9的pH下反应 在第一步中存在2mol％至20mol％的催化剂，并且所得产物在第二步中在至少约13的pH下缩聚。

公开(公告)号：US3912688A

公开(公告)日：1975-10-14

申请号：US44177774

申请日：1974-02-12

Applicant: BAYER AG

Inventor： SCHILLER PAUL ,  HABERLAND ULRICH ,  VERNALEKEN HUGO

IPC: C08G64/06 ,  C08G63/62

CPC classification number: C08G64/06 ,  Y10S260/24

Abstract: Copolycarbonates are provided which have improved flame resistance and a reduced tendency to drip when flamed based on aromatic dihydroxy compounds, characterized in that they contain, besides the carbonate carbonyl radical, radicals derived by the removal of the hydroxyl hydrogen atoms from dihydroxy-diaryl compounds, radicals derived by the removal of the hydroxyl hydrogen atoms from nuclear halogenated by-hydroxyaryl compounds and bivalent radicals derived by the removal of the hydroxyl hydrogen atoms from the bis-hydroxy-sulfones of the formula (1)

AND/OR OF THE FORMULA (2)

IN WHICH Z is phenylene, diphenylene, naphthylene or a bivalent radical of formula (3)

IN WHICH R can be -O-, alkylene, alkylidene cycloalkylene, cycloalkylidene, SO2, SO, S or >CO, the amount of the sulfone being 0.1 mol% to 10 mol%, preferably 0.5 mol% to 5 mol%, based on the total amount of the di- and bis-hydroxy-compounds mentioned above.

Abstract translation: 提供了具有改进的阻燃性和基于芳族二羟基化合物燃烧时降低的滴落趋势的共聚碳酸酯，其特征在于，除了碳酸酯羰基之外，它们还含有通过从二羟基 - 二芳基化合物除去羟基氢原子衍生的基团， 通过从核卤代邻羟基芳基化合物除去羟基氢原子衍生的基团和通过从式（1）的双羟基 - 砜除去羟基氢原子衍生的二价基团和/或式（2） ）其中Z是亚苯基，二亚苯基，亚萘基或式（3）的二价基团。其中R可以是-O-，亚烷基，亚烷基亚环烷基，亚环烷基，SO 2，SO，S或> CO，砜的量为 0.1mol％至10mol％，优选0.5mol％至5mol％，基于上述二 - 和双 - 羟基化合物的总量。