公开(公告)号：US20080153994A1

公开(公告)日：2008-06-26

申请号：US11615598

申请日：2006-12-22

申请人： Jan Pleun Lens ,  Tilak Thulasi Raj ,  Subarna Shyamroy ,  Arakali Radhakrishna Srinivasarao ,  Scindia Dattu Subash

发明人： Jan Pleun Lens ,  Tilak Thulasi Raj ,  Subarna Shyamroy ,  Arakali Radhakrishna Srinivasarao ,  Scindia Dattu Subash

IPC分类号： C08F283/02 ,  C08F20/00

CPC分类号： C08F283/00 ,  C08F283/02 ,  C08G64/085 ,  C08G64/24

摘要： A silylated polycarbonate comprises silylated carbonate units, where the silylated carbonate units can be derived from a silylated dihydroxy aromatic compound of the formula (1a): wherein Ga and Gb are each independently C1-12 alkyl, —OSi(C1-12 alkyl)3, C1-12 arylalkyl, or —OSi(C1-12 arylalkyl)3; Za and Zb are each independently a straight or branched C2-18 alkylene, a C8-18 arylalkylene, or a C8-18 alkylarylene, Xa is a direct bond, a heteroatom-containing group, or a C1-18 organic group, and r and s are each independently 1 or 2. A method of forming the silylated dihydroxy aromatic compound, and for forming the silylated polycarbonate, are disclosed. Also disclosed is a thermoplastic composition comprising the silylated polycarbonate, and an article comprising the thermoplastic composition.

摘要翻译： 甲硅烷基化聚碳酸酯包括甲硅烷基化碳酸酯单元，其中甲硅烷基化碳酸酯单元可以衍生自式（1a）的甲硅烷基化二羟基芳族化合物：其中G a和 各自独立地为C 1-12烷基，-OSi（C 1-12烷基）3，C 1-12 有机基团，r和s各自独立地为1或2.公开了形成甲硅烷基化二羟基芳族化合物和形成甲硅烷基化聚碳酸酯的方法。 还公开了包含甲硅烷基化聚碳酸酯的热塑性组合物和包含热塑性组合物的制品。

公开(公告)号：US07321069B2

公开(公告)日：2008-01-22

申请号：US11015183

申请日：2004-12-17

申请人： Gurram Kishan ,  Ramesh Krishnamurti ,  Kapila Debjani ,  Arakali Radhakrishna Srinivasarao ,  Jan-Pleun Lens

发明人： Gurram Kishan ,  Ramesh Krishnamurti ,  Kapila Debjani ,  Arakali Radhakrishna Srinivasarao ,  Jan-Pleun Lens

IPC分类号： C07C39/12

CPC分类号： C07C37/20 ,  B01J21/066 ,  B01J21/08 ,  B01J27/188 ,  C07C37/14 ,  C07C2601/14 ,  C07C39/17

摘要： A process for preparing aromatic bisphenols, wherein the method comprises reacting an aromatic hydroxy compound with an alkylating agent having a functionality of two in the presence of a catalyst system. The catalyst system used for the process is selected from the group consisting of a heteropolyacid compound, a clay, a functionalized metal oxide catalyst and combinations of the foregoing.

摘要翻译： 一种制备芳族双酚的方法，其中所述方法包括在催化剂体系的存在下使芳族羟基化合物与官能度为2的烷基化剂反应。 用于该方法的催化剂体系选自杂多酸化合物，粘土，官能化金属氧化物催化剂和上述组合。