公开(公告)号：JP2000033246A

公开(公告)日：2000-02-02

申请号：JP18750799

申请日：1999-07-01

Applicant: BASF AG

Inventor： MEHLER CHRISTOF DR ,  GOTTSCHALK AXEL ,  BREINER ULRIKE DR ,  STADLER REIMUND ERICH ,  GOLDACKER THORSTEN

IPC: B01D71/44 ,  B01D53/22 ,  B01D71/80 ,  C08L53/00

Abstract: PROBLEM TO BE SOLVED: To adjust permeability and to improve separation technology by using a microphase separation polymer blend containing an A-B-C three-block copolymer having an elastomeric middle block B and an A'-C' two-block copolymer. SOLUTION: A microphase separation polymer blend comprising an A-B-C threeblock copolymer and an A'-C' two-block copolymer is used in order to produce a permeable membrane. A suitable A-B-C three-block copolymer has an elastomeric middle block B. An olefinic unsaturated compound of specified conditions is used in order to form the block B. In order to produce an A-B-C/A '-C' polymer blend, the two-block copolymer and the three-block copolymer are added into an organic solvent, and the solution is poured in a polar liquid medium such as methanol, ethanol, water, and the mixture of them. This deposition/precipitation treatment is done under strong stirring.

公开(公告)号：MY118727A

公开(公告)日：2005-01-31

申请号：MYPI9900534

申请日：1999-02-13

Applicant: BASF AG

Inventor： BREINER ULRIKE DR ,  JULIUS MANFRED ,  ILG OTTO

IPC: C08G69/00 ,  C08G69/08 ,  C08G69/28 ,  C08G69/48 ,  C08G73/10 ,  C08K5/3435

Abstract: AN INHERENTLY LIGHT- AND HEAT-STABILIZED POLYAMIDE POLYAMIDE HAS AT LEAST ONE PIPERIDINE COMPOUND BONDED TO THE BACKBONE POLYMER CHAIN AND AT LEAST ONE 4-AMINO-2, 2, 6, 6-TETRAMETHYLPIPERIDINE COMPOUND BONDED TO THE BACKBONE POLYMER CHAIN. THE INHERENTLY LIGHT- AND HEAT-STABILIZED POLYAMIDE MAY BE USED TO FROM ARTICLES SUCH AS, FOR EXAMPLE, FIBERS, CARPETS, YARNS, AND TEXTILE FABRICS.

公开(公告)号：MY117816A

公开(公告)日：2004-08-30

申请号：MYPI9901026

申请日：1999-03-19

Applicant: BASF AG

Inventor： BREINER ULRIKE DR ,  JULIUS MANFRED ,  NEUBERG RAINER DR ,  XDF ROBERT WEI DR ,  WILMS AXEL DR ,  HU HARRY Y

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28 ,  C08G69/48 ,  C08K5/3435

Abstract: A PROCESS FOR PREPARING POLYAMIDES COMPRISES POLYMERIZING STARTING MONOMERS OR STARTING OLIGOMERS IN THE PRESENCE OF AT LEAST ONE COMPOUND OF THE FORMULA (1) (FORMULA I) WHERE R IS A FUNCTIONAL GROUP R8 WHICH BEARS 1-4 IDENTICAL OR DIFFERENT AMIDE-FORMING GROUPS R7, RL IS H, CL-C20-ALKYL, CYCLOALKYL, BENZYL OR OR6, WHERE R6 IS H, CL-C20-ALKYL, CYCLOALKYL OR BENZYL R2, R3, R4 AND R5 ARE INDEPENDENTLY C1-CL0-ALKYL,N IS A NATURAL NUMBER GREATER THAN 1, ANDTHE PIPERIDINE DERIVATIVES ATTACHED TO R ARE IDENTICAL OR DIFFERENT WITH REGARD TO THE SUBSTITUENTS, MEANING RL, R2, R3, R4 AND R5.THE POLYAMIDES ARE USEFUL FOR PREPARING FILAMENTS, FIBERS, FILMS, SHEETLIKE STRUCTURES AND MOLDINGS.