公开(公告)号：EP3344984A1

公开(公告)日：2018-07-11

申请号：EP16760897.5

申请日：2016-08-30

申请人： Dow Global Technologies LLC

发明人： CONG, Rongjuan ,  PARROT, Albert ,  HOLLIS, Cherry

IPC分类号： G01N30/88 ,  G01N30/30 ,  G01N30/54 ,  B01D9/00 ,  B01D15/26 ,  G01N30/32

摘要： A method increase of the Resolution Index (RI) of a chromatogram generated from a polymer sample comprising at least two olefin-based polymers of different microstructures and/or at least two olefin-based polymer fractions of different microstructures. The method comprises separating the mixture on a low-porosity stationary phase and repeatedly cycling the sample-stationary phase through a series of cooling and heating stages with active eluent flow only during the cooling stages and during the last heating stage to elute the separated analytes off the column.

公开(公告)号：EP3341721A1

公开(公告)日：2018-07-04

申请号：EP16758071.1

申请日：2016-08-24

申请人： Dow Global Technologies LLC

发明人： CONG, Rongjuan ,  PARROT, Albert ,  HOLLIS, Cherry ,  CHEATHAM, Charles Michael

IPC分类号： G01N30/54 ,  G01N30/88

CPC分类号： G01N30/54 ,  B01D9/0013 ,  B01D15/10 ,  G01N30/30 ,  G01N30/88 ,  G01N2030/027 ,  G01N2030/3076 ,  G01N2030/885

摘要： A temperature gradient chromatography, and apparatus for the same, said method comprising the following: a) dissolving a composition comprising at least one polymer in at least one solvent, to form a polymer solution; b) injecting at least a portion of the polymer solution onto a support material and wherein the support material has a CI from 0.70 to 1.50; c) cooling the support material at a rate greater than, or equal to, 0.2° C./min; d) increasing the temperature of the support material to elute at least some of the polymer; e) generating the chromatogram.

公开(公告)号：EP3344984B1

公开(公告)日：2020-02-26

申请号：EP16760897.5

申请日：2016-08-30

申请人： Dow Global Technologies LLC

发明人： CONG, Rongjuan ,  PARROT, Albert ,  HOLLIS, Cherry

IPC分类号： G01N30/88 ,  G01N30/30 ,  G01N30/54 ,  B01D15/16 ,  B01D15/34 ,  B01D9/00 ,  G01N30/32