公开(公告)号：EP2510033A1

公开(公告)日：2012-10-17

申请号：EP09852140.4

申请日：2009-12-11

Applicant: Invista Technologies S.à.r.l.

Inventor： SUN, Qun ,  MCINNIS, Edwin, L.

IPC: C08G18/48 ,  C08G69/40 ,  C08L71/02 ,  C08G63/66 ,  C08L67/02 ,  C08L75/08

CPC classification number: C08K5/053 ,  C08G65/20 ,  C08G69/40 ,  C08J5/18 ,  C08J2367/02 ,  C08J2371/02 ,  C08J2375/04 ,  C08J2377/00 ,  C08L67/025 ,  C08L71/02 ,  C08L77/06 ,  C08L2666/22 ,  C08L75/04 ,  C08L77/00

Abstract: The present invention relates to a novel polyurethane, copolyether ester or copolyether amide elastomer composition comprising a glycol derived from random copoiymerization of alkylene oxide and tetrahydrofuran (THF), the alkylene oxide having from 2 to 4 carbon atoms, i.e., poly(tetramethylene-co- alkyieneether) glycol.

公开(公告)号：EP2419470B1

公开(公告)日：2016-03-30

申请号：EP09843445.9

申请日：2009-04-15

Applicant: Invista Technologies S.à.r.l.

Inventor： SUN, Qun ,  MCINNIS, Edwin, L.

IPC: C08G65/20 ,  C08G65/02 ,  C08G65/04 ,  C08G65/10 ,  C08L71/02 ,  C08L71/00

CPC classification number: C08G65/20 ,  C08G65/30 ,  C08L71/02 ,  C08L2666/22

公开(公告)号：EP2864393A1

公开(公告)日：2015-04-29

申请号：EP13808905.7

申请日：2013-06-14

Applicant: Invista Technologies S.à.r.l.

Inventor： DORAI, Suri, N. ,  SUN, Qun

IPC: C08G65/30

CPC classification number: C07D307/08 ,  C08G65/20 ,  C08G65/30 ,  C08G2650/12

Abstract: The present invention provides an improved process for preparing a narrow molecular weight distributed polytetramethylene ether glycol (PTMEG). The product polytetramethylene ether glycol has an increased number average molecular weight, a lowered polydispersity and a reduced molecular weight ratio when compared to the polytetramethylene ether glycol in the corresponding feedstock.

公开(公告)号：EP1706444A1

公开(公告)日：2006-10-04

申请号：EP04811692.5

申请日：2004-11-19

Applicant: INVISTA Technologies S.à.r.l.

Inventor： SUN, Qun

IPC: C08J3/00 ,  C08J5/20

CPC classification number: C08J5/225 ,  C08J2327/12

Abstract: A process for making a solution of perfluorosulfonated ion exchange polymer is disclosed. The process involves heating a slurry containing a perfluorosulfonated ion exchange polymer resin, an organic ether compound and water in a mechanically agitated pressurized vessel to an elevated temperature, so as to totally dissolve the resin in the solution. The perfluorosulfonated ion exchange polymer solution is recovered, and the water and the organic ether compound are removed from the solution. A perfluorosulfonated ion exchange polymer resin remains, which can be coated onto a fabric, or converted into a film which can be laminated onto a fabric. The resulting fabric forms the basis for a chemical and/or biological agent barrier for use in certain types of apparel.