Patent application number | Description | Published |
20090318624 | Preparation of exo-olefin terminated polyolefins via quenching with alkoxysilanes or ethers - Provided herein are methods for preparing a polyolefin containing one or more exo-olefinic end groups on the polyolefin chain, comprising quenching an ionized polyolefin with an alkoxysilane or an ether. In some embodiments, the methods are represented by the following scheme: | 12-24-2009 |
20100184918 | Functionalization of Polyolefins with Phenoxy Derivatives - Provided herein are telechelic polymers and methods for producing the same. In some embodiments, provided herein are compounds having the formula | 07-22-2010 |
20100249001 | AMINE-TERMINATED TELECHELIC POLYMERS AND PRECURSORS THERETO AND METHODS FOR THEIR PREPARATION - Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with a functionalized N-substituted pyrrole to thereby introduce the functionalized N-substituted pyrrole at the terminal reactive polymer chain end(s). A method is also disclosed whereby the N-substituent may be derivatized to a basic amine containing functional group. Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole. | 09-30-2010 |
20100311915 | METHOD FOR PREPARATION OF POLYOLEFINS CONTAINING EXO-OLEFIN CHAIN ENDS - The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with a nitrogen-containing five-membered aromatic ring having at least two hydrocarbyl substituent compounds attached to the ring. | 12-09-2010 |
20110028681 | IN SITU FORMATION OF HYDROXY CHAIN END FUNCTIONAL POLYOLEFINS - Provided herein are methods for preparing a telechelic polymer of formula I | 02-03-2011 |
20110306745 | VINYL ETHER END-FUNCTIONALIZED POLYOLEFINS - Provided herein are vinyl ether end-functionalized polyolefins and methods for producing the same. | 12-15-2011 |
20130131280 | FUNCTIONALIZATION OF POLYOLEFINS WITH PHENOXY DERIVATIVES - Provided herein are telechelic polymers and methods for producing the same. In some embodiments, provided herein are compounds having the formula | 05-23-2013 |
20130150539 | METHOD FOR PREPARATION OF POLYOLEFINS CONTAINING EXO-OLEFIN CHAIN ENDS - The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with a nitrogen-containing five-membered aromatic ring having at least two hydrocarbyl substituent compounds attached to the ring. | 06-13-2013 |
20130158206 | IN SITU FORMATION OF HYDROXY CHAIN END FUNCTIONAL POLYOLEFINS - Provided herein are methods for preparing a telechelic polymer of formula I | 06-20-2013 |
20140031497 | AMINE-TERMINATED TELECHELIC POLYMERS AND PRECURSORS THERETO AND METHODS FOR THEIR PREPARATION - Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with a functionalized N-substituted pyrrole to thereby introduce the functionalized N-substituted pyrrole at the terminal reactive polymer chain end(s). A method is also disclosed whereby the N-substituent may be derivatized to a basic amine containing functional group. Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole. | 01-30-2014 |
20140135452 | VINYL ETHER END-FUNCTIONALIZED POLYOLEFINS - Provided herein are vinyl ether end-functionalized polyolefins and methods for producing the same. | 05-15-2014 |