Patent application number | Description | Published |
20090247716 | Production of Vinylidene-Terminated Polyolefins Via Quenching with Monosulfides - Provided herein are methods for a vinylidene terminated polyolefin comprising:
| 10-01-2009 |
20100016191 | Copolymers Made With Allyl-Terminated Polyolefins And Unsaturated Acidic Reagents, Dispersants Using Same, and Methods of Making Same - Copolymers made with allyl-terminated polyolefins and unsaturated acidic reactants, dispersants using same, and methods of making same are provided. Under one aspect, a copolymer of an unsaturated acidic reactant and high molecular weight polyolefin, wherein the polyolefin comprises an allyl-terminated polymeric product, is provided. The allyl-terminated polymeric product is formed, e.g., by forming a quasi-living tert-halide terminated polyolefin under suitable quasi-living conditions, and contacting the tert-halide terminated polyolefin with an allylsilane compound and a Lewis acid. In some embodiments, the allylsilane compound includes allyltrimethylsilane. | 01-21-2010 |
20100099835 | Production of Vinylidene-Terminated and Sulfide-Terminated Telechelic Polyolefins Via Quenching with Disulfides - Provided herein are methods for preparing vinylidene-terminated polyolefins. Further, provided herein are novel sulfide-terminated polyolefins of the formula: | 04-22-2010 |
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 |
20110306738 | METHODS FOR PRODUCING TELECHELIC POLYOLEFINS FROM TERPENE INITIATORS - Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator. | 12-15-2011 |
20120142864 | PRODUCTION OF VINYLIDENE-TERMINATED AND SULFIDE-TERMINATED TELECHELIC POLYOLEFINS VIA QUENCHING WITH DISULFIDES - Provided herein are methods for preparing vinylidene-terminated polyolefins. Further, provided herein are novel sulfide-terminated polyolefins of the formula: | 06-07-2012 |