US 10,472,457 B2 · Initiators for living carbocationic polymerization

Abstract

In various embodiments, the present invention is directed to new low cost initiator compositions for use with the production of well-defined telechelic PIBs (by LC+P of isobutylene). In various other embodiments, the present invention is directed to methods for using these novel compositions as initiators for isobutylene (IB) and other cationically polymerizable monomers, such as styrene and its derivatives. In still other embodiments, the present invention is directed to structurally new, allyl (and chlorine) telechelic PIBs formed from these new initiator compositions and their derivatives (in particular, hydroxyl telechelic PIB and amine telechelic PIB). In yet other embodiments, the present invention is directed to structurally new polyurethanes, polyureas, and polyurethane ureas made using telechelic PIBs formed from these new initiator compositions.

Claims5

Dependent claims

An initiator molecule defined by one of the following formulas:

wherein x is Cl, or OCH3.

Dependencies are inferred from the claim text.

Facts

Application

16/069,659Filed 20 Jan 2017 · us provisional application

Priority

21 Jan 2016

Published

US 2019/0127510 A12 May 2019

Granted

12 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

C08G 18/6204
Polymers of compounds having carbon-to-carbon double bonds: polymers of olefins
C07C 13/44
With condensed rings: with a bicyclo ring system containing eight carbon atoms
C07C 23/18
Compounds containing at least one halogen atom bound to a ring other than a six-membered aromatic ring: polycyclic halogenated hydrocarbons
C07C 23/32
With condensed rings none of which is aromatic: with a bicyclo ring system containing eight carbon atoms

Initiators for living carbocationic polymerization

Life of this patent

Initiators for living carbocationic polymerization

Life of this patent

Abstract

Claims5