Maro Publications

Elastomers

Patent Abstracts

*10/30/2013
from 7/5/2012
Maro Topics

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Patent Abstracts

2. 8,242,236 
Elastomeric nanocomposite manufacturing
 
Soisson et al of ExxonMobil, Texas, developed an elastomeric nanocomposite  from an isobutylene-based polymer and a layered nanofiller.  The process of preparing the nanocomposite includes the steps of a) polymerizing isobutylene monomers and multiolefin monomers to produce an isobutylene-based polymer; b) completing at least one mass transfer dependent stage in the process wherein, after completion of the stage and prior to any recovery of the polymer, the polymer is dissolved in a solvent to create a polymer cement; c) contacting the layered nanofiller and the polymer solvent to obtain the nanocomposite; and d) recovering the nanocomposite. The layered nanofiller may be in a slurry prior to contacting with the polymer cement. (RDC 9/4/2012)

1. 8,210,967 
Elastomers, process for preparation, and uses thereof
 
Pawlow et al of Firestone Polymers, Ohio, developed elastomeric interpolymers comprising at least two, or more, cyclic olefin monomers that are prepared by ring opening metathesis polymerization, and that are characterized by having no crystallinity, a glass transition temperature (T.sub.g) of less than -80.degree. C., and a number average molecular weight (M.sub.n) of at least 40 kg/mole, and functionalized products thereof.  A ring opening metathesis polymerization process for producing the elastomeric interpolymers having no crystallinity.  Uses of the elastomeric interpolymers in applications such as rubber compounds, tires, and the like.  Cores of golf balls that are prepared by using metathesis polymerization produced elastomeric interpolymers having 0 to about 30% crystallinity. (RDC 7/5/2012)

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Interested!!
Bookmark this page to follow future developments!.
(RDC 6/5/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921
E-Mail: cornelrd@bee.net  

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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 7/5/2012.