Method of making diarlysilanediol containing polymers, polymer compositions and articles containing such polymers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 9, 2016
Grant Date -
Aug 27, 2015
app pub date -
Dec 4, 2014
filing date -
Dec 5, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of making a polymer with stable Mooney viscosity and molecular weight is described. A conjugated diolefin is reacted in a hydrocarbon solvent in the presence of an initiator to form a polymer. After forming the polymer, alkoxy silane terminal functionalizing groups are bonded to the polymer. A mixture of at least one of a first stabilizing agent having the formula (R)4-nSi(OH)n wherein R is a C1 to C18 alkyl, C1 to C18 alkyl group containing a heteroatom such as nitrogen or oxygen, C4 to C8 cycloalkyl, or C6 to C18 aromatic group, and a at least one of a second stabilizing agents having the formula (R)2Si(OH)2 wherein R is an aryl group, is then added to the polymer, optionally in the presence of hydrocarbon oil. The polymer is then desolvatized, resulting in a polymer with stable Mooney viscosity and molecular weight, even over prolonged periods of time. Compositions and articles containing the polymer are also described.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully