The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2019
Filed:
Aug. 25, 2017
Applicant:
Thomas Swan & Co. Ltd, Durham, GB;
Inventors:
Ian Stuart Pearce, Hexham, GB;
David Dunn, Jarrow, GB;
Howard Winston Tyrrell Sutton, Washington, GB;
John Ing Chuan Daly, Hexham, GB;
Simon Jonathon Grant, Newcastle, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/36 (2006.01); C07D 307/06 (2006.01); C08F 36/06 (2006.01);
U.S. Cl.
CPC ...
C07D 307/36 (2013.01); C07D 307/06 (2013.01); C08F 36/06 (2013.01);
Abstract
A method for the isolation of oligomeric 2, 2-difurylpropane (DTHFP) suitable for use on an industrial scale. A method can include using oligomeric 2, 2-difurylpropane, in particular, its use can be as a polar modifier for butadiene and styrene butadiene polymerization so is to produce rubber. Utilizing the material as an alternative to DTHFP in rubber production avoids subsequent leaching of the DTHFP into the environment as the oligomeric 2, 2-difurylpropane (DTHFP) gives rise to much lower levels of leaching.