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:
Feb. 25, 2025
Filed:
Jan. 19, 2023
Applicant:
Albemarle Corporation, Charlotte, NC (US);
Inventor:
William J. Layman, Jr., Baton Rouge, LA (US);
Assignee:
ALBEMARLE CORPORATION, Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 112/08 (2006.01); C08F 2/38 (2006.01); C08F 4/46 (2006.01); C08K 5/05 (2006.01); C08K 5/17 (2006.01); C08K 5/57 (2006.01);
U.S. Cl.
CPC ...
C08F 112/08 (2013.01); C08F 2/38 (2013.01); C08F 4/461 (2013.01); C08K 5/05 (2013.01); C08K 5/175 (2013.01); C08K 5/57 (2013.01); C08F 2410/01 (2013.01); C08F 2500/02 (2013.01);
Abstract
This invention relates to processes for forming hydrogen mediated saline hydride initiated anionic polystyrene distributions via novel polymerization conditions. This invention also relates to novel hydrocarbon soluble super active saline hydride catalyst and reagent compositions useful in conducting the hydrogen mediated saline hydride initiated polymerizations of this invention. This invention also relates to novel low molecular weight polystyrene polymer composition formed exclusively from styrene and molecular hydrogen as the monomers.