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:
Jan. 19, 2021
Filed:
Oct. 24, 2018
Applicants:
Ddp Specialty Electronic Materials Us, Inc., Collegeville, PA (US);
Ddp Specialty Electronic Materials Us 8, Llc, Collegeville, PA (US);
Inventors:
Andrew M. Savo, Cherry Hill, NJ (US);
Mark Vandersall, Jamison, PA (US);
Klaus-Dieter Topp, Kronberg, DE;
Liu Yang, Shanghai, CN;
Assignees:
DDP SPECIALTY ELECTRONIC MATERIALS US, INC., Collegeville, PA (US);
DDP SPECIALTY ELECTRONS MATERIALS US 8, LLC, Collegeville, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 37/20 (2006.01); C07C 39/16 (2006.01); B01J 31/08 (2006.01); B01J 31/10 (2006.01); B01J 35/02 (2006.01); B01J 31/06 (2006.01);
U.S. Cl.
CPC ...
C07C 37/20 (2013.01); B01J 31/06 (2013.01); B01J 31/08 (2013.01); B01J 31/10 (2013.01); B01J 35/026 (2013.01); B01J 2231/347 (2013.01); B01J 2231/4288 (2013.01); B01J 2531/002 (2013.01);
Abstract
Provided is a process for producing 2,2-bis(4-hydroxyphenyl)propane, comprising condensing phenol with acetone in the presence of an acid catalyst;