Daniel T Floyd

US Patent:

20200102701, Apr 2, 2020

Filed:

Dec 2, 2019

Appl. No.:

16/700755

Inventors:

- King of Prussia PA, US
David John Biondo - Philadelphia PA, US
Daniel Clay Floyd - North Chesterfield VA, US
Jay Fingeret Miller - Downingtown PA, US
Charles Sebastian Sanderson - Wayne PA, US

International Classification:

D21C 9/00
C09D 105/00
C09D 197/00
D21C 9/08
D21H 21/02
B08B 7/00
B08B 9/08
B01J 19/02
C13K 1/02

Abstract:

Provided is a method for directed fouling of a substance onto a selected surface. Also provided is an apparatus suitable for directed fouling of a substance onto a selected surface.

US Patent:

20180023251, Jan 25, 2018

Filed:

Mar 6, 2015

Appl. No.:

15/552399

Inventors:

- King of Prussia PA, US
David John Biondo - Philadelphia PA, US
Daniel Clay Floyd - North Chesterfield VA, US
Jay Fingeret Miller - Downingtown PA, US
Charles Sebastian Sanderson - Wayne PA, US

International Classification:

D21C 9/00
C13K 1/02
B01J 19/02

Abstract:

Provided is a method for directed fouling of a substance onto a selected surface. Also provided is an apparatus suitable for directed fouling of a substance onto a selected surface.

US Patent:

20140163197, Jun 12, 2014

Filed:

Aug 15, 2012

Appl. No.:

14/234577

Inventors:

Esther E. Quintanilla - Antwerpen, BE
Hanno R. Van Der Wal - Hoek, NL
Daniel C. Floyd - Richmond VA, US
Myriam Linke - Terneuzen, NL
Francois M. Casati - Pfaffikon, CH
Carlos M. Villa - Lake Jackson TX, US
Jean-Paul Masy - Destelbergen, BE
Ricco B. Borella - Schindellegi, CH
Paul Cookson - Samstagern, CH

Assignee:

DOW GLOBAL TECHNOLOGIES LLC - Midland MI

International Classification:

C08G 65/34

US Classification:

528371

Abstract:

Ethylene carbonate is polymerized by itself or together with another cyclic monomer such as 1,2-propylene oxide in the presence of a double metal cyanide catalyst. Most of the ethylene carbonate adds to the chain to form a terminal carbonate group, which decarboxylates to produce a hydroxyethyl group at the end of the polymer chain. The polymerization of more ethylene carbonate onto the chain end results in the formation of poly(ethyleneoxy) units. Therefore, the process provides a method for making poly(ethyleneoxy) polymers without the need to polymerize ethylene oxide. The process is useful for making polyethers that are useful as water-absorbable polymers, surfactants and as raw materials for polyurethanes. The process is also useful for increasing the primary hydroxyl content of a polyether.