JAMES L WALLACE
Engineering in Wilbraham, MA

License number
Massachusetts 9809
Expiration Date
Jun 30, 1984
Type
Chemical Engineer
Address
Address
Wilbraham, MA 01095

Professional information

James Wallace Photo 1

Process For Continuously Coagulating An Aqueous Latex And Consolidating As A Paste Coagulum

US Patent:
4080352, Mar 21, 1978
Filed:
May 26, 1977
Appl. No.:
5/800835
Inventors:
James L. Wallace - Wilbraham MA
Assignee:
Monsanto Company - St. Louis MO
International Classification:
C08J 310
US Classification:
260 297PT
Abstract:
A process for continuously coagulating a polymeric latex and consolidating as a paste coagulum in an apparatus comprising a barrel containing first and second feed ports, a rotor having opposed rows of angled tab blades and opposed wiper blades, a feed and closure means and a discharge port in an end of said barrel opposed to said feed ports, the steps comprising, continuously feeding an aqueous latex and an organic solvent simultaneously with a coagulant to said apparatus, continuously mixing said feeds and coagulating said latex forming a coagulum, consolidating said coagulum as a solvent polymer phase having the aqueous phase dispersed therein, said coagulum taking the form of a paste.


James Wallace Photo 2

Mixer Apparatus For Continuously Coagulating An Aqueous Latex And Consolidating As A Paste Coagulum

US Patent:
4107793, Aug 15, 1978
Filed:
May 26, 1977
Appl. No.:
5/800836
Inventors:
James L. Wallace - Wilbraham MA
Assignee:
Monsanto Company - St. Louis MO
International Classification:
B01F 716
US Classification:
366312
Abstract:
A mixing apparatus for continuously coagulating the polymer of an aqueous latex and consolidating as a paste coagulum comprising a barrel, a rotor positioned therein and being coaxial therewith, said rotor having attached opposed rows of forward angled tab blades and opposed wiping blades axially aligned therewith, said barrel having first and second feed ports at a first end section and a discharge port at the second end section thereof, a closure means and a journal means attached to said rotor at the feed section thereof, the relationship between the elements of said apparatus being such that during operation of said apparatus, said paste coagulum can output from said discharge port when said latex is input to said first port means and a coagulant is input to said second port means.