Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in tubular or loop reactor
Reexamination Certificate
2005-06-14
2005-06-14
Teskin, Fred (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in tubular or loop reactor
C526S062000, C526S088000, C526S159000, C526S918000, C422S131000, C422S138000, C422S201000
Reexamination Certificate
active
06906150
ABSTRACT:
Temperature control and efficient heat transfer are important to producing high quality polymer drag reducing agents from alpha-olefin and/or other monomers. Many polymerization reactions are exothermic, and controlling or minimizing the exotherm combined with low reaction temperatures yields high molecular weight and, for poly(alpha-olefins), high quality drag reducing agent polymers. It has been found that a shell and tube heat exchanger-type reactor, with the inner tubes hosting the reaction mixture and a coolant circulating through the shell side gives good temperature control. The use of appropriate release agents helps to keep the inner reaction chambers from building up any polymer residue. These reactors can be operated in a continuous filling and harvesting mode to facilitate the continuous production of polymer drag reducing agent and related formulations.
REFERENCES:
patent: 4058654 (1977-11-01), Sutter et al.
patent: 4527581 (1985-07-01), Motier
patent: 4769427 (1988-09-01), Nowakowsky et al.
patent: 4845178 (1989-07-01), Hostetler et al.
patent: 5449732 (1995-09-01), Smith et al.
patent: 5504131 (1996-04-01), Smith et al.
patent: 5504132 (1996-04-01), Smith et al.
patent: 6160036 (2000-12-01), Kommareddi et al.
patent: 6485692 (2002-11-01), Freitag et al.
patent: 2004/0225087 (2004-11-01), Baxter, Jr. et al.
patent: WO 02/100532 (2002-12-01), None
Harris Jeffrey R.
Kommareddi Nagesh S.
Mathew Thomas
Motier John F.
Baker Hughes Incorporated
Madan Mossman & Sriram P.C.
Teskin Fred
LandOfFree
Heat exchanger polymerization reactors for manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heat exchanger polymerization reactors for manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat exchanger polymerization reactors for manufacturing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3463395