Polymerization processes

Details Polymerization processes Polymerization processes

2006-03-20

2009-02-17

Egwim, Kelechi C (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S086000, C526S201000

Reexamination Certificate

active

07491775

ABSTRACT:
A process for preparing a polymer comprising selecting temperatures and amounts of a polymerization medium, a surfactant, a monomer or polymer seed, and any desired additives to achieve an initial temperature in a polymerization reactor; adding the polymerization medium and surfactant as contents to the polymerization reactor whereby the surfactant is added within 1.5 times a time period required for polymerization medium addition; and introducing the monomer or polymer seed and the any desired additives as contents to the polymerization reactor, wherein the temperatures and amounts of the contents are selected such that when the additions are completed, the resulting temperature of the contents of the polymerization reactor is within about 5° C. of a temperature at which polymerization is initiated, and wherein less than about 5 kcal of energy is removed or added per liter of contents in the reactor; and initiating polymerization.

REFERENCES:
patent: 3563946 (1971-02-01), Miller et al.
patent: 4539361 (1985-09-01), Siol et al.
patent: 4742472 (1988-05-01), Sugimori et al.
patent: 5264315 (1993-11-01), Tan et al.
patent: 6046286 (2000-04-01), Kreilein et al.
patent: 6245851 (2001-06-01), Petrocelli et al.
patent: 6320000 (2001-11-01), Hurry et al.
patent: 6498219 (2002-12-01), Kröner et al.
patent: 6660814 (2003-12-01), Kröner et al.
patent: 2002/0001547 (2002-01-01), Connelly et al.
patent: 2003/0162879 (2003-08-01), Laubender et al.
patent: 100 41 680 (2002-03-01), None
patent: 0 111 341 (1983-12-01), None
patent: 0 165 416 (1985-04-01), None
patent: 0 486 262 (1991-12-01), None
patent: 0 526 741 (1992-07-01), None
patent: 1160257 (2001-12-01), None
patent: 1160257 (2001-12-01), None
patent: WO 98/25984 (1998-06-01), None

Affiliated with

Also associated with

Rating

Polymerization processes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymerization processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymerization processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4058160