Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1986-10-01
1989-08-08
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526138, 526901, C08F 234, C08F 1000
Patent
active
048553700
ABSTRACT:
A method for reducing sheeting during polymerization of alpha-olefins in a low pressure fluidized bed reactor utilizing titanium or vanadium based compounds as catalysts together with alkyl aluminum cocatalysts wherein water is introduced water into said reactor in an amount sufficient to maintain the electrostatic levels at the site of possible sheet formation at levels which avoid sheeting without substantially altering the effectiveness of said catalysts.
REFERENCES:
patent: 3177184 (1965-04-01), Cottle
patent: 3708465 (1973-01-01), Slietrich et al.
patent: 4130699 (1978-12-01), Hoff et al.
patent: 4532311 (1985-07-01), Fulks et al.
Boland et al., "Electrostatic Charging in Gas Fluidized Beds", Powder Technology, 5 (1971-72).
"Reduction of Particle Agglomeration in a Fluidizing Gas Stream in the Presence of a Radiofrequency Glow Discharge", I&EG Fund (1980), 19, 315-316.
Geldart et al., "Static Electrification in Fluidized Beds", Chem. Eng. Sci., 1969, vol. 24, pp. 1389-1390.
Pohl, H. A., "Nonuniform Field Effects: Dielectrophoresis", Chapter 14, Electrostatics and its Applications, Moore, Wiley Pub. (1973) pp. 336-338.
Masuda et al., "Electrification of Gas Solid Suspension Flowing in Steel and Insulating-Cooled Pipes", Journal of Electrostatics, 2 (1976/77) pp. 341-350.
Chirillo John R.
Kimbrough, II Kellam C.
McHattie Peder E.
Smith Edward J.
Union Carbide Corporation
Vicari Clement J.
LandOfFree
Method for reducing sheeting during polymerization of alpha-olef does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for reducing sheeting during polymerization of alpha-olef, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing sheeting during polymerization of alpha-olef will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-906327