Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1985-03-25
1987-05-12
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526 87, 526 88, 526124, 526129, 526142, 526901, C08F 234, C08F 1002
Patent
active
046651403
ABSTRACT:
Process of polymerizing a monomer charge including ethylene by (1) drying an inorganic oxide having surface hydroxyl groups to form a support that is substantially free of adsorbed water, (2) reacting the surface hydroxyl groups of the support with at least a substantially stoichiometric amount of at least one organometallic compound corresponding to the formula R.sub.x MR'.sub.y R".sub.z, wherein M is a metal of Group III of the periodic table, R is an alkyl group containing 1 to 12 carbon atoms, R' and R" are independently selected from the group consisting of H, Cl, and alkyl and alkoxy groups containing 1 to 12 carbon atoms, x has a value of 1 to 3, and y and z both represent values of 0 to 2, the sum of which is not greater than 3-x, (3) reacting the thus-treated support with at least about 0.001 mol, per mol of organometallic compound, of at least one vanadium compound corresponding to a formula selected from (RO).sub.n VOX.sub.3-n and (RO).sub.m VX.sub.4-m, in which formulas R represents a C.sub.1 -C.sub.18 monovalent hydrocarbon radical that is free of aliphatic unsaturation, X is Cl or Br, n has a value of 0 to 3, and m has a value of 0 to 4, (4) reacting the product of step 3 with at least about 0.1 mol, per mol of organometallic compound, of an alcohol containing 1 to 18 carbon atoms, (5) feeding the product into a gas-phase reaction zone, (6) feeding a trialkylaluminum into the gas-phase reaction zone in order to form a bed comprising the product and the trialkylaluminum, (7) fluidizing the bed with a gas mixture including ethylene, hydrogen and chloroform, (8) removing particulate polymerized substantially ethylene particles from the reaction zone, and (9) recycling unreacted gas mixture from the top of the reaction zone to the bottom of the reaction zone.
REFERENCES:
patent: 2965626 (1960-12-01), Pilar et al.
patent: 3163611 (1964-12-01), Andersen et al.
patent: 3202645 (1965-08-01), Yancey
patent: 3718636 (1973-02-01), Stevens et al.
patent: 3787384 (1974-01-01), Stevens et al.
patent: 3790550 (1974-02-01), Miller
patent: 3925338 (1975-12-01), Ort
patent: 3956255 (1976-05-01), Ort
patent: 4232140 (1980-11-01), Ort
patent: 4256865 (1981-03-01), Hyde et al.
patent: 4383095 (1983-05-01), Goeke et al.
patent: 4435518 (1984-03-01), Pennington et al.
Hsieh John T. T.
Pennington B. Timothy
Roling Paul V.
Carpenter John Wade
Cities Service Oil & Gas Corp.
Smith Edward J.
LandOfFree
Process for polymerizing a monomer charge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for polymerizing a monomer charge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for polymerizing a monomer charge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1803080