Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1996-09-13
1998-04-28
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526138, 526160, 5263482, 5263484, 5263485, 5263486, 526351, 526352, 526901, 526943, C08F 234
Patent
active
057445567
ABSTRACT:
A process for the gas-phase polymerization of polymers which allows for the introduction of an unsupported polymerization catalyst system into the gas-phase reactor, wherein the unsupported polymerization catalyst system comprises (i) a non-volatile materials fraction containing a polymerization catalyst; (ii) a solvent fraction which is at least partially miscible with the non-volatile materials fraction and which is sufficiently volatile to allow for the formation of polymerization catalyst particles when the mixture of the solvent fraction and the non-volatile materials fraction is sprayed into the reactor; (iii) a compressed fluid; and (iv) optionally a slowly vaporizing solvent.
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Carmichael Keith Ernest
Cropley Jean Bowman
Keller George Ernest
Larsen Eldon Ronald
Ramamurthy Arakalud Venkatapathia
Leuzzi, II P. W.
Union Carbide Chemicals & Plastics Technology Corporation
Wu David W.
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