Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1974-02-28
1976-05-18
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526348, C08F21000, C08F21200
Patent
active
039577430
ABSTRACT:
A mixture of monomers essentially consisting of propylene and ethylene is polymerized in contact with a halogen-containing catalyst essentially free of microcrystalline precipitates, said catalyst resulting from mixing an alkyl aluminum compound with a hydrocarbon-soluble vanadium compound. The molar ratio of the propylene and ethylene in contact with the catalyst is maintained at a value such that an elastomeric, substantially amorphous, linear copolymerizate is produced, and is recovered from the reaction mass.
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Gladding et al., Ind. Eng. Chem. Prod. Res. Develop. 1962, 1, 65-70.
Sartori et al., Rend. Accad. Naz. Lincoi, 1963, 35, 565.
Boschi Giorgio
Mazzanti Giorgio
Natta Giulio
Clingman A. L.
Montecatini Edison S.p.A.
Schofer Joseph L.
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