Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1985-12-10
1986-11-18
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
502109, 502125, 526144, 526904, 526140, 526141, C08F 402, C08F 1000
Patent
active
046237070
ABSTRACT:
.alpha.-Olefins are polymerized in the presence of Ziegler-Natta catalysts which are polymer supported compounds or complexes of elements of the d-block transition metals, lanthanide or actinide series. An example of the polymer support is chloromethylated polystyrene-divinyl benzene copolymer covalently bonded to catechol. An example of the compound or complex of an element of the transition metal, lanthanide or actinide series is that which results when catechol which is covalently bonded to the polymer is contacted with titanium tetraisopropoxide.
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J. Macromol. Sci. Chem., A11(3), pp. 633-642 (1977) by Suzuki et al., entitled "Polymerization of Olefins by a Ziegler Catalyst Supported on Poly(ethylene-co-Vinyl Alcohol)".
Bedell Stephen A.
Coleman, III William M.
Howell, Jr. William R.
Carter J. G.
Smith Edward J.
The Dow Chemical Company
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