Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1986-01-21
1987-09-01
Seccuro, Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 75, 525 86, 525931, 525240, C08L 5104, C08L 5106, C08L 2306, C08L 2310
Patent
active
046909761
ABSTRACT:
A polymer resin comprising a blend of an olefin polymer, such as polyethylene, a monovinylidene aromatic polymer, such as polystyrene, and a grafted, block copolymer compatibilizing agent. The compatibilizing agent comprises an .alpha.-olefin copolymer substrate grafted with amounts of monovinylidene aromatic polymer. Preferably, the .alpha.-olefin copolymer substrate is a terpolymer of ethylene, propylene and a non-conjugated diolefin. This thermoplastic material has very desirable property combinations, combining the desirable properties from the olefinic and monovinylidene aromatic polymers. The blend can be shaped into final products by thermoforming techniques yet possesses many desirable polyolefin properties such as environmental stress crack resistance.
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Morse Jonathan W.
Seccuro Carman J.
The Dow Chemical Company
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