Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1982-06-07
1984-04-24
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524477, 524485, C08K 501
Patent
active
044449380
ABSTRACT:
Phenyltetralylbutane (PTB) is used to plasticize polyvinylchloride (PVC) resins. The PTB in one embodiment is prepared by refluxing tetralin an flowing condensed vapors of the tetralin over a bed of strongly acidic catalyst, which may for example be a synthetic acid "Y" type zeolite. In one embodiment, the PTB is used as a secondary plasticizer, with a primary plasticizer such as di(2-ethyl)hexyl phthalate.
REFERENCES:
patent: 2289743 (1942-07-01), Warner et al.
patent: 2477717 (1949-08-01), Brandt
Coggins Eugene L.
Vanderwerff William D.
Hess J. Edward
Johnson Donald R.
Sarofim N.
Schofer Joseph L.
Sun Tech, Inc.
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