Depression of the glass transition temperature of polyolefins co

Details Depression of the glass transition temperature of polyolefins co Depression of the glass transition temperature of polyolefins co

1997-10-09

1999-11-09

Michl, Paul R.

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...

C08K 501

Patent

active

059816430

ABSTRACT:
Copolymers of ethylene and a cyclic olefin, preferably a fused ring cyclic olefin (FRCO), optionally containing an alpha-olefin and/or a non-conjugated diene, display increasing glass transition temperatures (T.sub.g) as the amount of FRCO in the copolymer increases. This increase brings these polymers quickly above a T.sub.g acceptable as elastomers. Addition of specially selected process oils, based on cohesive energy densities of both the copolymer and the process oil, is shown to lower T.sub.g to a range acceptable for elastomers e.g. below about -30.degree. C. The copolymer/process oil combination can then be used in elastomer compounding operations and behave in typical elastomer fashion.

REFERENCES:
patent: 3222330 (1965-12-01), Nyce et al.
patent: 3676390 (1972-07-01), Vergne et al.
patent: 4132698 (1979-01-01), Gessler
patent: 4195013 (1980-03-01), De Zarauz
patent: 4316971 (1982-02-01), Rim
patent: 4540753 (1985-09-01), Cozewith et al.
patent: 5179171 (1993-01-01), Minami et al.
patent: 5225503 (1993-07-01), Sagane et al.
patent: 5290886 (1994-03-01), Ellul
patent: 5397832 (1995-03-01), Ellul
patent: 5552489 (1996-09-01), Merrill
patent: 5610254 (1997-03-01), Sagane et al.
patent: 5691432 (1997-11-01), Williams
"Prediction of Polymer Properties" by J. Bicerno, published by Marcel Dekker, Inc., New York, NY(1993), p. 149.
Bulletin of the American Physical Society, VI, p. 123 (1956).
Polymer Bulletin V18, p. 73 (1987).
W. Kaminsky, M. Arndt and A. Bark, American Chemical Society: Polymer Reprints, V32, p. 467 (1991).
Marcromolecules 1988, vol. 21, p. 3360 (Ver Strate, et al.).

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