Process for increasing the proportion of the .beta.-modification

Details Process for increasing the proportion of the .beta.-modification Process for increasing the proportion of the .beta.-modification

1996-11-12

1997-10-28

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

524397, 524570, 525366, C08J 300

Patent

active

056819226

ABSTRACT:
Process for increasing the proportion of the .beta.-modification in polypropylenes, in which the polypropylenes are melted together with dicarboxylic acid salts of metals of the 2nd main group of the Periodic Table as .beta. nucleating agents and optionally with further conventional additives and are cooled, and polyropylenes which contain dicarboxylic acid salts of metals of the 2nd main group of the Periodic Table as .beta. nucleating agents.

REFERENCES:
patent: 3268449 (1966-08-01), Colas et al.
patent: 3299029 (1967-01-01), Binbergen et al.
patent: 4704421 (1987-11-01), Teskin
patent: 4801637 (1989-01-01), McCullough, Jr.
patent: 4984804 (1991-01-01), Yamada et al.
patent: 4999404 (1991-03-01), Matsuki
patent: 5231126 (1993-07-01), Shi et al.
patent: 5300549 (1994-04-01), Ward et al.
Derwent Abstracts, C93-154, 739.
Hawley's Condensed Chemical Dictionary, 11th Ed., NISax, ed., Van Nostrand Reinhold, New York, 1987, pp. 206 and 120.

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