Resin composition of propylene-ethylene random copolymer
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United States of America Patent
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Mar 30, 1999
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N/A
app pub date -
Jun 9, 1997
filing date -
Aug 23, 1995
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Abstract
A resin composition of propylene-ethylene random copolymer comprising (a) a propylene-ethylene random copolymer, (b) at least one alkali salt selected from the group consisting of alkali carboxylates, alkali .beta.-diketonates and alkali salts of .beta.-ketacetate, (c) an organophosphoric compound, and (d) a lithium aluminum compound. The organophosphoric compound is represented by the following formula (I): ##STR1## wherein R.sub.1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, each of R.sub.2 and R.sub.3 is independently hydrogen or an alkyl group having 1 to 12 carbon atoms, M is a metal atom of an element selected from the group consisting of Group III, IV, XIII and XIV elements of the Periodic Table, and X is --OH when M is a metal atom of an element of Group III or XIII of the Periodic Table or X is .dbd.O or (--OH).sub.2 when M is a metal atom of an element of Group IV or XIV of the Periodic Table, and the lithium aluminum compound is represented by the following formula (II): ?Al2Li(OH).sub.6 !.sub.n Y.mH.sub.2 O (II) wherein Y is an inorganic or organic anion, n is a charge of Y and m is a number of 3 or less.
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