Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1996-08-22
1998-02-10
Mulcahy, Peter D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524117, 524356, 524357, 524394, 524399, 524401, 524437, C08J 515, C08J 500
Patent
active
057170134
ABSTRACT:
A polypropylene resin composition comprising (a) 100 parts by weight of a propylene polymer having an isotactic pentad fraction of 96% or more which is determined by .sup.13 C-NMR, (b) 0.01-5 parts by weight of at least one alkali salt selected from the group consisting of alkali carboxylates, alkali .beta.-diketonates and alkali salts of .beta.-ketacetate, (c) 0.01-5 parts by weight of an organophosphoric compound, and (d) 0.01-0.5 parts by weight of 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):
wherein Y is an inorganic or organic anion, n is a charge of Y and m is a number of 3 or less.
REFERENCES:
patent: 5342868 (1994-08-01), Kimura et al.
Ichiyanagi Kenji
Yamazaki Masayuki
Mulcahy Peter D.
Tonen Chemical Corporation
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