Polypropylene composition containing a 1.3,2.4-di(alkylbenzylidene) sorbitol
First Claim
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1. A composition comprising 100 parts by weight of isotactic polypropylene or crystalline copolymers of propylene and ethylene or propylene and alpha-olefins or mixtures thereof and 0.005 to 8 parts by weight of a 1.3,2.4-di(alkylbenzylidene) sorbitol of the formula ##STR2## wherein R represents an alkyl group having 2 to 18 carbon atoms.
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Abstract
A composition having improved transparency and being substantially free from a bleeding phenomenon comprising 100 parts by weight of polypropylene and 0.005 to 8 parts by weight of a 1.3,2.4-di(alkylbenzylidene) sorbitol with each alkyl group having 2 to 18 carbon atoms.
52 Citations
8 Claims
- 1. A composition comprising 100 parts by weight of isotactic polypropylene or crystalline copolymers of propylene and ethylene or propylene and alpha-olefins or mixtures thereof and 0.005 to 8 parts by weight of a 1.3,2.4-di(alkylbenzylidene) sorbitol of the formula ##STR2## wherein R represents an alkyl group having 2 to 18 carbon atoms.
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Current AssigneeMitsui Chemicals Incorporated (Mitsui Chemicals)
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Original AssigneeMitsui Chemicals Incorporated (Mitsui Chemicals)
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InventorsKawai, Yoichi, Sasagawa, Katsuyoshi, Maki, Masami, Miyamoto, Masayoshi, Ueda, Hozumi
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Primary Examiner(s)Michl, Paul R.
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Application NumberUS06/175,726Time in Patent Office545 DaysField of Search525/1, 260/45.95 R, 260/45.8 A, 260/30.4 RUS Class Current524/108CPC Class CodesC08K 5/1575 Six-membered ringsC08L 23/10 Homopolymers or copolymers ...
