Polypropylene resin composition
AssigneeAdeka Corporation
InventorsNaoko Tanji, Mohamed Sidqi
Life of this patent
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Abstract
This polypropylene resin composition is characterized by containing the following per 100 mass parts of a polypropylene resin: 0.06 to 0.1 mass parts of a specific aromatic metal phosphate, 0.015 to 0.02 mass parts of a specific aromatic triamide compound, and 0.015 to 0.03 mass parts of magnesium hydroxide. This polypropylene resin composition makes it possible to increase the transparency and physical strength of a polypropylene resin with only small amounts of a nucleator and transparentization agent added. The reduction in the amounts of additives also increases resistance to leaching and makes molded articles more sanitary.
Claims1
A polypropylene-based resin composition, containing 0.06 to 0.1 part by mass of a compound represented by the following general formula (I), 0.015 to 0.02 part by mass of a compound represented by the following general formula (II) and 0.015 to 0.03 part by mass of magnesium hydroxide per 100 parts by mass of a polypropylene-based resin:
- wherein R1, R2, R3 and R4 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms;
- X represents a direct bond or an alkylidene group having 1 to 4 carbon atoms;
- M represents any of an alkali metal, an alkaline earth metal and aluminum;
- Y represents a hydroxyl group;
- n represents 1 when M is an alkali metal, represents 2 when M is an alkaline earth metal, or represents 2 or 3 when M is aluminum;
- and m represents 0 or 1, wherein m represents 0 when M is an alkali metal or alkaline earth metal, or represents 1 when n is 2 or represents 0 when n is 3 when M is aluminum;
- wherein Z represents an amide bond, and R5, R6 and R7 each independently represent a straight chain or branched alkyl group having 1 to 8 carbon atoms.
Dependencies are inferred from the claim text.