Polypropylene resin composition, molded article produced from the resin composition, and method for production of the molded article

A technology of polypropylene resin and composition, which is applied in the direction of flat products, applications, household appliances, etc., and can solve problems such as poor compatibility, film-forming properties of blends, poor stretching processability, poor forming processability, and difficulty in molding. Increased degree of freedom and excellent moldability
CN101910287AInactive Publication Date: 2010-12-08KUREHA KAGAKU KOGYO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUREHA KAGAKU KOGYO KK
Publication Date
2010-12-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a polypropylene resin composition which comprises: a resin component comprising 55 to 99 mass% of polypropylene and 1 to 45 mass% of polyglycolic acid; and a reactive compatibilizing agent in an amount of 0.3 to 30 parts by mass relative to 100 parts by mass of the resin component. Also disclosed is a molded article which is produced from the polypropylene resin composition. In the molded article, a dispersion phase composed of polyglycolic acid is present in a matrix composed of polypropylene, wherein polyglycolic acid is dispersed in the matrix in the form of separate thin films. Further disclosed is a method for producing the molded article.
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Description

technical field

[0001] The present invention relates to a polypropylene resin composition, and more particularly, to a polypropylene resin composition capable of forming a molded article excellent in gas barrier properties.

[0002] Furthermore, the present invention relates to a molded article having excellent gas barrier properties formed from the polypropylene resin composition and a method for producing the molded article. Background technique

[0003] Polypropylene is a general-purpose resin material excellent in heat resistance, transparency, gloss, moisture resistance, tensile strength, rigidity, water resistance, chemical resistance, surface hardness, etc., and it is used as a packaging material film, container, various parts, etc. for a wide range of uses.

[0004] As the non-stretched polypropylene film, a cast polypropylene film (CPP film) obtained by a casting method and an inflated polypropylene film (IPP film) obtained by an inflation method are known. These ...

Claims

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