Polyolefin resin composition and foam molded article

A technology of resin composition and polyolefin resin, applied in the fields of polyolefin resin composition and foam molding products, can solve the problems of color unevenness, color unevenness, etc., and achieve the effect of good appearance and suppressing color unevenness
CN101759948AInactive Publication Date: 2010-06-30SUMITOMO CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUMITOMO CHEM CO LTD
Publication Date
2010-06-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

A resin composition, comprising (A) a polyolefin resin, (B) a foaming agent, (C) a black pigment, and 0.05 to 5 parts by mass of (D) a hindered amine light stabilizer which satisfies the following requirements (a) and (b), provided that the content of the polyolefin resin (A) is let be 100 parts by mass: requirement (a): having a 2,2,6,6-tetramethylpiperidyl group represented by formula (I) that is attached to any of a carbon atom, an oxygen atom and a nitrogen atom: requirement (b): having an acid dissociation constant (pKa) of less than 8.
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Description

technical field

[0001] The present invention relates to a polyolefin resin composition and a foam molded article. Background technique

[0002] Polypropylene resin compositions are materials excellent in rigidity, impact resistance, etc., and therefore, they are used in various applications in the form of molded articles, such as interior or exterior parts of automobiles and housings of electric appliances. Foam molding has been employed to save weight in shaped articles. In many shaped articles of such polypropylene resin compositions, the product is colored by adding a pigment in consideration of high designability. Therefore, it is necessary to suppress the occurrence of color unevenness in shaped articles, and many studies on the occurrence of color unevenness in shaped articles have been conducted.

[0003] For example, JP 10-060184A discloses a polyolefin composition comprising a polyolefin (A) and a pigment (B), wherein the pigment (B) contains carbon black (B- 1),...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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