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Polyolefin resin composition and production method thereof

A technology of polyolefin resin and composition, applied in the direction of organic chemistry, which can solve the problems of reduced impact resistance and achieve the effects of reducing color tone, impact resistance and excellent fluidity

Pending Publication Date: 2021-11-30
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] As one method for reducing the weight of parts, the method of reducing the thickness of parts can be considered, but the impact resistance may decrease due to thinning
In addition, when molding a part with a thinned shape, it is necessary to improve the fluidity of the polyolefin resin constituting the part, but the impact resistance may also be reduced by increasing the fluidity of the resin.

Method used

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  • Polyolefin resin composition and production method thereof
  • Polyolefin resin composition and production method thereof
  • Polyolefin resin composition and production method thereof

Examples

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Embodiment

[0211] Hereinafter, the present invention will be described in further detail using examples. Unless otherwise indicated, "%" and "part" in an example mean % by mass and parts by mass, respectively. First, the measurement method of the physical property value will be described.

[0212] Determination of Intrinsic Viscosity

[0213] The intrinsic viscosity (unit: dl / g) is a value measured at a temperature of 135°C by the following method using tetralin as a solvent.

[0214] The reduced viscosity was measured at three points of concentrations of 0.1 g / dl, 0.2 g / dl and 0.5 g / dl using an Ubbelohde viscometer. Using the calculation method described on page 491 of "Polymer Solution, Polymer Experiment Science 11" (published by Kyoritsu Publishing Co., Ltd. in 1982), that is, using the method of plotting the reduced viscosity against the concentration and extrapolating the concentration to zero Extrapolation method to find the intrinsic viscosity.

[0215] Determination of melt ...

manufacture example 1

[0221] Production Example 1: Production of Polyolefin Resin (A-1)

[0222] According to the method described in Example 1 of Japanese Patent Laid-Open No. 2004-182981, a polymerization catalyst was produced, and using the polymerization catalyst, a propylene homopolymer component containing 79 wt. parts, and 21 parts by mass of the polyolefin resin (A-1) of the ethylene-propylene random copolymer component which is an ethylene-type copolymer. The melt flow rate (230° C., 2.16 kg load) of the obtained polyolefin resin was 25 g / 10 minutes. The intrinsic viscosity of the propylene homopolymer component (P portion, propylene-based resin pp1) contained in the polyolefin resin (A-1) was 1.1 dl / g. In addition, the intrinsic viscosity of the ethylene-propylene random copolymer component (EP part, ethylene-based copolymer ep1) is 2.8 dl / g, and the content of the monomer unit derived from ethylene contained in the ethylene-based copolymer ep1 is relative to the ethylene-based copolymer...

manufacture example 2

[0223] Production Example 2: Production of Polyolefin Resin (A-2)

[0224] According to the method described in Example 1 of Japanese Patent Application Laid-Open No. 2004-182981, a polymerization catalyst was produced, and using the polymerization catalyst, a propylene homopolymer component containing 89 wt. parts, and polyolefin resin (A-2) of 11 parts by mass of the ethylene-propylene random copolymer component which is an ethylene-based copolymer. The melt flow rate (230° C., 2.16 kg load) of the obtained polyolefin resin was 98 g / 10 minutes. The intrinsic viscosity of the propylene homopolymer component (P portion, propylene-based resin pp2) contained in the polyolefin resin (A-2) was 0.79 dl / g. In addition, the intrinsic viscosity of the ethylene-propylene random copolymer component (EP part, ethylene-based copolymer ep2) is 7.0 dl / g, and the content of the monomer unit derived from ethylene contained in the ethylene-based copolymer ep2 is relative to the ethylene-based...

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Abstract

The present invention relates to a polyolefin resin composition containing at least: (A) 100 parts by mass of a polyolefin resin; (B) 0.01-5 parts by mass of a compound having at least one (meth)acrylate group, and one hydrogen bonding group or one (meth)acrylate group; and (C) 0.01-5 parts by mass of an organic peroxide.

Description

technical field [0001] The present invention relates to a polyolefin resin composition and a method for producing the same. Background technique [0002] Polyolefin resins are used, for example, as materials for various industrial parts such as bumpers, instrument panels, door moldings, pillars, and other interior and exterior parts for automobiles, and parts for vacuum cleaners and televisions for home appliances. Rigidity and impact resistance are required for these parts, but weight reduction is also required for parts used in them due to increasing demand for weight reduction of automobiles and home appliances in recent years. [0003] As one method for reducing the weight of a component, a method of reducing the thickness of the component is conceivable, but the impact resistance may decrease due to the thinning. In addition, when molding a part having a thinned shape, it is necessary to improve the fluidity of the polyolefin resin constituting the part, but the impact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/101C08K5/14C08L23/02
CPCC08K5/14C08F255/02C08K5/105C08K5/372C08L23/12C07C323/20C07C69/54C08F220/30C08L23/16C08J3/22C08J2323/12C08J2423/16C08K5/101
Inventor 木村奈津子樋口悠宫武俊明
Owner SUMITOMO CHEM CO LTD
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