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Light stabilizer composition and resin composition containing same

A light stabilizer and composition technology, applied in the direction of chemical change-inhibiting compositions, other chemical processes, chemical instruments and methods, etc., can solve the problems of easy adhesion on the surface, low molecular weight, volatilization, etc., and achieve excellent weather resistance , Excellent weather resistance and excellent operability

Active Publication Date: 2016-05-25
ADEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when used in polyolefin-based resins, it tends to volatilize from the resin, so there is a problem that the effect of weather resistance cannot be maintained.
In addition, the hindered amine compound has a low molecular weight and tends to be in a liquid state, and the surface tends to be sticky, so there is a problem with handling.

Method used

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  • Light stabilizer composition and resin composition containing same
  • Light stabilizer composition and resin composition containing same
  • Light stabilizer composition and resin composition containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1～1-7 and comparative example 1-1～1-5

[0108] The hindered amine compound described in the following Table 1 or Table 2 was stirred at 40° C. for 20 minutes using an FM mixer (FM-20 type, manufactured by Japan Coke Co., Ltd.), whereby it was confirmed that the hindered amine compound was in a molten state, Then, according to the weight ratio (hindered amine compound / silicon dioxide) to reach the ratio of 30 / 70, 40 / 60, 50 / 50, add silicon dioxide under normal pressure to obtain the photostable compound prepared in each ratio. agent composition.

[0109] The following evaluation was performed about the photostabilizer composition obtained by the said method.

[0110] (1) traits

[0111] The obtained photostabilizer composition was put into a beaker and stirred so as to draw a circle on the bottom of the beaker with a glass rod, and then the properties were evaluated visually.

[0112] ◎: dry powder

[0113] ○: Moist powdery

[0114] △: Low stickiness, but lumpy

[0115] ×: Adhesive paste

[0116] In addition, th...

Embodiment 2-1

[0153] Embodiment 2-1 (stabilization of polypropylene)

[0154] Add polypropylene resin (MFR: 30g / 10min, density: 0.9g / cm 3 ) 70 parts by mass, ENGAGE 8100 10 parts by mass as an elastomer, 20 parts by mass of talc (trade name P-4 manufactured by Nippon Talc Co., Ltd.), tetrakis (3-4) as a phenolic antioxidant (3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxymethyl)methane 0.05 parts by mass, tris(2,4-di-tert-butylphenyl)phosphite as phosphorus antioxidant 0.05 parts by mass, 0.05 parts by mass of calcium stearate, 3 parts by mass of beige masterbatch (product name: PPCM700V-118) manufactured by Tokyo Printingink Co., Ltd. as a pigment, and the light of Example 1-1 described in the following Table 1. 0.1 parts by mass of the stabilizer composition, mixed thoroughly, melted and kneaded at a resin temperature of 230°C while being discharged by a twin-screw extruder to make pellets, and injection molded at 230°C to obtain a test piece of 60mm×20mm×2mm piece.

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Abstract

The present invention provides a light stabilizer composition in which the handling property of a hindered amine compound, which is a compound produced by reacting a 2,2,6,6-tetramethylpiperidinol compound with a carbonate ester, is improved. The present invention specifically provides a light stabilizer composition produced by impregnating 100 parts by mass of silica (A) having a water content of 2 to 7 wt% with 10 to 300 parts by mass of a hindered amine compound (B) represented by general formula (1). It is preferred that 5 to 500 parts by mass of a benzoate-type light stabilizer (C) represented by general formula (3) is also added to the light stabilizer composition. The details about general formulae (1) and (3) are as described in the description.

Description

technical field [0001] The present invention relates to a light stabilizer composition preferably used for vehicle parts such as instrument panels, shock absorbers, and inner linings; more specifically, the present invention relates to a light stabilizer obtained by impregnating highly hydrous silica with a hindered amine compound A composition and a resin composition obtained by blending the photostabilizer composition. Background technique [0002] Polyolefin-based resins are degraded by light and cannot withstand long-term use. Therefore, ultraviolet absorbers or hindered amine compounds are usually added to provide long-term stabilization. [0003] As a compound used as a light stabilizer, generally, a compound having a high melting point, plasticizing the resin, and having little volatilization from the resin is preferred. However, when the molecular weight is increased, the migration of the light stabilizer in the resin is suppressed, so the stabilizing effect tends t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K15/20C08K9/12C08L23/00C08L101/00C09K3/00
CPCC08K9/12C08L101/00C08K3/36C08K5/3435C08L23/12C08K3/34C08L23/16C08K5/105C08K5/3432C08K5/005C08K5/134
Inventor 绫部敬士臼井崇横森美奈子
Owner ADEKA CORP
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