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Vinyl chloride resin composition for vehicle

一种氯乙烯系树脂、组合物的技术，应用在车辆用氯乙烯系树脂组合物领域

Active Publication Date: 2006-03-08
ADEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The problem to be solved is that no vinyl chloride-based resin composition suitable for powder molding has been obtained so far. As mentioned above, the properties required for materials used in automotive interior materials, namely thermal stability, heat aging resistance, Excellent cold resistance and fog resistance, and excellent moldability such as gelling property, mold release and mold contamination

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1

[0066] The vinyl chloride-based resin composition obtained by mixing described below was dried in a Geer oven at 130° C. for 2 hours, and stirred for 15 minutes using an automatic mixer to prepare a compound. After putting the chrome mirror panel into a 300°C Gill oven for about 15 minutes and taking it out, when the mirror panel becomes 240°C, the compound is rapidly spread to a uniform thickness and left for 10 seconds. After the mirror panel (mold) was turned upside down and left for 30 seconds, it was dipped in a water tank and cooled to obtain a sheet (thickness 1.0 mm).

[0067] The gelation state of the sheet at this time was observed, and the gelation property was evaluated according to the following evaluation criteria.

[0068] (evaluation criteria)

[0069] ⊚: Completely gelled.

[0070] ◯: Gelatinized, but granular matter remains inside.

[0071] Δ: Gelatinized but uneven on the surface.

[0072] ×: There is an ungelled portion.

[0073] In addition, the above...

Embodiment 2 and comparative example 2

[0100] The mixture was mixed as follows, and a sheet was produced in the same manner as in Example 1, and the gelatinization property, decomposition time at 250° C., yellowness, embrittlement temperature, and haze were measured. These results are shown in [Table 2] below.

[0101] (mixed) parts by mass

[0102] Suspension Polymerized PVC 90

[0103] Paste PVC 10

[0104] Epoxidized soybean oil 5

[0105] Titanium dioxide (rutile type) 2

[0106] Zinc stearate 0.2

[0107] Sodium A Zeolite (NA-Z) 3.0

[0108] Hydrotalcite (HT-1) 1.0

[0109] (Composition formula: Mg 4 Al 2 (OH) 12 ·CO 3 ·3H 2 O)

[0110] Sodium perchlorate 0.8

[0111] Hexa(tridecyl)·1,1,4-butylene tri

[0112] (6-tert-butyl-m-cresol) triphosphite 1.0

[0113] Test compound (see [Table 2] below) See [Table 2] below

[0114] test

Embodiment 3 and comparative example 3

[0116] The mixture was mixed as follows, and a thin sheet was prepared in the same manner as in Example 1, and the embrittlement temperature and haze were measured. Then inject a certain thickness of foamed polyurethane into the formed sheet on the chrome mirror panel to make a polyurethane-lined sheet. Put this lined sheet into an oven at 120°C, use a Hunter colorimeter to measure the coloration of the lined sheet after 300 hours and 450 hours, and obtain the ratio of the lined sheet (original) before putting it into the oven. Color difference ([Delta]E), as colorability when exposed to lower temperatures.

[0117] These results are shown in [Table 3] below.

[0118] (mixed) parts by mass

[0119] Suspension Polymerized PVC 90

[0120] Paste PVC 10

[0121] Epoxidized Linseed Oil 5

[0122] Bisphenol A diglycidyl ether 3

[0123] Zinc stearate 0.3

[0124] Perchloric acid treated hydrotalcite (C-HT) 1.0

[0125] 2,2'-Methylenebis(2-tert-butyl-5-methyl

[0126] Phenol...

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PUM

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Abstract

A vinyl chloride based resin composition for a vehicle, which comprises 100 parts by mass of a vinyl chloride based resin, and 5 to 200 parts by mass of a plasticizer component consisting of (a) at least one trimellitate based plasticizer and (b) at least one sebacate based plasticizer in a mass ratio [(a) component / (b) component] of 99 / 1 to 60 / 40. The resin composition is excellent in thermal stability, the resistance to thermal aging, the resistance to a low temperature and the resistance to fogging, and further is excellent in the formability such as gelling property, the easiness in the release from a mold, and the property of staining a mold, and thus is suitable for use in powder molding.

Description

technical field [0001] The present invention relates to a vinyl chloride-based resin composition for vehicles, in particular, to a vinyl chloride-based resin composition for vehicles suitable for automotive interior materials with improved thermal stability, heat aging resistance, cold resistance, and anti-fog properties. Background technique [0002] Vinyl chloride-based resins have excellent physical properties such as mechanical strength, chemical resistance, and weather resistance, and are relatively inexpensive. Therefore, semi-rigid or flexible vinyl chloride resins are often used as coating materials for automobile interiors. [0003] However, in recent years, along with thinner layers for cost reduction and higher performance required, it is desired to improve not only processing stability but also thermal aging characteristics and light resistance characteristics during use. [0004] In addition, in order to give the interior material a soft feeling, the covering ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08K5/10C08K3/24
CPCC08K5/10C08L27/06
Inventor 三寺太朗岩波清立西原谦
Owner ADEKA CORP
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