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Stain-resistant polypropylene resin composition, and home electric appliance housing and toilet seat each comprising the composition

A technology of polypropylene resin and composition, which is applied in the field of antifouling polypropylene resin composition, can solve the problems of weak antifouling, high accumulation, insufficient perfluoroalkyl orientation, etc., and achieve high antifouling Effect

Inactive Publication Date: 2013-06-12
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent Document 2 has the following problems: the orientation of the perfluoroalkyl group on the surface of the matrix resin is not sufficient, the antifouling property is weak, and some substances containing perfluoroalkyl groups have high accumulation in the organism, which is a problem for the organism. Concerned about affecting substances of concern

Method used

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  • Stain-resistant polypropylene resin composition, and home electric appliance housing and toilet seat each comprising the composition
  • Stain-resistant polypropylene resin composition, and home electric appliance housing and toilet seat each comprising the composition
  • Stain-resistant polypropylene resin composition, and home electric appliance housing and toilet seat each comprising the composition

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0057] Figure 4 is a schematic cross-sectional view showing a comparative example in which a polar group-containing silicone oil 32 is added to a polypropylene resin 31, figure 1 It is a schematic cross-sectional view of the antifouling polypropylene resin composition in the first embodiment of the present invention. figure 1 The antifouling polypropylene resin composition shown in is a composition obtained by dispersing a modified polypropylene resin 2 as a compatibilizer and a silicone oil 3 having a polar group in a polypropylene resin 1 . And, a part of the modified polypropylene resin 2 is combined with the polar group-containing silicone oil 3 through a chemical reaction. In this embodiment, substantially all molecules of the polar group-containing silicone oil 3 are bonded to the modified polypropylene resin 2 . exist figure 1 Near the surface of the antifouling polypropylene resin composition, the silicone oil 3 containing polar groups combined with the modified...

Embodiment approach 2

[0062] figure 2 It is a schematic cross-sectional view of the antifouling polypropylene resin composition in the second embodiment of the present invention. figure 2 The antifouling polypropylene resin composition is a composition obtained by dispersing modified polypropylene resin 6 as a compatibilizer and silicone oil 7 having a polar group in polypropylene resin 5 . Furthermore, unreacted polar group-containing silicone oil 8 is present in polypropylene resin 5 by adding polar group-containing silicone oil 7 in excess relative to the reaction site of modified polypropylene resin 6 . Since the silicone oils are easily compatible, the unreacted polar group-containing silicone oil 8 exists to fill the gap between the polar group-containing silicone oil 7 reacted with the modified polypropylene resin 6 .

[0063] The method of adding non-reactive silicone oil can also achieve the same effect as this. The silicone oil used at this time does not need to be a polar group-conta...

Embodiment approach 3

[0068] image 3 It is the external appearance schematic diagram of the Western-style toilet in 3rd Embodiment of this invention. The Western-style toilet is composed of a toilet 22 and a toilet seat provided on the top of the toilet 22 . The toilet seat is made of a toilet seat 21 for the user, an openable and closable toilet cover 23 positioned on the top of the toilet seat 21 , a main body 24 for installing the toilet seat 21 and the toilet cover 23 . The toilet seat may be a warm water flush toilet seat. In this case, a water supply pipe (not shown) for receiving flush water supplied from a water pipe and a cable (not shown) for receiving electricity supplied from a socket on the wall surface are provided.

[0069] The toilet seat 21 is often made of polypropylene resin in order to withstand the load of the person sitting on it, or to withstand the toilet detergent containing acid / alkali / alcohol and the like. Polypropylene resins are generally excellent in antifouling pr...

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Abstract

An antifouling polypropylene resin composition that exhibits a high degree of antifouling property is provided. An antifouling polypropylene resin composition which contains a polypropylene resin, a silicone oil having a polar group, and a compatibilizing agent that improves compatibility between the silicone oil having the polar group and the polypropylene resin, in which the silicone oil having the polar group is dispersed in the polypropylene resin.

Description

technical field [0001] The present invention relates to an antifouling polypropylene resin composition capable of imparting antifouling properties to the surfaces of home appliance casings and toilet seats. Background technique [0002] In the past, as a method of imparting antifouling properties to the resin, the following methods have been carried out: the method of doping the resin with hydrophobic and oil-repellent substances such as silicone compounds and fluorine compounds; the use of silicone-based coatings, etc. to implement surface coating. The method of coating; the method of surface modification with fluorine-based monomolecular film; the method of pasting a resin film with low surface energy such as fluororesin on the resin surface, etc. [0003] Patent Document 1 discloses that an antifouling resin combination with good dispersibility and excellent durability can be obtained by adding a silicone resin graft-polymerized with a resin having good compatibility with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/26C08L83/04
CPCC08L51/003C08L51/06C08L83/04C08L2555/40C08L23/10C08L2666/02
Inventor 佐野光宏大城智史
Owner PANASONIC CORP