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Molding material for a household plumbing equipment and a household plumbing equipment fabricated using the same

a technology for plumbing equipment and molding materials, which is applied in the direction of water installations, washstands, douches, etc., can solve the problems of insufficient disadvantages and advantages of physical properties of thermoplastic resins, and limited use of thermoplastic resins. , to achieve the effect of sufficient solvent resistance, superior surface hardness, and superior water resistan

Inactive Publication Date: 2013-01-10
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The first invention provides household plumbing equipment made of polymethyl methacrylate resin with superior surface hardness and water resistance. The combination of polytrimethylene terephthalate resin with polymethyl methacrylate resin provides sufficient solvent resistance for the household plumbing equipment. The second invention has sufficient hardness, water resistance, and solvent resistance for the household plumbing equipment.

Problems solved by technology

However, the thermoplastic resins have disadvantages as well as advantages in physical property.
Therefore, the thermoplastic resin has not been used often for fabricating the household plumbing equipment exemplified above.
Also, the thermoplastic resins is limited of its intended use depending on the characteristics thereof.
The polybutylene terephthalate resin has superior chemical resistance and superior solvent resistance, but has low surface hardness and inferior durability of water-resistance.
However, it has inferior solvent resistance.
However, this molding material is not suitable, in aspect of the physical property, for fabricating the above-exemplified household plumbing equipments, considering that it is composed mainly of the poly trimethylene terephthalate resin and considering the characteristics of combined material with the various addition ingredients.

Method used

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  • Molding material for a household plumbing equipment and a household plumbing equipment fabricated using the same
  • Molding material for a household plumbing equipment and a household plumbing equipment fabricated using the same
  • Molding material for a household plumbing equipment and a household plumbing equipment fabricated using the same

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example

[0059]In the following, the present invention is described in further detail by examples. Note that, the present invention is not limited thereto.

[0060]The following materials are used for the thermoplastic resin in the examples.[0061]Polymethyl methacrylate resin (PMMA)[0062]polymethyl methacrylate: “ACRYPET VH” (manufactured by MITSUBISHI RAYON Co., Ltd.)[0063]Poly trimethylene terephthalate resin (PTT)[0064]“DuPont Biomax PTT1100” (manufactured by DU PONT-MITSUI POLYCHEMICALS Co., Ltd.)[0065]Polybutylene terephthalate resin (PBT)[0066]“DURANEX 2002” (manufactured by WinTech Polymer Ltd.)[0067](Producing method of the test piece)

With regard to the working examples 1 to 3 and the comparative example 4, by using a biaxial kneader, the thermoplastic resins were mixed with heat in the blend ratio shown in the Table 1, and extruded in a strand shape. After cooling it, it was cut to prepare a pellet for molding. The test piece was produced with an injection machine by using the pellet f...

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Abstract

Providing: a molding material for a household plumbing equipment which has superior surface hardness as well as superior water resistance for use in the household plumbing equipment inherent from a polymethyl methacrylate resin, and yet has improved solvent resistance; and a household plumbing equipment fabricated using the molding material. The molding material for a household plumbing equipment is characterized by containing a thermoplastic resin comprising the polymethyl methacrylate resin and a polytrimethylene terephthalate resin in a mass ratio of 90:10-50:50.

Description

TECHNICAL FIELD[0001]This invention relates to a molding material for a household plumbing equipment containing a thermoplastic resin and a household plumbing equipment fabricated using the molding material.BACKGROUND ART[0002]Conventionally, some of thermoplastic resins such as a polypropylene resin (PP), a polybutylene terephthalate resin (PBT), and a polymethyl methacrylate resin (PMMA) have been used for fabricating household plumbing equipments such as a toilet, a hand wash basin, or a face wash basin.[0003]The thermoplastic resin has superior shape forming characteristics and has a cost advantage. However, the thermoplastic resins have disadvantages as well as advantages in physical property. Therefore, the thermoplastic resin has not been used often for fabricating the household plumbing equipment exemplified above. Also, the thermoplastic resins is limited of its intended use depending on the characteristics thereof.[0004]As an example, the polypropylene resin has superior c...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08L67/02A47K1/04A47K3/02A47K17/00
CPCC08L33/12C08L67/02E03C1/14A47K1/00E03D11/02C08L67/00C08L67/03E03D11/00
Inventor NIU, TAKAYAROKUSHIMA, KAZUMASA
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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