LAMP BODY FOR VEHICULAR LIGHTING TOOL AND VEHICULAR LIGHTING TOOL

Title:

LAMP BODY FOR VEHICULAR LIGHTING TOOL AND VEHICULAR LIGHTING TOOL

Document Type and Number:

Japanese Patent JP2005166359

Kind Code:

A

Abstract:

To provide a lamp body for a vehicular lighting tool made of a new material in place of PP which can be heat welded to a lens made of PC.

The lamp body 10 for a vehicular lighting tool is structured with a PC/PTT alloy material having 80 to 50 wt.% of polycarbonate resin (hereinafter called PC) and 20 to 50 wt.% of polytrimethylene terephthalate resin (hereinafter called PTT) as main ingredients with 5 to 10 wt.% of a filler added to a total weight of PC and PTT. The lamp body 10 structured with the PC/PTT alloy material can be heat welded to the PC-made lens 12 and has heat resistance, chemical resistance and flexural rigidity of a similar level as one made of PP, so that the lens 12 and the lamp body 10 can be jointed for integration with a heat welding method, which solves various problems accompanying the conventional hot-melt process.

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Inventors:

YAMADA AKIHISA
MOCHIZUKI DAISUKE
YASUMA HIDETADA

Application Number:

JP2003401824A

Publication Date:

June 23, 2005

Filing Date:

December 01, 2003

Export Citation:

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Assignee:

KOITO MFG CO LTD

International Classes:

F21S8/10; B29C65/00; B29C65/16; B60Q1/04; C08L69/00; F21V1/00; F21V3/04; F21V15/01; F21V15/02; F21V17/00; F21W101/10; (IPC1-7): F21S8/10; F21V15/01; F21V17/00

Attorney, Agent or Firm:

Hideto Yagi

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