LASER WELDED BODY - MITSUBISHI ENG PLASTICS CORP

Title:

LASER WELDED BODY

Document Type and Number:

WIPO Patent Application WO/2019/088073

Kind Code:

A1

Abstract:

The present invention relates to a laser welded body which is obtained by integrating a laser light transmitting/absorbing shaping member that is formed from a PBT material and a laser light absorbing shaping member that is formed from a PBT material by laser welding. The present invention proposes a laser welded body which is able to have a further enhanced bonding strength by having a configuration wherein a member I and a member II are integrated by lamination, and which is characterized in that: the member I contains from 0.0005 part by mass to 5.0 parts by mass of a laser light transmitting/absorbing dye material, which is able to transmit and absorb laser light, per 100 parts by mass of a polyester resin A; the polyester resin A contains at least a polybutylene terephthalate copolymerized resin; the member II contains from 0.15 part by mass to 10.00 parts by mass of a laser light absorbing dye material which does not transmit but is able to absorb laser light, per 100 parts by mass of a polyester resin B; and the polyester resin B contains a homo PBT (B1), a homo PBT mixed resin (B2) containing a homo PBT, or a copolymerized PBT mixed resin (B3) containing a copolymerized PBT.

Inventors:

OKA AKIHIRO (JP)
HIWATASHI YUKI (JP)
YAMANAKA YASUSHI (JP)

Application Number:

PCT/JP2018/040260

Publication Date:

May 09, 2019

Filing Date:

October 30, 2018

Export Citation:

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Assignee:

MITSUBISHI ENG PLASTICS CORP (JP)

International Classes:

B29C65/16; B32B27/00; B32B27/20; B32B27/36

Domestic Patent References:

WO2014007382A1

2014-01-09

Foreign References:

JP2008105430A	2008-05-08
JP2007112127A	2007-05-10
JP2013155277A	2013-08-15
JPS51817B1	1976-01-10
JP2003292752A	2003-10-15
JP4641377B2	2011-03-02
JP2013155278A	2013-08-15

Other References: