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公开(公告)号:JPH08295789A
公开(公告)日:1996-11-12
申请号:JP2566196
申请日:1996-02-13
Applicant: TORAY INDUSTRIES
Inventor: SUGA NAOHIKO , ONO KATSUYA , TO TADAO
Abstract: PURPOSE: To obtain a resin compsn. having a good moldability and giving a blow molded product with a uniform wall thickness and a high rigidity. CONSTITUTION: 70-90 pts.wt. polybutylene terephthalate is blended with 30-10 pts.wt. glass fibers of 3 to 20μm in diameter to prepare a blow molding resin compsn.
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公开(公告)号:JPH07108949B2
公开(公告)日:1995-11-22
申请号:JP2514284
申请日:1984-02-15
Applicant: TORAY INDUSTRIES
Inventor: SUGA NAOHIKO , OONO KATSUYA , TO TADAO
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公开(公告)号:JPS6239611B2
公开(公告)日:1987-08-24
申请号:JP17908281
申请日:1981-11-10
Applicant: TORAY INDUSTRIES
Inventor: GOTO EIZO , TO TADAO , KOMURO YOSHUKI
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公开(公告)号:JPS61202827A
公开(公告)日:1986-09-08
申请号:JP4388585
申请日:1985-03-05
Applicant: AISIN SEIKI , TORAY INDUSTRIES
Inventor: INAGAKI ASAO , SAKAKIBARA TAKASHI , TO TADAO , TERAJIMA TAKESHI
Abstract: PURPOSE:To enable to discharge a core mold in a short period of time by contriving molding of a precise hollow product, by a method wherein a core made of resin inside of which is filled with substance such as sand or iron dust is inserted into a mold and the skin is molded on an external circumferential part of the core through injection molding. CONSTITUTION:An open part 3a at one side end of a core material 1 is closed with a plug 4a, a powdery filler 2 such as sand or iron dust is pressed in the inside of the core material 1 through an open part 3b at the other side end so as not to leave a gap behind, the end open part 3b is closed with a plug 4b and a core 5 made of resin is formed. Then the core 5 made of the resin is inserted into a cavity of a mold 6 for skin mold surface and the skin 8 based on injection molding is formed by fixing the core 5 by fitting parts 7a, 7b with the mold. As for the resin for the skin 8, thermoplastic resin such as nylon or polyester is appropriate and it is desirable to make the fusion point of the same is higher than that of the core material 1 and to make quality of the same identical with that of the core material. A hollow molded article is obtained by a method wherein cylindrical end parts 9a, 9b of a product material 9 is cut off along flange parts 10, 11 of the skin and the filler 2 in the inside of the core material 1 is pulled out.
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公开(公告)号:JPS6124447A
公开(公告)日:1986-02-03
申请号:JP14419384
申请日:1984-07-13
Applicant: Toray Industries
Inventor: ONO KATSUYA , SUGA NAOHIKO , TO TADAO
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公开(公告)号:JPS6011947B2
公开(公告)日:1985-03-29
申请号:JP14955577
申请日:1977-12-13
Applicant: TORAY INDUSTRIES
Inventor: OOSHITA HIROSHI , TO TADAO , IIDA HIROSHI
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公开(公告)号:JPS604226B2
公开(公告)日:1985-02-02
申请号:JP6912874
申请日:1974-06-19
Applicant: TORAY INDUSTRIES
Inventor: TANAKA CHIAKI , TO TADAO , YAMAMOTO YOSHUKI , KOMATSU HIDEO , MORIKAWA MASANOBU
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