Container with synthetic resin window, preform, and preform injection molding apparatus
US-2018009150-A1 · Jan 11, 2018 · US
Container with synthetic resin window, preform, and preform injection molding apparatus
US10538025B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10538025-B2 |
| Application number | US-201715674587-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 11, 2017 |
| Priority date | Nov 30, 2012 |
| Publication date | Jan 21, 2020 |
| Grant date | Jan 21, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
To solve a problem associated with formation of a transparent window portion in a biaxially stretch blow molded container by a nozzle structure of an injection molding apparatus, provided is a biaxially stretch blow molded container formed with a clearly transparent window portion in longitudinal strip shape by effectively preventing mixture of colored resin to window portion. Injection molding apparatus includes in nozzle portion a longitudinal groove flow path, wherein a transparent B resin flows. By, for example, reducing and increasing, respectively, the width and depth of the longitudinal groove flow path on the downstream side, and engraving slits in an inner mandrel and even in a front end portion of a stopper pin, flowability of the B resin in a horizontal direction is enhanced.
First claim
Opening claim text (preview).
The invention claimed is: 1. An injection molded test-tube-shaped preform that is subjected to biaxial stretch blow molding, the preform comprising a circumferential wall including a longitudinal strip-shaped portion that is made of a transparent or a semi-transparent resin and that is formed in a longitudinal strip shape in a circumferentially predetermined position in the circumferential wall over a predetermined height range, wherein the preform includes a mouth tubular portion, a trunk portion having a cylindrical shape, and a bottom portion, and wherein the longitudinal strip-shaped portion is formed over an entire height range measured from a bottom wall of the bottom portion to an upper end of the mouth tubular portion. 2. The preform of claim 1 , wherein in the bottom wall of the bottom portion, the longitudinal strip-shaped portion is arranged from a peripheral edge toward a center and beyond a center position of the bottom wall, and wherein a terminal portion of the longitudinal strip-shaped portion is placed between the peripheral edge of the bottom wall and the center position of the bottom wall.
Assignees
Inventors
Classifications
- B29B11/14Primary
characterised by structure or composition · CPC title
- B29C49/06Primary
Injection blow-moulding · CPC title
having tangentially different components within one layer, e.g. longitudinal stripes · CPC title
- B65D1/0207Primary
characterised by material, e.g. composition, physical features · CPC title
Multi-way nozzles specially adapted therefor · CPC title
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Frequently asked questions
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- What does patent US10538025B2 cover?
- To solve a problem associated with formation of a transparent window portion in a biaxially stretch blow molded container by a nozzle structure of an injection molding apparatus, provided is a biaxially stretch blow molded container formed with a clearly transparent window portion in longitudinal strip shape by effectively preventing mixture of colored resin to window portion. Injection molding…
- Who is the assignee on this patent?
- Soyama Hideaki, Ishii Yusuke, Yoshino Kogyosho Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B29B11/14. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 21 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).