Stretch-blown plastic container with a handle region made integral and method of production for the plastic container

Patent metadata

Field	Value
Publication number	US-11186403-B2
Application number	US-201816202259-A
Country	US
Kind code	B2
Filing date	Nov 28, 2018
Priority date	Jun 6, 2016
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

A stretch-blown plastic container, includes a container body which encloses a filling volume with a container bottom; a container neck which adjoins an opposite end of the container body, having a container opening and an integrated handle region, the handle region being hollow and joined to the filling volume which is enclosed by the container body; and between the handle region and the container body, a through opening recessed and bordered over its entire periphery by wall parts of the container body and of the handle region which have been welded to one another.

First claim

The invention claimed is:

1. A stretch-blown plastic container, comprising:
a container body which encloses a filling volume, the container body including a container bottom at a first end;
a container neck which adjoins the container body at a second end of the container body which is opposite the first end, the container neck having a container opening; and
an integrated handle region, the handle region being hollow and joined to the filling volume which is enclosed by the container body,
wherein a through opening is recessed between the handle region and the container body, said through opening being bordered by wall parts of the container body which have been welded to one another and by wall parts of the handle region which have been welded to one another such that said through opening is bordered over its entire periphery, wherein the respective wall parts of the container body and the respective wall parts of the handle region have a laser weld seam between them, wherein spaced apart from the weld seam, the through opening is bordered by an edge, the edge being formed by thermal cutting as a rounded bead free of burrs.

2. The plastic container as claimed in claim 1 , wherein the laser weld is formed using a clear-clear weld method.

3. The plastic container as claimed in claim 1 , wherein the container body is configured with a fill volume from 0.5 to 20 liters.

4. The plastic container as claimed in claim 1 , wherein the container body comprises:
one or several layers, and has a percentage by mass of at least 80% which consists of a primary plastic component selected from the group consisting of polyethylene terephthalate, polyactide, polyethylene naphthalate, polyethylene furanoate, polypropylene furanoate, their copolymers and mixtures of these plastics.

5. The plastic container as claimed in claim 1 , comprising:
the container body is made transparent at least partially.

6. The plastic container as claimed in claim 1 , wherein the container body is configured with a fill volume from 0.7 to 10 liters.

7. The plastic container as claimed in claim 1 , wherein the container body is configured with a fill volume from 0.9 to 3 liters.

8. The plastic container as claimed in claim 1 , wherein the rounded bead is wider than the material thickness of the wall parts of the container body which have been welded together and wider than the material thickness of the wall parts of the handle region which have been welded together.

Assignees

• Alpla Werke Alwin Lehner Gmbh & Co Kg

Inventors

• Demir Adem

Classifications

• B29C49/08 Primary

  Biaxial stretching during blow-moulding · CPC title

• B29C49/482

  with means for moulding parts of the parisons in an auxiliary cavity, e.g. moulding a handle · CPC title

• B65D1/02 Primary

  Bottles or similar containers with necks or like restricted apertures, designed for pouring contents (thermally-insulated containers B65D81/38, A47J41/00; {feeding-bottles A61J9/00}) · CPC title

• B65D1/40

  Details of walls (other container details B65D23/00, B65D25/00) · CPC title

• B65D25/2811

  Vertical, e.g. U-shaped · CPC title