Squeeze bottle

Patent metadata

Field	Value
Publication number	US-11167889-B2
Application number	US-201816603956-A
Country	US
Kind code	B2
Filing date	Apr 13, 2018
Priority date	Apr 13, 2017
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

The present invention relates to a squeeze bottle integrally including a container body including a housing portion for housing a liquid composition and a spout connected to the housing portion; and a lid joined to the container body so as to seal an opening of the spout, in which the container body contains a resin containing cyclic olefins and polyethylenes.

First claim

The invention claimed is:

1. A squeeze bottle integrally comprising:
a container body including a housing portion for housing a liquid composition and a spout connected to the housing portion; and
a lid joined to the container body so as to seal an opening of the spout,
wherein the container body contains a resin containing cyclic olefins and polyethylenes, a total content of the cyclic olefins in a resin layer containing the cyclic olefins and the polyethylenes in contact with the liquid composition is 55% to 99% by mass based on a total amount of the resin containing the cyclic olefins and the polyethylenes.

2. The squeeze bottle according to claim 1 , wherein an area of the opening of the spout is 0.15 to 20.0 mm 2 .

3. The squeeze bottle according to claim 1 , wherein a compressive strength on a side surface of the housing portion is 20 to 250 N/mm.

4. The squeeze bottle according to claim 1 , wherein a maximum value of light transmittance in a visible light region of a wavelength of 400 to 700 nm of the container body is 50% or more.

5. The squeeze bottle according to claim 1 , wherein the container body includes two or more layers of an inner layer and an outer layer, and the inner layer in contact with the liquid composition contains a resin containing cyclic olefins and polyethylenes.

6. The squeeze bottle according to claim 1 , wherein the polyethylenes are low-density polyethylene and/or linear low-density polyethylene.

7. The squeeze bottle according to claim 1 , wherein the liquid composition is an ophthalmic composition.

8. The squeeze bottle according to claim 1 , wherein the total content of the cyclic olefins in a resin layer containing the cyclic olefins and the polyethylenes in contact with the liquid composition is 70% to 99% by mass based on a total amount of the resin containing the cyclic olefins and the polyethylenes.

Assignees

• Rohto Pharma

Inventors

• Ikeda Naohiro
• Koshiro Hiroyuki

Classifications

• A61J1/1475

  Inlet or outlet ports · CPC title

• A61J1/1412 Primary

  Containers with closing means, e.g. caps · CPC title

• A61J1/05 Primary

  for collecting, storing or administering blood, plasma or medical fluids {(multiple bags systems for separating or storing blood components A61M1/0209); Infusion or perfusion containers} · CPC title

• Y02W30/80

  Packaging reuse or recycling, e.g. of multilayer packaging (bio-packaging Y02W90/10) · CPC title

• A61J1/067 Primary

  Flexible ampoules, the contents of which are expelled by squeezing · CPC title