US 11,591,148 B2 · Liquid repellent film or sheet, and packaging matertal, using same

Abstract

The present invention is a liquid-repellent film or sheet that exhibits an excellent liquid repellency, and a packaging material using the same. The liquid-repellent film or sheet comprises: a substrate layer (2); an adhesive layer (3) that comprises a thermoplastic resin, and is formed on at least one plane of the substrate layer (2); and a liquid-repellent layer (4) that comprises a resin (6) having a liquid-repellent moiety, and hydrophilic particles (5), and is formed on the surface of the adhesive layer (3).

Claims13

Dependent claims

A liquid-repellent film or sheet comprising:

a substrate layer;
an adhesive layer that comprises a thermoplastic resin and hydrophilic silica particles, and is formed on one plane of the substrate layer;
and
a liquid-repellent layer that comprises a resin having a liquid-repellent moiety, and hydrophilic particles, and is formed on a surface of the adhesive layer.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/279,690Filed 30 Aug 2019

Priority

JP JP2018-18214727 Sep 2018

Published

US 2022/0033156 A13 Feb 2022

Granted

28 Feb 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification48 codes

B65D 65/40
Packaging materials of special type or form: applications of laminates for particular packaging purposes
B32B 1/00
Layered products having a non-planar shape
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 15/043
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of metal

Liquid repellent film or sheet, and packaging matertal, using same

Life of this patent

Liquid repellent film or sheet, and packaging matertal, using same

Life of this patent

Abstract

Claims13