US 12,509,610 B2 · Coated films

Abstract

According to one or more embodiments disclosed herein, a coated film may include a polyolefin film and a coating. The polyolefin film may include an ethylene-based polymer. The coating may include an outer surface and an internal surface. The internal surface may be in contact with the polyolefin film. The coating may include polyurethane. The outer surface of the coating may be an outer surface of the coated film. At least a portion of a surface of the coated film that includes the coating may have a gloss of from 40 units to 100 units at 60° or a matte finish of 15 units to 30 units at 85°. The polyurethane may be formed from an isocyanate component having an isocyanate (NCO) content greater than 10%.

Claims13

Dependent claims

A coated film comprising:

a polyolefin film comprising an ethylene-based polymer;
a coating comprising an outer surface and an internal surface, the internal surface in contact with the polyolefin film, wherein the coating comprises polyurethane, and wherein the outer surface of the coating is an outer surface of the coated film;
wherein at least a portion of a surface of the coated film that comprises the coating has:
a gloss of from 40 units to 100 units at 60°;
or
a matte finish of 15 units to 30 units at 85°;
and
wherein the polyurethane is formed from an isocyanate component having an isocyanate (NCO) content greater than 10%
wherein the polyurethane is a reaction product of a polyurethane precursor comprising:
an isocyanate component comprising an isocyanate-terminated prepolymer;
and
an isocyanate-reactive component comprising at least one bio-based polyol.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/973,946Filed 22 May 2019 · us provisional application

Priority

11 Jun 2018

Published

US 2021/0246275 A112 Aug 2021

Granted

30 Dec 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification26 codes

C09D 175/04
Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers: polyurethanes
B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
C08G 18/10
Processes: prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/12
Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step: using…

Coated films

Life of this patent

Coated films

Life of this patent

Abstract

Claims13