The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2024
Filed:
Feb. 27, 2019
Dow Global Technologies Llc, Midland, MI (US);
Pbbpolisur S.r.l., Buenos Aires, AR;
Rohm and Haas Company, Collegeville, PA (US);
Camila Do Valle, Sao Paulo, BR;
Juan Carlos Casarubias, Toluca, MX;
Maximiliano Zanetti, Buenos Aires, AR;
Marlos Giuntini de Oliveira, Sao Paulo, BR;
Jorge Caminero Gomes, Jundiai, BR;
Dow Global Technologies LLC, Midland, MI (US);
PBBPolisur S.R.L., Buenos Aires, AR;
Rohm and Haas Company, Collegeville, PA (US);
Abstract
A heat-shrinkable film which includes an ethylene-based polymer multilayer or monolayer film and a coating on an outer surface of the ethylene-based polymer film. The ethylene-based polymer film having a single layer or a multilayer structure formed from a first layer, a second layer, and at least one inner layer between the first and second layers. The coating including polyurethane which is the polymerized reaction product of: a polyol; and an aromatic isocyanate functional prepolymer. Further, a method of unitizing polymer wrapped primary packages is provided. The method includes wrapping one or more of the primary packages with the heat-shrinkable film with the coating disposed proximal the one or more primary packages and applying thermal energy to reduce the dimensions of the heat-shrinkable film to constrain the primary package within the heat-shrinkable film. The coating serving to alleviate sticking between the heat-shrinkable film and the polymer wrapped primary package.