Invention Application
- Patent Title: THERMOFORMABLE BEADED ARTICLES WITH REMOVABLE STABILIZING LAYER AND METHODS THEREOF
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Application No.: US16336999Application Date: 2017-10-06
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Publication No.: US20200031092A1Publication Date: 2020-01-30
- Inventor: Christopher B. Walker, Jr. , Matthew R.C. Atkinson , Mary M. Caruso Dailey , John C. Clark , Vivek Krishnan , Alexander J. Kugel , Steven J. McMan , Abdullahi A. Mohamud
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- International Application: PCT/US2017/055476 WO 20171006
- Main IPC: B32B5/16
- IPC: B32B5/16 ; B32B5/22

Abstract:
Described herein is an article comprising (i) bead film comprising a binder resin layer and a plurality of microspheres partially embedded in the binder resin layer such that a portion of the microspheres outwardly protrude a first distance from the surface of the binder resin layer; (ii) a stabilizing layer disposed on the outwardly protruding microspheres opposite the binder resin layer, wherein the stabilizing layer intimately conforms to the protruding microspheres, and wherein the stabilizing layer has a Tg less than 100 C and a storage modulus at 150° C. of at least 1.5 MPa; and (iii) a release agent, wherein (a) the binder resin layer comprises the release agent, (b) the stabilizing layer comprises the release agent, and/or (c) an intermediate layer comprises the release agent, wherein the intermediate layer is disposed between the monolayer of microspheres and the stabilizing layer, with the proviso that when the binder resin layer has a fluorine content along the polymeric backbone greater than 65 wt %, the stabilizing layer comprises a release agent selected from a silicone and a fluoropolymer. Also disclosed herein are methods of making thermoformable bead films.
Public/Granted literature
- US11691381B2 Thermoformable beaded articles with removable stabilizing layer and methods thereof Public/Granted day:2023-07-04
Information query