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. 19, 1997
Filed:
May. 25, 1994
John G Bradfute, Greenville, SC (US);
Blaine Clemons Childress, Inman, SC (US);
Marvin Havens, Greer, SC (US);
Cedric Michael Lulham, Gray Court, SC (US);
Ronald D Moffitt, Duncan, SC (US);
Martindale Nelson, Greer, SC (US);
Lawrence R Norpoth, Simpsonville, SC (US);
William Peyton Roberts, Simpsonville, SC (US);
Gloria Garcia Toney, Greer, SC (US);
George Dean Wofford, Duncan, SC (US);
W.R. Grace & Co.-Conn., Duncan, SC (US);
Abstract
Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of a thermoplastic, homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, as well as many others. The homogeneous alpha-olefin/vinyl aromatic copolymer may be present in a monolayer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers therto. Finally, also included is an RF-sealable film comprising such copolymers.