Invention Grant
- Patent Title: Polylactic acid shrink films and methods of casting same
- Patent Title (中): 聚乳酸收缩膜及其铸造方法
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Application No.: US11561771Application Date: 2006-11-20
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Publication No.: US07713601B2Publication Date: 2010-05-11
- Inventor: Edward Carl Tweed , Joseph B. McDaniel
- Applicant: Edward Carl Tweed , Joseph B. McDaniel
- Applicant Address: US OH Columbus
- Assignee: Plastic Suppliers, Inc.
- Current Assignee: Plastic Suppliers, Inc.
- Current Assignee Address: US OH Columbus
- Agency: Sunit Talapatra Foley & Lardner LLP
- Agent Gilberto M. Villacorta
- Main IPC: B65B53/00
- IPC: B65B53/00 ; F16B4/00
Abstract:
A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.
Public/Granted literature
- US20070116909A1 POLYLACTIC ACID SHRINK FILMS AND METHODS OF CASTING SAME Public/Granted day:2007-05-24
Information query
