Invention Grant
- Patent Title: Method for making shapeable microcellular poly lactic acid articles
- Patent Title (中): 制造可塑性微孔聚乳酸制品的方法
-
Application No.: US12673161Application Date: 2008-08-15
-
Publication No.: US08926876B2Publication Date: 2015-01-06
- Inventor: Vipin Kumar , Krishna V. Nadella , Stephen Probert
- Applicant: Vipin Kumar , Krishna V. Nadella , Stephen Probert
- Applicant Address: US WA Seattle
- Assignee: University of Washington through its Center for Commercialization
- Current Assignee: University of Washington through its Center for Commercialization
- Current Assignee Address: US WA Seattle
- Agency: Christensen O'Connor Johnson Kindness PLLC
- International Application: PCT/US2008/073360 WO 20080815
- International Announcement: WO2009/023848 WO 20090219
- Main IPC: B29C44/34
- IPC: B29C44/34 ; C08J9/12
Abstract:
A method for making a shapeable article from poly(lactic acid) includes treating solid poly(lactic acid) that results in the solid poly(lactic acid) having a crystallinity of at least 20% by weight based on the weight of the solid poly(lactic acid) and a gas concentration of 6% to 16% by weight based on the weight of the solid poly(lactic acid); and heating the solid poly(lactic acid) having said minimum crystallinity and gas concentration to produce a cellular poly(lactic acid) article that is shapeable. The shapeable cellular poly(lactic acid) article is advantageous in that the article can be further shaped by heat and/or pressure (or vacuum), such as via thermoforming, into a variety of useful products.
Public/Granted literature
- US20110003133A1 METHOD FOR MAKING SHAPEABLE MICROCELLULAR POLY LACTIC ACID ARTICLES Public/Granted day:2011-01-06
Information query
