Invention Grant
- Patent Title: Methods of manufacture of polylactic acid foams
- Patent Title (中): 聚乳酸泡沫的制造方法
-
Application No.: US12449098Application Date: 2008-01-30
-
Publication No.: US08283389B2Publication Date: 2012-10-09
- Inventor: Michael Ralph Juergen Witt , Samir Shah
- Applicant: Michael Ralph Juergen Witt , Samir Shah
- Applicant Address: NZ Canterbury
- Assignee: Biopolymer Network Limited
- Current Assignee: Biopolymer Network Limited
- Current Assignee Address: NZ Canterbury
- Agency: Nixon & Vanderhye
- Priority: NZ552936 20070130
- International Application: PCT/IB2008/050321 WO 20080130
- International Announcement: WO2008/093284 WO 20080807
- Main IPC: C08J9/18
- IPC: C08J9/18 ; C08L67/04
Abstract:
Method of forming a composition comprising impregnated polylactic acid (PLA) resin beads, by impregnating PLA resin beads with CO2. The method is carried out by contacting the beads with liquid CO2, and holding the impregnated beads at a temperature and pressure that prevents the beads from foaming while allowing the level of impregnated CO2 to reduce to about 4 to 20 weight % relative to the total weight of the beads and CO2.
Public/Granted literature
- US20100029793A1 METHODS OF MANUFACTURE OF POLYLACTIC ACID FOAMS Public/Granted day:2010-02-04
Information query
