基本信息:
- 专利标题： Uniform small cell foams and a continuous process for making same
- 申请号：US09994418 申请日：2001-11-27
- 公开(公告)号：US20020137808A1 公开(公告)日：2002-09-26
- 发明人： Mark David Gehlsen , David Loren Vall , Craig Allen Perman , Bonnie Weiskopf Albrecht
- 申请人： 3M Innovative Properties Company
- 申请人地址： null
- 专利权人： 3M Innovative Properties Company
- 当前专利权人： 3M Innovative Properties Company
- 当前专利权人地址： null
- 主分类号： C08J009/00
- IPC分类号： C08J009/00
摘要：
A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.