Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1996-06-20
1998-07-07
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264 51, 264 53, 264DIG5, 264DIG15, B29C 4420
Patent
active
057763895
ABSTRACT:
Disclosed is a process for making an extruded alkenyl aromatic polymer foam with a thickness of about 1 inch (2.54 cm) or more and having an enhanced cell size. From about 0.2 to about 2.0 percent by weight of a glycerol monoester of a C.sub.8-24 fatty acid is incorporated to increase cell size about 5 percent or more relative to a corresponding foam without the glycerol monoester. The blowing agent is about 50 percent or more of a blowing agent selected from the group consisting of carbon dioxide, 1,1,1,2-tetrafluoroethane, and 1,1,1-trifluoroethane. Further disclosed is an extruded alkenyl aromatic polymer foam obtainable from the process.
REFERENCES:
patent: 4217319 (1980-08-01), Komori
patent: 4229396 (1980-10-01), Suh et al.
patent: 5006568 (1991-04-01), Fukazawa et al.
patent: 5011866 (1991-04-01), Suh
patent: 5064874 (1991-11-01), Motani et al.
patent: 5089533 (1992-02-01), Park
patent: 5462974 (1995-10-01), Lee
patent: 5489407 (1996-02-01), Suh et al.
patent: 5527573 (1996-06-01), Park et al.
Dean Jr. J. Robert
Kuhns Allan R.
The Dow Chemical Company
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