Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of manufacturing polystyrene foam with polymer processing additives










Image Number 14 for United States Patent #8119701.

Disclosed is a method for making polystyrene foam which utilizes one or more atmospheric gases, particularly combinations of HFCs and CO.sub.2, as the blowing system in combination with a polymer processing aid (PPA), typically an ester that is relatively non-volatile at the extrusion temperature range. The blowing system and the PPA may both be introduced into the molten thermoplastic polystyrene resin or the PPA may be incorporated in the solid source polystyrene resins. The resulting foams will typically exhibit improved dimensional stability at ambient temperatures.








 
 
  Recently Added Patents
Hybrid inflator of airbag
Content shooting apparatus
Plant cell culture for production of natural products with reduced glucosinolate contamination
Authentication and synchronous interaction between a secondary device and a multi-perspective audiovisual data stream broadcast on a primary device geospatially proximate to the secondary devi
Stent delivery system
Hose for transporting refrigerant
Toy launching gun
  Randomly Featured Patents
Processor system and method with combined data left and right shift operation
In situ hybridization solution and process
Optical arrangement for a passive infrared motion detector
Dropseat jumpsuit
Image communication system and method
System for cleaning the interior surface area of a vessel
Pseudo-fusion management during automatic capture verification
Simulative toy vehicle
Use of polymerizable oil for leather fatliquor
Vehicle endgate counterbalance