MODIFICATION OF RHEOLOGICAL AND VOLATILES PROPERTIES OF THERMOPLASTIC POLYMERS VIA POST REACTOR CHEMICAL TREATMENTS
Publication Date: 2004-May-25
The IP.com Prior Art Database
The invention relates to an improved reactive extrusion process for manufacturing of controlled rheology polymers by contacting the polymer with oxidizing agents such as oxygen, peroxides and/or ozone containing gases. The resultant polymer has a lower level of undesirable volatiles, fewer oligomers and more uniform rheological properties related to the polymer molecular weight and elasticity. Also, a low cost of manufacturing of branched, high melt strength polymer with lower levels of volatiles is possible.