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US 10,479,849 B2Granted
Low emission propylene-based polymer resins
AssigneeBraskem America, Inc.
InventorsJeffrey Salek, Mark Chappell, Bryan Dawson
Life of this patent
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Abstract
A propylene-based polymer resin is characterized by a low volatile emission signature. For example, the propylene-based polymer resin may have a volatile organic compound content no greater than 125 ppm, a semi-volatile organic compound content no greater than 500 ppm, and a C36 oligomeric content no greater than 250 ppm.
Claims25
A propylene-based polymer resin comprising:
- a volatile organic compound content no greater than 125 ppm;
- a semi-volatile organic compound content no greater than 500 ppm;
- and
- a C36 oligomeric content no greater than 250 ppm, wherein the propylene-based polymer resin is produced utilizing a Ziegler-Natta catalyst.
1 more element
A propylene-based polymer resin comprising:
- a volatile organic compound content no greater than 125 ppm;
- a semi-volatile organic compound content no greater than 500 ppm;
- a C36 oligomeric content no greater than 250 ppm;
- a melt flow rate greater than 30 g/10 min.;
- a Mw/Mn of greater than 5;
- a crystallinity greater than 50%;
- and
- a mesopentad content greater than 92%, wherein the propylene-based polymer resin is produced utilizing a Zeigler-Natta catalyst.
5 more elements
A homopolymer polypropylene resin comprising:
- a volatile organic compound content no greater than 125 ppm;
- a semi-volatile organic compound content no greater than 500 ppm;
- a C36 oligomeric content no greater than 250 ppm;
- a melt flow rate greater than 30 g/10 min.;
- a crystallinity greater than 50%;
- and
- a mesopentad content greater than 92%, wherein the propylene-based polymer resin is produced utilizing a Zeigler-Natta catalyst.
4 more elements
Dependencies are inferred from the claim text.