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US 2008/0076857 A1Published application
High concentration pelletized additive concentrates for polymer
AssigneeIngenia Polymers Corp.
InventorsSalvatore D'Uva, Zach Charlton, John Lefas
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Abstract
High concentration pelletized additive concentration or polymer stabilization agent or blends, and their preparations, used in various polymerization processes to enhance stability.
Claims14
A pelletized additive concentrate for a polymer comprising:
- at least one primary polymer additive present in a total amount of between about 20 wt. % and about 90 wt. % of the pelletized additive concentrate, the primary polymer additive having a primary polymer-additive melting temperature between about 100° C. and about 200° C.;
- and
- at least one primary carrier polymer present in a total amount of between about 10 wt. % and about 80 wt. % of the pelletized additive concentrate, the primary carrier polymer having a primary carrier-polymer melting temperature below the primary polymer-additive melting temperature.
A pelletized additive concentrate for a polymer comprising:
- a blend of two or more primary polymer additives present in a total amount of between about 20 wt. % and about 90 wt. % of the pelletized additive concentrate, each primary polymer additive having a primary polymer-additive melting temperature between about 100° C. and about 200° C.;
- and
- a blend of two or more primary carrier polymers present in a total amount of between about 10 wt. % and about 80 wt. % of the pelletized additive concentrate, each primary carrier polymer having a primary carrier-polymer melting temperature below the primary polymer-additive melting temperature;
- wherein the pelletized additive concentrate is processed at a temperature lower than the primary polymer-additive melting temperature but higher than, or equal to, the primary carrier-polymer melting temperature.
1 more element
Dependencies are inferred from the claim text.