Patent ID: 9193838
Filing Date: 2015-11-24
Classification: B29B,C08J,C08K,C08L

Abstract:
1. An additive concentrate for a polymer consisting essentially of: at least one crystalline or amorphous primary polymer additive present in a total amount of between about 25 wt. % and about 90 wt. % of the 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 75 wt. % of the additive concentrate, the primary carrier polymer having a primary carrier-polymer melting temperature below the crystalline or amorphous primary polymer-additive melting temperature; wherein the concentrate, the primary polymer additive and the primary carrier polymer have been processed at a temperature lower than the primary polymer-additive melting temperature and higher than, or equal to, the primary carrier-polymer melting temperature, and wherein the additive concentrate is in the form of pellets.