Nucleating agent for nylon system

Abstract

The present invention provides a nucleating agents comprising: a) ethylene-acrylic acid ionomers selected from the group consisting of ethylene-acrylic acid calcium ionomers and ethylene-acrylic acid zinc ionomers and combinations thereof; wherein the ionomers have a molecular weight between about 1000 and about 10000; b) talcum; and c) ethylene-acrylic acid copolymers. The present invention also provides plastic compositions comprising: a) nylon and b) a nucleating agent, as well as a processes of making such plastic compositions. The present invention also provides nucleating agents comprising only one or two of the above types of compounds, as well as plastic compositions comprising such nucleating agents and processes of making such a plastic compositions.

1 . A nucleating agent comprising: a) ethylene-acrylic acid ionomers selected from the group consisting of ethylene-acrylic acid calcium ionomers and ethylene-acrylic acid zinc ionomers and combinations thereof; wherein the ionomers have a molecular weight between about 1000 and about 10000; b) talcum; and c) ethylene-acrylic acid copolymers. 
     
     
         2 . The nucleating agent of  claim 1 , wherein the ethylene-acrylic acid ionomers consist essentially of the ethylene-acrylic acid calcium ionomers sold under the trademark ACLYN® 204 and the ethylene-acrylic acid copolymers consist essentially of ethylene-acrylic acid copolymers sold under the trademark A-C® 540A. 
     
     
         3 . The nucleating agent of  claim 2 , wherein the ethylene-acrylic acid calcium ionomers are present at a concentration of between about 35 weight % and about 45 weight % of the total weight of the nucleating agent; wherein the talcum is present at a concentration of between about 15 weight % and about 25 weight % of the total weight of the nucleating agent; and wherein the ethylene-acrylic acid copolymers are present at a concentration of between about 35 weight % and about 45 weight % of the total weight of the nucleating agent. 
     
     
         4 .- 26 . (canceled)