Masterbatch Compositions and Their Use
AssigneeMilliken & Company
InventorsPhilip Adetunji, Brian Egan
Life of this patent
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Abstract
The present disclosure relates broadly to high barrier polyolefin compositions and masterbatch compositions comprising a synergistic combination of a nucleating agent and a hydrocarbon resin and use thereof for preparing barrier layers and films having barrier properties suitable for packaging applications.
Claims25
A high barrier polyolefin composition comprising:
- a nucleating agent in an amount of from 0.01% w/w to 1% w/w;
- a hydrocarbon resin in an amount of from 0.1% w/w to 5% w/w,
- optionally one or more additive components, and
- a polyethylene.
A masterbatch comprising a nucleating agent, a hydrocarbon resin and a polyethylene, wherein:
- the nucleating agent is present in the masterbatch in an amount of from about 0.2% w/w to about 15% w/w;
- the hydrocarbon resin is present in the masterbatch in an amount of from about 2.5% w/w to about 80% w/w;
- and
- the polyethylene is present in the masterbatch in an amount greater than about 5% w/w,
- when used to form a high barrier polyolefin composition comprising:
- the nucleating agent in an amount of from about 0.01% w/w to about 1% w/w;
- and
- the hydrocarbon resin in an amount of from about 0.1% w/w to about 7% w/w.
A masterbatch comprising a nucleating agent, a hydrocarbon resin and a polyethylene, wherein:
- the nucleating agent is present in the masterbatch in an amount of from 0.2% w/w to about 15% w/w;
- the hydrocarbon resin is present in the masterbatch in an amount of from about 25% w/w to about 55% w/w;
- and
- the polyethylene is present in the masterbatch in an amount greater than about 20% w/w.
A kit comprising a nucleating agent masterbatch and a hydrocarbon resin masterbatch, wherein:
- the nucleating agent is present in the nucleating agent masterbatch in an amount of from about 0.1% w/w to about 30% w/w;
- and
- the hydrocarbon resin is present in the hydrocarbon resin masterbatch in an amount of from about 5% w/w to about 80% w/w,
- when used to form a high barrier polyolefin composition comprising:
- the nucleating agent in an amount of from 0.01% w/w to 1% w/w;
- and
- the hydrocarbon resin in an amount of from 0.1% w/w to 5% w/w,
- wherein the nucleating agent masterbatch and the hydrocarbon resin masterbatch are used in a ratio of about 5:1 to about 1:60.
A kit comprising a nucleating agent mixture and a hydrocarbon resin masterbatch, wherein:
- the nucleating agent mixture comprises a nucleating agent and a polyolefin;
- and
- the hydrocarbon resin is present in the hydrocarbon resin masterbatch in an amount of from about 5% w/w to about 80% w/w,
- when used to form a high barrier polyolefin composition comprising:
- the nucleating agent in an amount of from 0.01% w/w to 1% w/w;
- and
- the hydrocarbon resin in an amount of from 0.1% w/w to 5% w/w.
Dependencies are inferred from the claim text.