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US 6,746,736 B2Granted
Oil and grease resistant coating composition
AssigneeActinic, Inc.
InventorsTimothy Jon Leeper, Joy Michelle Thomas
Life of this patent
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Abstract
The present invention is a composition for use as an oil and grease resistant coating for packaging materials including a radiation sensitive monomer; a photopolymerization initiator; and an additive, wherein the additive preferably is a chlorinated paraffin. Preferably, the composition is used to treat the surface of a paper or paperboard substrate and the substrate preferably is used subsequently in the manufacture of packaging materials, such as pet food bags.
Claims7
A pet food bag comprising:
- a. an outer-layer formed of a paper substrate wherein said paper substrate is treated with a varnish composition;
- b. the varnish composition consisting essentially of:
- i. a radiation sensitive monomer selected from the group consisting of acrylic esters, methacrylic esters, acrylic amides, and methacrylic amides in amounts from about 20%-90% by weight;
- ii. a non-fluorinated chlorinated paraffin additive present in amounts from about 5%-40% by weight and solubilized in the composition;
- and
- iii. a photoinitiator present in amounts from about 1%-20% by weight.
3 more elements
A pet food bag comprising:
- a. an inner paper substrate layer;
- b. an outer paper substrate layer;
- c. a middle paper substrate layer between the inner and outer layers;
- and
- d. a coating applied to at least the outer layer, the consisting essentially of:
- i. a radiation sensitive monomer selected from the group consisting of acrylic esters, methacrylic esters, acrylic amides, and methacrylic amides in amounts from about 20%-90% by weight;
- ii. a non-fluorinated, chlorinated paraffin additive present in amounts from about 5%-40% by weight and solubalized in compositions;
- iii. a photoinitiator present in amounts from about 1%-20% by weight.
5 more elements
Dependencies are inferred from the claim text.