Protection barriers and methods for making and using same
AssigneeGeorgia-Pacific Corporation
InventorsJohn P. Kelly, Richard D. Jordan, Ronald C. Norris, Frederick J. Curcio
Life of this patent
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Abstract
Protection barriers, such as floor protection barriers, and methods for making and using same. The protection barrier can include a base sheet and an energy absorbing layer. The base sheet can have two or more paperboard layers and one or more sizing layers. A first paperboard layer can form a first surface of the base sheet, a second paperboard layer can form a second surface of the base sheet, and the one or more sizing layers can be disposed between the first and second paperboard layers. The energy absorbing layer can be secured to the second paperboard layer.
Claims20
A protection barrier, comprising:
- a base sheet comprising a first paperboard layer, a second paperboard layer, and a sizing layer disposed between the first paperboard layer and the second paperboard layer, wherein the sizing layer has an average oil and grease resistance value of about 6 or greater, as measured according to TAPPI T-559 standard test for Grease Resistance for Paper and Paperboard, and wherein the protection barrier has an oil and grease resistance flotation value of about 3 hours or greater, as measured according to the Georgia-Pacific Flotation Paper Saturation Test STP-415 with automotive brake fluid at a temperature of about 100° C.
A protection barrier, comprising:
- a base sheet comprising a first paperboard layer, a second paperboard layer, and a sizing layer disposed between the first paperboard layer and the second paperboard layer;
- and
- a corrugated layer secured to the base sheet, wherein:
- the first paperboard layer and the second paperboard layer each have a water absorbency of about 1 gram of water per 1 gram of the paperboard layer to about 7 gram of water per 1 gram of the paperboard layer, as measured according to the Cobb test for a time of about 180 seconds and at a temperature of about 23° C.,
- the sizing layer has an average oil and grease resistance value of about 6 to 12, as measured according to TAPPI T-559 standard test for Grease Resistance for Paper and Paperboard,
- the protection barrier has an oil and grease resistance flotation value of about 3 hours to about 24, as measured according to the Georgia-Pacific Flotation Paper Saturation Test STP-415 with automotive brake fluid at a temperature of about 100° C.,
- the protection barrier has a thickness of about 0.2 mm to about 5 mm, and
- the protection barrier has a basis weight of about 300 g/m2 to about 800 g/m2.
A protection barrier, comprising:
- a base sheet comprising at least eight layers sequentially secured to one another, wherein:
- the first layer comprises a first paperboard layer comprising a colorant and forms a first surface of the base sheet;
- the second layer comprises a second paperboard layer;
- the third layer, the fourth layer, the fifth layer, and the sixth layer each comprise a sizing layer;
- the seventh layer comprises a third paperboard layer, and
- the eighth layer comprises a fourth paperboard layer and forms a second surface of the base sheet;
- and
- a corrugated layer secured to the second surface of the base sheet and comprising about 50 flutes per linear meter to about 500 flutes per linear meter, and wherein:
- the third and fourth layers each have an average oil and grease resistance value of about 6 or greater, as measured according to TAPPI T-559 standard test for Grease Resistance for Paper and Paperboard, and
- the protection barrier has an oil and grease resistance flotation value of about 3 hours or greater, as measured according to the Georgia-Pacific Flotation Paper Saturation Test STP-415 with automotive brake fluid at a temperature of about 100° C.
Dependencies are inferred from the claim text.