Back to results
US 12,606,958 B2Granted
Oil resistant article
AssigneeSWM Holdings US, LLC
InventorsFlávia Queiroz Cerqueira, Vincent Motin
Life of this patent
Estimating the term…
Abstract
An oil resistant article is described that does not contain any fluorocarbon compounds. The oil resistant article includes a basesheet formed from pulp fibers. The basesheet is coated on at least one surface with an oil resistant coating. The basesheet is formed without having to use any highly refined fibers. Various chemical treatments are incorporated into the basesheet and the oil resistant coating is formed from particularly selected polymers that produces an oil resistant article having a relatively high permeability and excellent oil resistant properties.
Claims20
An oil resistant article comprising:
- a paper basesheet comprising pulp fibers, the basesheet having a basis weight of from about 18 gsm to about 40 gsm, the basesheet including a first side and a second and opposite side;
- and
- an oil resistant coating on at least one side of the basesheet, the oil resistant coating comprising a carboxymethyl cellulose, the carboxymethyl cellulose having a viscosity of less than about 800 cPs and greater than about 5 cPs;
- wherein the oil resistant article contains fluorocarbon compounds in an amount of less than 0.05% by weight, and wherein the oil resistant article has a Gurley permeability of less than about 50,000 s/100 mL and greater than about 3,000 s/100 mL.
1 more element
Dependencies are inferred from the claim text.