A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.

The polymer blend includes at least 90% by weight low density polyethylene (LDPE) polymer and from 1% to 10% by weight acid copolymer based on the total weight of the polymer blend. In the polymer blend, the LDPE polymer has a melt index (I? 2 #191) from 2 g/10 min to 8 g/10 min as determined in accordance with ASTM D1238, and a molecular weight distribution from 5 to 10.5. In the polymer blend, the acid copolymer is a polymerized reaction product of: at least 60% by weight ethylene, based on the total weight of the monomers present in the ethylene acid copolymer; from 1% to 20% by weight monocarboxylic acid monomer, based on the total weight of the monomers present in the ethylene acid copolymer; and from 0 to 20% by weight alkyl acrylate monomer, based on the total weight of the monomers present in the ethylene acid copolymer.

The polymer blend includes at least 90% by weight low density polyethylene (LDPE) polymer and from 1% to 10% by weight acid copolymer based on the total weight of the polymer blend. In the polymer blend, the LDPE polymer has a melt index (I? 2 #191) from 2 g/10 min to 8 g/10 min as determined in accordance with ASTM D1238, and a molecular weight distribution from 5 to 10.5. In the polymer blend, the acid copolymer is a polymerized reaction product of: at least 60% by weight ethylene, based on the total weight of the monomers present in the ethylene acid copolymer; from 1% to 20% by weight monocarboxylic acid monomer, based on the total weight of the monomers present in the ethylene acid copolymer; and from 0 to 20% by weight alkyl acrylate monomer, based on the total weight of the monomers present in the ethylene acid copolymer.

Polyethylene composition with improved balance of impact resistance at low temperatures and Environmental Stress Cracking Resistance (ESCR), particularly suited for producing protective coatings on metal pipes, said composition having the following features:

1) density from 0.938 to 0.948 g/cm.sup.3;
2) ratio MIF/MIP from 15 to 25;
3) MIF from 30 to 45 g/10 min.;
4) Mz equal to or greater than 1000000 g/mol;
5) LCBI equal to or greater than 0.55.

Polyethylene composition with improved balance of impact resistance at low temperatures and Environmental Stress Cracking Resistance (ESCR), particularly suited for producing protective coatings on metal pipes, said composition having the following features:

1) density from 0.938 to 0.948 g/cm.sup.3;
2) ratio MIF/MIP from 15 to 25;
3) MIF from 30 to 45 g/10 min.;
4) Mz equal to or greater than 1000000 g/mol;
5) LCBI equal to or greater than 0.55.

Anti-blocking compositions are disclosed that include a wax or mixture of waxes effective to reduce, retard or prevent blocking of a viscoelastic solid when applied to the surface of such a solid. Also disclosed are methods of reducing, retarding or preventing blocking of a viscoelastic solid, and the products of those methods which are viscoelastic solids resistant to blocking.

Anti-blocking compositions are disclosed that include a wax or mixture of waxes effective to reduce, retard or prevent blocking of a viscoelastic solid when applied to the surface of such a solid. Also disclosed are methods of reducing, retarding or preventing blocking of a viscoelastic solid, and the products of those methods which are viscoelastic solids resistant to blocking.

Anti-blocking compositions are disclosed that include a wax or mixture of waxes effective to reduce, retard or prevent blocking of a viscoelastic solid when applied to the surface of such a solid. Also disclosed are methods of reducing, retarding or preventing blocking of a viscoelastic solid, and the products of those methods which are viscoelastic solids resistant to blocking.

The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)2.0 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), where A=2.4010.sup.5 g/mole, and B=8.0010.sup.3 (g/mole)/(dg/min); and c) a G versus 12 relationship: GC+D(I2), where C=127.5 Pa, and D=1.25 Pa/(dg/min).

The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)2.0 dg/min; b) a G versus I2 relationship: GC+D(I2), where C=127.5 Pa, and D=1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G relationship: Clext.E+FG, where E=0.20 wt %, and F=0.060 wt %/Pa; and d) a weight fraction (w) of molecular weight greater than 10.sup.6 g/mole, based on the total weight of polymer, and as determined by GPC(abs), that meets the following relationship: w<I+J(I2), where I=0.080, and J=4.0010.sup.3 min/dg.

The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)2.0 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), where A=2.4010.sup.5 g/mole, and B=8.0010.sup.3 (g/mole)/(dg/min); and c) a G versus 12 relationship: GC+D(I2), where C=127.5 Pa, and D=1.25 Pa/(dg/min).

The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)2.0 dg/min; b) a G versus I2 relationship: GC+D(I2), where C=127.5 Pa, and D=1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G relationship: Clext.E+FG, where E=0.20 wt %, and F=0.060 wt %/Pa; and d) a weight fraction (w) of molecular weight greater than 10.sup.6 g/mole, based on the total weight of polymer, and as determined by GPC(abs), that meets the following relationship: w<I+J(I2), where I=0.080, and J=4.0010.sup.3 min/dg.