A waterproof architectural element comprising an elongated panel member composed of compressed fibrous material having a first planar surface and an opposed second planar surface. At least one elongated cellulose layer is composed of Kraft paper having paper basis weight between 30 and 90 pounds and an average thickness between 0.003 and 0.009 inches. The elongated substrate has a first planar face and an opposed second planar face. A polymeric layer overlies at least a portion of the first planar face of the elongated substrate and comprises a polymeric blend of between 50 and 80 wt. % styrene butadiene copolymer and 0.2 and 3 wt. % of a cellulose ether compound. The cellulose ether compound comprises hydrogen or an alkyl group selected from the group consisting of methyl, ethyl, hydroxyethyl, hydroxypropyl carboxymethyl, hydroxyethyl methyl, hydroxypropyl and between 30 and 50 wt. % calcium carbonate and water.

A waterproof architectural element comprising an elongated panel member composed of compressed fibrous material having a first planar surface and an opposed second planar surface. At least one elongated cellulose layer is composed of Kraft paper having paper basis weight between 30 and 90 pounds and an average thickness between 0.003 and 0.009 inches. The elongated substrate has a first planar face and an opposed second planar face. A polymeric layer overlies at least a portion of the first planar face of the elongated substrate and comprises a polymeric blend of between 50 and 80 wt. % styrene butadiene copolymer and 0.2 and 3 wt. % of a cellulose ether compound. The cellulose ether compound comprises hydrogen or an alkyl group selected from the group consisting of methyl, ethyl, hydroxyethyl, hydroxypropyl carboxymethyl, hydroxyethyl methyl, hydroxypropyl and between 30 and 50 wt. % calcium carbonate and water.

The present invention provides a book paper suitable for both inkjet and offset printing. The inventive printing paper comprises a base substrate with a grammage of below 100 gsm comprising at least 50 wt % mechanical cellulosic pulp fibers and having a total filler content of below 15 wt %. The substrate is surface treated with a composition comprising pigments in a range of 15-30 wt %, starch in a range of 20-40 wt %, latex in a range of 10-20 wt % and a multivalent metal salt in a range of 10-30 wt %.

The present invention provides a book paper suitable for both inkjet and offset printing. The inventive printing paper comprises a base substrate with a grammage of below 100 gsm comprising at least 50 wt % mechanical cellulosic pulp fibers and having a total filler content of below 15 wt %. The substrate is surface treated with a composition comprising pigments in a range of 15-30 wt %, starch in a range of 20-40 wt %, latex in a range of 10-20 wt % and a multivalent metal salt in a range of 10-30 wt %.

A fire-resistant retail product packaging, such as sleeves, pouches, wraps, and the like, that is capable of containing fires of high intensity for products such as lithium-ion batteries. The fire-resistant paper comprises Kraft paper with a preferred eight of 40 to 60 pounds/3,000 ft.sup.2, and a fire-resistant ink applied to each side of the Kraft paper. The fire-resistant ink includes an acrylic resin, a dispersant, and a boron compound, and optionally, talc and a molybdate compound. When heated, the fire-resistant ink preferably converts the Kraft paper into a non-combustible and heat shielding substance.

A fire-resistant retail product packaging, such as sleeves, pouches, wraps, and the like, that is capable of containing fires of high intensity for products such as lithium-ion batteries. The fire-resistant paper comprises Kraft paper with a preferred eight of 40 to 60 pounds/3,000 ft.sup.2, and a fire-resistant ink applied to each side of the Kraft paper. The fire-resistant ink includes an acrylic resin, a dispersant, and a boron compound, and optionally, talc and a molybdate compound. When heated, the fire-resistant ink preferably converts the Kraft paper into a non-combustible and heat shielding substance.

Oil and grease resistant paper products are disclosed that include a substrate and, on at least one side of the substrate, a continuous layer of a barrier coating, the barrier coating comprising a binder system and a pigment. The barrier coating, when applied to the substrate and dried to form a barrier layer, has a Pigment Volume Concentration (PVC) that is below a Critical Pigment Volume Concentration (CPVC) of the barrier coating, providing a continuous three-dimensional film of the binder system. In some implementations the binder system comprising a latex and a natural binder and/or the paper product further includes a topcoat disposed on a side of the barrier coating opposite the substrate.

Oil and grease resistant paper products are disclosed that include a substrate and, on at least one side of the substrate, a continuous layer of a barrier coating, the barrier coating comprising a binder system and a pigment. The barrier coating, when applied to the substrate and dried to form a barrier layer, has a Pigment Volume Concentration (PVC) that is below a Critical Pigment Volume Concentration (CPVC) of the barrier coating, providing a continuous three-dimensional film of the binder system. In some implementations the binder system comprising a latex and a natural binder and/or the paper product further includes a topcoat disposed on a side of the barrier coating opposite the substrate.

An impregnate with antistatic properties for use in laminates or for coating wood-based panels is disclosed. A resin used for impregnating and/or coating paper may include carbon-based particles, at least one compound of the general formula (Ia) R.sup.1.sub.aSiX.sub.(4-a), R.sup.3.sub.cSiX.sub.(4-c)(II), and inorganic particles. X is methoxy, ethoxy, n-propoxy or i-propoxy. R.sup.1 is an organic radical selected from the group including methyl, ethyl, propyl, or vinyl, and has at least one functional group Q.sub.1, selected from the group including acrylic, acryloxy, methacrylic, methacyloxy, or epoxy. R.sup.3 is a non-hydrolyzable organic radical selected from the group including C1-C10 alky, C6-10 aryl, wherein C is 1, 2, or 3, and the inorganic particles have a size between 2 nm and 400 nm.

An impregnate with antistatic properties for use in laminates or for coating wood-based panels is disclosed. A resin used for impregnating and/or coating paper may include carbon-based particles, at least one compound of the general formula (I) R.sup.1.sub.aR.sup.2.sub.bSiX.sub.(4-a-b), and/or hydrolysis products thereof. X is H, OH, or a hydrolysable moiety selected from the group including halogen, alkoxy, carboxy, amino, monoalkylamino or dialkylamino, aryloxy, acyloxy, or alkylcarbonyl. R.sup.1 is an organic moiety selected from the group including alkyl, aryl, or cycloalkyl, which may be interrupted by —O— or —NH—. R.sup.1 has at least one functional group Q.sup.1 selected from a group including a hydroxy-, amino, monoalkylamino, carboxy, mercapto, alkoxy, aldehyde, acrylic, acryloxy, methacrylic, methacryloxy, cyano, isocyano or epoxide group. R.sup.2 is a non-hydrolyzable organic moiety selected from the group including alkyl, aryl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl; a is 0, 1, 2, or 3, and b is 1, 2, 3, or 4.