Double-faced liner board
AssigneeDallas Enviro-Tek International, Inc.
InventorsGaylord Allin, Mark Gorham
Life of this patent
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Abstract
A recyclable double-faced liner bard, the board having a top layer, a medium corrugated layer, and a bottom layer, the top layer having a coating formed from an aqueous composition comprising (A) an emulsion of a curable butadience-styrene copolymer and (B) TiO.sub.2, the medium layer having a coating formed from an aqueous composition containing an emulsion of wax particles and a binder (preferably sodium alginate); and the bottom layer having a coating formed from an aqueous composition comprising about 10 to 85 percent by weight of a liquid curable styrene-butadiene copolymer (or a carboxylated copolymer) and wax.
Claims5
A double-faced liner board comprising a top layer, a medium corrugated layer and a bottom layer, the top layer having a coating from a coating composition suitable for coating a liner board comprising an emulsion in water of (A) a curable prepolymer of a styrene-butadiene copolymer, and (B) TiO.sub.2 ;
- the medium layer having a coating applied from an aqueous treating coating composition suitable for coating a middle corrugated layer of a double-faced liner board, the composition comprising
- (A) an emulsion of wax particles, and
- (B) a binder that is
- (1) an alkali metal alginate, or
- (2) a solvent soluble styrene/acrylic copolymer, or
- (3) a mixture of the styrene/acrylic copolymer with a water-soluble melamine/formaldehyde prepolymer;
- the bottom layer having a coating applied from an aqueous coating composition comprising (A) a latex of a styrene-butadiene copolymer or a latex of a carboxylated styrene-butadiene copolymer and (B) wax.
A double-faced liner board comprising a top layer, a medium corrugated layer and a bottom layer, the top layer having a coating from a composition, a coating composition suitable for coating a liner board comprising an emulsion in water of (A) a prepolymer of a styrene-butadiene copolymer, and (B) TiO.sub.2 ;
- the medium layer having a coating applied from a composition, an aqueous treating coating composition suitable for coating a middle corrugated layer of a double-faced liner board, the composition comprising
- (A) an emulsion of wax particles, and
- (B) a binder that is
- (1) an alkali metal alginate, or
- (2) a solvent soluble styrene/acrylic copolymer, or
- (3) a mixture of the styrene/acrylic copolymer with a water-soluble melamine/formaldehyde prepolymer;
- the bottom layer having a coating applied from an aqueous coating composition comprising (A) a latex of a styrene-butadiene copolymer or a latex of a carboxylated styrene-butadiene copolymer and (B) wax.
Dependencies are inferred from the claim text.