D21H17/60

COMPOSITION FOR PROVIDING GREASE AND WATER RESISTANT PROPERTIES WITHOUT USE OF A FLUORINATED COMPOUND, METHOD OF MAKING THE COMPOSITION, AND PULP MOLDED ARTICLE MADE BY THE METHOD THEREOF
20200318288 · 2020-10-08 ·

A food-safe composition and resulting article with grease and water resistance properties comprised of a petroleum wax based aqueous emulsion, a food-safe coating formulation, and an alkyl ketene dimer (AKD), wherein the composition exhibits grease and water resistant properties without a fluorinated compound present in the composition. A method of making the composition and a method of using the composition to form pulp molded articles such as food-safe containers and other pulp-based food packaging and utensils are provided.

Latex formulation with a multivalent metal ion

The present invention relates to composition and an article prepared by applying the composition to paper. The composition comprises an aqueous dispersion of acrylic or styrene acrylic polymer particles having a hard phase and a soft phase, wherein both phases comprise structural units of an specific acid monomer. The composition further includes sub-stoichiometric levels of a Zn.sup.++ or Zr.sup.++++ with respect to the carboxylic acid groups. The composition is useful as imparting block and tack resistance as a coating on paper.

Latex formulation with a multivalent metal ion

The present invention relates to composition and an article prepared by applying the composition to paper. The composition comprises an aqueous dispersion of acrylic or styrene acrylic polymer particles having a hard phase and a soft phase, wherein both phases comprise structural units of an specific acid monomer. The composition further includes sub-stoichiometric levels of a Zn.sup.++ or Zr.sup.++++ with respect to the carboxylic acid groups. The composition is useful as imparting block and tack resistance as a coating on paper.

METHOD FOR THE PRODUCTION OF PAPER, CARTON, OR CARDBOARD USING BAOBAB TREE BARK BAST FIBERS, BAOBAB FRUIT FIBERS, AND/OR NATAL FIG BAST FIBERS AS PAPER RAW MATERIAL
20200181845 · 2020-06-11 ·

The invention relates to a method for the production of paper, carton, or cardboard using baobab tree bast fibers, baobab fruit fibers, and/or Natal fig fibers as paper raw material, comprising the steps of: obtaining baobab fruit fiber and/or baobab tree bast fiber as baobab raw material and/or Natal fig bast fiber as Natal fig raw material; fraying the baobab raw material and/or Natal fig raw material while adding water; heating and preferably bleaching the obtained fiber pulp; applying the fiber pulp to a sieving means comprising removing a portion of the added water in order to produce a paper fiber fleece; pressing the obtained paper fiber fleece; and drying the obtained paper fiber fleece. The invention further relates to paper, cardboard, or carton obtainable by a method of the invention, and their use for the production of natural paper, papier mch, art paper, hygienic paper, tissue paper, graphic papers, paper, carton, or cardboard for packaging purposes, or paper for specialized technical purposes.

METHOD FOR THE PRODUCTION OF PAPER, CARTON, OR CARDBOARD USING BAOBAB TREE BARK BAST FIBERS, BAOBAB FRUIT FIBERS, AND/OR NATAL FIG BAST FIBERS AS PAPER RAW MATERIAL
20200181845 · 2020-06-11 ·

The invention relates to a method for the production of paper, carton, or cardboard using baobab tree bast fibers, baobab fruit fibers, and/or Natal fig fibers as paper raw material, comprising the steps of: obtaining baobab fruit fiber and/or baobab tree bast fiber as baobab raw material and/or Natal fig bast fiber as Natal fig raw material; fraying the baobab raw material and/or Natal fig raw material while adding water; heating and preferably bleaching the obtained fiber pulp; applying the fiber pulp to a sieving means comprising removing a portion of the added water in order to produce a paper fiber fleece; pressing the obtained paper fiber fleece; and drying the obtained paper fiber fleece. The invention further relates to paper, cardboard, or carton obtainable by a method of the invention, and their use for the production of natural paper, papier mch, art paper, hygienic paper, tissue paper, graphic papers, paper, carton, or cardboard for packaging purposes, or paper for specialized technical purposes.

Surface treatment composition
10619304 · 2020-04-14 · ·

The invention relates to a surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt or a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

Surface treatment composition
10619304 · 2020-04-14 · ·

The invention relates to a surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt or a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

SURFACE TREATMENT COMPOSITION
20200071883 · 2020-03-05 · ·

A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

SURFACE TREATMENT COMPOSITION
20200071883 · 2020-03-05 · ·

A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

Waterproof Paper Utensils and Method for Making Waterproof Paper Utensils
20240084512 · 2024-03-14 · ·

Waterproofed paper and paperboard forms utensils, tools, and cutlery. The waterproofed paper is made by applying a waterproof composition to the paper and then cutting and molding the waterproofed paper to the shape of a utensil, tool, or piece of cutlery. Paper and paperboard that is particularly useful in forming strong utensils, tools, and cutlery that do not bend or snap during normal use.