Abstract: The invention relates to a cellulosic product containing thermoplastic microspheres and a charged aromatic acrylamide-based polymer. The invention further relates to a process for a process for producing a cellulosic product which comprises providing an aqueous suspension containing cellulosic fibers; adding to the suspension thermoplastic microspheres and a charged aromatic acrylamide-based polymer; and dewatering the obtained suspension. The invention also relates to the use of the cellulosic product as a liquid packaging board.

Abstract: The present invention relates to a process for producing paper which comprises: (vii) providing an aqueous suspension comprising cellulosic fibres, (viii) adding to the suspension after all points of high shear: a first polymer being a cationic polymer having a charge density above 2.5 meq/g; a second polymer; and a third polymer being an organic or inorganic anionic polymer; and (ix) dewatering the obtained suspension to form paper.

Abstract: The present invention relates to a process of producing a cellulosic product comprising (i) providing an aqueous suspension of cellulosic fibers, (ii) adding microfibrillar polysaccharide, (iii) adding thermoplastic microspheres, (iv) dewatering the suspension and forming a cellulosic product. The invention also relates to a process of producing a single layer cellulosic product comprising (i) providing an aqueous suspension of cellulosic fibers, (ii) adding microfibrillar polysaccharide derived from softwood and/or hardwood and optionally adding thermoplastic microspheres to the suspension, (iii) dewatering the suspension and forming a cellulosic product. The invention further relates to a cellulosic product obtainable from said processes. The invention also relates to a composition comprising microfibrillar polysaccharide and thermoplastic microspheres and the use thereof.

Abstract: The present invention concerns a process for the production of a cellulosic product comprising providing a fiber-containing suspension, wherein at least about 60% by weight of the fibers are cellulosic fibers, and dewatering the suspension on a wire to form a cellulosic fiber web, the process further comprising adding silica-based particles to the formed web and a wet strength agent to the suspension and/or to the formed web. The invention also concerns a product obtainable by the process. The invention further concerns a dispersion comprising silica-based particles and a substantially aldehyde-free wet strength agent. A further aspect of the invention concerns a dispersion comprising silica-based particles having a specific surface area ranging from about 1000 to about 1700 m2/g and a wet strength agent. Still another aspect of the invention concerns the use of the dispersion as an additive in a papermaking process.

Abstract: The invention relates to a packaging laminate comprising at least one base layer of paper or paper board and at least one liquid barrier layer, said paper or paper board being sized with a formulation comprising a sizing agent selected from the group consisting of ketene dimers and multimers, succinic anhydrides, rosins and mixtures thereof, and also comprising an acrylamide based polymer The invention further relates to the production and use of a packaging laminate and a package for food or beverage products and its production.

Abstract: The invention relates to a cellulosic product containing thermoplastic microspheres and a charged aromatic acrylamide-based polymer. The invention further relates to a process for a process for producing a cellulosic product which comprises providing an aqueous suspension containing cellulosic fibres; adding to the suspension thermoplastic microspheres and a charged aromatic acrylamide-based polymer; and dewatering the obtained suspension. The invention also relates to the use of the cellulosic product as a liquid packaging board.

Abstract: The invention relates to a packaging laminate comprising at least one base layer of paper or paper board and at least one liquid barrier layer, said paper or paper board comprising expanded or unexpanded expandable thermoplastic microspheres. The invention further relates to the production and use of a packaging laminate and a package for food or beverage products and its production.

Abstract: The invention related to process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises adding to the suspension (i) a cationic vinyl addition polymer prepared by polymerizing one or more ethylenically unsaturated monomers comprising a cationic monomer; (ii) an anionic polymer having one or more aromatic groups selected from the group consisting of polymers obtained by condensation of formaldehyde with benzene-based and naphthalene-based compounds, polyurethanes, polysaccharides, and lignin-based polymers; wherein (i) and (ii) are separately added to the suspension; and (iii) a low molecular weight cationic organic polymer having a molecular weight in the range of from 2,000 to about 700,000; or an anionic microparticulate material; and forming and draining the obtained suspension on a wire.

Abstract: The present invention relates to a process for producing paper which comprises: providing an aqueous suspension comprising cellulosic fibres, adding to the suspension, after all points of high shear, a cationic polysaccharide; and a polymer P2 being an anionic polymer; and, dewatering the obtained suspension to form paper.

Abstract: The present invention relates to a drainage and retention aid composition which comprises: (g) a first anionic component which is a water-soluble anionic organic polymer; (h) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (i) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.

Abstract: The present invention relates to a process for producing paper which comprises: (vii) providing an aqueous suspension comprising cellulosic fibres, (viii) adding to the suspension after all points of high shear: a first polymer being a cationic polymer having a charge density above 2.5 meq/g; a second polymer; and a third polymer being an organic or inorganic anionic polymer; and (ix) dewatering the obtained suspension to form paper.

Abstract: The invention related to process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises adding to the suspension (i) a cationic vinyl addition polymer prepared by polymerizing one or more ethylenically unsaturated monomers comprising a cationic monomer; (ii) an anionic polymer having one or more aromatic groups selected from the group consisting of polymers obtained by condensation of formaldehyde with benzene-based and naphthalene-based compounds, polyurethanes, polysaccharides, and lignin-based polymers; wherein (i) and (ii) are separately added to the suspension; and (iii) a low molecular weight cationic organic polymer having a molecular weight in the range of from 2,000 to about 700,000; or an anionic microparticulate material; and forming and draining the obtained suspension on a wire.

Abstract: The invention relates to a process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises separately adding to the suspension a cationic organic polymer having one or more aromatic groups and an anionic polymer having one or more aromatic groups, the anionic polymer being selected from step-growth polymers, polysaccharides and naturally occurring aromatic polymers and modifications thereof, forming and draining the suspension on a wire, with the proviso that if the anionic polymer is a step-growth polymer it is not an anionic melamine-sulphonic acid condensation polymer.

Abstract: The invention relates to a cationised polysaccharide product comprising a polysaccharide having at least one first substituent having an aromatic group and at least one second substituent having no aromatic group. The invention further relates to a cationised polysaccharide product comprising one or more polysaccharides having at least one first substituent having an aromatic group and one or more polysaccharides having at least one second substituent having no aromatic group. The present invention also relates to a method for the preparation of a cationised polysaccharide product comprising reacting one or more polysaccharides with at least one aromatic agent and at least one non-aromatic agent. The invention further relates to a method for the preparation of a cationised polysaccharide product comprising reacting a first polysaccharide with at least one aromatic agent, reacting a second polysaccharide with at least one second non-aromatic agent, and then mixing the polysaccharides obtained.

Abstract: The invention relates to a cationised polysaccharide product comprising a polysaccharide having at least one first substituent having an aromatic group and at least one second substituent having no aromatic group. The invention further relates to a cationised polysaccharide product comprising one or more polysaccharides having at least one first substituent having an aromatic group and one or more polysaccharides having at least one second substituent having no aromatic group. The present invention also relates to a method for the preparation of a cationised polysaccharide product comprising reacting one or more polysaccharides with at least one aromatic agent and at least one non-aromatic agent. The invention further relates to a method for the preparation of a cationised polysaccharide product comprising reacting a first polysaccharide with at least one aromatic agent, reacting a second polysaccharide with at least one second non-aromatic agent, and then mixing the polysaccharides obtained.

Abstract: The present invention relates to an aqueous dispersion of a sizing agent comprising starch having aromatic groups and an anionic polyelectrolyte, wherein the starch has a total amount of amylose of at least about 22% by weight based on total starch.

Abstract: The invention relates to a process for manufacturing paper and board comprising providing a suspension comprising cellulosic fibres and at least a sizing agent, dewatering said suspension thereby forming a paper-web, whereby an aromatic-containing cationic vinyl addition polymer, and an anionic polymer having a weight average molecular weight of up to about 500,000 selected from the group consisting of vinyl addition polymers and condensation polymers is added separately to the suspension.

Abstract: The invention relates to a process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises separately adding to the suspension a cationic organic polymer having one or more aromatic groups and an anionic polymer having one or more aromatic groups, the anionic polymer being selected from step-growth polymers, polysaccharides and naturally occurring aromatic polymers and modifications thereof, forming and draining the suspension on a wire, with the proviso that if the anionic polymer is a step-growth polymer it is not an anionic melamine-sulphonic acid condensation polymer.