Abstract: Disclosed is polymer dispersion obtainable by free radical polymerization reaction of hemicellulose with one or more ethylenically unsaturated monomers. Also disclosed are coated paper products wherein the coating is prepared using the polymer dispersion and use of the polymer dispersion as a size and coating of a paper, paperboard, and the like.

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl(meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas.

Abstract: The invention relates to a method for manufacturing a coating composition for a printing substrate. Method comprises mixing together colloidal silica particles, and an aqueous dispersion of a synthetic polymer and/or polyaluminium chloride, as well as a binder solution. The obtained mixture is used for forming a coating composition to be applied on the printing substrate comprising lignocellulosic fibres. The invention also relates to a coating composition comprising binder and a dispersed cationic component derived from synthetic polymer and colloidal silica particles.

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention relates also to dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl (meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas.

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl(meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas. The present disclosure relates also to an aqueous polymer dispersion having the D(99) value less than about 160 nm for polymer particles in the polymer dispersion and its use.

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention relates also to dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention also relates to a dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

Abstract: The invention relates to an inkjet recording sheet and use of a composition for improving inkjet printing properties of an inkjet recording sheet comprising wood or lignocellulosic fibre material. According to the invention the composition comprises calcium sulphate dihydrate and starch solution.

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention also relates alot to a dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent-, such as a straight-chain polyacrylate.

Abstract: The invention relates to a method of producing an electronic unit of a radio system automatically, an electronic unit of a radio system and an electronic component. The method of producing an electronic unit of a radio system automatically comprises mounting (802) the electronic component automatically in a hole provided for the electronic component in the circuit board using alignment means of the electronic component and alignment means of the circuit board, which align electric connecting means of the electronic component against electric connecting means on the circuit board; soldering (804) the electric connecting means of the electronic component automatically to the electric connecting means of the circuit board; and attaching (806) the electronic component automatically to the mechanical part so that the electronic component is in contact with the mechanical part, in which case the electronic component is cooled via the mechanical part.

Abstract: The invention relates to a method of producing an electronic unit of a radio system and an electronic unit of a radio system. The electronic unit comprises a mechanical part, a circuit board attached to the mechanical part and an electronic component connected to the circuit board. The method comprises mounting (1702) the electronic component in a cavity provided for the electronic component in the mechanical part; placing (1704) the circuit board on the electronic component and the mechanical part; connecting (1706) the electronic component and the circuit board together using electric coupling members for aligning them with respect to each other and for forming an electrical connection between electric connecting means of the circuit board and electric connecting means of the electronic component; and attaching (1708) the electronic component and the circuit board to each other and to the mechanical part automatically so that the electronic component will be in contact with the mechanical part.

Abstract: The invention relates to a connection method and a connection arrangement. The solution employs an adapter fastener, which is intended for both an adapter connection and a circuit board connection, the adapter fastener being electrically conductive. The adapter fastener comprises a hole, which extends through the adapter fastener and to which a coaxial cable is fixed. The sheath of the coaxial cable is electrically connected to the adapter fastener and a male connection is formed at the adapter fastener by means of an inner conductor of the coaxial cable. In the adapter connection, the inner conductor of the coaxial cable is connected electrically to a female contact of a standardized adapter and the adapter fastener is connected electrically to the frame of the standardized adapter by means of adapter protrusions.

Abstract: The invention relates to a connection method and a connection arrangement. The solution employs an adapter fastener, which is intended for both an adapter connection and a circuit board connection, the adapter fastener being electrically conductive. The adapter fastener comprises a hole, which extends through the adapter fastener and to which a coaxial cable is fixed. The sheath of the coaxial cable is electrically connected to the adapter fastener and a male connection is formed at the adapter fastener by means of an inner conductor of the coaxial cable. In the adapter connection, the inner conductor of the coaxial cable is connected electrically to a female contact of a standardized adapter and the adapter fastener is connected electrically to the frame of the standardized adapter by means of adapter protrusions.

Abstract: The invention relates to a method of producing an electronic unit of a radio system and an electronic unit of a radio system. The electronic unit comprises a mechanical part, a circuit board attached to the mechanical part and an electronic component connected to the circuit board. The method comprises mounting (1702) the electronic component in a cavity provided for the electronic component in the mechanical part; placing (1704) the circuit board on the electronic component and the mechanical part; connecting (1706) the electronic component and the circuit board together using electric coupling members for aligning them with respect to each other and for forming an electrical connection between electric connecting means of the circuit board and electric connecting means of the electronic component; and attaching (1708) the electronic component and the circuit board to each other and to the mechanical part automatically so that the electronic component will be in contact with the mechanical part.

Abstract: The invention relates to a method of producing an electronic unit of a radio system automatically, an electronic unit of a radio system and an electronic component. The method of producing an electronic unit of a radio system automatically comprises mounting (802) the electronic component automatically in a hole provided for the electronic component in the circuit board using alignment means of the electronic component and alignment means of the circuit board, which align electric connecting means of the electronic component against electric connecting means on the circuit board; soldering (804) the electric connecting means of the electronic component automatically to the electric connecting means of the circuit board; and attaching (806) the electronic component automatically to the mechanical part so that the electronic component is in contact with the mechanical part, in which case the electronic component is cooled via the mechanical part.

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention relates also to dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention also relates to a dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.