Patent classifications
D21H17/74
FLAME-RESISTANT PAPER FOR RADIO WAVE ABSORBER MEMBER AND PRODUCTION METHOD FOR SAME
An object of the present invention is to provide, in particular, flame-resistant paper for a radio wave absorber member, the flame-resistant paper being unlikely to break during the production process and having favorable producibility in addition to being suitable for a radio wave absorber member and having high flame resistance. The flame-resistant paper for a radio wave absorber member according to the present invention contains pulp, aluminum hydroxide, guanidine phosphate, a binder, and a conductive substance, in which the content of the pulp is 5 to 20 mass%, the content of the aluminum hydroxide is 40 to 70 mass%, the content of the guanidine phosphate is 10 to 20 mass%, the content of the binder is 5 to 10 mass%, and the content of the conductive substance is 0.1 to 12 mass%.
Sulfonated lignin-derived compounds and uses thereof
The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.
METHOD FOR MANUFACTURING PAPER AND CARDBOARD
This invention relates to a method for manufacturing a sheet of paper or cardboard, comprising the addition of a water-soluble polymer P with a weight-average molecular weight greater than 750,000 Dalton to a fibrous suspension. This method comprises the following successive steps: preparing an aqueous solution A containing at least one water-soluble polymer P at a concentration C of between 0.1 and 0.5% by weight, said polymer P having a factor F(C) strictly greater than 4, with F.sub.(C)=Δ600/C, Δ600 being the slope to reach 90% of the viscosity developed by aqueous solution A at 600 seconds at 25° C., obtained from the viscosity curve of aqueous solution A as a function of time, at the given concentration C, at 25° C., adding aqueous solution A to the fibrous suspension, at one or more injection points, forming a sheet of paper or cardboard.
PAPER COATED WITH A FUNCTIONAL POLYOLEFIN FILM
The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film is derived from a dispersion which comprises: a) a dispersant which is a copolymer with an acid value of 130 or less, comprising structural units of ethylene and a carboxylic acid monomer, wherein the copolymer has a melt flow index in the range of from 50 to 2000 g/10 min at 190° C./2.16 kg; wherein the weight-to-weight ratio of structural units of ethylene to carboxylic acid monomer is in the range of from 95:5 to 70:30; and wherein the dispersant has a concentration in the range of from 9 to 50 weight percent based on the weight of polymer solids in the dispersion; b) a base polymer comprising non-functionalized ethylene-co-alkene copolymers, wherein the weight-to-weight ratio of the structural units of ethylene to alkene is in the range of from 99.8:0.2 to 50:50; and c) a neutralizing agent which is a hard base and excludes an organic base having a boiling point of less than 250° C.; wherein the concentration of the neutralizing agent is sufficient to neutralize at least half of the carboxylic acid groups associated with the dispersion composition.
The article of the present invention is useful as a barrier to a wide range of hydrophobic and hydrophilic materials.
Oxidized microfibrillated cellulose fibers and composition thereof
Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
SIPLID FOR A CONTAINER HAVING A TWISTING EFFECT, AND METHOD FOR MANUFACTURING SUCH SIPLID
The invention relates to a siplid 2, a container provided with such siplid and a method therefor. The siplid comprises: • - a container side 4, a consumer side 6, and a siplid plane 12 having a siplid axis 14; • - an edge 8 configured for surrounding a container opening to cover the container opening; • - a drinking opening 18 in the siplid having a length L substantially extending in the circumferential direction of the siplid, and having a width W substantially extending in the radial direction of the siplid; • - a moveable tab 20 configured for covering the opening in a closed position; • - a recess 22 configured for receiving the moveable tab in an open position; • - a hinge 32 configured for enabling rotational movement of the tab around a hinge axis; and • - a section line 16 extending in the siplid plane dividing the opening in two equal parts, and a division line 34 in between the opening and the recess extending substantially perpendicular to the section line wherein the hinge axis is provided at a lid angle to the division line.
Use of a polymer product for deposit formation control in manufacture of paper or board
The invention relates to a use of a water-soluble polymer product comprising amphoteric polyacrylamide, which has neutral or cationic net charge at pH 7, a weight-average molecular weight of 2,500,000-18,000,000 g/mol and a total ionicity of 4-28 mol-%. The polymer product is used for controlling deposit formation caused by hydrophobic substances in manufacture of paper or board, where a fibre web is formed from an aqueous suspension of fibres. The invention relates also to a method for controlling deposit formation caused by hydrophobic substances in manufacture of paper or board, where a fibre web is formed from an aqueous suspension of fibres, as well as to produced paper or board.
FORMULATION FOR A FIBROUS NON-WOVEN FACING MATERIAL
The present invention provides a formulation for a fibrous non-woven facing material, wherein the formulation comprises a binder, a filler, and an extender. The extender has an median particle size, d.sub.50, which is equal to or less than 3.5 μm, and a non-spherical morphology. The filler has an median particle size, d.sub.50, which is equal to or less than 3.0 μm and wherein the filler has a d.sub.10 equal to or less than 1.0 μm and a d.sub.90 equal to or less than 6.0 μm. The formulation comprises less than 13 wt % titanium dioxide on a dry solids basis. Also provided is a fibrous non-woven facing material comprising the formulation, a process for preparing the fibrous non-woven facing material and a fibrous non-woven facing material obtained by said process.
Titanium oxide composite fibers and method for producing same
The present invention provides a titanium oxide composite fiber in which titanium oxide is efficiently fixed in fiber, and a method for producing the titanium oxide composite fiber. A composite fiber of the present invention includes: fiber; titanium oxide; and an inorganic binder, at least part of the inorganic binder containing at least one inorganic compound selected from (i) an inorganic salt containing at least one of: at least one metal selected from magnesium, barium, aluminum, copper, iron, and zinc; and silicic acid and (ii) metal particles containing the at least one metal, the titanium oxide being firmly fixed to the fiber via the inorganic binder.
METHOD FOR PRODUCING WET-RUNNING FRICTION PAPER, AND WET-RUNNING FRICTION PAPER
A method for producing a wet-running friction paper includes providing a fiber portion with a fiber, providing a filler portion with a filler, providing a binder portion with a phenol-resin-based binder, dissolving the binder portion to form a phenolate, and processing the fiber portion, the filler portion and the phenolate in a paper production process to form the wet-running friction paper.