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Class 162/181.6 - Silicon containing additive other than clay


Subclass of Class 162 - Paper making and fiber liberation
Definition: Subject matter comprising a silicon containing substance
No. of patents: 298
Last issue date: 02/21/2012


1                
NumberTitleIssue Date
8118976Process for the production of a cellulosic product
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 cellul...
02/21/2012
8097127Siliceous composition and its use in papermaking
An aqueous polysilicate composition comprising a polysilicate microgel based component in association with particles derived from colloidal polysilicate. The invention also concerns a process for preparing an aqueous polysilicate composition comprising mixing an aqu...
01/17/2012
7976679Fibrous structures comprising a low surface energy additive
Fibrous structures comprising an additive, more particularly finished fibrous structures comprising a low surface energy solid additive, and/or sanitary tissue products comprising such finished fibrous structures, are provided. ...
07/12/2011
7691234Aqueous composition
The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerizing one or more ethylenically unsaturated monomers...
04/06/2010
7670460Production of paper using slica-based-sols
A process for the production of paper which includes the steps of providing an aqueous suspension containing cellulosic fibers, and optional fillers; adding to the suspension: (a) at least one charged organic polymer; and (b) an aqueous sol containing silica-based p...
03/02/2010
7597781Inorganic fiber paper
This invention provides an inorganic fiber paper that consists essentially of inorganic materials and has a basis weight of less than 100 g/m2 and has been mainly produced by a wet sheet making method. The inorganic fiber paper comprises inorganic fibers ...
10/06/2009
7504001Method for producing paper and agent for improving yield
The objective of the present invention is to provide a papermaking method that can enhance the retention in the papermaking steps. This invention provides a method including making paper by adding to pulp slurry a silica sol which is prepared through a reaction betw...
03/17/2009
7470346Aqueous compositions and their use in the manufacture of paper and paperboard
A process of preparing an aqueous composition comprising a polysilicate, wherein the composition is a substantially uniform liquid when measured at 25° C., comprising the steps of, i) providing an aqueous liquid having a source of silicate, ii) adjusting the pH of ...
12/30/2008
7459059Use of synthetic metal silicates for increasing retention and drainage during a papermaking process
The invention discloses a paper or paperboard produced from a slurry comprising cellulose fibers and an effective amount of SMS. In addition, a method for increasing retention and dewatering during the papermaking process is also disclosed. The method involves the a...
12/02/2008
7449086Use of synthetic metal silicates for decreasing the deposition of contaminants during a papermaking process
A method for decreasing the amount of contaminants in a papermaking a process is disclosed. The method involves adding an effective amount of SMS to said papermaking process. ...
11/11/2008
7442280Process for the production of paper
A process for the production of paper from a suspension containing cellulosic fibers, and optional fillers, which comprises adding to the suspension a drainage and retention aid comprising a cationic organic polymer, forming and dewatering the suspension on a wire, ...
10/28/2008
7399379Process of attaching reinforcing ply to ply containing mica-rich and mica-poor faces
The present invention relates to a sheet structure for electrical insulation or flame resistance comprising a barrier ply having a mica-rich face and a mica-poor face and a reinforcing ply containing a saturable backing layer attached to the mica-poor face of the ba...
07/15/2008
7364641Manufacture of paper and paper board
Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a s...
04/29/2008
7311752Electrostatic air filter
The invention is a filter for gaseous media in which nano alumina fibers and second fibers are arranged in a matrix to create asymmetrical pores. The filter is a high efficiency, high capacity particulate filter that intercepts pathogens and other particulate matter...
12/25/2007
7306701Production of paper, board and cardboard
Paper, board and cardboard are produced by shearing the paper stock, adding a microparticle system comprising a cationic polymer and a finely divided inorganic component to the paper stock after the last shearing stage before the head box, draining the paper stock w...
12/11/2007
7303654Cellulosic product and process for its production
The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. T...
12/04/2007
7285182Composition for surface treatment of paper
A composition for surface treatment of paper which includes a nanoparticle fraction, and a carrier fraction for detaining the nanoparticles in the surface layer. The carrier fraction includes plate-like pigment particles, and at least one binder. The invention also ...
10/23/2007
7244339Retention and drainage system for the manufacturing of paper
A process for manufacturing a paper stock for use in making paper, paperboard and similar cellulosic products, by adding, at one or more different points of the wet end of the paper-making machine, a secondary retention and drainage agent containing a liquid smectit...
07/17/2007
7201826High performance natural zeolite microparticle retention aid for papermaking
A microparticle retention aid for use in papermaking containing a high performance purified natural zeolite pigment is disclosed. Use of the pigment facilitates manufacture of papers with improved quality and economics. When used as filler, the novel zeolite pigment...
04/10/2007
7189776Aqueous composition
The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerising one or more ethylenically unsaturated monomers...
03/13/2007
7175741Reducing odor in absorbent products
Hydrogen sulfide is removed or reduced in absorbent products by the use of a particulate material attached to pulp fiber by a retention aid. The particulate material can remove or reduce the hydrogen sulfide in the environment surrounding the fiber. Suitable materia...
02/13/2007
7169261Silica-based sols
An aqueous sol containing silica-based particles which has an S-value within the range of from 10 to 45%, a viscosity within the range of from 5 to 40 cP, and a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range o...
01/30/2007
7169258Process and a fluffer device for treatment of a fiber stock suspension
A device treats a fiber stock suspension with at least one additive, the fiber stock suspension being used for production of at least one of paper and cardboard. The fiber stock suspension includes a suspension medium and a fiber material. The fiber material has fib...
01/30/2007
7156955Papermaking process using a specified NSF to silica-based particle ratio
The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition compr...
01/02/2007
7141181Composition comprising amphoteric polymeric flocculants
A composition is provided which comprises amphoteric polymers comprising, as constituent monomer units, a cationic monomer unit, an anionic monomer unit, and optionally a nonionic monomer unit and having a 0.5% salted viscosity of 10 to 120 mPa·s, wherein said amph...
11/28/2006
7135429Attrition resistant carrier product
The present invention is directed to an attrition resistant carrier product such as silica. Further, this invention is directed to the use of a binder to improve the attrition resistance or reduce the friability of a carrier product such as silica. In an embodiment,...
11/14/2006
7125471Papermaking process using enzyme-treated sludge, and products
Enzyme-treated papermaking sludges are provided, as are methods of making the enzyme-treated sludge. Papermaking processes that incorporate the enzyme-treated papermaking sludges into papermaking pulp are also provided as are paper and paperboard products made from ...
10/24/2006
7087360Package structure of planographic printing plates and interleaf paper for packaging the same
An object of the present invention is to provide an interleaf paper for packaging planographic printing plates and preventing breakage of the plate-making layer at the time packaging, and a planographic printing plate package structure using a plurality of the above...
08/08/2006
7070749Doped precipitated silica
Foreign-atom-doped precipitated silicas having a BET surface area of more than 300 m2/g and a maximum surface concentration of the foreign atoms of 0.05 mmol/m2, to a process for preparing them and to the use of the resulting precipitated silic...
07/04/2006
7070677Method and apparatus for treating pulp with filler
The present invention relates to a method of and apparatus for treating pulp with filler. The method and apparatus according to the invention are especially well suitable for treating pulp with filler, the mixing of which to the pulp requires simultaneous treatment ...
07/04/2006
7060127Silica-calcium carbonate composite particles
Silica-calcium carbonate composition particles having the characteristics of both synthetic silica and calcium carbonate are described along with paper having the particles internally filled therein and a method for making the particles. In the carbonation re...
06/13/2006
7048900Method and apparatus for production of precipitated calcium carbonate and silicate compounds in common process equipment
A method and apparatus for the production of calcium carbonate and calcium silicate in common superatmospheric reactors. Multiple reactors can be provided for switching production between reactors, and advantageously utilizing process waste heat. On site production ...
05/23/2006
6977027Additive and process for sticky control in recycled pulps
The present invention describes an additive which controls stickies formation and removes anionic trash from recycled old corrugated container furnish, old newsprint furnish, deinked pulp furnish, old magazine grade furnish, coated broke furnish, or thermomechanical...
12/20/2005
6939443Anionic functional promoter and charge control agent
The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention ...
09/06/2005
6893538Process for the production of paper using silica-based sols
The invention relates to an aqueous silica-based sol comprising a nitrogen-containing organic compound and silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention further relates to a process for the produc...
05/17/2005
6890405Method of controlling tackiness in papermaking
To reduce the problem of tackiness caused by contaminants in recycled paper, effective amounts of talc and a terpene such as D-limonene are added to paper stock in conjunction with chemical fixing agents and retention aids. The terpene increases the affinity of the ...
05/10/2005
6890652Decorative paper base with improved opacity
A decorative base paper for decorative coating materials having a pigment component of 10 to about 65% by wt., comprises a modified titanium dioxide containing silicon and aluminum, in mixture with a further white pigment. ...
05/10/2005
6887351Process for regulating the porosity and printing properties of paper by use of colloidal precipitated calcium carbonate, and paper containing such colloidal precipitated calcium carbonate
The invention relates to a process for regulating the porosity and printing properties of paper, in particular uncoated wood-containing paper such as SC-paper, wherein a sufficient quantity of colloidal PCC having a BET surface area of 10-100 m2/g is used...
05/03/2005
6869471Process for sizing paper and sizing composition
The present invention relates to a process for sizing paper comprising providing an aqueous suspension comprising cellulosic fibres, dewatering said aqueous suspension thereby forming a paper web, said process comprising adding to the cellulosic suspension an aqueou...
03/22/2005
6855404Inorganic sheet laminate
A laminate of inorganic sheet and polyester resin having an overall thickness of 5 to 25 mils and having an elongation at break in both the cross direction and machine direction of at least 25%. ...
02/15/2005
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