Patents
Patents for D21H 21 - Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties (20,755)
12/1993
12/09/1993WO1993024334A1 Printed matter and printing method
12/01/1993EP0572304A1 Carbon dioxide in neutral and alkaline sizing processes
12/01/1993EP0571832A2 Imides and their salts and their use as surface active agents
11/1993
11/30/1993US5266218 Aqueous systems
11/30/1993US5266166 Methods for controlling the deposition of organic contaminants in pulp and papermaking processes using a polyalkylene oxide/vinyl acetate graft copolymer
11/30/1993US5266164 Papermaking process with improved drainage and retention
11/30/1993US5266078 Enhancement of fluorescent whitening agents: water-soluble phosphonates and carboxylates for coating paper
11/30/1993US5265916 Secure event tickets
11/30/1993CA1324707C Retention and drainage aid for papermaking
11/30/1993CA1324706C Creping device adhesive formulation
11/30/1993CA1324705C Process for the production of paper
11/30/1993CA1324703C Retention and drainage aid for papermaking
11/27/1993CA2096816A1 Imides and their salts, as well as their use
11/25/1993DE4315031A1 New sulphonated dis:azo dyes
11/24/1993EP0571144A1 Control of deposition of organic contaminants
11/24/1993CN1078758A Paper tissue preventing virus
11/23/1993US5264081 Forgery-proof safety paper
11/23/1993US5263500 Calcium carbonate mineral filler
11/18/1993EP0569699A1 Fluid Poly(vinyl alcohol) suspensions
11/16/1993US5262008 Production of paper, board and cardboard in the presence of copolymers containing N-vinylformamide units
11/16/1993US5262007 Soft absorbent tissue paper containing a biodegradable quaternized amine-ester softening compound and a temporary wet strength resin
11/16/1993US5261954 Valuable decument paper carry both starch and iodate salt and color generating system cotains an acidic solution of iodide salt useful for varification
11/11/1993WO1993022501A1 Bleaching of a paper web with peroxide
11/11/1993CA2134072A1 Bleaching of a paper web with peroxide
11/10/1993EP0569085A1 Pitch or stickies control agent
11/10/1993EP0568599A1 Method for avoiding pitch troubles by use of thermostable lipase.
11/10/1993EP0366764B1 Processes for the production of paper and paper board
11/09/1993US5260396 Diapers
11/09/1993CA1324037C Press felt conditioner for neutral and alkaline papermaking systems
11/03/1993EP0568229A1 Control of deposition of organic contaminants in pulp and papermaking systems
11/03/1993EP0567846A1 Cationic triazatrimethine dyes
10/1993
10/29/1993CA2091273A1 Detackification of adhesive materials contained in secondary fiber using vinylpyrrolidone based polymers
10/29/1993CA2091272A1 Methods for controlling the deposition of organic contaminants in pulp and papermaking processes
10/28/1993WO1993021383A1 Soft absorbent tissue paper containing a biodegradable quaternized amine-ester softening compound and a temporary wet strength resin
10/27/1993EP0523230A4 Reinforced films made from water soluble polymers
10/26/1993US5256254 Spraying a water solution of antideposit agent a phosphates of a monoester, a diester or a triester
10/26/1993US5256253 Methods for inhibiting barium sulfate deposition using a poly(amine)compound or its salts in papermaking systems
10/26/1993US5256252 Method for controlling pitch deposits using lipase and cationic polymer
10/24/1993CA2093092A1 Aqueous emulsion and easily macerating moisture-proof paper
10/20/1993CN2144137Y Sheet glass packaging wadding paper with mildew and rub prevention features
10/20/1993CN1077508A Prepn. method for medicinal hygeian tissue
10/20/1993CN1022501C Paper tissue for beauty and skin protecting
10/20/1993CN1022491C Fire resistant materials
10/19/1993US5254675 Anionic disazo dyes
10/19/1993US5254221 Processes for the production of paper and paper board
10/19/1993US5254220 Process for positioning rigid segments into a continuous paper web
10/14/1993WO1993020280A1 Antistatic sheet
10/14/1993WO1993020019A1 Synergistic filler blends for wood-containing papers
10/14/1993WO1993020010A1 Clustered precipitated calcium carbonate particles
10/14/1993CA2133472A1 Clustered precipitated calcium carbonate particles
10/13/1993EP0564994A1 Stable blend of ketene dimer size and colloidal silica
10/13/1993EP0564912A1 Paper wet-strengthening process
10/13/1993CN1077238A Method for making women's sanitary paper
10/12/1993US5252332 Aqueous solution containing borate and bicarbonate
10/07/1993CA2093289A1 Process for imparting wet strength to paper
10/05/1993US5250586 Method for the production of finely divided water soluble polymers
10/05/1993US5250353 Enhanced paper and paperboard biodegradability
10/05/1993CA1322806C Aqueous dispersion of cationic polymer
10/03/1993CA2093198A1 Poly (vinyl alcohol) fluidized polymer suspensions
09/1993
09/30/1993WO1993019247A1 Polysilicate microgels as retention/drainage aids in papermaking
09/30/1993WO1993019098A1 Precipitation polymerization of copolymers of a vinyl lactam and a polymerizable carboxylic acid and solubilization thereof
09/29/1993EP0562739A1 Control of slime formation in industrial process waters
09/29/1993EP0562322A1 Process for producing a decay-resistant paper for the manufacture of a pot for raising and transplanting seedlings
09/29/1993EP0561828A1 Paper and a method of paper manufacture.
09/29/1993CN1076746A Manufacture method of disinfected fragrant tissue
09/28/1993US5248724 Strength, nontacky, polyvinyl alcohol, ethylene oxide-propylene oxide copolymer
09/28/1993US5248556 Systhetic whitener pigment
09/28/1993CA1322435C Production of paper and paper board
09/25/1993CA2092234A1 Glutaraldehyde plus 2-(thiocyanomethlthio)-benzothiazole as a biocide for industrial waters plus pulp and paper systems
09/22/1993CN1076499A Xuan paper for water painting from life
09/22/1993CN1076429A New polyaluminumchlorosulfates and preparation and uses thereof
09/21/1993US5246548 Pitch control
09/21/1993US5246547 Hydrophobic polyelectrolyte coagulants for the control of pitch in pulp and paper systems
09/21/1993US5246546 Hot rolling, evaporation, calendering and transferring
09/21/1993US5246545 Process for applying chemical papermaking additives from a thin film to tissue paper
09/21/1993US5246544 Crosslinkable creping adhesives
09/15/1993EP0560257A1 Enhancement of tissue paper softness with minimal effect on strength
09/08/1993EP0559310A1 Ink compositions
09/08/1993EP0500770B1 A process for the production of paper
09/07/1993US5242749 Fibers and unconsolidated particles of non-crosslinked elastomer bonded togather
09/07/1993CA2087489A1 Chemical compositions
09/01/1993EP0558360A1 Process for bacterial treatment of circuits in paper industry contaminated with flora
09/01/1993CN2141429Y Spray-painting machine
08/1993
08/31/1993US5241054 Yellow, orange, red dye, especially for paper, cellulose
08/31/1993US5240562 Paper products containing a chemical softening composition
08/31/1993US5239902 Method and apparatus for processing sheets of material in register, in particular for making security threads
08/25/1993EP0557157A1 Sheet provided with watermark-like markings
08/25/1993EP0557153A1 Aluminiumpolychlorosulphates, process for their preparation and their uses
08/24/1993US5239047 Aminopolyamide-epichlorohydrin cationic resin, tensile strength
08/24/1993US5238572 Enzyme treatment for industrial slime control
08/19/1993WO1993016229A1 A process for making a paper based product containing a binder
08/19/1993CA2129734A1 A process for making a paper based product containing a binder
08/18/1993EP0555210A1 Microbiocidal combinations of materials and their use
08/18/1993CN1075262A Styptical medical paper
08/11/1993EP0554667A1 Blends of fluor containing copolymers
08/10/1993US5234547 Creping aid
08/10/1993US5234466 Forms less corrosive solution than sulfamic acid
08/10/1993CA1321046C Method for dewatering paper
08/05/1993WO1993015272A1 Image carrier for a reprographic image
08/05/1993DE4202703A1 Increasing vol. and porosity of paper - with alkoxylated unsatd. fatty acid ester(s)