| Patent Number |
Title Of Patent |
Date Issued |
| 7109509 |
Device for the detection of substrates stacked with a specific spacing |
September 19, 2006 |
| For a device for the detection of substrates stacked at an opening of a wall element, there existed the problem of constructing the detection device in such a way that the detection of the position of the substrates can be performed more flexibly with respect to the course of measurement |
| 6986636 |
Device for positioning disk-shaped objects |
January 17, 2006 |
| A device for positioning disk-shaped objects (1) to inspect the front and rear sides of disk-shaped objects and to reduce the negative effect of large-area contact between the holder and the disk-shaped object. The device comprises a rotatable table (24) which can be adjusted in the x-y |
| 6576687 |
Wet-strength agent with low DCP content |
June 10, 2003 |
| The invention relates to a novel process for the preparation of polycondensate solutions based on polyamidoamine/epichlorohydrin resins that gives products having a very low content of organic chlorine compounds, in particular a 1,3-dichlorophenol-2-propanol content of <0.1%, in c |
| 6426381 |
Fine-particle polymer dispersions for paper sizing |
July 30, 2002 |
| This invention relates to aqueous polymer dispersions obtained by free radical emulsion copolymerization of ethylenically unsaturated monomers comprising (a) 30 to 60% by weight of at least one optionally substituted styrene, (b) 60 to 30% by weight of at least one C.sub.1 -C.sub.4 -al |
| 6387296 |
Optically brightened plastics for optically brightening paper-coating compounds and paper-coatin |
May 14, 2002 |
| Paper coating slips having high whiteness, high greying limit and high lightfastness can be prepared with the aid of whitened finely divided plastics. |
| 6310132 |
Sizing agents for paper |
October 30, 2001 |
| This invention relates to novel aqueous emulsion polymers obtained by free-radical initiated addition polymerization of at least one monomer in the presence of degraded starch and at least one polymeric emulsifier from the series of sulfo-containing maleic anhydride copolymers and/or |
| 6143132 |
Process for imparting wet strength to paper |
November 7, 2000 |
| The novel AOX-free process for imparting wet strength to paper with water-dispersible polyisocyanates is distinguished by a good wet-strength effect, even under mild drying conditions, and does not affect the activity of optical brighteners used at the same time. |
| 6090871 |
Paper finishing aid |
July 18, 2000 |
| This invention relates to compositions comprising a polyisocyanate having ionic groups or polyether groups and at least one member selected from the group consisting of a naturally occurring polymer, a polysiloxane graft copolymer, a water-dilutable synthetic polymer and a cationic polym |
| 6080831 |
Water-dispersible polyisocyanates |
June 27, 2000 |
| Cellulose-containing, optionally wood-containing materials which have been obtained using water-dispersible polyisocyanates which in turn have been prepared by reaction of the following starting components:a) modified polyisocyanates of the formula (I) ##STR1## in which: R.sup.1 den |
| 6022449 |
Paper finishing process using polyisocyanates with anionic groups and cationic compounds |
February 8, 2000 |
| The use of water-dispersible polyisocyanates with anionic and/or potentially anionic groups and cationic and/or potentially cationic compounds in paper finishing leads not only to higher retention but also to improved dry and wet strength and sizing. |
| 6008289 |
Coating slips with polyisocyanates |
December 28, 1999 |
| The present invention relates to pigmented coating slip suitable for the production of coated papers and boards containing(a) a coating pigment,(b) 5 to 20%, based on the coating pigment, of at least one synthetic binder,(c) optionally, 0.01 to 20%, based on the coating pigment, of a natural |
| 5739249 |
Chlorine-free multifunctional resins for paper finishing |
April 14, 1998 |
| The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterised in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which |
| 5718804 |
Process for the production of cellulose-containing sheet-like structures which have been given a |
February 17, 1998 |
| Process for the production of optionally wood-containing cellulose-containing sheet-like structures, such as paper, pasteboard and card, which have been given a dry strength and/or wet strength treatment and have improved whiteness, using water-dispersible isocyanates, wherein the wa |
| 5688371 |
Process for fixing disruptive substances in papermaking |
November 18, 1997 |
| Process for fixing anionic interfering substances in papermaking process by the addition of cationic polycondensation products obtained by reactinga) a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups withb) cyanamide, dicyandiam |
| 5685034 |
Hospital bed with integrated toilet facility |
November 11, 1997 |
| A hospital bed includes a frame assembly having a two-part mattress support comprised of a head mattress support and a foot mattress support, with the head mattress support including a head portion and a horizontal ramp articulated to one another, and with the foot mattress support inclu |
| 5503714 |
Chlorine-free multifunctional resins for paper finishing |
April 2, 1996 |
| The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterized in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which |
| 5314721 |
Process for sizing paper |
May 24, 1994 |
| The new vinyl polymer dispersions are obtainable by free radical polymerisation of olefinically unsaturated monomers in the presence of a cationic polyamidoamine which has been rendered hydrophobic, and can be used as sizing agents for paper which are distinguished, in particular, by |
| 5288787 |
Emulsion polymers |
February 22, 1994 |
| Emulsion polymers obtainable by emulsifying a mixture consisting ofA) 5 to 95 % by weight of at least one monomer from the series consisting of acrylonitrile, methacrylonitrile, optionally substituted styrene, vinyl carboxylate andB) 5 to 95 % by weight of acrylic and/or methacrylic esters,t |
| 5258466 |
Paper size |
November 2, 1993 |
| Emulsion polymers which are prepared by free-radical polymerisation of monomers in the presence ofa) polymers of the formulae ##STR1## wherein the radicals have the meanings given in the description, and b) low-molecular anionic emulsifiers,are outstandingly suitable as surface size |
| 5013794 |
Polymers of diisobutylene-sulfonate alkane maleic acid derivatives |
May 7, 1991 |
| Polymers obtainable by subjecting at least one monomer, polymerizable by free radicals, to a free-radical emulsion polymerization in the presence of a polymer of the formulae I and/or II ##STR1## in which M, n, R, R.sup.1, R.sup.2, x and y have the meanings mentioned in the descr |
| 4931510 |
Polymers from ethylenic monomers |
June 5, 1990 |
| Polymers obtainable by subjecting at least one monomer, polymerizable by free radicals, to a free-radical emulsion polymerization in the presence of a polymer of the formulae I and/or II ##STR1## in which M, n, R, R.sup.1, R.sup.2, x and y have the meanings mentioned in the descr |
| 4904727 |
Emulsion polymers |
February 27, 1990 |
| Emulsion polymers obtained by emulsifying a monomer mixture of(A) 5-95% by weight of acrylonitrile, methacrylonitrile and/or substituted or unsubstituted styrene and(B) 5-95% by weight of acrylic and/or methacrylic acid esters containing 1-12 carbon atoms in the alcohol group,the sum of comp |
| 4888128 |
Paper-coating slips containing fluorescent brighteners |
December 19, 1989 |
| Fluorescent brightener salts of the formula ##STR1## in which A denotes the anion of an anionic cellulose fluorescent brightener,R.sub.1 denotes alkyl, alkenyl, aralkyl, aryl or cycloalkyl,R.sub.2, R.sub.3 and R.sub.4 denote hydrogen or R.sub.1, or together, including the N atom, for |
| 4806591 |
Cationic sizing agents for paper |
February 21, 1989 |
| Cationic sizing agents for paper, obtainable by a process in which a water-soluble cationic terpolymer compound, built up in a chemically uniform manner, of (a) 7 to 40% by weight of N,N-dimethylaminoethyl acrylate and/or methacrylate, (b) 40 to 80% by weight of styrene and (c) 4 to |
| 4771097 |
Tub sizes for paper |
September 13, 1988 |
| Tub sizes for paper, containing aqueous or aqueous-alcoholic alkali metal, amine or ammonium salt solutions of copolymers of maleic anhydride and diisobutylene and, if appropriate, a vinyl monomer of the formula ##STR1## in which R designates H, --CH.sub.3, --C.sub.2 H.sub.5, --OR.su |
| 4726302 |
Method of reducing the nitrogen oxide content of a flue gas produced by a fossil-fuel power plan |
February 23, 1988 |
| A method of reducing the nitrogen oxide level in flue gases from a fossil-fuel power plant in which NH.sub.3 is admixed with the flue gas as a reducing agent and the nitrogen oxides are largely converted to molecular nitrogen by reducing them with the ammonia in a reactor. Residual a |
| 4670100 |
Aqueous solutions or dispersions of polyisocyanate addition products, a process for their prepar |
June 2, 1987 |
| The present invention relates to aqueous solutions or dispersions of polyisocyanate addition products which contain about 2 to 300 milliequivalents per 100 g of solids of chemically incorporated ternary or quaternary ammonium groups and up to about 25% by weight, based on solids, of |
| 4636545 |
Aqueous dispersions of graft polymers or copolymers, a process for their production and their us |
January 13, 1987 |
| The present invention relates to aqueous dispersions of graft polymers or graft copolymers containing as the graft base an aqueous polyurethane dispersion optionally containing block polyisocyanates in dispersed form as crosslinker and, as the graft covering, a polymer or a copolymer of |
| 4631317 |
Production of sulphonic acid group-containing acrylonitrile polymers and monomers therefor |
December 23, 1986 |
| Sulphonic acid-and sulphonate group-containing acrylonitrile polymers are advantageously obtained by precipitation copolymerization in aliphatic hydrocarbons using ethylenically unsaturated sulphonic esters free from carboxylic acid and carboxylic acid ester groups as comonomers and |
| 4590236 |
Process for the production of hydrophobicizing and oleophobicizing agents |
May 20, 1986 |
| The present invention relates to a process for the production of emulsions containing graft copolymers of ethylenically unsaturated perfluoroalkyl monomers on acrylate dispersions and to the use thereof as hydrophobicizing and oleophobicizing agents. |
| 4501865 |
Polymerization process |
February 26, 1985 |
| It is possible to remove quantities of heat from exothermically running polymerization reactions of vinyl monomers in heterogeneous phase, in a sophisticated manner by adding liquids to the reaction medium for the removal of heat and to regulate the reaction temperature, which liquids do |
| 4446291 |
Process for the continuous production of acrylonitrile-vinyl chloride copolymers |
May 1, 1984 |
| The invention relates to a process for the continuous production of a chemically uniform copolymer comprising 15 to 50% by weight of acrylonitrile and from 85 to 50% by weight of vinyl chloride and, optionally, up to 4% by weight of at least one other copolymerized ethylenically unsa |
| 4420225 |
Lens of a homo- or copolymer of a fluorine containing styrene polymer |
December 13, 1983 |
| A homopolymer or copolymer which contains, as a monomer unit, at least one styrene of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of one another denote hydrogen, fluorine or partly or completely fluorinated alkyl or alkoxy andR.sup.4 and R.sup.5 independe |
| 4334046 |
Production of copolymers of acrylonitrile and vinyl chloride |
June 8, 1982 |
| The invention relates to a process for the production of a chemically uniform acrylonitrile vinyl chloride copolymer in an aqueous emulsion in the presence of a redox catalyst and with a fluctuating concentration of at least one iron salt in the reaction medium wherein the polymerization |
| 4134935 |
Dental varnishes |
January 16, 1979 |
| Graft copolymers or telomerisates made of polyisocyanates and a copolymer of methylmethacrylate bearing isocyanategroups or groups reactive with isocyanates can be employed as dental varnishes. They demonstrate high abrasion resistance, are quick drying and hardening, and possess excelle |
| 4118556 |
Process for the production of acrylonitrile-vinyl-chloride copolymers with improved whiteness |
October 3, 1978 |
| The invention relates to a process for the production of chemically uniform acrylonitrile-vinyl chloride copolymers with improved whiteness and improved thermal stability comprising from 25 to 60% by weight of acrylonitrile and from 40 to 75% by weight of vinyl chloride and, optional |
| 4100339 |
Process for preparing acrylonitrile/vinyl chloride copolymers having an increased viscosity whic |
July 11, 1978 |
| The invention relates to a process for the production of chemically uniform copolymers of acrylonitrile and vinyl chloride and, optionally, other copolymerizable ethylenically unsaturated compounds, by the method of emulsion polymerization in the presence of an anion active emulsifier an |
| 3936511 |
Process for the production of acrylonitrile-vinyl chloride copolymers |
February 3, 1976 |
| The invention relates to a process for the production of acrylonitrile-vinyl chloride copolymers, consisting of 20 - 85 % by weight of acrylonitrile and of 80 - 15 % by weight of vinyl chloride wherein the process is carried out in the presence of a latex of acrylonitrile-vinyl chlor |
