...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 5792313 | Method for evaporating process wastewater In the evaporation of process wastewater comprising a mixture of different types of wastewater, problems arise due to the formation of reaction products, so-called incrustations, which are difficult to separate. These incrustations clog up the evaporator,... | 08/11/1998 |
| 5788815 | Process for the production of paper A process for the production of paper by mixing an aqueous phase comprising white water with cellulose containing fibres, and optional fillers, in a mixing stage to form an aqueous suspension, draining the suspension in the presence of a drainage or reten... | 08/04/1998 |
| 5777090 | Carboxymethyl inulin Disclosed is carboxymethyl inulin having a degree of substitution (DS) ranging from 0,15 to 2,5, preferably from 0,5 to 1,5, a process for the preparation of said carboxymethyl inulin by reacting inulin at a concentration of at least 100 g/l, preferably a... | 07/07/1998 |
| 5776347 | Method for reducing the content of organic solvent in cellulose-reactive hydrophobing agents The present invention generally relates to a method for reducing the content of organic solvent in an aqueous dispersion of a cellulose-reactive hydrophobing agent, prepared by emulsifying a molten cellulose-reactive hydrophobing agent containing organic ... | 07/07/1998 |
| 5766564 | Process for making aluminosilicate for record material A process for the production of an aluminosilicate containing at least 9 weight percent alumina, having a BET surface area of 300-600 m2 /g, and an average pore volume of of 0.2-0.5 ml/g is disclosed. The process includes the steps of preparing... | 06/16/1998 |
| 5741897 | Process for preparing an N-substitued aldonamide The present invention generally relates to a process for preparing an N-substituted aldonamide by reacting an aldonic acid in a polar organic solvent with an amine of the formula HNR1 (X--NR1)nR2, wherein R1 and R~ may be ... | 04/21/1998 |
| 5720873 | Method of floating calcium carbonate ore and flotation reagent therefor The invention relates to a method of floating calcium carbonate ore containing silicates as impurities. Floatation is performed in the presence of a quaternary ammonium compound and an alkylene oxide adduct of an amine compound. The silicate being concent... | 02/24/1998 |
| 5719243 | Use of peroxyacids as molecular weight regulators A method of radically (co)polymerizing vinyl ester, vinyl halide, diene, acrylonitrile and -olefin monomers, optionally with one or more ethylenically unsaturated monomers, with a polymerization initiator in the presence of an amount of at least on... | 02/17/1998 |
| 5707953 | Fluidized bed coated amidoperoxyacid bleach composition A coated bleach composition for laundering which contains from 1-97 weight percent of an amidoperoxyacid, and 0-98 weight percent of a hydratable amidoperoxyacid compatible material, less than 2.0 weight percent of water, and a coating of 2-30 weight perc... | 01/13/1998 |
| 5700766 | Use of an amphoteric surfactant as a friction-reducing agent An alkoxylated alkanolamide of general formula (I), ##STR1## wherein R is a hydrocarbon group having 7-35 carbon atoms, preferably 9-23 carbon atoms, A is an alkyleneoxy group having 2-4 carbon atoms, and n is 2-20, preferably 3-12, is used for produ... | 12/23/1997 |
| 5698007 | Process for agglomerating particulate material The present invention generally relates to a process of agglomerating particulate material in the presence of water which comprises mixing said particulate matreial with a binding effective amount of at least one water soluble polymer, and a binder enhanc... | 12/16/1997 |
| 5693591 | Activity promoting additives for rest-breaking agents Activity promoting additives (alkoxylated amines and alkoxylated quaternary ammonium compounds) for rest-breaking agents are disclosed. Further, rest-breaking compositions comprising these additives and a rest-breaking agent are also disclosed. Finally, a... | 12/02/1997 |
| 5693133 | Asbestos free roof coatings The present invention generally relates to an asbestos-free roof coating composition which comprises roof-coating asphalt cutback, an amine-based dispersion aid and various optional ingredients including fillers to obtain the desired bulk. The dispersion ... | 12/02/1997 |
| 5690856 | Solid diacyl organic peroxide dispersions The present invention generally relates to solid diacyl organic peroxide formulations in liquid or paste form having improved thermal stability. The formulations generally comprise solid diacyl organic peroxide, a dispersing plasticizer having a solid org... | 11/25/1997 |
| 5681949 | Alkyl glycoside and use thereof In an alkyl glucoside of formula (I) R1 is an alkyl group having 2-5 carbon atoms, preferably 2-4 carbon atom; R2 is an alkyl group having 4-7 carbon atoms, preferably 5 or 6 carbon atoms, the sum of the carbon atoms in R1... | 10/28/1997 |
| 5674958 | Process for (co)polymerizing vinyl monomers The invention relates to a process for (co)polymerizing vinyl monomers in the presence of a radical polymerization initiator, characterized in that said radical polymerization initiator is a 3-methylpentyl-3-peroxy alkanoate of formula (I) wherein R1... | 10/07/1997 |
| 5644041 | Alkyl glycoside its use for cleaning purposes, and cleaning composition The present invention generally relates to an alkyl glycoside of the formula (I): RCH2 O(G)x H, wherein R is an alkyl group having a total of 8-12 carbon atoms and containing 2-4 groups of the formula --CH(CH3)-- in its ca... | 07/01/1997 |
| 5643430 | Electrodialysis treatment A process for reducing the content of organic and inorganic halogen in an aqueous solution of a nitrogen-containing epihalohydrin-based resin, in which process the aqueous resin solution is subjected to an electrodialysis treatment. The aqueous resin solu... | 07/01/1997 |
| 5630992 | Anti-caking agents for ammonium thiocyanate A composition comprising ammonium thiocyanate and an amount of an anti-caking agent selected from amines and amine salts, which is effective to reduce the caking of the ammonium thiocyanate, is disclosed. Also disclosed is a method for reducing the caking... | 05/20/1997 |
| 5628805 | Ethanol fuel and the use of an ignition improver The ignition of an aqueous ethanol fuel is essentially improved by using a water soluble adduct of a polyol having 3-10 hydroxyl groups and ethylene oxide and/or propylene oxide, the molecular weight of the adduct being 350-10,000. The fuel is in the form... | 05/13/1997 |
| 5627224 | Aqueous compositions for sizing of paper The present invention provides a paper sizing composition which comprises a sizing agent selected from cyclic dicarboxylic acid anhydride or alkyl ketene dimer, a stabilizing and/or dispersing agent which is an amphoteric polymer and a polyaluminum compou... | 05/06/1997 |
| 5614592 | Filler-free peroxide masterbatch and process for making it A process for the production of a peroxide masterbatch composition comprising the steps of: a) providing a mixture of an ethylene-propylene copolymer and 10-150 parts by weight, based on the weight of the ethylene-propylene copolymer of a polyoctenamer ru... | 03/25/1997 |
| 5612430 | Process for molecular weight regulation in (co)polymers A polymerization method carried out in the presence of unsaturated organic peroxide chain transfer agents is disclosed. Also disclosed are (co)polymers and oligomers made by this process and articles of manufacture comprising one or more (co)polymers or o... | 03/18/1997 |
| 5610240 | Anti-reversion coagents for rubber vulcanization A rubber composition which is the vulcanization reaction product of a rubber, sulfur or a sulfur donor and particular anti-reversion coagents, is disclosed. The anti-reversion coagents only partially react under sulfur-vulcanization reaction conditions up... | 03/11/1997 |
| 5607552 | Aqueous suspensions of colloidal particles, preparation and use of the suspensions Aqueous suspensions of colloidal particles which particles are both silica based anionic particles and swollen particles of clays of smectite type which are expandable in water and a process for the preparation thereof. The suspensions are useful as flocc... | 03/04/1997 |
| 5603805 | Silica sols and use of the sols Silica sols with a high content of microgel and particles with a specific surface area within the range 300 to 700 m2 /g, preferably 400 to 650 m2 /g. The sols can be prepared by acidification or a water glass solution and alkalizati... | 02/18/1997 |
| 5596125 | Process for the preparation of quaternary diesters The present invention relates to a process for the preparation of quaternary diesters of the formula: ##STR1## wherein X- represents a halogen atom, R1 and R2 are the same or different and are selected from an alkyl g... | 01/21/1997 |
| 5591706 | Aqueous peroxide compositions with improved safety profile This disclosure relates to an aqueous peroxide composition with improved safety profile, the composition comprising a solid, substantially water-insoluble organic peroxy acid stably suspended in an aqueous medium, wherein the aqueous medium also comprises... | 01/07/1997 |
| 5582637 | Method for improving the rheology and the processability of cellulose-based spinning solutions The invention relates to the addition of an alkoxylate having the formula (I) X(NX-R)n NX2 and/or an alkoxylate having formula (II) wherein X is hydrogen, the group R1 CO-, in which R1 is a hydrocarbon group hav... | 12/10/1996 |
| 5559162 | Polymeric peroxycarbonates and process for making them The present invention relates to polymeric peroxycarbonates, a process for making the polymeric peroxycarbonates and initiator compositions comprising these polymeric peroxycarbonates. The polymeric peroxycarbonates of the present invention provide signif... | 09/24/1996 |
| 5552519 | Rosin ester derivative as surfactants Surfactant obtainable by and method for the production thereof comprising (1) esterifying a rosin with an alcohol to an acid value of less than 30, (2a) grafting the rosin ester with an unsaturated carboxylic acid or anhydride, the mole ratio carboxylic a... | 09/03/1996 |
| 5551806 | Process for making cementitious mine backfill in a salt environment using solid waste materials The present invention generally relates to a method for hydraulically backfilling empty mined salt cavities. The method comprises combining at least one pozzolanically active waste material with an effective amount of a cementing agent and brine to form a... | 09/03/1996 |
| 5543066 | Biodegradable fabric softening composition A fabric softening composition containing as essential constituent a biodegradable quaternary ammonium compound, characterized in that the composition comprises at least one or more compounds of the formula: ##STR1## wherein X is an anion, A is an (m... | 08/06/1996 |
| 5525265 | Liquid crystalline and infrared-sensitive liquid-crystalline polyesters Disclosed are liquid-crystalline and infrared-sensitive liquid-crystalline polyesters for optical data storage, processes for the preparation of the same, and an apparatus comprising an infrared-sensitive liquid-crystalline polyester. Owing to covalently ... | 06/11/1996 |
| 5523360 | Process for the modification of polyphenylene ether resin compositions in the presence of a citraconimide compound A process for the modification of a polyphenylene ether resin composition is claimed, said process being carried out in a temperature range of between the melting point and the degradation point of said resin composition and in the presence of an effectiv... | 06/04/1996 |
| 5516885 | Epihalohydrin-based resins having a reduced halogen content The disclosed invention pertains to a process for the preparation of a water-soluble, nitrogen-containing, epihalohydrin-based resin having a reduced content of total halogen, organic halogen, adsorbable organic halogen (AOX)and by-products. The process i... | 05/14/1996 |
| 5510003 | Method of sizing and aqueous sizing dispersion The invention relates to a method of sizing paper and similar cellulose products containing precipitated calcium carbonate as a filler. According to the method, an aqueous suspension of pulp is dewatered and dried in the presence of an aqueous dispersion ... | 04/23/1996 |
| 5508354 | Anti-fatigue coagents for rubber vulcanization Novel metal salts of (poly)citraconimide and (poly)itaconimide carboxylic acids, and a vulcanizable rubber composition comprising these novel metal salts and which, upon vulcanization, exhibits improved dynamic properties, are disclosed. Also disclosed ar... | 04/16/1996 |
| 5502218 | Process for the production of ketene dimers A process for the production of ketene dimers from fatty acid halides by reaction with tertiary amines. The process is operated batchwise and the reaction is started in the presence of an initial reaction mixture containing ketene dimer and pre-prepared c... | 03/26/1996 |
| 5464907 | Process for the modification of -olefin (co) polymers A process for the modification of -olefin (co)polymers to introduce branching, is disclosed. More particularly, the present invention relates to a process of branching -olefins by contacting said -olefins with a peroxide compound cont... | 11/07/1995 |