Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7189464 | Cellulose acylate film and producing method thereof In a multi-layer structure of a cellulose acylate film, the averaged degree of acylation of surface layers is controlled in the range of 0.5 to 2.8 by mixing several sorts of cellulose acylates having different averaged degrees of acyation. One of the surface layers... | 03/13/2007 |
| 6939961 | Method for the production of low-viscous water soluble cellulose ethers A process for preparing low-viscosity water-soluble cellulose ethers by the oxidative decomposition of higher-viscosity cellulose ethers with hydrogen peroxide is described. The process involves: (a) forming, under conditions of intensive mixing and at temperatures ... | 09/06/2005 |
| 6746732 | Triacetyl cellulose film with reduced water transmission property Disclosed is a triacetyl cellulose film comprising (a) an unsubstituted triphenyl phosphate compound and (b) a lower alkyl-substituted triphenyl phosphate ester compound. Such a film exhibits a reduced rate of water vapor transmission. ... | 06/08/2004 |
| 6342467 | Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations A chemical system and method to stop or minimize fluid loss during completion of wells penetrating hydrocarbon formations are provided. The inventions relates to formulating a highly stable crosslinked hydroxyethyl cellulose (HEC), control released viscos... | 01/29/2002 |
| 6320042 | Polarizing plate protective cellulose triacetate film A cellulose triacetate film characterized in being comprised of cellulose triacetate which is prepared by employing cotton liter as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 3.5 to 4.5, or... | 11/20/2001 |
| 6248879 | Polyanhydride crosslinked fibrous cellulosic products and process for their preparation A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a po... | 06/19/2001 |
| 6229009 | Polycarboxylic based cross-linked copolymers A cross-linked copolymer based on at least one non-crosslinked polycarboxylic polysaccharide and at least one second non-crosslinked polycarboxylic polymer which is not a polycarboxylic polysaccharide and a cross-linking agent having at least two amine fu... | 05/08/2001 |
| 5990304 | Cellulose acetate excellent in physical strength, and process for production thereof An object of the invention is to obtain cellulose acetate with improved physical properties, particularly film strength arid improved flexibility of the molded product. Cellulose acetate wherein average degree of acetylation is not less than 59%, viscosit... | 11/23/1999 |
| 5981739 | Polyanhydride crosslinked fibrous cellulosic products and process for their preparation A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a po... | 11/09/1999 |
| 5962677 | Cellulose acetate with high moldability and process for production thereof Cellulose acetate having a high moldability and low solution viscosity in spite of having a high average degree of polymerization is obtained. The low molecular weight components of cellulose acetate (e.g., CTA having average degree of acetylation of 59.0... | 10/05/1999 |
| 5945528 | Method of producing starch decomposition products Disclosed is the production of starch decomposition products with a narrow molecular weight distribution, based on the treatment of starch or starch derivatives using high-pressure homogenization. The starch decomposition products are obtained in high yie... | 08/31/1999 |
| 5919920 | Cellulose acetate with high moldability and process for production thereof Cellulose acetate having a high moldability and low solution viscosity in spite of having a high average degree of polymerization is obtained. The low molecular weight components of cellulose acetate (e.g., CTA having average degree of acetylation of 59.0... | 07/06/1999 |
| 5914397 | Cellulose acetate excellent in physical strength, and process for production thereof An object of the invention is to obtain cellulose acetate having improved physical properties, particularly film strength and improved flexibility of the molded product. Cellulose acetate having an average degree of acetylation of not less than 59%, visco... | 06/22/1999 |
| 5674999 | Process for preparing readily dispersible water-soluble cellulosic polymers An improved process for surface treating water soluble cellulosic polymers with crosslinking agents to provide products which are more readily dispersible in cold water, and have longer viscosity delay times than can be achieved with polymers treated in l... | 10/07/1997 |
| 5610233 | Aqueous coating compositions containing cellulose esters This invention relates to aqueous coating compositions containing water soluble cellulose esters which are cross-linked with a resin system in the presence of an organic sulfonic acid catalyst for the formation of a film. The cellulose esters contain a lo... | 03/11/1997 |
| 5597912 | Process for preparing cellulose esters by use of carboxylic acids Process for reducing the degree of substitution of cellulose esters employing carboxylic acids as solvolysis promoters is disclosed. Exemplary cellulose esters are cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate, ... | 01/28/1997 |
| 5532350 | Crosslinked polysaccharides useful as absorbent materials A solid composition of matter comprising one or more polysaccharides which has been cross-linked with either titanium or zirconium cross-linking agents is provided. The composition demonstrates absorbent properties and is useful in absorbent articles of m... | 07/02/1996 |
| 5424302 | Process for the production of starch degradation products with a narrow molecular weight distribution A process is described for the production of starch degradation products with a narrow molecular weight distribution which is characterized in that a native starch, a starch derivative, a partially hydrolysed starch or a partially hydrolysed starch deriva... | 06/13/1995 |
| 5294703 | Process for preparing -D-cellobiose octaacetate Provided is a novel improved process for the preparation of -D-cellobiose octaacetate via the acetylative degradation of cellulose or cellulose acetate. The title compound is provided in high yield and quality in a facile one-pot process, amenable ... | 03/15/1994 |
| 5142034 | Cellulose ester compositions and process for the preparation thereof Process for reducing the degree of substitution of cellulose esters employing Lewis acids as solvolysis promoters is disclosed. Novel low degree of substitution cellulose esters produced by the invention process are also described.... | 08/25/1992 |
| 4963666 | Material of polysaccharides containing carboxyl groups, and a process for producing such polysaccharides Method of crosslinking carboxyl-containing polysaccharides in that the polysaccharide is at first activated with a bi- or polyfunctional reagent, and then after removal of any potential excess of activating reagent the crosslinking is performed during dry... | 10/16/1990 |
| 4932986 | Cross-linked gas selective membranes Membranes which are used for the separation of gases comprise cellulose acetate membranes which have been crosslinked with an organic titanate. The membranes are prepared by solvent exchanging a cellulose acetate membrane through a series of baths of decr... | 06/12/1990 |
| 4918180 | Preparation of cellulose ethers A process for reducing the dust content of cellulose ethers comprises reacting the cellulose ether with an aggregating agent comprising (1) a polypropylene glycol or a propoxylated alcohol and (2) an ethylene oxide/propylene oxide copolymer.... | 04/17/1990 |
| 4889561 | Moisture sensitive material A moisture sensitive material prepared by crosslinking cellulose acetate through at least one compound selected from the group consisting of compounds containing two or more isocyanate groups; compounds containing two or more epoxy groups; compounds conta... | 12/26/1989 |
| 4590265 | Carboxylated cellulose ester and manufacture thereof The present invention provides a novel cellulosic material and a process for preparing the same. The cellulosic material is a carboxylated cellulose ester material having an acid number of at least about 5, an inherent viscosity of from about 0.01 to abou... | 05/20/1986 |
| 4543410 | Absorbent cellulosic base structures Absorbent, coherent, flexible structures in the form of fibrous webs and porous sponges comprising water-insoluble, ring oxidized cellulosic bases consisting of water-insoluble cellulose ethers, cellulose mixed ethers ring oxidized forms of these cellulos... | 09/24/1985 |
| 4461892 | Process for preparing porous spherical cellulose particles A process for preparing porous, spherical cellulose particles which comprises suspending a cellulose organic ester solution dissolved in a chlorinated hydrocarbon solvent into an aqueous medium to form droplets of the solution, evaporating the chlorinated... | 07/24/1984 |
| 4415734 | Process for preparation of cellulose acetate Secondary cellulose acetate (cellulose diacetate) of improved whiteness is produced by ripening primary cellulose acetate (cellulose triacetate) using a lower aliphatic alcohol instead of an aqueous medium.... | 11/15/1983 |
| 4390691 | Process for preparing porous spherical cellulose particles A process for preparing porous, spherical cellulose particles which comprises suspending a cellulose organic ester solution dissolved in a chlorinated hydrocarbon solvent into an aqueous medium to form droplets of the solution, evaporating the chlorinated... | 06/28/1983 |
| 4281998 | Solvent-resistant alkylated melamine cross-linked cellulose ester articles A process is disclosed for treating cellulose ester articles which comprises applying to the surface of the articles a solution of alkylated melamine such as hexamethoxymethylmelamine and an acid catalyst. The solution is applied such as to result in a de... | 08/04/1981 |
| 4269972 | Process for producing cellulose diacetate having improved resistance to delustering phenomenon in hot water Cellulose diacetate having improved resistance to delustering in hot water is produced by acetylation cellulose in the presence of a catalyst and then hydrolyzing (or ripening) the product to form secondary cellulose acetate; wherein the catalyst in the a... | 05/26/1981 |
| 4090022 | Porous cellulose beads Porous cellulose beads are prepared by distributing droplets of a solvent mixture containing a cellulose derivative into a precipitating solution to form porous beads which are then washed and hydrolyzed to form porous cellulose beads. The porous cellulos... | 05/16/1978 |
| 4063017 | Porous cellulose beads and the immobilization of enzymes therewith Porous cellulose beads are prepared by distributing droplets of a solvent mixture containing a cellulose derivative into an aqueous solution to form porous beads which are then washed and hydrolyzed to form porous cellulose beads. The porous cellulose bea... | 12/13/1977 |
| 3971627 | Epoxy-azido compounds Disclosed are epoxy-azido compounds of the formula ##EQU1## WHERE R is a polyvalent organic radical, R' is a hydrogen, alkyl, cycloalkyl, aryl, or aralkyl radical, A is ##EQU2## and n and m are integers from 1 to 100. Also disclosed is the use o... | 07/27/1976 |
