Class 106/171.1 - Cellulose acetate

Subclass of Class 106 - Compositions: coating or plastic
Definition: Compositions wherein the cellulose ester is cellulose acetate.
No. of patents: 35
Last issue date: 09/16/2008

Number	Title	Issue Date
7425589	Method for modifying cellulose ethers The invention relates to a method for modifying cellulose ethers. The inventive method is characterised in that a cellulose ether having a humidity content of between 5 and 90% is intensively mixed with between 0.1 and 5 wt. %—in relation to the dry cellulose ethe...	09/16/2008
7226499	Cellulose acylate film, cellulose acylate film with functional thin film, and method for preparation thereof The present invention relates to a cellulose acylate film having a high modulus of elasticity and a high surface hardness. The cellulose acylate film of the present invention is characterized by containing 1 vol % to 99 vol % of a metal oxide having an average parti...	06/05/2007
7078078	Optical compensatory sheet comprising transparent support and optically anisotropic layer An optical compensatory sheet comprises a transparent support and an optically anisotropic layer. The optically anisotropic layer is formed from liquid crystal molecules and monomers having four or more double bonds. The monomers are polymerized to form a polymer in...	07/18/2006
7052540	Aqueous dispersions of carboxylated cellulose esters, and methods of making them Aqueous dispersions of carboxylated cellulose esters are disclosed having a low organic solvent content. These dispersions can be prepared using a volatile hydrophilic organic solvent and a coupling organic solvent having a lower volatility, the volatile hydrophilic...	05/30/2006
6974608	Cellulose ester film, cellulose ester dope, protective film of polarizing plate and polarizing plate Disclosed is a cellulose ester film comprising a polymer prepared by polymerizing at least one ethylenically unsaturated monomer selected from vinyl esters, vinyl esters having a functional group, acrylic esters, and acrylic esters having a functional group, wherein...	12/13/2005
6872766	Ultraviolet light filter element Ultraviolet light absorbing polymer film, coating, or molded article UV filter elements are described which comprise a polymer phase having molecularly dispersed therein a) a first ultraviolet absorbing dibenzoylmethane compound of formula (I)	03/29/2005
6773497	Cellulose acylate film and method of producing thereof A cellulose acylate film formed from a solution of cellulose acylate contains a solvent of the solution at 0.1-0.6 wt. %, and acids at less than 500 ppm. The solvent is composed of at least one of esters and ketones, and further a recycled solvent recycled from the ...	08/10/2004
6730374	Triacetyl cellulose film with reduced water transmission property Disclosed is a triacetyl cellulose film comprising (a) a triphenyl monophosphate compound and (b) an aromatic polyol-bridged polyphosphate compound. Such a film exhibits a reduced rate of water vapor transmission. ...	05/04/2004
6571802	Molded article of biodegradable cellulose acetate and filter plug for smoking article A molded article molded from a cellulose acetate composition comprising, contained in cellulose acetate, a composite material of a decomposition accelerating agent formed of at least one compound selected from the group consisting of oxygen acid of phosph...	06/03/2003
6468609	UV-absorbing film and its use as protective sheet UV-absorbers of the 4-alkoxy-2-hydroxyphenyl-s-triazine type are incorporated in a cellulose triacetate film. Such an UV-cut off film can be used advantageously, amongst others, as protective sheet for a polarizer in a Liquid Crystal Display....	10/22/2002
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
6036885	Method for making cellulose esters incorporating near-infrared fluorophores A cellulosic ester has associated with the ester at least one near infrared fluorophore. A method for incorporating the near infred fluorophore into the cellulosic ester is also provided. In the method, the near infrared fluorophore is dissolved in a stro...	03/14/2000
5973139	Carboxylated cellulose esters A process for preparing a carboxylated cellulose ester from oxidized cellulose is described. The carboxylated cellulose esters have improved solvent solubility and coating resin compatibility when compared to cellulose esters made from regular grade cellu...	10/26/1999
5871573	UV curable cellulose esters The present invention relates to a modified cellulose ester containing unsaturated pendent groups which can be prepared by reacting a cellulose ester containing residual hydroxyl groups with, for example, maleic anhydride in acetic acid solvent with sodiu...	02/16/1999
5868825	Paint used in forming a magnetic recording medium backcoat layer A magnetic recording medium comprising a magnetic layer, a backing layer, and a support sandwiched between the magnetic layer and the backing layer. The backing layer is made form a coating composition comprising a filler, binder, and a silicone compound ...	02/09/1999
5720804	Top nail coat composition A top coat nail polish composition, which is at least substantially free of ketones and aromatic solvents as well as formaldehyde containing resins and nitrocellulose, contains at least one cellulose ester, a mixture of aliphatic and cycloaliphatic solven...	02/24/1998
5720803	Biodegradable cellulose ester composition and article The composition comprising a cellulose ester including at least 10 weight % of a low-substituted cellulose ester having an average degree of substitu- tion not exceeding 2.15 and giving a 4-week decomposition rate of at least 60 weight % as determined usi...	02/24/1998
5707737	Cellulose acetate fiber having non-circular cross section, multi-filaments thereof, and process for the production thereof A cellulose acetate fiber excellent in gloss and feeling, formed from a mixture which consists essentially of (a) 100 parts by weight of cellulose acetate and (b) 5 to 40 parts by weight of a polymer substance which can plasticize the cellulose acetate, w...	01/13/1998
5609677	Biodegradable cellulose ester composition and article The composition comprising a cellulose ester including at least 10 weight % of a low-substituted cellulose ester having an average degree of substitution not exceeding 2.15 and giving a 4-week decomposition rate of at least 60 weight % as determined using...	03/11/1997
5578119	Moldable sculpting medium A sculpting medium is provided comprising a filler of polymeric microspheres and optionally, a fibrous filler, a thixotropic hydrogel binder and water, all blended in a proportion such that the color of the medium is due primarily to the color(s) of the p...	11/26/1996
5202432	Assay for an analyte on a solid porous support An assay for an analyte wherein sample is applied to a support capable of binding proteins by essentially only hydrogen bonding and fixed on the support. Analyte may be determined on the support by use of a suitable tracer. A preferred support is amphiphi...	04/13/1993
5081169	Organic sulfide stabilized polymeric engineering resins The present invention is directed to a composition comprising a polymeric engineering resin selected from the group consisting of polycarbonates, polyarylethers, polyamides, polyesters, polyacetals, polyaryl sulfides, cellulose esters and styrene copolyme...	01/14/1992
4888147	Process for production of cellulose acetate molding materials A process for producing a cellulose acetate molding material which comprises dissolving cellulose diacetate in a mixed solvent of acetone and water to prepare a dope and then spinning or film forming the dope, wherein at least one compound selected from t...	12/19/1989
4760368	Moisture sensor A moisture sensitive material prepared by cross-linking cellulose acetate through at least one selected from the group consisting of compounds containing two or more isocyanate groups; compounds containing two or more epoxy groups; compounds containing tw...	07/26/1988
4499043	Process for producing a cellulose ester support A process for producing a cellulose ester support is described which comprises producing said support from an organic solvent solution of a cellulose ester containing 30 ppm or less alkaline earth metal....	02/12/1985
4486119	Mesophase dope containing cellulose derivative and inorganic acid A mesophase dope useful for producing shaped articles, for example, filaments and films, comprises at least 10% by weight of at least one cellulose derivative and the balance consisting of an aqueous solution of at least 5% by weight of at least one inorg...	12/04/1984
4482386	Method of conditioning a water swellable hydrocolloid Method to condition water-swellable hydrocolloids for use in mechanical forming processes such as die molding or injection molding. To avoid long conditioning times at high temperature, the hydrocolloids are conditioned to the predetermined water content ...	11/13/1984
4325737	Metal-doped organic foam Organic foams having a low density and very small cell size and method for producing same in either a metal-loaded or unloaded (nonmetal loaded) form are described. Metal-doped foams are produced by soaking a polymer gel in an aqueous solution of desired ...	04/20/1982
4077407	Osmotic devices having composite walls An osmotic device for delivering an active agent is disclosed. The device is comprised of a wall surrounding a compartment and has a passageway through the wall for releasing the agent. The wall is formed of a multiplicity of materials comprising a materi...	03/07/1978
4068387	Solvent drying of cellulose ester membranes Process for drying a water-wet permselective cellulose ester membrane by contacting the membrane with a single water replacement liquid and vaporizing the liquid from the membrane....	01/17/1978
4040856	Production of discrete cellulose acetate fibers by emulsion flashing Discrete cellulose acetate fibers are produced by flashing an emulsion of cellulose acetate, water, and a solvent which is miscible with the water at the temperature at which the emulsion is flashed. The fibers can be used directly to make paper in accord...	08/09/1977
4026978	Method of making asymmetric cellulose triacetate membranes Asymmetric cellulose triacetate semipermeable membranes cast from a solution of cellulose triacetate having an acetyl content of at least 43 percent in a solvent mixture having a ratio of dioxane to acetone of at least about 1.5 to 1, which solution also ...	05/31/1977
3993659	Bis-benzoxazolyl-naphthalenes as optical brighteners 1,4-Bis-benzoxazolyl-(2)'-naphthalenes of the formula ##SPC1## Wherein R denotes optionally non-chromophorically substituted alkyl with 1 to 18 carbon atoms, alkenyl with 2 to 4 carbon atoms, cycloalkyl, aryl or aralkyl, Y denotes hydrogen, alkyl with 1 t...	11/23/1976
3952081	Production of cellulose acetate filamentary material An improved process is provided for the formation of cellulose acetate filamentary material and film. Secondary cellulose acetate is dissolved in a solvent at an elevated temperature and elevated pressure to form a homogeneous solution, with the solvent b...	04/20/1976
3936419	Multichromophoric ultraviolet stabilizers and their use in organic compositions The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composit...	02/03/1976

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Class 106/171.1 - Cellulose acetate