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| Number | Title | Issue Date |
| 5667911 | Methods of making cross-ply microporous membrane battery separator, and the battery separators made thereby Continuous seamless cross-plied battery separators are formed by bringing at least two anisotropic with respect to mechanical strength (e.g. uniaxially oriented), microporous plies into adhering face contact such that the uniaxial orientation of one micro... | 09/16/1997 |
| 5611934 | Process for dye removal A process for dye removal from effluent is disclosed which includes treating the effluent with a reducing agent, adjusting the pH to a selected value in the range of 2-7, treating the effluent with a particular charge neutralization mixture, adjusting the... | 03/18/1997 |
| 5582735 | Removal of organics from a fluid using a permeable membrane A method for removing condensable organics from a fluid is disclosed. A fluid contaminated with condensable organics is provided. A poly (alkyl sulfone) permeable membrane having a selectivityࣙ20 is provided. The fluid is passed along a surface of the m... | 12/10/1996 |
| 5565281 | Shutdown, bilayer battery separator The present invention is directed to a shutdown, bilayer battery separator and a process for making the same. A first microporous membrane with shutdown capability and a second microporous membrane with strength capability are joined together in face-to-f... | 10/15/1996 |
| 5504120 | Recycling cellulose esters from the waste from cigarette manufacture A process for recycling waste from the manufacture of filtered cigarettes is disclosed herein. The process comprises the following steps: A waste stream from the manufacture of filtered cigarettes is provided. The waste stream includes tobacco, filter tip... | 04/02/1996 |
| 5504119 | Recycling cellulose esters from the waste from cigarette manufacturing A process for recycling waste from the manufacture of filtered cigarettes is disclosed herein. The process comprises the following steps: A waste stream from the manufacture of filtered cigarettes is provided. The waste stream includes tobacco, filter tip... | 04/02/1996 |
| 5502239 | Process for recovering dimethyl terephthalate A process for recovering dimethyl terephthalate (DMT) comprises the steps of: providing a dimethyl terephthalate stream including dimethyl terephthalate, glycols, and coordination compounds; acidifying the coordination compounds to disassociate the ligand... | 03/26/1996 |
| 5491024 | Photodegradable cellulose ester tow The present invention is directed to a man-made fiber comprising a cellulose ester and 0.05 to 5.0% by weight of a titanium dioxide having an average particle size of less than 100 nanometers.... | 02/13/1996 |
| 5462072 | Removal of nicotine from tobacco smoke The instant invention is directd to the removal of nicotine from tobacco smoke by the use of compounds containing a metal with a valence of +2.... | 10/31/1995 |
| 5449457 | Liquid membrane modules with minimal effective membrane thickness and methods of making the same Modules for use in fluid separations, especially contained liquid membrane separations, exhibit minimal effective membrane thickness. The modules have a module case and at least one pair of superposed fabric sheets disposed within the case, the fabric she... | 09/12/1995 |
| 5433994 | Superabsorbent structure The instant invention is directed to an article of manufacture for absorbing liquids. This invention comprises: a superabsorbent structure; and a permeable means for coating the superabsorbent structure. The superabsorbent structure comprises a superabsor... | 07/18/1995 |
| 5431979 | Cut-resistant tarpaulin A cut-resistant tarpaulin has a waterproof coating bonded to a cut-resistant woven fabric. The fabric has a leno or gauze weave. The fabric has warp yarns and weft yarns of braided fibers. The fibers have an initial modulus greater than 400 grams per deni... | 07/11/1995 |
| 5419955 | Method for immobilizing superabsorbent polymer and products derived therefrom The present invention provides super absorbent materials in the form of sheets or fibers made from high melting polymers and having super absorbent polymer material dispersed uniformly throughout. The materials are capable of incorporating large amounts o... | 05/30/1995 |
| 5414107 | Process for recycling polyethylene terephthalate process residues containing alkali metal organic salts A process for recycling by-products produced from a process for the manufacture of polyethylene terephthalate is disclosed. The process includes the steps of: (a) providing ethylene glycol distillation bottoms from an ethylene glycol recovery unit associa... | 05/09/1995 |
| 5414106 | Process for recovering dimethyl terephthalate A process for recovering dimethyl terephthalate (DMT) is disclosed. The process includes the steps of: (a) providing a DMT stream, the DMT stream including DMT, catalyst, and ethylene glycol; (b) adding a solvent to the DMT stream, the solvent being immis... | 05/09/1995 |
| 5377697 | Cigarette filter test apparatus and associated method for measuring filter hot collapse and tobacco consumption A test apparatus includes an optical displacement transducer for sensing deformation of the cigarette filter responsive to a predetermined load applied transverse to the filter during simulated smoking of the cigarette, and a barcode laser scanner for sen... | 01/03/1995 |
| 5362766 | Method for immobilizing superabsorbent polymers by homogenization of a suspension of same A method for the manufacture of an absorbent material containing a superabsorbent polymer is disclosed herein. The processing steps include: providing a matrix material in a suitable solvent; mixing particles of a superabsorbent polymer into said solution... | 11/08/1994 |
| 5355567 | Process for preparing engineered fiber blend The invention is directed to a process for preparing a blended tow of thermoplastic and reinforcing fibers. The process of the invention includes the steps of forming a substantially planar spaced array of thermoplastic multifilament yarns and superimposi... | 10/18/1994 |
| 5336464 | Extrusion blow molding of thermotropic liquid crystalline polymers An extrusion blow molding process for a heat-treated, liquid crystalline polymer is provided. By the process, molten polymer having improved melt strength, is vertically extruded downward into space through a parison-forming, annular gap. Sag resistant pa... | 08/09/1994 |
| 5336286 | High efficiency air filtration media A high efficiency air filtration media comprises: about 5 to about 20% by weight of fibrids; about 5 to about 20% by weight of a binder; and about 60 to about 90% by weight of staple fiber. The media has a pressure drop of air across a face of the media o... | 08/09/1994 |
| 5331976 | Transport jet adapter Apparatus and method are provided for supplying cellulose acetate tow for the manufacture of cigarette filters from the transport jet of a tow opener to a cigarette filter rodmaking garniture. The apparatus is a frustoconical member having a multiplicity ... | 07/26/1994 |
| 5328934 | Recycling cellulose esters from the waste from cigarette manufacture A process for recycling waste from the manufacture filtered cigarettes is disclosed herein. The process comprises the following steps: A waste stream from the manufacture of filtered cigarettes is provided. The waste stream includes tobacco, cellulose est... | 07/12/1994 |
| 5316705 | Process for the production of cellulose ester fibrets An improved process for the production of cellulose ester fibrets wherein a thickened slurry of the fibrets in a liquid mixture of a solvent for the fibrets and a fibret non-solvent is contacted with saturated steam in the separation of the solvent from t... | 05/31/1994 |
| 5306461 | Extrusion blow molding of filled liquid crystal polymers An extrusion blow molding process for a filled, liquid crystalline polymer is provided. By the process, molten polymer having improved melt strength, is vertically extruded downward into space through a parison-forming, annular gap. Sag resistant parisons... | 04/26/1994 |
| 5298430 | Immunoassay process utilizing a cellulose organic ester fibret support element Immunoassay process for the detection of an antigen in a sample of blood, serum, urine and other liquids employing a test apparatus comprising a reaction chamber and a support element in the reaction chamber comprising a blend of from about 5 to 95 percen... | 03/29/1994 |
| 5266255 | Process for high stress spinning of polyester industrial yarn A process for high stress spinning of polyethylene terephthalate yarns to produce a yarn of improved mechanical properties is disclosed. The process of the invention is conducted by spinning polyethylene terephthalate polymer through a spinneret having a ... | 11/30/1993 |
| 5238740 | Drawn polyester yarn having a high tenacity and high modulus and a low shrinkage The instant invention is directed to a drawn polyester yarn. This yarn is characterized by an initial secant modulus greater than 150 grams per denier/100%. The yarn may be further characterized by either a shrinkage of less than 8% or a tenacity of great... | 08/24/1993 |
| 5215804 | Planar substrate with a regularly textured surface on at least one side Planar casting with a regularly textured surface on at least one side. A self-supporting planar casting made of polymer material and a process to produce the same are described. The planar casting contains at least one inert additive in an amount in the r... | 06/01/1993 |
| 5200123 | Process for producing ultra thin thermoplastic films The invention relates to the production of ultra thin films. This process involves the biaxial stretching of at least two films wherein the joining of these films has been improved by electric corona discharge treatment.... | 04/06/1993 |
| 5186879 | Spinning process for producing high strength, high modulus, low shrinkage yarns A process for spinning an organic synthetic melt spinnable polymer includes the steps of: extruding the polymer through a spinneret; passing the filaments from the spinneret through an elongated zone; maintaining the filaments at a temperature above the g... | 02/16/1993 |
| 5175276 | Process for the production of cellulose ester fibrets An improved process for the production of cellulose ester fibrets wherein a thickened slurry of the fibrets in a liquid mixture of a solvent for the fibrets and a fibret non-solvent is contacted with saturated steam in the separation of the solvent from t... | 12/29/1992 |
| 5162152 | Poly(2-methyl-1,5-pentylene)terephthalamide: a method of using: a method of spinning: and a method of making Poly(2-methyl-1,5-pentylene) terephthalamide is discussed herein. It is manufactured in a process starting with a nylon salt made from terephthalic acid and 2-methyl-1,5-pentylene diamine and an excess amount of the diamine. The polymer is spun to form mo... | 11/10/1992 |
| 5162151 | Polyphenylene sulfide monofilaments and fabrics therefrom A monofilament, and a fabric made, at least in part with that monofilament, is formed by a blend of two resins. The first resin is a melt extrudable polymer selected from the group consisting of copolymers of at least two halogenated monomers, for example... | 11/10/1992 |
