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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 4944854 | Electret process and products Continuous processes for the preparation of electrets and the products produced thereby, including filter fabrics, are disclosed. The process employs a continuous film or continuous filaments in the form of a tightly packed warp having a warp density as d... | 07/31/1990 |
| 4933236 | Polyester yarn and adhesively activated with a quaternary ammonium salt of a polyepoxide A composition for the adhesive activation of polymeric material. The composition is comprised of a non-resinous quaternary ammonium salt of a polyepoxide wherein the nitrogen atom of the ammonium group is bonded directly to a carbon atom of the polyepoxid... | 06/12/1990 |
| 4929769 | Novel polyether containing at least one 2-halomethyloxyethylene unit and 2,3-dihydroxypropyl end groups A halogenated polyether is provided having a chemical structure which has been found to possess the requisite characteristics for satisfactory service as a promoter of good adhesion between a polymeric surface (e.g., a polyethylene terephthalate tire cord... | 05/29/1990 |
| 4912176 | Sintered polybenzimidazole/polyaryleneketone articles and method of manufacture Sinterd molded article having improved thermal resistance and strength formed from a homogeneous mixture comprising from about 5 to 75 percent by weight polybenzimidazole and from about 95 to 25 percent by weight of a polyaryleneketone.... | 03/27/1990 |
| 4899678 | Method and apparatus for testing sewing thread The present invention permits the testing of the sewing characteristics of various types of sewing threads under conditions which simulate the normal conditions encountered when performing various fabric seaming operations in the conventional manner. The ... | 02/13/1990 |
| 4861537 | Process of making a sintered polybenzimidazole article Sintered polybenzimidazole articles are obtained by compacting a particulate, dried polybenzimidazole resin under a pressure of 2,000 to 10,000 psi in a mold, heating the formed article to a temperature in the range of 825° to 950° F. for at least four ... | 08/29/1989 |
| 4828178 | Method and apparatus for dispersing liquids or melts An improved method and apparatus for producing an disbursing uniform liquid or melt droplets employing a core-fed rotating sprayer having multiple tiers of orifices.... | 05/09/1989 |
| 4824930 | Polymerization process for the preparation of poly(butylene terephthalate) A process is disclosed for the preparation of polymeric butanediol ester of terephthalic acid by means of ester interchange process having improved rates of polymerization to produce polyesters having improved color. The process employs the neat addition ... | 04/25/1989 |
| 4821750 | Cigarette filters Skinless shaped articles having increased specific surface area and based on cellulose esters, including both solid and hollow fibers, can be produced with at least one surface having a striated or fibrous appearance and a cellular interior structure by e... | 04/18/1989 |
| 4816336 | Synthetic fiber having high neutralized alkyl phosphate ester finish level A two-component staple fiber finish is disclosed which renders polyester staple fiber having low to normal modulus and tenacity-at-break fit for "100%" open end spinning. A synthetic fiber having from about 0.08 to about 0.15 weight percent, based on the ... | 03/28/1989 |
| 4814530 | Sintered polybenzimidazole article Sintered polybenzimidazole articles are obtained by compacting a particulate, dried polybenzimidazole resin under a pressure of 2,000 to 10,000 psi in a mold, heating the formed article to a temperature in the range of 825° to 950° F. for at least four ... | 03/21/1989 |
| 4798152 | Dynamic test system for sewing threads A fiberoptic bundle has one end disposed in the bed of a sewing machine in opposition to the stitch formation region below the throatplate. A strobe light for periodically illuminating the region and a camera for recording visual images of the region are ... | 01/17/1989 |
| 4785548 | Apparatus and method for accurately setting the cutting gap of a fiber cutting assembly An apparatus and method for accurately setting a cutting gap of a fiber cutting assembly of the type having a cutter reel with a plurality of radially spaced apart, cutting blades and a presser roll mounted adjacent to the cutter reel and having a periphe... | 11/22/1988 |
| 4752348 | Localized liquid additive applicator system for continuous cylindrical product A continuous rod of a product such as a cigarette filter material is coated with a treating liquid by being passed axially through a cylindrical applicator zone comprising a permeable cylindrical wall, the cylindrical wall being concentrically enclosed wi... | 06/21/1988 |
| 4751143 | Process for treating chemically stabilized, adhesive activated polyester material, polyester material treated by the process and an improved finish composition The aging period for chemically stabilized, adhesive activated polyester material can be reduced by contacting the material before it is substantially drawn or stretched with a composition containing a defined epoxide compound catalyzed with ions of at le... | 06/14/1988 |
| 4746011 | Strapped bale having means which restrain the straps thereof upon severing and method of forming the same A bale of goods, particularly textile goods, and method of forming the same includes covering the bale of goods with a cover and then strapping the bale with at least one tensioned strap which encompasses the bale. A restraining tape extends generally tra... | 05/24/1988 |
| 4744932 | Process for forming a skinless hollow fiber of a cellulose ester A skinless hollow fiber of a cellulose ester material is formed by providing an aqueous coagulation bath having a tube-in-ring jet immersed therein and extruding a spinning solution comprising at least one cellulose ester material and a solvent therefor d... | 05/17/1988 |
| 4743504 | Polyester yarns produced by high speed melt-spinning processes A spun polyester yarn containing ethylene terephthalate as the main or only recurring unit characterized by a percentage crystallinity (ଲ×102) of less than 20, a birefringence (Ɗn) of at least 50×10-3, a function A greater t... | 05/10/1988 |
| 4739540 | Methods and apparatus for preventing filaments from lapping a roll In an apparatus for advancing a bundle of filaments, a pair of rolls defines a nip through which the bundle passes. A blower blows a stream of gas across an outer periphery of at least one of the rolls in a direction opposite the direction of rotation of ... | 04/26/1988 |
| 4725371 | Partially oriented polyester yarn emulsion finish with elevated pH The invention provides partially oriented polyester yarn finishes capable of substantially reducing the level of broken filaments resulting from polyester yarn texturing. Finishes of the invention are a stable oil-in-water emulsion with the oil phase incl... | 02/16/1988 |
| 4720314 | Process for producing self-crimping polyester yarn Polyester polymer is extruded at different speeds through groups of parallel closely spaced orifices at relatively high spinning speeds. The resulting filament have high and low shrinkage regions substantially regularly spaced apart along their length. A ... | 01/19/1988 |
| 4717764 | Two stage melt polymerization process for making polymers containing aromatic amide groups A two stage process for the production of benzimidazole/aromatic amide polymers and copolymers and wholly aromatic polyamides is provided wherein an aromatic amine component comprising an aromatic diamine or triamine and optionally, an aromatic tetraamine... | 01/05/1988 |
| 4699606 | Apparatus for detecting and/or controlling tension of a moving web, for example, a filamentary tow utilized in the production of cigarette filters Apparatus for detecting and/or controlling tension of a moving web, for example, a filamentary tow, in a preselected zone of a longitudinal path traversed by the moving web. A sensing roller is journally supported by roller support structure, the latter h... | 10/13/1987 |
| 4675378 | Process control system An apparatus and process for the continuous manufacture of high stress, high denier industrial yarn spun from polyethylene terephthalate polyester. A control system continuously measures melt viscosity of the polymer both at the outlet from a polymerizati... | 06/23/1987 |
| 4672104 | Two stage polybenzimidazole process and product A two stage process for the production of polybenzimidazoles is provided wherein an aromatic tetraamine, e.g., 3,3',4,4'-tetraaminobiphenyl, is reacted with a dicarboxylic component consisting of at least one compound having the formula: ##STR1## ... | 06/09/1987 |
| 4670580 | Process for preparing oligomeric glycol esters of dicarboxylic acids The invention provides a process for the preparation of a polyester oligomer capable of being further polymerized to a high polymer wherein a glycol-dicarboxylic acid ester feed is treated in a secondary esterification zone under conditions such that the ... | 06/02/1987 |
| 4661404 | Self-crimping polyester yarn Polyester polymer is extruded at different speeds through groups of parallel closely spaced orifices at relatively high spinning speeds. The resulting filament have high and low shrinkage regions substantially regularly spaced apart along their length. A ... | 04/28/1987 |
| 4628067 | Microporous polybenzimidazole particulates Novel microporous particles of polybenzimidazole (PBI) resin, characterized by a reduced bulk density, a surface area of at least 10 m2 /g, a porosity of at least about 10%, and an average pore diameter of from about 50 to 500 Angstroms are pro... | 12/09/1986 |
| 4623438 | Electret making process using corona discharge Continuous processes for the preparation of electrets and the products produced thereby, including filter fabrics, are disclosed. The process employs a continuous film or continuous filaments in the form of a tightly packed warp having a warp density as d... | 11/18/1986 |
| 4620032 | Depolymerization of condensation polymers involving a pre-molecular weight reduction step There is disclosed a process for reducing the reaction time in the hydrolysis of a condensation polymer wherein molten condensation polymer is intimately admixed with a depolymerizing agent which is either (i) one of the products resulting from the comple... | 10/28/1986 |
| 4615996 | Dual function cracking catalyst (DFCC) composition A novel catalyst composition comprising a solid cracking catalyst and a diluent containing substantially catalytically inactive crystalline aluminosilicate.... | 10/07/1986 |
| 4605762 | Depolymerization of condensation polymers A process for the neutral hydrolytic depolymerization of condensation polymers is described. The process is conducted in a continuous manner and comprises introducing condensation polymer waste material into an aqueous hydrolysis zone at a temperature of ... | 08/12/1986 |
| 4605364 | Melt-spinning apparatus for polyester filaments A melt-spinning apparatus is disclosed for reducing the birefringence variability of melt-spun yarn made at high pack throughputs. It involves extruding polymer at an average mass-flow rate through a first group of orifices (defined by specific location i... | 08/12/1986 |
| 4578510 | Process for minimizing formation of low molecular weight oligomers during hydrolytic depolymerization of condensation polymers A process is described for reducing the amount of low molecular weight oligomers formed during the hydrolysis of a condensation polymer. This process comprises the neutral aqueous hydrolysis of a condensation polymer in which conditions are controlled suc... | 03/25/1986 |
| 4573534 | Cement compositions and method of cementing casing in a well A novel cement composition comprising (1) cement, (2) at least one polysaccharide, and (3) a viscosity modifying amount of a 1,2-dicarbonyl; aqueous slurries prepared from these novel cement compositions and a method of cementing casing in the borehole of... | 03/04/1986 |
| 4574066 | Process for the expeditious formation of a high strength shaped article of poly(6-oxy-2-naphthoate-4-oxybenzoate) Melt extruded poly(6-oxy-2-naphthoate-4-oxybenzoate) shaped articles of relatively high strength and modulus are produced in a lesser period of time than commonly heretofore required in the prior art. The required polymer is capable of exhibiting an aniso... | 03/04/1986 |
| 4557821 | Heavy oil hydroprocessing Heavy or refractory oils are hydroprocessed in the presence of added water and added hydrogen sulfide with or without a slurry catalyst comprising molybdenum sulfide. The water and hydrogen sulfide may originate from the catalyst preparation procedure.... | 12/10/1985 |
| 4547487 | Process for preparing catalysts A process for preparing novel catalysts of increased activity, which comprises mixing alumina with (1) at least one metal compound and (2) an aqueous solution containing at least one dissolved compound therein that imparts to said aqueous solution a pH be... | 10/15/1985 |
| 4535115 | Method of preparation of polyimide acids A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of diglyme and a sufficient amount of a co-solvent to maintain the polyimide acid in solution,... | 08/13/1985 |
| 4529554 | Process for the preparation of nickel ylides containing ylide ligands with a sulfonated group V component A process is provided for preparing nickel ylides which are themselves novel compounds defined by the following Formula I: ##STR1## wherein R1, R2, R3, R4, R5, R6, R7 and R | 07/16/1985 |
