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| Number | Title | Issue Date |
| 5294483 | Coating paper with copolyester Disclosed is a method of providing a thin copolyester coating on paper wherein the coating has good peel strength which comprises extruding a film of copolyester onto paper to form a coated sheet and passing the paper through a nip formed by a pair of coo... | 03/15/1994 |
| 5282294 | Apparatus for producing layered material An apparatus is disclosed for producing a band of rectangular cross section having at least two layers of material. The apparatus includes means for advancing a first band along a predetermined linear path and means for guiding a second band into layered ... | 02/01/1994 |
| 5283295 | Polymer blends useful for forming extrusion blow molded articles Disclosed is a polymer blend having excellent clarity and impact strength which is suitable for use in extrusion blow molding processes comprising a) about 50-95 wt % of a polyester having repeat units from at least 95 mol % terephthalic acid, at least 90 mol ... | 02/01/1994 |
| 5275859 | Tobacco smoke filter Disclosed are articles, such as smoke filters, which contain fibers that have complex geometry in combination with tobacco smoke modifying agents such as flavorants. The fibers are preferably made of a polyester such as poly(ethylene terephthalate) and pr... | 01/04/1994 |
| 5262110 | Apparatus and method for spinning filaments Apparatus and method are disclosed for spinning filaments from a material such as cellulose acetate dope. The filaments are spun from a spinnerette at the top of a vertically elongated spinning cabinet. Gas is first directed parallel to the filaments as t... | 11/16/1993 |
| 5239020 | Polyester/polycarbonate blends Disclosed is a composition of matter comprising a homogeneous blend of polyester and a polycarbonate of 4,4-isopropylidenediphenol, the composition having a Gardner b value of less than 10 and a Gardner a value of less than 4. The polyester is produced us... | 08/24/1993 |
| 5206291 | Polymer compositions having improved impact strength Disclosed are polymer compositions having improved impact strength, comprising copolyesters of terephthalic acid, ethylene glycol and 1,4-cyclohexanedimethanol with epoxy functional polyolefins.... | 04/27/1993 |
| 5194523 | Polyester/polycarbonate blends having improved clarity and impact strength Disclosed are clear thermoplastic molding compositions comprising an aromatic polycarbonate, a polyester of terephthalic acid and 1,4-cyclohexanedimethanol, and the copolymeric transesterification product of the polycarbonate and polyester.... | 03/16/1993 |
| 5156905 | Shaped articles from melt-blown, oriented fibers of polymers containing microbeads Disclosed are molded articles comprising a melt blown assembly of thermally bonded, longitudinally oriented fibers, said fibers comprising a continuous polymer matrix having dispersed therein microbeads of a material which is incompatible with said polyme... | 10/20/1992 |
| 5150621 | Apparatus for collecting samples of articles conveyed at high speed in consecutive order This invention relates to apparatus for collecting consecutive samples of articles from a production line which are being conveyed at a high rate of speed. Samples are collected from the production line by transferring them to a conveyor which carries the... | 09/29/1992 |
| 5145742 | Polymer pellet configuration for solid-state polymerization Disclosed is a configuration for a polymer pellet having improved reactivity for solid-state polymerization and less tendency to stick during processing with heat. The pellets have a reduced path length for volatiles to travel to the exterior of the pelle... | 09/08/1992 |
| 5137790 | Polyester/polyesteramide blends Disclosed are polymer blends, and articles made from such blends, of polyesteramides and polyesters or copolyesters. The polymer blends are useful in forming coinjection molded or coextruded structures with polyesters.... | 08/11/1992 |
| 5124388 | Films and containers of heat resistant copolyesters Disclosed are films, containers and container liners comprising a copolyester having repeat units from terephthalic acid and 1,4-cyclohexanedimethanol, and a hindered phenolic antioxidant.... | 06/23/1992 |
| 5106944 | Process and catalyst-inhibitor systems for preparing poly(1,4-cyclohexenedimethylene terephthalate) Disclosed is a process for preparing polyesters of dimethyl terephthalate with 1,4-cyclohexanedimethanol using a catalyst comprising a titanium alkoxide and an alkaline earth metal salt.... | 04/21/1992 |
| 5070122 | Environmentally degradable polymer blends Environmentally degradable blends comprising ethylene-carbon monoxide copolymers, polysaccharide, and optionally, unsaturated oil are disclosed. The invention polymer blends are both photodegradable and biodegradable.... | 12/03/1991 |
| 5055207 | Filtration of cellulose ester dope Disclosed are method and apparatus for filtering particles and gels from cellulose ester dope by passing the dope in plug flow through a tubular filter so as to cause particles and gels to migrate towards the center of the stream and shear forces along th... | 10/08/1991 |
| 5049698 | Process for manufacturing 2-chloro-1,3-diketo compounds A novel process for producing 2-chloro-1,3-diketo compounds of the formula ##STR1## wherein Q is an amino, substituted amino or hydrocarbyloxy group, e.g., --OCH3, wherein the 1,3-diketo precursor in solution in a low boiling alcohol is ne... | 09/17/1991 |
| 5041499 | Impact resistant polymer blends Disclosed is a polymer blend having improved low-temperature impact strength comprising a copolyester of terephthalic acid, ethylene glycol and 1,4-cyclohexanedimethanol, and a styrene-butadiene block copolymer.... | 08/20/1991 |
| 5021289 | Reinforced polymeric sheet material Disclosed is glass fiber reinforced thermoplastic sheet material suitable for various compression molding applications. The glass fibers useful in this invention are described in detail, and the thermoplastic composition is poly(ethylene terephthalate), p... | 06/04/1991 |
| 5021495 | Polyester molding composition having improved flame resistant Disclosed is a composition comprising a polyester of terephthalic acid, 1,4-butanediol and/or 1,4-cyclohexanedimethanol, a halogenated organic compound, an antimony compound and a polymer of at least one olefin which contains acid, anhydride or epoxide fu... | 06/04/1991 |
| 5017680 | Process and catalyst-inhibitor systems for preparing poly(ethylene terephthalate) Disclosed is a polymer and process for producing the polymer using a complex of titanium alkoxide with an alkali or alkaline earth metal salt.... | 05/21/1991 |
| 5013820 | Preparation of poly(ethlene-2,6-naphthalene dicarboxylate) from dimethyl-2,6-naphthalene dicarboxylate and methyl hydrogen 2,6-naphthalene dicarboxylate This invention relates to a method of preparing poly(ethylene 2,6-naphthalene dicarboxylate) by the polycondensation reaction of ethylene glycol and dimethyl-2,6-naphthalene dicarboxylate, using a dimethyl-2,6-naphthalene dicarboxylate starting material w... | 05/07/1991 |
| 5010908 | Apparatus for cleaning the interior of elongated tubular objects Disclosed is an apparatus for cleaning the interior of elongated tubular objects such as pipes, tubes, etc., using a reciprocating lance having a cleaning fluid spray head at its end. Fluid pressure provides reciprocating movement to the lance. The cleani... | 04/30/1991 |
| 5011977 | Transesterification of alkoxyesters Method for the highly selective transesterification of alkyl 3-alkoxypropionates, as well as several novel alkoxypropionate compounds, are provided. Transesterification catalyzed by titanium alkoxides or tin compounds does not catalyze the Michael reactio... | 04/30/1991 |
| 5010165 | Dimensionally stable polyester melt blown web A dimensionally stable polyester melt blown web composition is disclosed. The polyester melt blown web is obtained by contacting the web with a solvent, and drying the web. The solvents which are used have total solubility parameters (So) of 8.... | 04/23/1991 |
| 5006604 | ABS/copolyester blends A blend of a terephthalic acid/ethylene glycol/cyclohexanedimethanol copolyester and an acrylonitrile/butadiene/styrene copolymer is disclosed. This blend possesses high notched Izod impact strength while maintaining a good balance of flexural modulus pro... | 04/09/1991 |
| 4994312 | Shaped articles from orientable polymers and polymer microbeads Disclosed is a shaped article comprising a continuous oriented polymer matrix having dispersed therein microbeads of a polymer which are at least partially boredered by void space, the microbeads being present in an amount of about 5-50% by weight based o... | 02/19/1991 |
| 4985293 | Polymer blend for molded circuit boards and other selectively conductive molded devices The use of an amorphous polymer blended with a semicrystalline polymer to render the latter susceptible to adhesion promotion for good peel strength after electroless copper plating, while maintaining the advantages of the semicrystalline polymer includin... | 01/15/1991 |
| 4978569 | Process for preparing selectively metallized articles Disclosed is a process for preparing a selectively metallized article, and to the article prepared by this process. The process comprises: 1. swelling a polymeric article with dimethylformamide for a length of time of 1 to 5 minutes; 2. treating the polymeric ... | 12/18/1990 |
| 4972015 | Thermoformed polyester articles Disclosed is a shaped, thin-walled, thermoformed, heat-set article, the composition of which comprises: (a) a crystallizable polyester having repeating units from at least 90 mol % terephthalic acid and repeating units from at least 90 mol % 1,4-cyclohexa... | 11/20/1990 |
| 4948654 | Sheet material useful in forming protective and decorative coatings A sheet material for covering substrates comprising (a) a carrier layer comprising a polymer selected from polyesterethers, copolyesters and blends thereof, and (b) a tie layer bonded thereto, said tie layer being a low molecular weight polymer containing... | 08/14/1990 |
| 4946932 | Water-dispersible polyester blends A method of preparing water-dispersed polymer blends, comprising the steps of: (i) preparing an aqueous polymerization mixture by adding to water, a sulfonate group-containing polyester or polyesteramide, one or more ,ଲ-unsaturated monomers a... | 08/07/1990 |
| 4942005 | Method of making a shaped polyester article Disclosed is a method of making shaped articles including a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being present in an am... | 07/17/1990 |
| 4939009 | Multilayered sheets having excellent adhesion Disclosed are multilayered sheets or films which have excellent adhesion. The sheets or film comprise a layer of copolyesterether or copolyester bonded to a layer of polyolefin by means of a tie layer of a copolymer of ethylene and at least one other unsa... | 07/03/1990 |
| 4939233 | Aqueous polymer compositions and methods for their preparation An aqueous dispersion comprising a polyester having repeat units from at least one difunctional sulfomonomer containing at least one metal sulfonate group attached to an aromatic nucleus wherein the functional groups are carboxyl or hydroxyl, and a polyme... | 07/03/1990 |
| 4929714 | Flexible, biaxially oriented films of modified poly (ethylene terephthalate) Disclosed are flexible, biaxially oriented films of poly(ethylene terephthalate) modified with a long chain dibasic acid or glycol. This material is useful in packaging applications where resistance to flex cracking is important.... | 05/29/1990 |
| 4917761 | Method of rendering polymeric materials hydrophilic for etching Disclosed is a method of rendering polymeric materials hydrophilic by treating the material sequentially with different solvents. The method is especially useful in the preparation of polymeric substrates for etching.... | 04/17/1990 |
| 4917660 | Apparatus for producing cylindrical filters Tows of fibers are wrapped around a mandrel or a central fiber core to form a cylindrical filter. At least one belt is located in position to make essentially linear contact with the cylindrical filter, and the at least one belt is driven so as to draw th... | 04/17/1990 |
| 4908210 | Lactylic salt tablet formulations and tablets Disclosed are tabletable formulations and tablet produced therefrom. The formulations comprise an active ingredient such as a medicament or nutrient, and an improved lubricant which comprises monoglycerides, propylene glycol monoesters, and a salt of a fa... | 03/13/1990 |
| 4904748 | Blends of poly(etheresters) and polyesters Disclosed are compositions comprising a blend of blends comprising (A) about 98-2 weight % of a flexible poly(etherester) having recurring units from 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70%, a glycol component consisting ... | 02/27/1990 |
