Patents by Inventor Halim Baris
Halim Baris has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5922463Abstract: The monofilament for precision woven fabrics is made of a polyethylene terephthalate/polydialkyl siloxane copolymer having a silicon content from 0.05 to 2.0 percent by weight, a polyethylene terephthalate proportion of at least 85% by weight, a diameter from 0.01 to 0.1 mm, an elongation at break of less than 30%, a strength of at least 45 cN/tex, a modulus of elasticity at 5% extension greater than 500 cN/tex and a fibrillation characterizing parameter from 0.0 to 0.5.Type: GrantFiled: March 17, 1997Date of Patent: July 13, 1999Assignee: Rhodia Filtec AGInventors: Halim Baris, Etienne Fleury
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Patent number: 5759685Abstract: The process of making the soil-repellent and abrasion-resistant monofilament includes transesterifying dimethylterephthalate with ethylene glycol; adding to the resulting reaction mixture from 0.15 to 5 percent by weight of a polydialkylsiloxane of formula I:--CO--R.sub.1 --?Si(R.sub.2).sub.2 --O!.sub.n --Si(R.sub.2).sub.2 --R.sub.1 --CO-- (I),wherein n is the number of repeated --Si(R.sub.2).sub.2 --O-- groups and R.sub.1 or R.sub.2 represent the same or different radicals with 2 to 20 carbon atoms; then polycondensing to form a linear silicone-modified polyethylene terephthalate in which the polydialkyl siloxane of formula I is inserted into a polyethylene terephthalate polymer chain thereof; and extruding the linear silicone-modified polyethylene terephthalate to form a monofilament consisting of the silicone-modified polyethylene terephthalate having a silicon content of 0.05 to 2.0% by weight. The monofilament product has a cross-section with a diameter of from 0.1 to 1.Type: GrantFiled: February 27, 1995Date of Patent: June 2, 1998Assignee: Rhone-Poulenc Viscosuisse S.A.Inventors: Halim Baris, Etienne Fleury
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Patent number: 5514472Abstract: The dirt-repellent monofilament with a toughness of at least 36 cN/tex and an extension of under 44% has a soiling index A1>2 after five soiling and cleaning cycles. To manufacture the dirt-repellent monofilaments, a copolymer with a melting point of 255.degree. to 275.degree. C. and consisting of alkenes and perfluoroalkenes is added to a polymer melt of polythylene terephthalate before extrusion. The dirt-repellent monofilament is advantageously used in the manufacture of cleaning filters for the dry section of a paper machine, i.e. paper machine fabric filters. It may also be used to produce fabrics for general use as technical fabrics which have to be cleaned in difficult conditions.Type: GrantFiled: August 10, 1995Date of Patent: May 7, 1996Assignee: Rhone-Poulenc Viscosuisse S.A.Inventors: Halim Baris, Erwin Lerch
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Patent number: 5472780Abstract: The soil-repellent monofilament for paper machine wire-cloths consists of at least 85% by weight of polyethylene terephthalate having a viscosity index (V.I.) of at least 96 dl/g and an added copolymer prepared from alkenes and perfluoroalkenes having a melting point from 255.degree. to 275.degree. C. To make the soil-repellent monofilament 1.5 to 5% by weight of tetrafluoroethylene is included by addition to the polymer melt of polyethylene terephthalate prior to extrusion. The soil-repellent monofilament produced by this method has a soiling index of <2 after 5 soiling and cleaning cycles.Type: GrantFiled: April 29, 1994Date of Patent: December 5, 1995Assignee: Rhone-Poulenc Viscosuisse SAInventors: Halim Baris, Erwin Lerch
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Patent number: 5431999Abstract: A process of high-speed spinning of a set of thermoplastic monofilaments having a linear density from 1 to 30 dtex, includes spinning to obtain melt-spun thermoplastic monofilaments and airblast cooling of the melt-spun monofilaments. To produce a particularly fine monofilament at high winding speeds, the process also includes guiding the thermoplastic monofilaments directly over a fork-like friction element having axially parallel, spaced apart upper and lower contacting friction surfaces during the airblast cooling, and then spin finishing and winding up the thermoplastic monofilaments. An apparatus for melt-spinning including the friction element is described. The product monofilament produced by the process can have an elongation of 20 to 45%, a strength of 36 to 60 cN/tex; a boil shrinkage of 2 to 15%; an Uster % less than 1 and a uniformly round cross section.Type: GrantFiled: April 27, 1993Date of Patent: July 11, 1995Assignee: Rhone-Poulenc Viscosuisse S.A.Inventors: Klaus Fischer, Halim Baris
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Patent number: 5266254Abstract: A process of high-speed spinning of a set of thermoplastic monofilaments having a linear density from 1 to 30 dtex, includes spinning to obtain melt-spun thermoplastic monofilaments and airblast cooling of the melt-spun monofilaments. To produce a particularly fine monofilament at high winding speeds, the process also includes guiding the thermoplastic monofilaments directly over a fork-like friction element having axially parallel, spaced apart upper and lower contacting friction surfaces during the airblast cooling, and then spin finishing and winding up the thermoplastic monofilaments. An apparatus for melt-spinning including the friction element is described. The product monofilament produced by the process can have an elongation of 20 to 45%, a strength of 36 to 60 cN/tex; a boil shrinkage of 2 to 15%; an Uster % less than 1 and a uniformly round cross section.Type: GrantFiled: September 16, 1991Date of Patent: November 30, 1993Assignee: Rhone-Poulenc Viscosuisse SAInventors: Klaus Fischer, Halim Baris
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Patent number: 5227110Abstract: In a process for manufacturing fast-spin highly oriented amorphous polyester filament yarns, the shock cooling is achieved by means of a rotating cooling surface formed by the contact surface of a cooling cylinder. Filament yarns having a desired boiling shrinkage up to 70% and a birefringence larger than 0.08 can be obtained by varying the duration of contact between the filament yarns and the cooling cylinder and/or the distance between the spinneret and the cooling cylinder.Type: GrantFiled: May 23, 1991Date of Patent: July 13, 1993Assignee: Viscosuisse S.A.Inventors: Klaus Fischer, Halim Baris
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Patent number: 4939296Abstract: Catalytically-active metallic glasses containing at least one element from a subgroup of the periodic system and at least one element from a main group of the periodic system. Process for the production of catalytically-active metallic glasses where the metallic glass is produced from at least one element from a subgroup of the periodic system and at least from one element from a main group of the periodic system. The metallic glasses are activated by self-activation or by an oxidative and/or reductive treatment. The catalytically-active metallic glasses can be used as hydration, oxidation or isomerization catalysts.Type: GrantFiled: April 14, 1989Date of Patent: July 3, 1990Assignee: Lonza Ltd.Inventors: Volker Franzen, Hans-Joachim Guntherodt, Alphons Baiker, Erich Armbruster, Halim Baris
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Patent number: 4735789Abstract: Catalytically-active metallic glasses containing at least one element from a subgroup of the periodic system and at least one element from a main group of the periodic system. Process for the production of catalytically-active metallic glasses where the metallic glass is produced from at least one element from a subgroup of the periodic system and at least from one element from a main group of the periodic system. The metallic glasses are activated by self-activation or by an oxidative and/or reductive treatment. The catalytically-active metallic glasses can be used as hydrogenation oxidation or isomerization catalysts.Type: GrantFiled: July 25, 1985Date of Patent: April 5, 1988Assignee: Lonza Ltd.Inventors: Volker Franzen, Hans-Joachim Guntherodt, Alphons Baiker, Erich Armbruster, Halim Baris
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Patent number: 4727202Abstract: Catalytically-active metallic glasses containing at least one element from a subgroup of the periodic system and at least one element from a main group of the periodic system. Process for the production of catalytically-active metallic glasses where the metallic glass is produced from at least one element from a subgroup of the periodic system and at least from one element from a main group of the periodic system. The metallic glasses are activated by self-activation or by an oxidative and/or reductive treatment. The catalytically-active metallic glasses can be used as hydrogenation, oxidation or isomerization catalysts.Type: GrantFiled: May 18, 1987Date of Patent: February 23, 1988Assignee: Lonza Ltd.Inventors: Volker Franzen, Hans-Joachim Guntherodt, Alfons Baiker, Erich Armbruster, Halim Baris