Patents by Inventor Robert Siegl

Robert Siegl 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).

  • Publication number: 20240100742
    Abstract: The invention relates to a method in which a starting material for injection-molding, having a viscosity of between 0.50 and 0.7 dL/g, is produced with the aid of a chain breaker from a recycled post-consumer PET having a viscosity of between 0.72 and 0.86 dL/g according to ASTM D4603 and a copolymer fraction of at most approximately 3%. In the method, the comminuted and dried PET material is melted and decontaminated to such a degree that it is suitable for applications in the food sector and the consumer goods sector. A chain breaker is added to the rPET material in the melt of the recycling extruder and/or preferably the melt of the injection unit in order to lower the viscosity and to enrich the PET with copolymers.
    Type: Application
    Filed: February 8, 2022
    Publication date: March 28, 2024
    Inventors: Robert Siegl, Benjamin Haas
  • Patent number: 11912458
    Abstract: A plastic container manufactured from a preform with a mass share of at least 80% polyester and possibly an additive from the group consisting of dyes, fillers, catalysers, additives and lubricative additives. The plastic container comprises a container neck and a container shoulder which connects with the container neck and merges into a container body closed by a container base. The container shoulder, the container base and the container body are exclusively reshaped by a 2-stage stretch blow moulding method. The polyester is a copolyester and comprises groups which originate from the monomers cyclohexanedimethanol (CHDM) and/or monoethylene glycol (MEG), terephthalic acid (TPA) or its derivatives and isophthalic acid (IPA) or its derivatives. At least a part-region of the container body and/or of the container shoulder comprises a sharp edge with a radius of less than 0.5 mm. A method of manufacturing the plastic container is also described.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: February 27, 2024
    Assignee: ALPLA Werke Alwin Lehner GmbH & Co. KG
    Inventors: Robert Siegl, Christian Zmölnig
  • Publication number: 20240051185
    Abstract: The invention relates to a recycling method for producing a polyolefin recyclate, involving the process of removing contaminants from a contaminated polyolefin material, in which the contaminated polyolefin material is soaked in a solvent in a soaking step in order to dissolve contaminants present in the contaminated polyolefin material in the solvent and to remove the solvent and the contaminants dissolved in the solvent from the polyolefin material. According to the invention, prior to the soaking step, a washing step carried out using water, cleaning agents and/or lye. The contaminated polyolefin material is changed by the soaking/solvent recycling method such that (i) more than 90% of the low-molecular chains of below 2000 daltons are removed or washed out, and the average molecular chain length of the polyolefin recyclate is therefore increased, and (ii) the melt volume-flow rate (MVR) of the polyolefin recyclate is reduced to a specified MVR.
    Type: Application
    Filed: December 16, 2021
    Publication date: February 15, 2024
    Inventor: Robert Siegl
  • Patent number: 11897641
    Abstract: The present disclosure relates to an aerosol container made of plastic, the container having a neck, the opening of which is closeable in a pressure-tight manner by a valve unit that can be actuated by a pushbutton, the container being Tillable with a liquid or gaseous propellant and a liquid to be sprayed. The aerosol container can be an injection cast preform with an elongated tubular preform body. The preform body is closed by a dome-shaped convex preform base, beyond which an integrally formed stand region projects in an axial direction. The preform body adjoins the opening of the neck at the opposite axial longitudinal ends of the preform body.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 13, 2024
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO.KG
    Inventor: Robert Siegl
  • Patent number: 11794378
    Abstract: Presented and described is a method for reclaiming thermoplastic materials intended for recycling, such as, for example, polyethylene terephthalate (PET), in the form of flakes. According to the invention, in a first step, the flakes are exposed to an oxidative fluid and heat until contaminated flakes are modified such that, in a second step, they are separated from the remaining flakes as a result of this modification.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: October 24, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11794398
    Abstract: A method for producing a blow molded plastic bottle starting from a preform comprises providing a preform with a specific wall thickness distribution and a blow mold are provided, the cavity of the mold having at least one channel at the locations of the plastic bottle that are to be strengthened. Subsequently, the preform is heated in such a way that the portion of the preform that correlates with the channel of the cavity is thinned to a lesser extent during the stretching and/or blow, and an accumulation of plastics material is brought about in the channel during the main blow molding operation. A plastic container produced by this process has strengthening elements formed as at least one outwardly protruding bead of material and have a wall thickness that is at least 30%, greater than the wall thickness of a portion of the wall adjacent to the bead of material.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: October 24, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11708473
    Abstract: The invention relates to a method in which a polyester melt containing one or more polyesters is produced, the polyester melt being foamed by a blowing agent and a foamed granulate is produced from the foamed polyester melt. The intrinsic viscosity (IV) of the polyester melt is reduced by the blowing agent about at least 0.05 dl/g, measured according to ASTM D4603, and the IV of the foamed granulate is then increased by means of a solid phase polycondensation (SSP).
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: July 25, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Robert Siegl, Andreas Weber
  • Publication number: 20230182365
    Abstract: The invention relates to a method for producing an EBM bottle with 0.90 to 1.5 dL/g from a bottle-grade PET post-consumer recycling flake, i.e., a recycled, post-consumer PET with a viscosity of 0.65 to 0.84 dL/g, using extrusion processes, solid state polycondensation processes, and a blowing process.
    Type: Application
    Filed: March 15, 2021
    Publication date: June 15, 2023
    Inventors: Robert Siegl, Andreas Weber
  • Publication number: 20230166428
    Abstract: Process for deodorization of recycled polyolefin pellets (23) in three steps: In a first step, the moist pellets (23) are contacted with a circulating inert gas at a temperature between 110° C. and 160° C. in a steam stripper (11), and the steam is precipitated in a condensate trap (29). In a second step, the pellets (23) are sent to a vacuum silo (13) under negative pressure and contacted with a gas flowing in countercurrent. In a third step, after the vacuum silo (13) the pellets (23) are sent to a first heat exchanger (15) and contacted with the gas flowing in countercurrent from the second step.
    Type: Application
    Filed: March 31, 2021
    Publication date: June 1, 2023
    Inventors: Robert Siegl, Michael Heyde
  • Patent number: 11642814
    Abstract: The invention relates to a preform for producing a plastic container in a blow moulding method, comprising an elongated, preform body, which is formed so as to be closed at the one longitudinal end thereof and, at the other longitudinal end thereof, has a neck section having a pouring opening. The preform is produced from recycled PET and aliphatic furanoate, wherein the recycled PET has a maximum of 2.5 wt % of isophthalic acid and diethylene glycol, wherein the proportion of isophthalic acid is no higher than 2.0 wt %, and the proportion of diethylene glycol is no higher than 2.0 wt %, wherein all the percentages by weight are based on the total weight of the preform. Turbidity of the preform, measured in accordance with ASTM D I 003-00, is less than 5%, as a result of the admixture of the aliphatic furanoate.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: May 9, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11598648
    Abstract: A method detects a lane for a transverse guidance of a vehicle. The transverse guidance of the vehicle is based on a roadway model. The method has the steps of ascertaining one or more features which are suitable for influencing the detection of the lane; detecting a lane on the basis of a sensor system of the vehicle; and ascertaining the roadway model on the basis of the detected lane and the ascertained one or more features. The method optionally has the steps of additionally receiving navigation data and transversely guiding the vehicle on the basis of the ascertained roadway model.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 7, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Christoph Pietruska, Jan-Ullrich Schamburek, Robert Siegl, Michal Siwak
  • Publication number: 20220371764
    Abstract: The invention relates to a refillable plastic container (100) which comprises a neck (10) having a neck opening (11) and a container body enclosing a filling volume which are separated from one another by a substantially radially protruding support ring (30). The neck of the plastic container has an axial length (L) equal to or less than 17.25 mm, measured from a mouth rim (12) of the neck opening to an underside of the support ring.
    Type: Application
    Filed: September 23, 2020
    Publication date: November 24, 2022
    Inventor: Robert SIEGL
  • Publication number: 20220009666
    Abstract: The invention relates to a plastic container which is stretch blow-molded from a preform and which comprises a container body having a container neck attached thereto, on which container neck there is provided an outlet opening, wherein the container body has a second opening closed by a weld seam. The container is made from a copolyester. The wall of the stretched container body has a stretching ratio relative to the wall of the unstretched container neck in the region of the at least one weld seam of more than 6:1. After the welding, the stretched container body has a density increase relative to the unstretched container neck in the region of the at least one weld seam of less than 0.06 g/cm3.
    Type: Application
    Filed: November 5, 2019
    Publication date: January 13, 2022
    Inventor: Robert Siegl
  • Publication number: 20220009667
    Abstract: A plastic container manufactured from a preform with a mass share of at least 80% polyester and possibly an additive from the group consisting of dyes, fillers, catalysers, additives and lubricative additives. The plastic container comprises a container neck and a container shoulder which connects with the container neck and merges into a container body closed by a container base. The container shoulder, the container base and the container body are exclusively reshaped by a 2-stage stretch blow moulding method. The polyester is a copolyester and comprises groups which originate from the monomers cyclohexanedimethanol (CHDM) and/or monoethylene glycol (MEG), terephthalic acid (TPA) or its derivatives and isophthalic acid (IPA) or its derivatives. At least a part-region of the container body and/or of the container shoulder comprises a sharp edge with a radius of less than 0.5 mm. A method of manufacturing the plastic container is also described.
    Type: Application
    Filed: November 5, 2019
    Publication date: January 13, 2022
    Inventors: Robert SIEGL, Christian ZMÖLNIG
  • Publication number: 20210316484
    Abstract: Presented and described is a method for reclaiming thermoplastic materials intended for recycling, such as, for example, polyethylene terephthalate (PET), in the form of flakes. According to the invention, in a first step, the flakes are exposed to an oxidative fluid and heat until contaminated flakes are modified such that, in a second step, they are separated from the remaining flakes as a result of this modification.
    Type: Application
    Filed: August 6, 2019
    Publication date: October 14, 2021
    Inventor: Robert Siegl
  • Publication number: 20210269613
    Abstract: The invention relates to a method in which a polyester melt containing one or more polyesters is produced, the polyester melt being foamed by a blowing agent and a foamed granulate is produced from the foamed polyester melt. The intrinsic viscosity (IV) of the polyester melt is reduced by the blowing agent about at least 0.05 dl/g, measured according to ASTM D4603, and the IV of the foamed granulate is then increased by means of a solid phase polycondensation (SSP).
    Type: Application
    Filed: March 2, 2018
    Publication date: September 2, 2021
    Inventors: Robert Siegl, Andreas Weber
  • Patent number: 11046481
    Abstract: A stand sleeve for an inner-pressure-resistant plastic container, wherein the stand sleeve includes a base part having a stand surface, and a jacket which is closed in the peripheral direction, the base part and the jacket being configured as a single molded piece, and the jacket being configured for a non-positive connection to an outer wall in proximity of the base of an inner-pressure-resistant plastic container.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: June 29, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11028248
    Abstract: The invention relates to a recycling process for contaminated polyolefins, in particular HDPE, wherein the contaminated polyolefin is swelled using a solvent such that contaminants in the polyolefin dissolve in the solvent, and the solvent as well as the contaminants dissolved from the solvent are removed from the polyolefin.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: June 8, 2021
    Inventors: Robert Siegl, Andreas Weber
  • Patent number: 11020886
    Abstract: A method is disclosed for producing thin-walled small plastic parts having an average wall thickness of less than about 1.5 mm, wherein the small plastic parts are produced in a plastic injection-molding method from polyethylene furanoate (PEF) having a viscosity of, for example, 0.3 dl/g to 0.7 dl/g, for example, preferably less than e.g., 0.6 dl/g, measured according to a measurement method as per ASTM D4603, which polyethylene furanoate has an exemplary water content of less than 100 ppm in the plastic injection process.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: June 1, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11014280
    Abstract: A preform is disclosed for producing a plastic container. The production of the preform as well as a plastic container that is produced from the preform and its production are also disclosed.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 25, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl