Into Blow Molding Process Patents (Class 264/37.31)
  • Patent number: 8551589
    Abstract: An extruded blow molded bottle comprises a neck portion and a body portion. The body portion comprises a first inner layer and a second layer. The first inner layer comprises a first material selected from a group consisting of polyester, phenoxy type thermoplastics, phenoxy-polyolefin thermoplastic blends, and combinations thereof. The second layer comprises a second material selected from a group consisting of virgin PET, recycled PET, PETG, foam, polypropylene, polyester, polyolefins, phenoxy type thermoplastic, phenoxy-polyolefin thermoplastic blends, regrind scrap materials, and combinations thereof. The second material is different from the first material.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: October 8, 2013
    Assignee: The Concentrate Manufacturing Company of Ireland
    Inventors: Gerald A. Hutchinson, Robert A. Lee, Said K. Farha
  • Publication number: 20120305826
    Abstract: An article based on extruded polystyrene, in the form of a slab, panel or flexible sheet to make heat insulations is made with re-granulated polystyrene from industrial working or production scrap, or from primary production plants.
    Type: Application
    Filed: November 25, 2010
    Publication date: December 6, 2012
    Applicant: POLYMTEC ENGINEERING AG, MAUREN (FL), SUCCURSALE DI LUGANO
    Inventors: Mehmet Celal Gökcen, Giuseppe Walter Locatelli
  • Publication number: 20120301568
    Abstract: A method for forming a receptacle may include providing a mold having a forming surface and a recessed area defining part of the forming surface, the mold having sections that may be separated to open the mold and closed together to close the mold. A molten plastic parison may be provided into the mold when the mold is open, the mold may be closed and the parison may be expanded against the forming surface so that a portion of the parison enters the recessed area. The portion of the parison within the recessed area may be formed by moving a secondary forming feature relative to the mold and parison to define a mount feature.
    Type: Application
    Filed: May 26, 2011
    Publication date: November 29, 2012
    Applicant: TI Automotive Technology Center GmbH
    Inventors: Karsten Hirth, Michael Kunz
  • Publication number: 20120091609
    Abstract: The invention relates to a method and to an assembly for recycling plastic materials, comprising the following processing steps: a) reprocessing the raw material, wherein the material, if necessary, is comminuted and brought into a fluid-like form and heated and permanently mixed, while preserving the lumpiness and pourability thereof, and optionally the viscosity thereof is increased and/or it is degassed, softened, dried and/or crystallized; b) melting the reprocessed material, at least so much that filtration is possible; c) filtering the melt in order to remove impurities; d) homogenizing the filtered melt; e) degassing the homogenized melt; and f) discharging and/or subsequently processing the melt, such as by granulation, blown film processing, with said processing steps being carried out consecutively in the order listed (FIG. 2).
    Type: Application
    Filed: April 14, 2010
    Publication date: April 19, 2012
    Applicant: EREMA ENGINEERING RECYCLING MASCHINEN UND ANALAGEN
    Inventors: Klaus Feichtinger, Manfred Hackl, Gerhard Wendelin
  • Patent number: 8133417
    Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enables the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 13, 2012
    Assignee: Eastman Chemical Company
    Inventors: Marcus David Shelby, Wesley Raymond Hale, Thomas Joseph Pecorini, Martin Emerson Rogers, Spencer Allen Gilliam, Michael Duane Cliffton, Mark Edward Stewart
  • Publication number: 20110180509
    Abstract: An extruded blow molded bottle comprises a neck portion and a body portion. The body portion comprises a first inner layer and a second layer. The first inner layer comprises a first material selected from a group consisting of polyester, phenoxy type thermoplastics, phenoxy-polyolefin thermoplastic blends, and combinations thereof. The second layer comprises a second material selected from a group consisting of virgin PET, recycled PET, PETG, foam, polypropylene, polyester, polyolefins, phenoxy type thermoplastic, phenoxy-polyolefin thermoplastic blends, regrind scrap materials, and combinations thereof. The second material is different from the first material.
    Type: Application
    Filed: August 23, 2010
    Publication date: July 28, 2011
    Inventors: Gerald A. Hutchinson, Robert A. Lee, Said K. Farha
  • Patent number: 7959836
    Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze, and comprising immiscible blends of at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: June 14, 2011
    Assignee: Eastman Chemical Company
    Inventors: Wesley Raymond Hale, Thomas Joseph Pecorini, Mark Edward Stewart, Martin Emerson Rogers, Spencer Allen Gilliam, Michael Duane Cliffton, Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell, Marcus David Shelby
  • Patent number: 7955533
    Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: June 7, 2011
    Assignee: Eastman Chemical Company
    Inventors: Wesley Raymond Hale, Thomas Joseph Pecorini, Mark Edward Stewart, Martin Emerson Rogers, Spencer Allen Gilliam, Michael Duane Cliffton, Marcus David Shelby
  • Patent number: 7153455
    Abstract: The method involves making a hollow blow molded thermoplastic article having an integral handle. An unblown preform of polyethylene terephthalate (PET) is inserted into a blow mold and thereafter stretched by a stretch rod. Blow gas is then injected into the interior of the preform when the blow mold is closed and the preform is at a stretch temperature. After the preform is blown into the shape of the bottle in the mold, blow gas is discharged from the stretch rod onto an interior wall surface where the handle is to be formed. Heated movable mold segments are then advanced within the blow mold from a first retracted position to a second position thereby compressing an interior wall surface of the article into contact with a facing interior wall surface of the bottle to bond the surfaces at an elevated temperature and form an integral handle extending from the exterior wall of the blow molded article.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: December 26, 2006
    Assignee: Sabel Plastechs Inc.
    Inventor: Samuel L. Belcher
  • Patent number: 7108500
    Abstract: Within a process for recycling of PET-material and/or objects of PET, the PET-material to be processed is heated and dried in the course of a pre-treatment step and simultaneously is crystallized at elevated temperature. This pre-treatment step is followed by a main-treatment step under vacuum. In this main-treatment step, the processed material is again dried and crystallized at a temperature that is higher than the temperature of the pre-treatment step. Preferably, also in the main-treatment step no plasticizing of the material takes place; the plasticizing or, respectively, melting of the material takes place only after the main-processing step. An apparatus for performing this process comprises a pre-processing device (3) in which the processed material is dried and simultaneously crystallized at elevated temperature, and, if desired, is also comminuted.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: September 19, 2006
    Inventors: Helmut Bacher, Helmuth Schulz, Georg Wendelin
  • Patent number: 6749780
    Abstract: A preform and method used to make a container which has a blown wide-mouth finish and a multilayer wall structure. The injection molded preform has a multi-layer container body forming portion, a mono-layer moil forming portion and a blown finish forming portion located between the container body forming portion and the moil forming portion. The preform is blown into an intermediate article consisting of a blown finish wide-mouth multi-layer container and a mono-layer moil portion which is severed from the intermediate article and recycled. The multilayer wall structure can include at least one layer of a gas barrier material, a cost-effective recycled material, or a material which strengthens and/or lightweights the container.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: June 15, 2004
    Assignee: Graham Packaging Company, L.P.
    Inventor: John W. Tobias
  • Publication number: 20030211256
    Abstract: A preform (32) and method used to make a container (10, 110) which has a blown wide-mouth finish (20, 120) and a multilayer wall structure. The injection molded preform (32) has a multi-layer container body forming portion (54), a mono-layer moil forming portion (52) and a blown finish forming portion (56) located between the container body forming portion (54) and the moil forming portion (52). The preform (32) is blown into an intermediate article (36) consisting of a blown finish wide-mouth multi-layer container (10, 110) and a mono-layer moil portion (38) which is severed from the intermediate article (36) and recycled. The multilayer wall structure can include at least one layer (22) of a gas barrier material, a cost-effective recycled material, or a material which strengthens and/or lightweights the container (10, 110).
    Type: Application
    Filed: December 10, 2002
    Publication date: November 13, 2003
    Inventor: John W Tobias
  • Patent number: 6555033
    Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: April 29, 2003
    Assignee: Graham Packaging Company, L.P.
    Inventors: David W. Cargile, Earle L. Ellis, David Kesselman, Roy N. Krohn