US Patent No: 4,741,936

Number of patents in Portfolio can not be more than 2000

Laminate preform for a multi-layer polyester bottle

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Abstract

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A process for the production of a multi-layer pipe to be used for formation of a bottle by draw-blow-forming, comprising forming by co-extrusion a pipe having inner and outer layers of a polyester composed mainly of ethylene terephthalate units and an intermediate layer of an oxygen-barrier resin interposed between the inner and outer layers, an adhesive resin layer is preferably interposed between every two adjacent layers. The co-extruded multi-layer pipe in the molten state so that the diameter of the pipe is sized is uniform. The process continues by cooling the outer portion of the molten multi-layer pipe by contact with water and simultaneously introducing an inert gas or an inert gas containing a water mist into the interior of the pipe to thereby cool the inner portion of the pipe and prevent oxidation in the pipe A. Multi-layer pipe prepared according to this process is excellent in the transparency and the draw-formability into a multi-layer drawn bottle.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOYO SEIKAN KAISHA, LTD.TOKYO527

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuo, Junichi Saitama, JP 38 182
Nohara, Shigezo Yokohama, JP 9 339
Ohkubo, Yoshimichi Tokyo, JP 4 114
Sakano, Kozaburo Yokohama, JP 16 368
Sugimoto, Takeshi Miyaki-gun, JP 41 423

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TOYO SEIKAN KAISHA, LTD. (3)
4,451,512 Multi-layer plastic vessel 33 1983
4,528,219 Multi-layer plastic laminate structure 60 1984
4,646,925 Multi-layer preform for draw-blow forming a bottle 81 1984
 
JARDEN CORPORATION (1)
4,436,778 Multilayer tubular body with uncentered barrier layer 29 1983
 
TOYO BOSEKI KABUSHIKI KAISHA (1)
4,398,642 Multi-ply vessel and method for production thereof 61 1981

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
THE CONCENTRATE MANUFACTURING COMPANY OF IRELAND (14)
6,391,408 Coated polyester preforms and method of making same 26 1998
6,352,426 Mold for injection molding multilayer preforms 27 1999
6,808,820 Multilayer containers and preforms having barrier properties utilizing recycled material 18 2001
6,939,591 Polyester laminate materials 14 2002
6,676,883 Methods for preparing coated polyester articles 26 2002
7,332,204 Coated polyester preforms and articles 7 2003
7,367,795 Injection mold having a wear resistant portion and a high heat transfer portion 2 2003
7,261,551 Preform molds incorporating high heat conductivity material 6 2004
7,531,226 Multilayer containers and preforms having barrier properties utilizing recycled material 7 2004
7,303,387 System for controlling mold temperatures 13 2005
7,717,697 Methods and systems for controlling mold temperatures 2 2006
7,645,135 Mold for injecting molding preforms 2 2007
7,578,668 Mold assembly having a pressure reducing device 3 2007
8,551,589 Mono and multi-layer articles and extrusion methods of making the same 0 2010
 
PLASTIPAK PACKAGING, INC. (12)
5,443,766 Method of making multi-layer preform used for plastic blow molding 43 1993
5,464,106 Multi-layer containers 51 1994
5,674,448 Multi-layer containers 7 1995
5,804,305 Multi-layer preform used for plastic blow molding 27 1995
5,651,933 Method for making multi-layer preform used for plastic blow molding 21 1995
5,645,183 Multi-layer containers 21 1995
5,906,285 Plastic blow molded container 22 1996
6,461,697 Polyethylene terephthalate multi-layer preform used for plastic blow molding 14 1996
5,927,525 Multi-layer containers and preforms 25 1997
6,090,337 Method for making multi-layer plastic preform for blow molding 4 1997
6,264,050 Container with improved neck portion and method for making the same 8 1998
6,319,574 Multi-layer plastic preform for blow molding 20 2000
 
PPG INDUSTRIES OHIO, INC. (9)
5,006,381 Ungelled polyamine-polyepoxide resins 25 1989
5,300,541 Polyamine-polyepoxide gas barrier coatings 33 1991
5,489,455 Container with polyamine-polyepoxide gas barrier coating 42 1993
5,438,109 Gas barrier coatings of polyepoxide/polyamine products 9 1993
5,491,204 Gas barrier coating from reacting polyamine, alkanolamine and polyepoxide 26 1995
5,573,819 Barrier coatings 37 1995
5,840,825 Gas barrier coating compositions containing platelet-type fillers 19 1996
5,728,439 Multilayer packaging material for oxygen sensitive food and beverage 34 1996
5,902,643 Multilayer packaging material having aminoepoxy gas barrier coating 8 1997
 
AMCOR RIGID PLASTICS USA, INC. (3)
7,651,781 Polypropylene container and process for making the same 2 2006
7,581,942 Stretch rod for a stretch blow molding machine 3 2008
8,158,052 Polypropylene container and process for making the same 0 2009
 
KURARAY CO., LTD. (3)
4,810,542 Multilayered tube for draw molding and multilayered container utilizing the tube 6 1988
4,929,482 Heat resistant container 26 1988
4,960,639 Multilayered container 63 1989
 
GRAHAM PACKAGING PET TECHNOLOGIES INC. (2)
5,301,838 Multilayer bottle with separable inner layer and method for forming same 33 1992
5,332,121 Squeezable multi-layer dispensing container with one-way valve 119 1992
 
OWENS-BROCKWAY PLASTIC PRODUCTS INC. (2)
6,083,450 Multilayer container package 76 1998
6,238,201 Multilayer container package molding apparatus 6 2000
 
PEPSICO, INC. (2)
5,759,654 Multiple layer preform 27 1995
7,588,808 Mono and multi-layer articles and injection molding methods of making the same 1 2005
 
AICELLO CORPORATION (1)
6,817,485 Container for photoresist liquid 0 2003
 
BALL CORPORATION (1)
6,677,013 Transparent multilayer polypropylene container with barrier protection 3 1999
 
BASF AKTIENGESELLSCHAFT (1)
5,498,390 Production of hollow articles from thermoplastics 2 1994
 
CAMELBAK PRODUCTS, LLC (1)
8,252,224 Methods of assembling multi-layered drink-containers 2 2009
 
CHOONGWAE CORPORATION (1)
8,349,440 High barrier multilayer film for functional medical solution product 0 2008
 
CONSOLIDATED CONTAINER COMPANY LP (1)
4,990,382 Plastic container with glass-like appearance, parison for and method of making same 18 1987
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
6,749,785 Multilayer structures of poly(1,3-propylene 2,6 napthalate) and poly (ethylene terephthalate) 11 2001
 
ELIZABETH AND SANDOR VALYI FOUNDATION, INC., THE (1)
6,077,578 Molded plastic food and beverage container and method 10 1997
 
KUREHA CORPORATION (1)
6,673,403 Gas-barrier, multi-layer hollow container 11 1999
 
MITSUBISHI GAS CHEMICAL COMPANY, INC. (1)
4,816,308 Multilayered container 65 1987
 
Plastic Fabrication Technologies LLC (1)
6,312,641 Method of making containers and preforms incorporating barrier materials 25 1997
 
Sharon Hutchinson (1)
7,717,057 Dip, spray, and flow coating process for forming coated articles 1 2007