US Patent No: 6,676,883
Number of patents in Portfolio can not be more than 2000
Methods for preparing coated polyester articles
Stats
-
Jan 13, 2004
Issued date -
May 20, 2002
filing date -
10/152,318
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
This invention relates to articles made of polyester, preferably polyethylene terephthalate (PET), having coated directly to at least one of the surfaces thereof one or more layers of thermoplastic material with good gas-barrier characteristics, and novel methods of making such articles. Preferably the barrier-coated articles take the form of preforms coated by at least one layer of barrier material and the containers blow-molded therefrom. Such barrier-coated containers are preferably of the type to hold beverages such as soft drinks, beer or juice. The preferred barrier materials have a lower permeability to oxygen and carbon dioxide than PET as well as key physical properties similar to PET. The materials and methods provide that the barrier layers have good adherence to PET, even during and after the blow molding process to form containers from preforms. Preferred barrier coating materials include poly(hydroxyamino ethers). In one preferred method, preforms are injection molded then barrier-coated immediately thereafter.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,438,254 Process for producing epoxy resins | 54 | 1983 | |
| 4,647,648 Polyhydroxyethers from hydroxybiphenyls | 33 | 1985 | |
| 5,115,075 Amide and hydroxymethyl functionalized polyethers as thermoplastic barrier resins | 33 | 1990 | |
| 5,094,793 Methods and apparatus for generating interfacial surfaces | 130 | 1990 | |
| 5,089,588 Hydroxy-functional poly(amide ethers) as thermoplastic barrier resins | 28 | 1991 | |
| 5,202,074 Method for producing injection molded multilayer articles | 89 | 1991 | |
| 5,134,218 Hydroxy-functional poly(amide ethers) as thermoplastic barrier resins | 27 | 1991 | |
| 5,149,768 Hydroxy-functional poly(ether sulfonamides) as thermoplastic barrier resins | 25 | 1991 | |
| 5,143,998 Hydroxy-functional poly(amide ethers) as thermoplastic barrier resins | 27 | 1991 | |
| 5,275,853 Hydroxyl functionalized polyetheramines as barrier packaging for oxygen-sensitive materials | 63 | 1992 | |
| 5,246,751 Poly(hydroxy ether imides) as barrier packaging materials | 24 | 1992 | |
| 5,540,878 Method for producing blow molded multilayer plastic articles | 18 | 1994 | |
| 5,628,950 Method and apparatus for producing multilayer plastic articles | 47 | 1994 | |
| 5,731,094 Hydroxy-phenoxyether polyester coextruded laminates | 19 | 1996 | |
| 5,834,078 Hydroxy-functionalized poly(amino ether) salts | 27 | 1997 | |
| 6,051,294 Heat-resistant hydroxy-functional polyethers as thermoplastic barrier resins | 16 | 1998 | |
| 6,180,715 Aqueous solution and dispersion of an acid salt of a polyetheramine | 29 | 1999 | |
|
|
|||
| 4,573,596 Plastic container with vapor barrier | 26 | 1985 | |
| 5,443,766 Method of making multi-layer preform used for plastic blow molding | 42 | 1993 | |
| 5,464,106 Multi-layer containers | 49 | 1994 | |
| 5,688,572 Multi-layer containers | 19 | 1995 | |
| 5,651,933 Method for making multi-layer preform used for plastic blow molding | 20 | 1995 | |
| 5,804,305 Multi-layer preform used for plastic blow molding | 26 | 1995 | |
| 5,676,267 Multi-layer containers | 72 | 1995 | |
| 5,645,183 Multi-layer containers | 20 | 1995 | |
| 5,906,285 Plastic blow molded container | 20 | 1996 | |
| 5,772,056 Plastic blow molded container | 26 | 1996 | |
| 6,461,697 Polyethylene terephthalate multi-layer preform used for plastic blow molding | 13 | 1996 | |
| 5,927,525 Multi-layer containers and preforms | 22 | 1997 | |
| 6,524,672 Multilayer preform and container with co-extruded liner | 14 | 1999 | |
| 6,319,574 Multi-layer plastic preform for blow molding | 19 | 2000 | |
|
|
|||
| 4,755,404 Refillable polyester beverage bottle and preform for forming same | 85 | 1987 | |
| 4,847,129 Multilayer preform for hot fill containers | 29 | 1988 | |
| 5,077,111 Recyclable multilayer plastic preform and container blown therefrom | 34 | 1990 | |
| 5,509,965 Preform coating apparatus and method | 44 | 1993 | |
| 5,628,957 Method of forming multilayer container with polyethylene naphthalalte (pen) | 41 | 1994 | |
| 5,759,653 Oxygen scavenging composition for multilayer preform and container | 75 | 1994 | |
| 5,582,788 Method of cooling multilayer preforms | 48 | 1994 | |
| 5,989,661 Pressurized refill container resistant to sprue cracking | 45 | 1996 | |
| 5,759,656 Method of forming multilayer preform and container with low crystallizing interior layer | 23 | 1997 | |
| 6,428,737 Sleeve molding | 16 | 1998 | |
| 6,090,460 Method of forming multi-layer preform and container with low crystallizing interior layer | 16 | 1998 | |
| 6,372,318 Method of forming container with high-crystallinity sidewall and low-crystallinity base | 32 | 1998 | |
|
|
|||
| 5,006,381 Ungelled polyamine-polyepoxide resins | 24 | 1989 | |
| 5,300,541 Polyamine-polyepoxide gas barrier coatings | 31 | 1991 | |
| 5,652,034 Barrier properties for polymeric containers | 43 | 1991 | |
| 5,300,326 Method of coating a plastic substrate with an aqueous coating composition for plastic substrates | 21 | 1993 | |
| 5,489,455 Container with polyamine-polyepoxide gas barrier coating | 41 | 1993 | |
| 5,491,204 Gas barrier coating from reacting polyamine, alkanolamine and polyepoxide | 25 | 1995 | |
| 5,639,848 Ungelled polyamine-polyepoxide resins | 14 | 1996 | |
| 5,728,439 Multilayer packaging material for oxygen sensitive food and beverage | 33 | 1996 | |
|
|
|||
| 4,646,925 Multi-layer preform for draw-blow forming a bottle | 76 | 1984 | |
| 4,699,809 Process for preparation of coated oriented plastic container | 39 | 1986 | |
| 4,741,936 Laminate preform for a multi-layer polyester bottle | 58 | 1986 | |
| 4,818,575 Biaxially drawn polyester vessel having resistance to heat distortion and gas barrier properties and process for preparation thereof | 109 | 1987 | |
| 5,085,821 Preparation of multi-layer drawn polyester bottles | 25 | 1988 | |
|
|
|||
| 5,472,753 Polyethylene terephthalate-containing laminate | 27 | 1994 | |
| 5,759,654 Multiple layer preform | 26 | 1995 | |
| 5,780,128 Polyethylene preform and container | 15 | 1996 | |
|
|
|||
| 5,837,339 Rigid polymeric beverage bottles with improved resistance to permeant elution | 30 | 1997 | |
| 6,136,354 Rigid polymeric beverage bottles with improved resistance to permeant elution | 26 | 1998 | |
|
|
|||
| 4,515,836 Process for coating substrates with aqueous polymer dispersions | 58 | 1983 | |
| 4,538,542 System for spray coating substrates | 57 | 1984 | |
|
|
|||
| 4,578,295 High barrier polymer blend and articles prepared therefrom | 99 | 1984 | |
| 4,715,504 Oriented plastic container | 45 | 1986 | |
|
|
|||
| 5,571,470 Method for fabricating a thin inner barrier layer within a preform | 20 | 1994 | |
| 5,906,787 Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform | 13 | 1996 | |
|
|
|||
| 6,391,408 Coated polyester preforms and method of making same | 23 | 1998 | |
| 6,352,426 Mold for injection molding multilayer preforms | 23 | 1999 | |
|
|
|||
| 4,980,211 Article of polyethylene terephthalate resin | 68 | 1980 | |
| 4,569,869 Saturated polyester bottle-shaped container with hard coating and method of fabricating the same | 56 | 1981 | |
|
|
|||
| 2002/0028,870 Layered clay intercalates and exfoliates having a low quartz content | 15 | 2001 | |
|
|
|||
| 4,830,811 Process for molding double-layered preforms in an injection, stretching and blow molding machine | 27 | 1987 | |
|
|
|||
| 6,123,211 Multilayer plastic container and method of making the same | 93 | 1997 | |
|
|
|||
| 5,968,620 Blood collection tube assembly | 35 | 1997 | |
|
|
|||
| 4,540,543 Injection blow molding process and apparatus | 24 | 1984 | |
|
|
|||
| 4,604,258 Stack-mold for injection blow molding | 26 | 1984 | |
|
|
|||
| 5,688,570 Method and apparatus for forming a multi-layer preform | 25 | 1995 | |
|
|
|||
| RE34537 Plastic composite barrier structures | 26 | 1992 | |
|
|
|||
| 4,560,741 Polyester resins capable of forming containers having improved gas barrier properties | 35 | 1985 | |
|
|
|||
| 5,894,023 Apparatus for injection-molding three-layer moldings | 22 | 1996 | |
|
|
|||
| 4,564,541 Plastic laminate structure and vessel | 41 | 1984 | |
|
|
|||
| 4,604,044 Injection blow molding apparatus | 45 | 1984 | |
|
|
|||
| 6,168,740 Partial crystallization method of amorphous plastic articles | 28 | 1998 | |
|
|
|||
| 5,914,138 Apparatus for throttle-valving control for the co-extrusion of plastic materials as interior core streams encased by outer and inner streams for molding and the like | 29 | 1996 | |
|
|
|||
| 5,302,417 Aqueous dispersion and substrate coated with the same | 21 | 1993 | |
|
|
|||
| 5,188,787 Process for the injection moulding of multi-layered articles | 52 | 1992 | |
|
|
|||
| 5,599,494 Method of forming a parison having multiple resin layers | 20 | 1994 | |
|
|
|||
| 4,867,664 Extrusion molding equipment for multi-layer parison | 30 | 1988 | |
|
|
|||
| 5,972,445 Multilayer polyester sheet | 34 | 1998 | |
|
|
|||
| 4,940,616 Multilayered container and method for making | 22 | 1988 | |
|
|
|||
| 4,323,341 Apparatus for forming hollow plastic objects | 19 | 1980 | |
|
|
|||
| 4,480,082 Epoxy resin fortifiers based on aromatic amides | 44 | 1983 | |
|
|
|||
| 6,312,641 Method of making containers and preforms incorporating barrier materials | 20 | 1997 | |
|
|
|||
| 4,587,073 Method of manufacture of a multilayer container of plastic material | 22 | 1984 | |
|
|
|||
| 4,615,925 Barrier-coated tube of biaxially stretched thermoplastic material having a monoaxially stretched barrier coating thereon | 25 | 1983 | |
|
|
|||
| 5,354,532 Methods for molding composite polyester articles having rigid and flexible regions | 32 | 1991 | |
|
|
|||
| 4,871,410 Method of extruding and blow molding of gas-impermeable composite articles having water-resistant polyvinyl alcohol film layer | 24 | 1987 | |
|
|
|||
| 4,937,130 Polycarbonate container having internal layers of amorphous polyamide | 22 | 1989 | |
|
|
|||
| 5,551,858 Apparatus for forming synthetic resins | 20 | 1994 | |
|
|
|||
| 4,357,296 Injection blow molding process | 34 | 1981 | |
|
|
|||
| 4,403,090 Polyisophthalates and copolymers thereof having high barrier properties | 43 | 1982 | |
|
|
|||
| 4,956,143 Method and apparatus for the multi-unit production of thin-walled tubular products utilizing an injection molding technique | 25 | 1988 | |
|
|
|||
| 4,213,751 Valve gate mechanism for injection molding | 34 | 1978 | |
|
|
|||
| 5,443,378 Apparatus for the sandwich method of injection molding | 31 | 1994 | |
|
|
|||
| 6,068,900 Plastic container having a high resistance to chemical attack and method of making same | 20 | 1998 | |
|
|
|||
| 5,508,076 Layered preform | 25 | 1994 | |
|
|
|||
| 4,378,963 Injection mechanism for molding plastics | 41 | 1980 | |
| 4,375,947 Injection molding system | 19 | 1982 | |
| 4,376,090 Injection molding system | 30 | 1982 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 13, 2015 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |