US Patent No: 4,820,589

Number of patents in Portfolio can not be more than 2000

Cling/no cling-slip stretch wrap film

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Importance

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Abstract

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A stretch wrap film having one-sided cling of a thermoplastic A/B layer film structure wherein layer A in its stretched condition has a comparatively high cling force to layer B and layer B has at least substantially no cling force to a layer of itself and has a slide property when layer B is in contact with a layer of itself with relative motion therebetween and the surface of layer B presents sufficient area of an organic polymer which of its very nature causes the no cling force and the slide property.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COVALENCE SPECIALTY MATERIALS CORP.EVANSVILLE, IN24
TENNECO PACKAGING INC.EVANSTON, IL114

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dobreski, David V Fairport, NY 53 1306
Metz, Robert J Pittsburgh, PA 4 95
Morris, James Hollywood, FL 39 200

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TYCO PLASTICS SERVICES AG (2)
4,399,180 Coextruded thermoplastic stretch-wrap 106 1982
4,518,654 One-sided cling stretch wrap 82 1983
 
FIRST BRANDS CORPORATION (1)
4,367,256 Cling-wrap polyethylene film 79 1981
 
MITSUI PETROCHEMICAL INDUSTRIES, LTD. (1)
4,205,021 Ethylene copolymers 147 1978
 
Mobil Oil Corporation (1)
4,348,455 Thermoplastic food wrapping film having improved cling 20 1981
 
SWIFT INDEPENDENT PACKING COMPANY (1)
4,234,647 Meat packaging of foam and oxygen impervious material 12 1978

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
The Procter & Gamble Company (12)
6,194,062 Storage wrap material 25 1996
5,965,235 Three-dimensional, amorphous-patterned, nesting-resistant sheet materials and method and apparatus for making same 72 1996
6,421,052 Method of seaming and expanding amorphous patterns 23 1999
6,193,918 High speed embossing and adhesive printing process and apparatus 45 1999
6,148,496 Method for making a seamless apertured metal belt 5 1999
6,254,965 Three-dimensional nesting-resistant sheet materials and method and apparatus for making 17 1999
6,602,454 High speed embossing and adhesive printing process and apparatus 8 2001
6,881,471 High speed embossing and adhesive printing process and apparatus 4 2001
6,818,292 Storage wrap material 3 2001
6,773,647 High speed embossing and adhesive printing process and apparatus 11 2002
6,727,003 Coating material comprising linear isotactic polymers 2 2002
6,872,342 Embossing and adhesive printing process 5 2002
 
The Dow Chemical Company (8)
5,395,471 High drawdown extrusion process with greater resistance to draw resonance 61 1993
5,582,923 Extrusion compositions having high drawdown and substantially reduced neck-in 55 1994
5,674,342 High drawdown extrusion composition and process 24 1995
5,792,534 Polyolefin film exhibiting heat resistivity, low hexane extractives and controlled modulus 16 1995
5,773,106 Polyolefin compositions exhibiting heat resistivity, low hexane-extractives and controlled modulus 20 1995
6,136,937 Elastic substantially linear ethylene polymers 48 1997
5,747,594 Polyolefin compositions exhibiting heat resistivity, low hexane-extractives and controlled modulus 30 1997
5,986,028 Elastic substantially linear ethlene polymers 35 1997
 
CRYOVAC, INC. (7)
5,158,836 Oriented film of high clarity and gloss 18 1991
5,219,666 Oriented film of high clarity and gloss 18 1992
5,298,202 Double bubble process for making strong, thin film 13 1992
5,389,448 Blends of polypropylene and ethylene copolymer and films made from the blend 37 1993
5,456,979 Biaxially oriented film 13 1993
5,674,607 Double bubble process for making strong, thin films 1 1995
5,674,608 Double bubble process for making strong, thin film 1 1995
 
DOW GLOBAL TECHNOLOGIES INC. (6)
6,534,612 Elastic substantially linear ethylene polymers 7 1999
6,506,867 Elastic substantially linear ethylene polymers 4 2000
6,548,611 Elastic substantially linear olefin polymers 4 2001
6,737,484 Elastic substantially linear olefin polymers 0 2002
6,780,954 Elastic substantially linear ethylene polymers 1 2003
6,849,704 Elastic substantially linear olefin polymers 0 2003
 
Minnesota Mining and Manufacturing Company (4)
5,733,652 Banding system, banding tape and methods of using the same 30 1995
5,888,335 Multiple releasable contact responsive fasteners 24 1996
6,004,670 Multiple releasable contact responsive fasteners 20 1997
5,908,695 Multiple releasable contact responsive fastener 4 1997
 
TENNECO PACKAGING INC. (3)
5,261,536 Multi-layer coextruded polyolefin stretch wrap films 14 1992
5,334,428 Multilayer coextruded linear low density polyethylene stretch wrap films 55 1992
5,431,284 Multi-layer coextruded polyolefin stretch wrapped plurality of goods 35 1993
 
BERRY PLASTICS CORPORATION (2)
4,996,094 One-sided cling/one-sided slip stretch wrap films 51 1988
5,432,231 Recycling stretch wrap film 1 1993
 
BP CHEMICALS LIMITED (2)
6,025,448 Gas phase polymerization of olefins 72 1996
6,538,080 Gas phase polymerization of olefins 5 2000
 
PARAGON FILMS, INC. (2)
5,093,188 Single-sided cling stretch film 14 1990
5,208,096 Single-sided cling stretch film 34 1991
 
AVERY DENNISON CORPORATION (1)
6,541,098 Three-dimensional flexible adhesive film structures 21 2000
 
ELF ATOCHEM S.A. (1)
5,846,661 Film for the treatment of soils by fumigation 6 1996
 
ILLINOIS TOOL WORKS INC. (1)
6,942,909 Wrapping films with mating cling strips 16 2003