Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1979-05-23
1981-07-07
Dixon, Jr., William R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
2642896, 264514, 264564, 428 36, 428523, 428910, C08F11002, B29D 904, B29D 724
Patent
active
042775949
ABSTRACT:
Described is a mildly biaxially oriented, blown polyethylene film characterized by a cross directional (CD) shrink force in the range of about 60 to 300 psi, an average heat seal energy of at least about 2.0 in - lbs., an average internal tear resistance of at least about 30 gms/ply, and a minimum shrink temperature no higher than 220.degree. F. and which is less than crystalline melt point (or points) of polyethylene material. This film also has a shrink force in the machine direction (MD) which is typically in the range of about 200 to 300 psi.
Also described is the process by which this film is produced.
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Knox, III Walter H.
Loredo Tomas A.
Matthews Stephen B.
Simmons Herman F.
Dixon Jr. William R.
Reynolds Metals Company
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