Heat shrinkable polyethylene film and method for its manufacture

Details Heat shrinkable polyethylene film and method for its manufacture Heat shrinkable polyethylene film and method for its manufacture

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.

REFERENCES:
patent: 2034716 (1936-03-01), Dreyfus
patent: 2334022 (1943-11-01), Minch
patent: 2412187 (1946-12-01), Wiley et al.
patent: 2582165 (1952-01-01), Rosenfeld
patent: 2597877 (1952-09-01), LeClair
patent: 2618012 (1952-11-01), Milne
patent: 3022543 (1962-02-01), Baird, Jr. et al.
patent: 3076232 (1963-02-01), Dengler
patent: 3091807 (1963-06-01), Turner et al.
patent: 3137746 (1964-06-01), Seymour et al.
patent: 3144399 (1964-08-01), Rainer et al.
patent: 3177277 (1965-04-01), Adams et al.
patent: 3231642 (1966-01-01), Goldman et al.
patent: 3248463 (1966-04-01), Wiley et al.
patent: 3248753 (1966-05-01), Kobayashi et al.
patent: 3261903 (1966-07-01), Carr
patent: 3296351 (1967-01-01), Rasmussen
patent: 3299194 (1967-01-01), Golike
patent: 3307218 (1967-03-01), Reifenhauser
patent: 3361861 (1968-01-01), Bertinotti et al.
patent: 3383445 (1968-05-01), Gebler et al.
patent: 3445886 (1969-05-01), LeMoine et al.
patent: 3465072 (1969-09-01), Gregorian
patent: 3471606 (1969-10-01), Corbett et al.
patent: 3494993 (1970-02-01), Breidt, Jr. et al.
patent: 3548042 (1970-12-01), Hinrichs
patent: 3568252 (1971-03-01), Masuda et al.
patent: 3577497 (1971-05-01), Matsugu et al.
patent: 3634553 (1972-01-01), Foglia et al.
patent: 3659000 (1972-04-01), Cronk
patent: 3676539 (1972-07-01), Fisher
patent: 3723583 (1973-03-01), Hovermale et al.
patent: 3891737 (1975-06-01), Marsh et al.
patent: 3944644 (1976-03-01), VanCappellen et al.
patent: 3981149 (1976-09-01), Rice

Affiliated with

Also associated with

Rating

Heat shrinkable polyethylene film and method for its manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat shrinkable polyethylene film and method for its manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat shrinkable polyethylene film and method for its manufacture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-194569