Low-temperature heat-shrinkable film

Details Low-temperature heat-shrinkable film Low-temperature heat-shrinkable film

1989-07-12

1991-09-24

Seccuro, Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5263481, C08J 518, C08L 2318, C08L 2316, C08L 2308

Patent

active

050514814

ABSTRACT:
A low-temperature heat-shrinkable film having a haze value not larger than 8%, a heat shrinkability in the machine direction at a temperature of 90.degree. C. of at least 30%, and a shrinkage stress of at least 300 g/mm.sup.2, is made from a composition comprising (a) a linear ethylene polymer containing short-chain branches and having a density not larger than 0.940 g/cm.sup.2 and (b) an ethylene/propylene random copolymer containing 3.5 to 10% by weigh of units derived from ethylene, wherein the proportion of the ethylene/propylene random copolymer in the composition is 15 to 50% by weight.

REFERENCES:
patent: 4352849 (1982-10-01), Mueller
patent: 4536549 (1985-08-01), Hattori et al.

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