Heat-shrinkable film having high shrinkage upon brief exposure t

Details Heat-shrinkable film having high shrinkage upon brief exposure t Heat-shrinkable film having high shrinkage upon brief exposure t

1991-06-27

1992-07-07

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624424, 525 57, 525 60, B32B 3116, B29C 4706

Patent

active

051279770

ABSTRACT:
Disposable diapers can be manufactured at high production speeds by using for the waistband a heat-shrinkable plastic film that is dimensionally stable at ordinary room temperatures and shrinks in one direction at least 25% within 5 seconds at 54.degree. C. Such a heat-shrinkable plastic film can be made by uniaxially cold-stretching a thin extrudate of a blend of an EVA copolymer and an (A-B) block copolymer of polystyrene and polyisoprene.

REFERENCES:
patent: 4816094 (1989-03-01), Pomplun
patent: 5034078 (1991-07-01), Hodgson et al.

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