Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1991-04-16
1992-12-08
Sluby, P. C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428349, 428447, 428448, 428516, 428910, 524310, B32B 2732, C08K 510
Patent
active
051697149
ABSTRACT:
A heat-shrinkable polypropylene film adapted to be printed with, particularly, a flexographic ink is disclosed, which comprises a single layer heat-shrinkable film of a polypropylene resin composition containing spherical silicone resin fine particles of 0.2 to 5 microns in average particle size in a content of 0.1 to 0.7% by weight or a multi-layer heat-shrinkable film wherein at least one of the surface layers is such a polypropylene resin composition, with at least one surface of the single layer film or one surface of the surface layer of the multi-layer film having been subjected to corona discharge treatment to such degree that wettability index of the treated surface becomes 36 to 42 dyn/cm.
REFERENCES:
patent: 4439478 (1984-03-01), Ferguson et al.
patent: 4725466 (1988-02-01), Crass et al.
patent: 4966953 (1990-10-01), Kawakami et al.
Ishiguro Nobuya
Kondo Kazuo
Tada Teruo
Wano Toyoki
Yoshida Teruaki
Okura Industrial Co., Ltd.
Sluby P. C.
Sumitomo Chemical Company Ltd.
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