Composite plastics film or sheet

Details Composite plastics film or sheet Composite plastics film or sheet

1997-02-24

2000-02-15

Thibodeau, Paul

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428515, 428516, 4283084, 4283157, 4283177, 4283179, 4283184, 4283193, 4283199, 427533, 427535, 26417312, 26417315, 26417314, 26417319, 2642902, B32B 2732, B32B 522

Patent

active

060250585

ABSTRACT:
This invention relates to a co-extruded film or sheet comprising a base layer and at least one surface layer, characterised in that the base layer comprises a polyolefin and has a thickness greater than about 10 .mu.m, and the surface layer comprises a polyolefin and a silica filler and has a thickness less than about 5 .mu.m. The surface layer contains from 10 to 60% w/w of silica based on the polyolefin content of said surface layer. Films and sheets of this type have superior absorbent properties for imprinting media such as eg ink.

REFERENCES:
patent: 3783088 (1974-01-01), Yoshiyasu et al.
patent: 4067938 (1978-01-01), Jack
patent: 4472227 (1984-09-01), Toyoda et al.
patent: 4567089 (1986-01-01), Hattori et al.
patent: 4960637 (1990-10-01), Biczenczuk
patent: 5326391 (1994-07-01), Anderson et al.
patent: 5393603 (1995-02-01), Toyoda et al.

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