Composite plastics film or sheet

Details Composite plastics film or sheet Composite plastics film or sheet

1998-03-02

2000-03-21

Krynski, William

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283044, 4283155, 4283159, 524274, B32B 514

Patent

active

060400420

ABSTRACT:
This invention relates to a formulation for making a composite plastics film or sheet comprising a polyolefin, a filler and a voiding agent, characterised in that the voiding agent is a pentaerythritol ester of maleic rosin. This is particularly suitable for use on the printable surfaces of synthetic paper. A feature of this rosin is that it minimises the yellowing of the paper.

REFERENCES:
patent: 3635746 (1972-01-01), Karlan
patent: 3981851 (1976-09-01), Plueddnmann
patent: 4555436 (1985-11-01), Geurtsen et al.
patent: 4657706 (1987-04-01), Durkee
patent: 4960637 (1990-10-01), Biczenczuk
patent: 5032449 (1991-07-01), Strom

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