Films produced from LDPE encapsulated CaCO.sub.3

Details Films produced from LDPE encapsulated CaCO.sub.3 Films produced from LDPE encapsulated CaCO.sub.3

1978-12-26

1981-05-05

Person, Sandra M.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

260 4214, 260 4246, 428144, 428330, B32B 2732

Patent

active

042659604

ABSTRACT:
Fine particle size CaCO.sub.3 is encapsulated with low density polyethylene (LDPE) in a fluid energy mill. Very thin extrusion oriented films (as low as 0.4 mil.) were made using the LDPE encapsulated CaCO.sub.3 at high concentrations of 32-61%. Such films are soft and have a dry "feel" and translucent appearance with slip and anti-block properties. They can be heat sealed, printed, and folded. The films can be used as paper and paper tissue substitutes.

REFERENCES:
patent: 3758661 (1973-09-01), Yamamota et al.
patent: 3844865 (1974-10-01), Elton et al.
patent: 3876735 (1975-04-01), Bontinck et al.
patent: 3992558 (1976-11-01), Smith-Johnson et al.

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