Making a thin (>30pm) polypropylene coating by applying small

Details Making a thin (>30pm) polypropylene coating by applying small Making a thin (>30pm) polypropylene coating by applying small

1989-12-22

1991-12-24

Beck, Shrive

Coating processes

With stretching or tensioning

Running lengths

427375, 4273855, 4273983, B05D 302

Patent

active

050751360

ABSTRACT:
A process for the application of a thin crystalline polypropylene coating to a surface which employs partially crystalline polypropylene particles which comprise zones of amorphous polypropylene containing entrapped moderate solvent. When heated particles flow and coalesce better than conventional polypropylene particles and so allow thinner coatings to be obtained. Also articles to which the coatings have been applied.

REFERENCES:
patent: 3135622 (1964-06-01), Ranolli
patent: 3664981 (1972-05-01), Mahlman
patent: 3971749 (1976-07-01), Blunt
patent: 4156672 (1979-05-01), Fitko et al.
Cowie, J. M. G., "Polymers: Chemistry and Physics of Modern Materials", pp. 194-198, 1973.

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