Method of powder coating a glass container and product produced

Details Method of powder coating a glass container and product produced Method of powder coating a glass container and product produced

1979-09-27

1981-04-07

Beck, Shrive P.

Bottles and jars

Multilayer barrier structure

Coating or lamination

215DIG6, 427195, 428 35, 428407, 428429, 428441, 428447, 428517, 428521, B65D 1116, B05D 302, B05D 136

Patent

active

042600669

ABSTRACT:
A non-tacky powder composition useful for coating applications is disclosed. A method of preparing the non-tacky powder composition is also disclosed. This powder composition comprises tacky powder particles and, adhering to the tacky surface of these tacky powder particles in a non-continuous layer, smaller solid particles which are hard and non-tacky. The tacky powder particles comprise a melt blend mixture of a thermoplastic elastomer and a specifically defined melt flow modifier. The smaller solid particles which are hard and non-tacky comprise a specifically defined melt flow modifier which has a glass transition temperature greater than about 20.degree. C. The final powder composition is non-tacky and is particularly useful in coating glass containers. A process for coating substrates such as a glass container with this composition, as well as the coated glass container, is also disclosed.

REFERENCES:
patent: 3646161 (1972-02-01), Marwede et al.
patent: 3682768 (1972-08-01), Adams et al.
patent: 3686365 (1972-08-01), Sequeira
patent: 3737401 (1973-06-01), Tsou et al.
patent: 3823032 (1974-07-01), Ukai
patent: 3932332 (1976-01-01), Douglas et al.
patent: 3970771 (1976-07-01), Davison
patent: 3985702 (1976-10-01), Himes
patent: 4027067 (1977-05-01), Wagner

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