Powder composition and method of preparation

Details Powder composition and method of preparation Powder composition and method of preparation

1978-12-05

1980-05-06

Ziegler, J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

215 12R, 215DIG6, 260 457R, 260 4585R, 427195, 427387, 4273744, 4273897, 428 85, 525 95, B32B 516

Patent

active

042018340

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 transistion 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 et al.

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