Process for the extraction of contaminants from plastics

Details Process for the extraction of contaminants from plastics Process for the extraction of contaminants from plastics

1985-09-20

1987-07-14

Metz, Andrew H.

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 254, 134 30, 134 221, 134 2211, 134 2214, 134 40, 252160, 252170, B08B 3000

Patent

active

046800603

ABSTRACT:
A process for the extraction of contaminants from plastics is disclosed. A plastic surface is contacted with an alcohol to extract any contaminants which have been absorbed by or adsorbed on the plastic surface. Thereafter, the plastic surface is rinsed with water to remove any remaining alcohol. The process has particular applicability in cleaning plastic bottles and plastic post-mix beverage dispensing lines.

REFERENCES:
patent: 3969134 (1976-07-01), Batka et al.
patent: 4157921 (1979-06-01), Baturay et al.
patent: 4172044 (1979-10-01), Zeidler et al.
patent: 4434069 (1984-02-01), Fairchild
patent: 4592787 (1986-06-01), Johnson
Chemical Abstract, 104:226756d (1986).
Chemical Abstract 103:106659e (1985).
Chemical Abstract 93:152048e (1978).
Chemical Abstract 89:165337r (1976).

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