Process for cleaning parts soiled or encrusted with polyester re

Details Process for cleaning parts soiled or encrusted with polyester re Process for cleaning parts soiled or encrusted with polyester re

1995-01-13

1996-12-10

Warden, Jill

Cleaning and liquid contact with solids

Processes

Including application of electrical radiant or wave energy...

134 6, 134 2214, 134 2219, 134 29, 134 38, 252540, 510245, 510272, B08B 312, C11D 3065

Patent

active

055826504

ABSTRACT:
A process using primarily aqueous-based surfactants for cleaning machinery, tools, containers and the like to remove polyester resin residue. This process involves four stages, each having one or more steps. The first stage is a pre-wash or preliminary cleaning stage which is followed by an ultra-sonic wash stage. The third stage is a rinse stage and the fourth and last stage is for drying the parts cleaned during the previous three stages of the process. Additionally, a fifth evaporation/drying stage is periodically carried out to remove polyester resin residues from the process as solid waste.

REFERENCES:
patent: 3762952 (1973-10-01), Gouin et al.
patent: 3865628 (1975-02-01), Callahan et al.
patent: 4537705 (1985-08-01), Mahoney et al.
patent: 4591391 (1986-05-01), Shimizu et al.
patent: 4838948 (1989-06-01), Bailey
patent: 5064557 (1991-11-01), Fusiak
patent: 5259993 (1993-11-01), Short

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