In-line mixing apparatus, process for mixing reactive...

Details In-line mixing apparatus, process for mixing reactive... In-line mixing apparatus, process for mixing reactive...

2005-07-05

2005-07-05

Sorkin, David (Department: 1723)

Agitating

Having specified feed means

Liquid injector within mixing chamber

C366S174100, C366S181500, C366S331000, C422S223000, C264S004700

Reexamination Certificate

active

06913381

ABSTRACT:
An oil phase solution injected into a mixing flow path from an upstream injection inlet forms a flow from an upstream injection inlet to a discharge outlet, and a rotary blade is provided downstream of a mechanical seal. Thus, a reverse flow toward a mechanical seal of a polyvalent isocyanate and a polyol injected from an inlet downstream with respect to the mechanical seal tends not to take place. A separating film member is provided to prevent the chemical solutions flowing in the mixing flow path from coming into contact with a pressing means, which is for pressing a seal ring member of the mechanical seal against a rotation ring member. A reaction product is not adhered to the pressing means of the mechanical seal, which would decrease the pressing force, and leakage of the liquid from the mechanical seal can be effectively prevented.

REFERENCES:
patent: 4668580 (1987-05-01), Dahm et al.
patent: 5401443 (1995-03-01), Nagano et al.
patent: 5665796 (1997-09-01), Hosokawa et al.
patent: 5785423 (1998-07-01), Chikami
patent: 6443611 (2002-09-01), Hasberg et al.
patent: 0 535 384 (1993-04-01), None
Japanese Abstract No. 2000218153, dated Aug. 8, 2000.
Japanese Abstract No. 59166231, dated Sep. 19, 1984.
Japanese Abstract No. 56108529, dated Aug. 28, 1981.

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