Process for the manufacture of an interposed support of semiperm

Details Process for the manufacture of an interposed support of semiperm Process for the manufacture of an interposed support of semiperm

1986-04-10

1987-10-20

Czaja, Donald E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156246, 156248, 156256, 156298, 428193, B44C 116, B32B 3100, B32B 2302

Patent

active

047012340

ABSTRACT:
The process of the invention concerns the manufacture of an interposed support of semipermeable microfiltration membranes, the support composed of a permeable mesh and a sealed border of elastomeric material. After deposition of an elastomeric film on a transfer support 2, the assembly which is obtained is cut into one or more elements 3 reconstituting the border; this or these elements 3 are applied on the mesh with their support(s) 2 and the elastomer is turned toward the mesh; then the mesh thus equipped is treated with pressure at a temperature of between 100.degree. and 150.degree. C. to cause the elastomer to penetrate into the mesh and to obtain a smooth border surface on each side of this mesh, allowing for a sealed joint. The product which is obtained is applied to the manufacture of microfiltration units, whether it has to do with ultrafiltration, with gas permeation or with hemodialysis.

REFERENCES:
patent: 2663905 (1953-12-01), Van Riper et al.
patent: 3537948 (1970-11-01), Marzocchi
patent: 3619323 (1971-11-01), Stebleton
patent: 3679059 (1972-07-01), Wyatt et al.
patent: 3987592 (1976-10-01), Herminghaus et al.
patent: 4082071 (1978-04-01), Jones
patent: 4227953 (1980-10-01), Wasielewski
patent: 4264447 (1981-04-01), Nicolet
patent: 4360433 (1982-11-01), Walker et al.

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