Method for sealing cavities

Details Method for sealing cavities Method for sealing cavities

1984-11-29

1986-10-21

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 465, 264 467, 2642711, 26427214, 264338, B29C 3910, B29C 6722, C08G 1814

Patent

active

046184678

ABSTRACT:
A method of sealing cavities open on one side, preferably cavities of electrical equipment housings fitted with various components. A measured quantity of an encapsulant, preferably polyurethane foam, is inserted into the cavity. Thereafter the opening is covered by a permeable, absorbent fabric, preferably of polypropylene, which is covered first by an elastic and then a rigid layer. After hardening, the fabric is removed from the surface of the encapsulant.

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patent: 4264544 (1981-04-01), Wilheim
Reichhold (RCI) Application Bulletin, "Polyite Polyurethane Resin: Production & Trouble Shooting Guide for Molded Rigid Polyurethane Foam Furniture Components", White Plains, N.Y., Reichhold Chemicals , Inc. (1/70), 8 pages.

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