THERMOSET MOLDING LINE FOR MANUFACTURE OF MULTILAYER FACE COMPONENTS OF EXPENDABLE PROTECTIVE MASKS Russian patent published in 1994 - IPC

Abstract RU 2021139 C1

FIELD: chemical engineering; methods of mating polymer materials. SUBSTANCE: thermoset molding line used for manufacture of multilayer face components of expendable protective masks incorporates stock feeding unit including device for preliminarily mechanically unloading face and reverse side materials. Each of these devices is made in the form of striking notcher. Stock feeding unit is provided with device for preliminarily thermally relieving spacer material, which is actually cryostatic unit including dehumidifier. Thermocyclic system has thermal-relieving unit made in the form of convector and disposed downstream of molding unit. EFFECT: greater adhesion. 3 dwg

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RU 2 021 139 C1

Authors

Al'Tshuler E.B.

Levinson V.G.

Ruchkov V.E.

Shkrabo M.L.

Kudrjavtseva L.Ju.

Dates

1994-10-15Published

1992-01-16Filed