PROCESS FOR MANUFACTURING POROMERIC MATERIAL Russian patent published in 1994 - IPC

Abstract RU 2005748 C1

FIELD: synthetic leather finish. SUBSTANCE: polyesteruretane is dissolved in dimethyl formamide followed by addition of 13-20 % by weight of incontinuous hollow poly-4-methylpent-1-ene filament to the resulting solution prior to film-formation. The resulting mixture is applied to substrate material followed by film-forming in coagulating medium, washing and drying to obtain poromeric film material with percentage elongation 120-210, vapor permeability 1.3-2.0 mg/cm kW/h. EFFECT: high water vapor resistance. 1 tbl

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RU 2 005 748 C1

Authors

Gajdarova L.L.

Tsivinskaja L.K.

Dates

1994-01-15—Published

1992-06-09—Filed