METHOD FOR INCREASING RUPTURE STRENGTH AND POROSITY OF CALENDER BOWL PAPER Russian patent published in 1998 - IPC

Abstract RU 2118418 C1

FIELD: paper production industry. SUBSTANCE: method can be used for production of electronic printed-circuit substrates. Increased strength and porosity are achieved due to thermal treatment of calender bowl sheets made from poly(p-phenylenterephtalamide short fibres and poly(m-phenyleneisophtalamide fibroids. EFFECT: higher efficiency. 3 cl

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RU 2 118 418 C1

Authors

Birol Kirajoglu

Vil'Jam Dzhon Sallivan

Dates

1998-08-27—Published

1993-05-10—Filed