Process for the production of siloxanecoated separating paper

Claim 1

IN THE PROCESS FOR PREPARING SILOXANE-COATED SEPARAING PAPERS BY APPLYING TO THE PAPER A MIXTURE WHICH CONTAINS (A) BETWEEN 1 AND 70 PARTS BY WEIGHT OF AN ESSENTIALLY LINEAR ORGANOPOLYSILOXANE CONTAINING TERMINAL BY DROXYL GROUPS BOUND TO SILICON AND HAVING THE FORMULA R(M/2) (H3C)(M/2) SI-O((4-M)/2) WHEREIN R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS AND M HAS A VALUE OF FROM 1.9-2.1; (B) BETWEEN 99 AND 30 PARTS BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING THE FORMULA R''(3N/4) (H3C)(N/4) SI-O((4-N)/2) WHEREIN R'' IS A HYDROCARBON RADICAL AND N HAS A VALUE OF FROM 0.5-1.5; AND (C) BETWEEN 0.1 AND 10% OF THE TOTAL OF THE WEIGHT OF (A)+(B) OF A CURING CATALYST, DRYING AND HEATING THE COATED PAPER AT A TEMPERATURE OF 100-150*C.; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN SAID MIXTURE BETWEEN 0.1-10% OF THE TOTAL OF THE WEIGHT OF (A)+(B) OF A BORON COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORON OXIDE, BORIC ACID, BORIC ACID ALKYL ESTERS, ALKYLBORIC ACID ALKYL ESTERS HAVING THE FORMULA R"AB(OR''")3-A, AND ALKYL BOROXOLES HAVING THE FORMULA (R"BO)3 WHEREIN R" AND R''" EACH REPRESENT LOWER ALKYL RADICALS AND A IS AN INTEGER FROM 1 TO 2.