Method of forming yarns from staple glass fibers

Claim 1

THE METHOD OF FORMING YEARS OF STABLE GLASS FIBERS COMPRISING THE STEPS OF COLLECTING STAPLE GLASS FIBERS IN CONTINUOUS FASHION TO FORM AN ENDLESS WEB IN WHICH THE FIBERS ARE INTERFELTED IN THE FORM OF A BUNDLE BUT EXTEND GENERALLY IN A LONGITUDINALLY DIRECTION, CONTINUOUSLY DRAFTING THE WEB FROM A DISTANT STATION WHEREBY RELATIVE MOVEMENT TAKES PLACE BETWEEN THE FIBERS TO CAUSE THE FIBER CONCENTRATION TO BECOME THINNED IN CROSS SECTION AND BY WHICH THE FIBERS ARE BROUGHT INTO MORE UNIFORM LENGTHWISE ALIGNMENT TO FORM THE WEB INTO A YARN, AND COATING THE FIBERS PRIOR TO DRAFTING BUT AFTER THE FIBERS HAVE BEEN FORMED INTO THE ENDLESS WEB WITH A FLUID COMPOSITION CONTAINING FROM 1-15 PERCENT BY WEIGHT OF A POLYDRIC ALCOHOL POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYHYDRIC ALCOHOLS, POLYALKYL GLYCOLS AND ESTERS THEREOF AND FATTY ACID DERIVATIVES THEREOF DISSOLVED IN A SOLVENT MEDIUM A PORTION OF WHICH IS ELIMINATED IN THE INTERIM BETWEEN THE APPLICATION OF THE COATING AND DRAFTING WHEREBY THE COAT ING COMPOSTION IMPARTS CHARACTERISTICS AT THE TIME OF DRAFTNG TO PROVIDE A BALANCE BETWEEN BONDING WHICH CAUSES THE FIBERS TO CLING TOGETHER SUFFICIENTLY TO MAINTAIN MASS INTEGRITY, LUBRICITY SUFFICIENT TO PERMIT RELATIVE MOVE MENT TO THE FIBERS WHILE FUNCTIONING TO PROTECT THE FIBERS AGAINST DESTRUCTION BY MUTUAL ABRASION, AND DRAG TO CONTROL THE MOVEMENT FOR THINNING OF THE FIBERS AND ALIGNMENT OF THE FIBERS DRAFTING.

Claim 2

THE METHOD OF FORMING YEARS OF STABLE GLASS FIBERS COMPRISING THE STEPS OF COLLECTING STAPLE GLASS FIBERS IN CONTINUOUS FASHION TO FORM AN ENDLESS WEB IN WHICH THE FIBERS ARE INTERFELTED IN THE FORM OF A BUNDLE BUT EXTEND GENERALLY IN A LONGITUDINALLY DIRECTION, CONTINUOUSLY DRAFTING THE WEB FROM A DISTANT STATION WHEREBY RELATIVE MOVEMENT TAKES PLACE BETWEEN THE FIBERS TO CAUSE THE FIBER CONCENTRATION TO BECOME THINNED IN CROSS SECTION AND BY WHICH THE FIBERS ARE BROUGHT INTO MORE UNIFORM LENGTHWISE ALIGNMENT TO FORM THE WEB INTO A YARN, AND COATING THE FIBERS PRIOR TO DRAFTING BUT AFTER THE FIBERS HAVE BEEN FORMED INTO THE ENDLESS WEB WITH A FLUID COMPOSITION CONTAINING FROM 1-15 PERCENT BY WEIGHT OF A POLYDRIC ALCOHOL POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYHYDRIC ALCOHOLS, POLYALKYL GLYCOLS AND ESTERS THEREOF AND FATTY ACID DERIVATIVES THEREOF DISSOLVED IN A SOLVENT MEDIUM A PORTION OF WHICH IS ELIMINATED IN THE INTERIM BETWEEN THE APPLICATION OF THE COATING AND DRAFTING WHEREBY THE COAT ING COMPOSTION IMPARTS CHARACTERISTICS AT THE TIME OF DRAFTNG TO PROVIDE A BALANCE BETWEEN BONDING WHICH CAUSES THE FIBERS TO CLING TOGETHER SUFFICIENTLY TO MAINTAIN MASS INTEGRITY, LUBRICITY SUFFICIENT TO PERMIT RELATIVE MOVE MENT TO THE FIBERS WHILE FUNCTIONING TO PROTECT THE FIBERS AGAINST DESTRUCTION BY MUTUAL ABRASION, AND DRAG TO CONTROL THE MOVEMENT FOR THINNING OF THE FIBERS AND ALIGNMENT OF THE FIBERS DRAFTING.