Method of coating glass fibers

Abstract

Abstract THE METHOD FO COATIG GLASS FIBERS BY CONTACTING THE FIBERS WITH A FOAM OF THE COATING MATERIAL. IN ONE METHOD, THE FOAM IS SUPPORTED ADJACENT THE HOT BUSHING FROM WHICH THE MOLTEN STREAMS OF GLASS ARE PULLED TO FORM THE FILAMENTS, SO THAT THE FOAM CONTACTS THE FIBERS BEFORE THE FIBERS PICK UP ANY APPREICABLE AMOUNT OF WATER OR ORGANIC MATERIALS FROM THEATMOSPHERE. THE FOAM MAY BE OF ORGANIC BASE, SO THAT THE SURFACE HAS OLEPHOBIC PORTIONS EXTENDING OUTWARD AND OLEPHILIC PORTIONS EXTENDING INTO ABLY A COUPLING AGENT FOR THE GLAS, AND THE OLEPHILIC PORTIONS PREFERAVLY HAVE A BENZENE RING ADJACENT THE TERMINAL ENDS. THIS PROCESS CAN ALSO BE USED TO COAT WOVEN FABRICS BY HEAT CLEANING THE FABRIC AND THEN CONTACTING IT WITH THE FOAM. THE FOAM OF COATING MATERIAL MAY BE POSITIONED IN THE PATH OF FIBERS ISSUING FROM A CENTRIFUGE TO CUSHION AND COAT THE FIBERS. THE FOAM OF COATING MATERIAL MAY ALSO BE PROJECTED INTO GAS STEAM CARRYING RANDOMLY ORIENTED FIBERS TO PRODUCT GLASS FIBER MAT, OR CAN BE SPREAD UPON THE SURFACE OF THE MAT, AND THE FOAM BROKEN TO WET OUT THE FIBERS AND PRODUCE A BONDED MAT.

Inventors

• 👤 Robert G Russell

Bibliographic Details