Patent ID: 6034006
Filing Date: 2000-03-07
Classification: D04H,Y10T

Abstract:
A process for manufacturing a glass strand mat, comprising:depositing a sheet of glass strands on a moving conveyor, applying a liquid binder composition containing an aqueous solution of polyvinyl alcohol, said liquid having a viscosity during deposition of less than approximately 40 millipascal seconds and in an amount so as to obtain between 3 and 15% by weight of binder in the dry-matter state with respect to the weight of glass, subjecting the sheet to an oven treatment and, optionally, calendaring,wherein the binder is deposited in the form of a liquid sheet or of a wall of liquid streams which fall onto the entire width of the sheet of strands, andwherein some of the binder is deposited upstream of the region in which it is deposited in the form of a liquid sheet or of a wall of liquid streams.