PETROLEUM ASPHALT FIBER, FORMED ARTICLE OF PETROLEUM ASPHALT FIBER AND THEIR PRODUCTION

摘要

PURPOSE: To provide a petroleum asphalt fiber and a formed article of the fiber useful e.g. for a water-proof sheet suitable for water-proofing work. ;CONSTITUTION: This petroleum asphalt fiber is produced by spraying molten petroleum asphalt through an orifice of a spinner by centrifugal force and blowing hot air flow to the sprayed primary fibers to form secondary fibers. The petroleum asphalt fiber is collected by a cotton collector and formed in the form of nonwoven fabric, felt or mat to obtain a formed article of the petroleum asphalt fiber.;COPYRIGHT: (C)1995,JPO