Manufacturing process of composite sheet

• Main Author: FUJITA, TADAYOSHI
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2008
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a manufacturing process which has not only moisture-permeable property and water resistance but also excellent heat resistance, weathering resistance and durability so as to be usable for industrial materials such as a waterproof sheet of housing, further does not volatilize a large amount of solvents such as a solvent type adhesive for use in a dry laminate, and less affects an environment when a composite sheet is manufactured by joining a hen the air-permeable reinforcement material is coated with a hot melt adhesive to adhere the olefine type porous film, the process comprises providing a roll first contact-bonding from the side of an olefine type porous film as a heating roll, setting the temperature of the heating roll in the range of from a temperature higher by 5 DEG C to a temperature lower by 15 DEG C than that of the extrapolated melting completion temperature of the olefine type porous film indicated by a differential scanning calorimetry, further setting the time for bringing the heati