HOT-MELT ADHESIVE AND DISPOSABLE PRODUCT

• Main Authors: MAEDA NAOHIRO, SAITO SHIGEKAZU, OKUDA TAKANORI
• Format: Patent
• Language: English
• Published: 05.07.2007
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMISTRY; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DYES; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PAINTS; POLISHES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide a synthetic resin-based hot-melt adhesive improving moist adhesion to hydrophilic base materials including cellulosic ones and cotton-based ones, and improved in preferably at least one property selected from low-temperature adhesion, viscosity, odor and economy. SOLUTION: The hot-melt adhesive comprises (A) a thermoplastic block copolymer as copolymer of a vinyl aromatic hydrocarbon and a conjugated diene compound and (B) a wax modified with a carboxylic acid and/or a carboxylic acid anhydride. This hot-melt adhesive, because of having improved moist adhesion, is useful in disposable products. A method for producing the hot-melt adhesive with improved moist adhesion is also provided, involving using the wax B. COPYRIGHT: (C)2007,JPO&INPIT