SKIN PROTECTIVE MATERIAL

• Main Authors: HIRAKAWA YONEO, YOSHIDA MASAHIRO, ABE TOMOJI, SHIGA KEIICHIRO, MATSUOKA KASAO
• Format: Patent
• Language: English
• Published: 02.12.1998
• Edition: 6
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROSTHESES; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS

PROBLEM TO BE SOLVED: To improve the sealing of the skin, make a skin protective material hard to cause a rash, make it unflowing, and prevent paste from remaining on the skin at time of releasing by integrally laminating a hydrophilic pressure sensitive adhesive mainly composed of an elastic polymer and a water soluble high polymer on one surface of a hydrophobic pressure sensitive adhesive mainly composed of an elastic polymer. SOLUTION: This skin protective material is formed as a two-layer structure by integrally laminating a hydrophilic pressure sensitive adhesive 1 on one surface of a hydrophobic pressure sensitive adhesive 3, and is desirably obtained by integrally laminating the hydrophilic pressure sensitive adhesive 1 on the hydrophobic pressure sensitive adhesive 3 on which a creep has cohesive power not more than 5 mm/hour (JISZ-0237). This hydrophilic pressure sensitive adhesive 1 is obtained by uniformly mixing an elastic polymer and a water soluble high polymer, in a word, a medicine or the like by a kneader. Next, an obtained mixture is rolled in a sheet shape by a T die extruder, a rolling roller and a press machine, and is stuck to the protective material 2 of the hydrophilic pressure sensitive adhesive composed of a mold parting processed plastic film and mold releasable paper simultaneously with rolling or after rolling.