ADHESIVE SHEET FOR PROTECTION OF COATING FILM

• Main Authors: KAI, MAKOTO, SUZUKI, HIDENORI, UESUGI, MASANORI, SHIRAI, MITSUYOSHI, IMOTO, EIICHI
• Format: Patent
• Language: English; French; Japanese
• Published: 19.11.2009
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

Disclosed is an adhesive sheet for protecting a coating film, which has flexibility and comprises a base layer comprising a composite film containing at least a urethane polymer and an adhesive layer. The adhesive sheet has a 10% modulus of 35 N/cm or less at 20°C and a 100% modulus of 8 N/cm or more at 20°C. Preferably, the adhesive sheet has a breaking strength of 40 N/cm or more. L'invention concerne une feuille adhésive pour la protection d'un film de revêtement, qui est flexible et comprend une couche de base comprenant un film composite qui contient au moins un polymère d'uréthane et une couche adhésive. La feuille adhésive a un module à 10 % de 35 N/cm ou moins à 20 °C et un module à 100 % de 8 N/cm ou plus à 20 °C. De préférence, la feuille adhésive a une résistance à la rupture de 40 N/cm ou plus.