POLYOLEFIN RESIN FOAM SHEET AND ADHESIVE TAPE

• Main Authors: NAGAI ASAMI, YACHI KOJI, MATSUKI SHIGEKI
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2019
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; WORKING-UP

To provide a polyolefin resin foam sheet which is excellent in impact absorption property and impact resistance, has voltage resistance and is thin in thickness, and an adhesive tape using the same.SOLUTION: A polyolefin resin foam sheet is formed by foaming a polyolefin resin and has a plurality of air bubbles, in which the average cell diameter and the maximum cell diameter in an MD direction and a TD direction of the polyolefin resin foam sheet are predetermined values, and both a ratio [TD fracture point strength/MD average cell diameter] and a ratio [MD fracture point strength/TD average cell diameter] are 80 kPa/μm or more.SELECTED DRAWING: None 【課題】衝撃吸収性及び耐衝撃性に優れると共に、耐電圧性を備える薄厚のポリオレフィン系樹脂発泡シート、及びこれを用いた粘着テープを提供する。【解決手段】ポリオレフィン系樹脂を発泡したものであり、複数の気泡を有するポリオレフィン系樹脂発泡シートであって、前記ポリオレフィン系樹脂発泡シートのＭＤ方向及びＴＤ方向の平均気泡径及び最大気泡径が所定の値であり、比［ＴＤ破断点強度／ＭＤ平均気泡径］と比［ＭＤ破断点強度／ＴＤ平均気泡径］とが、いずれも８０ｋＰａ／μｍ以上であるポリオレフィン系樹脂発泡シート。【選択図】なし