Self-adhesive tape comprising a PET substrate with high laminar strength

• Main Authors: MATZ GERO, MUSSIG BERNHARD, NEUBERT INGO
• Format: Patent
• Language: Chinese; English
• Published: 10.04.2020
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; 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 INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES

The invention relates to an adhesive tape containing a substrate film, comprising at least one film layer, and at least one adhesive compound layer, the substrate film being biaxially oriented and atleast one of the at least one film layers containing 80 to 99% by weight polyethylene terephthalate as the base polymer and 1 to 20% by weight, preferably 2 to 15% by weight, most preferably 5 to 10%by weight of an additive polymer, the weight percentages relating to the polymer component, characterized in that the additive polymer has a glass transition temperature TG that lies at least 10 K, preferably at least 20 K, below the glass transition temperature TG of polyethylene terephthalate. 本发明涉及胶带，其包含载体膜和至少一个胶粘剂层，所述载体膜包括至少一个膜层，所述载体膜是双轴取向的，并且所述至少一个膜层的至少一个包含80-99重量％的作为基础聚合物的聚对苯二甲酸乙二醇酯和1-20重量％、优选地2-15重量％、最优选地5-10重量％的添加剂聚合物，其中重量百分数在各自的情况下相对于聚合物组分，其特征在于所述添加剂聚合物具有低于聚对苯二甲酸乙二醇酯的玻璃化转变温度T至少10K、优选地至少20K的玻璃化转变温度T。