Adhesive tape
AssigneeMaxell Holdings, Ltd.
InventorsMasanao Shibuya, Yusuke Kato, Takayuki Shimoda, Katsumi Hashimoto, Takahiro Sakai
Life of this patent
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Abstract
The adhesive tape includes: a resin layer that is formed by applying resin coating, the resin coating containing a resin having an acid number of 50 mg/g or more and 130 mg/g or less, and at least one type of cross-linking agent selected from between an epoxy-based cross-linking agent and a metal chelate cross-linking agent; and an adhesive layer that is laminated on or above the resin layer, and is formed by applying adhesive coating, the adhesive coating containing a resin including a hydroxyl group, and a metal chelate compound.
Claims8
An adhesive tape having no base sheet of a PET film comprising:
- a resin layer that is formed by applying a resin coating, the resin coating containing a resin having an acid number of 50 mg/g or more and 130 mg/g or less, and at least one type of cross-linking agent selected from an epoxy-based cross-linking agent and a metal chelate cross-linking agent, the resin layer being capable of having decorating printing on the resin layer;
- and
- an adhesive layer that is laminated on or above the resin layer, and is formed by applying an adhesive coating, the adhesive coating containing a resin including a hydroxyl group, and a metal chelate compound,
- wherein the resin having the acid number, contained in the resin layer, is at least one type selected from among an acrylic resin, a polyester resin, and an urethane resin,
- a weight-average molecular weight of the resin having the acid number, contained in the resin layer is equal to or more than 100,000 and equal to or less than 400,000,
- a glass transition temperature (Tg) of the resin having the acid number, contained in the resin layer is 20° C. or more, and
- the metal chelate cross-linking agent and the metal chelate compound are different.
An adhesive tape having no base sheet of a PET film comprising:
- a resin layer that is formed by applying a resin coating, the resin coating containing a resin having an acid number of 50 mg/g or more and 130 mg/g or less, and at least one type of cross-linking agent selected from an epoxy-based cross-linking agent and a metal chelate cross-linking agent;
- and
- an adhesive layer that is laminated on or above the resin layer, and is formed by applying an adhesive coating, the adhesive coating containing a resin including a hydroxyl group, and a metal chelate compound,
- wherein the resin having the acid number, contained in the resin layer, is at least one type selected from among an acrylic resin, a polyester resin, and an urethane resin,
- a glass transition temperature (Tg) of the resin having the acid number, contained in the resin layer is 20° C. or more,
- the metal chelate cross-linking agent and the metal chelate compound are different,
- the thickness of the resin layer is 10 μm or less, and
- the thickness of the adhesive layer is 15 μm or less.
Dependencies are inferred from the claim text.