Paint masking tape
AssigneeSony Chemicals Corp.
InventorsManabu Ono, Masao Murakami
Life of this patent
Estimating the term…
Abstract
The paint masking tape comprises a substrate, an adhesive layer formed on one side of the substrate, and a backing resin layer formed on the back surface of the substrate. Here, the backing resin layer contains a urethane resin and an epoxy resin or a compound containing aziridine ring(s). The paint masking tape does not tear easily when peeled off from a paint object, inhibits the flaking-induced scattering of paint flakes, and provides clearly visible parting lines.
Claims11
A paint masking tape, comprising:
- a substrate defining a top side and a bottom side;
- an adhesive layer having an adhesive formed on the bottom side of the substrate;
- and
- a backing layer having a backing resin formed on the top side of the substrate, the backing resin including a urethane resin and an epoxy resin, wherein the backing layer includes the epoxy resin in an amount of 4.0-10.0 weight parts per 100 weight parts of the urethane resin.
A paint masking tape, comprising:
- a substrate defining a top side and a bottom side;
- an adhesive layer having an adhesive formed on the bottom side of the substrate;
- and
- a backing layer including a backing resin formed on the top side of the substrate, the backing resin including a urethane resin and a material selected from the group consisting of an epoxy resin and a compound having at least one aziridine ring, wherein an elasticity at break during a peeling off of the masking tape is 20-60%.
A paint masking tape comprising:
- a substrate comprising a top side and a bottom side;
- an adhesive layer formed on the bottom side of the substrate;
- a backing resin layer formed on the top side of the substrate, the backing resin layer comprising a urethane resin and a compound comprising at least one aziridine ring.
A paint masking tape, comprising:
- a substrate defining a top side and a bottom side;
- an adhesive layer having an adhesive formed on the bottom side of the substrate;
- and
- a backing layer including a backing resin formed on the top side of the substrate, the backing resin including a urethane resin and a material selected from the group consisting of an epoxy resin and a compound having at least one aziridine ring, wherein a colored layer is formed between the substrate and the backing resin layer by dispersing a colorant in a binder.
A paint masking tape, comprising:
- a substrate defining a top side and a bottom side;
- an adhesive layer having an adhesive formed on the bottom side of the substrate;
- and
- a backing layer including a backing resin formed on the too side of the substrate, the backing resin having a urethane resin and a material selected from the group consisting of an epoxy resin and a compound having at least one aziridine ring, wherein an initial elastic modulus is less than 10 kg/mm2.
A paint masking tape, comprising:
- a substrate defining a top side and a bottom side;
- an adhesive layer having an adhesive formed on the bottom side of the substrate;
- and
- a backing layer having a backing resin formed on the top side of the substrate, the backing resin having a urethane resin and a material selected from the group consisting of an epoxy resin and a compound having at least one aziridine ring, wherein an initial elastic modulus is 6-9 kg/mm2.
Dependencies are inferred from the claim text.