Film-wrapped type hot melt adhesive
OwnerTakeshi Kiyohara, Takanori Okuda +1inventors
InventorsTakeshi Kiyohara, Takanori Okuda, Shigekazu Saito
Life of this patent
Estimating the term…
Abstract
Disclosed is a film-wrapped type hot melt adhesive, comprising: a film made from a thermoplastic resin composition and a hot melt adhesive wrapped by the film, wherein the thermoplastic resin composition comprises an ethylene homopolymer, and a concavo-convex is formed on a surface of the film. The film-wrapped type hot melt adhesive has blocking resistance and thermal stability which are improved in a balanced manner.
Claims2
A process for forming a film-wrapped type hot melt adhesive comprising the steps of:
- (a) preparing a hot melt adhesive in a molten form,
- (b) Solidifying the hot melt adhesive into a hot melt block
- (c) Wrapping the hot melt block with a thermoplastic film,
- wherein the thermoplastic film has a first surface that faces inward towards the hot melt block and a second surface that faces outwards away from the hot melt block, and
- wherein the second surface of the thermoplastic film has concavo-convex pattern.
A process for forming a film-wrapped type hot melt adhesive comprising the steps of:
- (a) preparing a hot melt adhesive in a molten form,
- (b) pouring the molten hot melt adhesive onto a thermoplastic film,
- wherein the thermoplastic film has a first surface that faces the molten hot melt adhesive and a second surface that faces outwards away from the molten hot melt adhesive, and
- wherein the second surface of the thermoplastic film has concavo-convex pattern,
- (c) solidifying the molten hot melt adhesive,
- whereupon the hot melt adhesive solidified onto the thermoplastic film.
Dependencies are inferred from the claim text.