Polyolefin bonding adhesive film
AssigneeNan Ya Plastics Corporation
InventorsTe-Chao Liao, Ching-Yao Yuan, Chih-Feng Wang, Teng-Ko Ma
Life of this patent
Estimating the term…
Abstract
A polyolefin bonding adhesive film includes a support base layer and a bonding adhesive layer formed on a side surface of the support base layer by co-extrusion. The support base layer is a polypropylene film. The bonding adhesive layer is formed of a first polyolefin copolymer modified by maleic anhydride. The first polyolefin copolymer is formed by copolymerization of at least two kinds of C2 to C4 olefin molecules, a first graft ratio of the maleic anhydride grafted onto the first polyolefin copolymer is between 0.5% and 5%, and a first melt index of the first polyolefin copolymer is between 3 g/10 min and 5 g/10 min.
Claims12
A polyolefin bonding adhesive film, comprising:
- a support base layer being a polypropylene film;
- and
- a bonding adhesive layer being formed on a side surface of the support base layer by co-extrusion;
- wherein the bonding adhesive layer is formed of a first polyolefin copolymer modified by maleic anhydride;
- wherein the first polyolefin copolymer is formed by copolymerization of at least two kinds of C2 to C4 olefin molecules, a first graft ratio of the maleic anhydride grafted onto the first polyolefin copolymer is between 0.5% and 5%, and a first melt index of the first polyolefin copolymer is between 3 g/10 min and 5 g/10 min.
Dependencies are inferred from the claim text.