Low activation temperature adhesive composition with high peel strength and cohesive failure
AssigneeE. I. Du Pont de Nemours and Company
InventorsSassan Hojabr, Stephen Robert Tanny
Life of this patent
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Abstract
The present invention provides a resin composition made from admixing starting materials comprising: (a) 0 to 90 parts by weight of a polyolefin; (b) 5 to 95 parts by weight of a functional polyolefin; (c) 5 to 40 parts by weight of a polystyrenic; and (d) 0 to 30 parts by weight of an elastomer, where the total amount of components of (a), (b), (c) and (d) in the resin composition is 100 parts by weight. In a further embodiment, component (a) is a non-olefin copolymer and component (c) is high impact polystyrene. The resin compositions are useful as adhesives for metal and polyolefin substrates.
Claims12
A composition made from admixing starting materials consisting essentially of:
- (a) 20 to 60 parts by weight of polyethylene;
- (b) 10 to 30 parts by weight of maleic anhydride grafted polyethylene;
- (c) 10 to 35 parts by weight of a high impact polystyrene;
- and
- (d) 10 to 25 parts by weight of an ethylene-propylene diene rubber compound,
- where the total amount of components of (a), (b), (c) and (d) in the resin composition is 100 parts by weight.
An adhesive composition comprising the resin of claim a 1.
A resin composition made from admixing starting materials consisting essentially of:
- (a) 40 to 60 parts by weight of ethylene vinyl acetate copolymer;
- (b) 10 to 30 parts by weight of maleic anhydride grafted polyethylene;
- (c) 10 to 35 parts by weight of high impact polystyrene;
- and
- (d) 10 to 25 parts by weight of an ethylene-propylene diene rubber compound,
- where the total amount of components of (a), (b), (c) and (d) in the resin composition is 100 parts by weight.
Dependencies are inferred from the claim text.