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US 4,360,622 AGranted
Hot melt adhesive compositions comprising hydrogenated resin and ethylene-polar vinylic compound copolymer or wax
AssigneeNippon Oil Co., Ltd.
InventorsShozo Tsuchiya, Akio Oshima, Hideo Hayshi
Life of this patent
Estimating the term…
Abstract
A hot melt adhesive composition comprising (I) a hydrogenated resin having a softening point of 60.degree.-130.degree. C. obtained by the hydrogenation of a copolymer resin prepared by reacting (A) at least one five-membered cyclic compound such as cyclopentadiene with (B) at least one dimer or trimer of the five-membered cyclic compound, isoprene and piperylene in specified ratios by weight, and (II) an ethylene type copolymer and/or wax.
Claims11
A hot melt adhesive composition comprising
- (I) a hydrogenated resin (2) having a softening point of 60.degree.-130.degree. C. obtained by the hydrogenation of a copolymer resin (1) prepared by copolymerizing
- 20-38 parts by weight of at least one ingredient (A) selected from the group consisting of five-membered cyclic compounds having conjugated double bonds and the Diels-Alder's adducts thereof, the five-membered cyclic compounds being represented by the following general formula ##STR3## wherein H is hydrogen, R is an alkyl group having 1-3 carbon atoms, m and n are each zero or an integer of at least 1 with the proviso that the total of m and n is 6, with
- 8- 62parts by weight of at least one ingredient (B) selected from the group consisting of homodimers, codimers, homotrimers and cotrimers of at least one diene selected from the group consisting of said five-membered cyclic compounds, isoprene and piperylene, the dimers and trimers covered by the ingredient (A) being excluded, and
- (II) at least one member selected from the group consisting of copolymers of ethylene and a polar vinylic compound and waxes.
1 more element
A hot melt adhesive composition consisting essentially of
- (I) a hydrogenated resin (2) having a softening point of 60.degree.-120.degree. C. obtained by the hydrogenation of a copolymer resin (1) prepared by copolymerizing
- 20-38 parts by weight of at least one ingredient (A) selected from the group consisting of five-membered cyclic compounds having conjugated double bonds and the Diels-Alder's adducts thereof, the five-membered cyclic compounds being represented by the following general formula ##STR4## wherein H is hydrogen, R is an alkyl group having 1-3 carbon atoms, m and n are each zero or an integer of at least 1 with the proviso that the total of m and n is 6, with
- 8- 62parts by weight of at least one ingredient (B) selected from the group consisting of homodimers, codimers, homotrimers and cotrimers of at least one diene selected from the group consisting of said five-membered cyclic compounds, isoprene and piperylene, the dimers and trimers covered by the ingredient (A) being excluded, and
- (II) at least one member selected from the group consisting of copolymers of ethylene and a polar vinylic compound and waxes.
1 more element
Dependencies are inferred from the claim text.