Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in tubular or loop reactor
Reexamination Certificate
2005-09-20
2005-09-20
Zalukaeva, Tatyana (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in tubular or loop reactor
C524S272000, C524S275000, C524S277000, C526S086000, C526S087000, C526S229000, C526S329000, C526S319000, C428S036920, C428S348000
Reexamination Certificate
active
06946528
ABSTRACT:
The invention provides a hot melt adhesive composition including a tubular reactor copolymer of ethylene and 5 to 20 mol % of comonomer units derived from an alkyl acrylate or alkyl methacrylate, wherein the copolymer has a melt index of at least 300 g/10 min. The alkyl group of the alkyl acrylate or alkyl methacrylate can be a linear or branched C1to C12group, particularly n-butyl. If desired, the hot melt adhesive can further include tackifiers, waxes, antioxidants and other desired additives. The hot melt adhesive composition shows improved heat resistance and favorable properties, such as has a shear adhesion fail temperature of at least 80° C., without the need to use high melting waxes. The invention further provides articles such as cartons, cases, trays, bookbindings or disposables including the hot melt adhesive compositions.
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Domine Joseph D.
Pugh Sally Q.
Tancrede Jean M.
ExxonMobil Chemical Patents Inc.
Griffis Andrew B.
Walsh Maria C.
Zalukaeva Tatyana
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