Hot melt adhesives based on graft copolymers

Stock material or miscellaneous articles – Hollow or container type article

Reexamination Certificate

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Details

C428S034200, C428S035700, C428S411100, C428S500000, C525S057000, C525S063000

Reexamination Certificate

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10762175

ABSTRACT:
Water-soluble or water-dispersible hotmelt adhesives are prepared using graft copolymers produced by graft copolymerizing olefinically unsaturated monomers onto polyalkylene oxides. The adhesives additionally contain at least one resin which improves tackiness and the compatibility of the adhesive components. Other components such as polymers, plasticizers, and additives may also be present. The adhesives are especially suited for use in the labelling of recyclable or reuseable hollow containers. The adhesive may be completely separated from the hollow containers and dissolved in an alkaline washing liquor even at low temperatures.

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Standard Test Method for Apparent Viscosity of Hot Melt Adhesives and Coating Materials, American Society for Testing and Materials, ASTM D 3236-88, pp. 1-8 (1999).

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