Patent ID: 9153377
Filing Date: 2015-10-06
Classification: B32B,C08K,H01F,Y10T

Abstract:
1. A rod-shaped article, adapted to be used in a hand actuated hot-melt adhesive applicator or dispenser, comprising a thermoplastic magnetic composite, wherein the magnetic composite comprising: (a) a thermoplastic polymer phase comprising 0.6 to 92 wt. % and 14 to 60 vol. % of the composite, the polymer characterized by melt flow properties such that the viscosity of the polymer at about 265° C. is about 500-2000 cP; and (b) a magnetic particulate comprising 3 to 99.4 wt. % and 31 to 86 vol. % of the composite, the particulate intermixed with the polymer phase, the particulate having about 0.005 to 3 wt. % of a coating of an interfacial modifier wherein the interfacial modifier at least partially coats the particulate, the particulate having a particle size where no more than 10 wt. % of the particles are under 10 microns; wherein the particulate and polymer phase comprise greater than 95 vol. % of the composite, the composite having a density of 0.2 to 16 g/cm 3 and a viscosity of less than about 100,000 cP at about the melt temperature of the composite.