Patent ID: 8043675

Claim:
A glass sealant product comprising: a co-extruded glass sealant and a thermoplastic polymeric skin, said glass sealant comprising: a) 5 to 65 wt % of butyl rubber or polyisobutylene rubber or EPDM rubber or mixtures thereof, b) 10 to 70 wt % inorganic filler, c) 0.25 to 5 wt % adhesion promoter, d) 0 to 30 wt % plasticizer, and e) 10 to 40 wt % tackifier resin, wherein the glass sealant has a processing temperature for application from 70° C. to 220° C.; and said thermoplastic polymeric skin surrounding at least a portion of said sealant and hermetically sealing said glass sealant by the skin, wherein said skin constitutes no more than 10 wt % of the total weight of said product, and wherein said thermoplastic polymeric skin has a minimum film forming temperature of at least 50° C. and a softening point which is lower than the processing temperature for application of said sealant by a difference in temperature of more than 10° C.