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US 6,448,338 B1Granted
Hot-setting wash-fast sealant for shell structures
AssigneeHenkel-Teroson GmbH
InventorsPeter Born, Klaus Hoellriegel
Life of this patent
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Abstract
Hot-pumpable, heat-curing compositions based on solid ethylene/vinyl acetate copolymers and liquid reactive plasticizers containing olefinically unsaturated double bonds and at least one peroxidic crosslinking agent are suitable as sealing compounds for sealing fine and rough seams in vehicle manufacture. By adding expanding agents, the compositions may be used as lining adhesives. The preferred applications are at the white-shell stage of car manufacture.
Claims19
A hot-pumpable, heat-curing composition comprising:
- a) at least one ethylene vinyl acetate (EVA) copolymer having a softening point above 50° C., as measured by the ring and ball method according to ASTM E-28;
- b) an amount of at least one liquid reactive plasticizer containing olefinically unsaturated double bonds to make the composition applicable within a temperature range of 60° C. to 110° C.;
- and
- c) at least one peroxide crosslinking agent wherein the composition is tack free after application and cooling.
1 more element
Dependencies are inferred from the claim text.