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US 12,448,552 B2Granted
Adhesive bond between a thermoplastic material and an elastomer composition
AssigneeSika Technology AG
InventorsAndreas Kramer, Urs Burckhardt, Michael Schlumpf, Martin Demmig
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Abstract
An adhesive bond between at least one thermoplastic and an elastomer composition containing at least one polyether having blocked hydroxyl groups as plasticizer. With the adhesive bond, it is possible to bond thermoplastics such as polycarbonate or polystyrene in particular to the elastomer composition essentially without stress cracking and hence reliably and permanently.
Claims11
An article comprising
- (i) at least one thermoplastic substrate and
- (ii) a layer of an elastomer composition containing at least one plasticizer,
- wherein the layer of the elastomer composition is an adhesive directly adhered to the thermoplastic substrate, wherein the at least one plasticizer includes a polyether having blocked hydroxyl groups, wherein the polyether having blocked hydroxyl groups has an average molecular weight Mn in a range from 4,000 to 8,500 g/mol, and wherein the thermoplastic substrate is a polycarbonate or polystyrene.
Dependencies are inferred from the claim text.