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US 2026/0265457 A1Published application
Polycarbonate foam material, precursor composition and kit thereof
AssigneesBasque Center for Macromolecular Design and Engineering, Polymat Fundazioa, Universidad Del Pais Vasco/Euskal Herriko Unibertsitatea
InventorsTansu ABBASOGLU, Lourdes IRUSTA MARITXALAR, Haritz SARDÓN MUGURUZA
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Abstract
A composition useful for the formation of polycarbonate foams with no need of external blowing agent and a process for the preparation of a polycarbonate foam, a polycarbonate foam resulting from the process and a kit of parts for the preparation of a polycarbonate foam are disclosed.
Claims22
A composition comprising:
- (a) a first component that is a compound A1 comprising in its molecular formula one or more moieties of formula (I)
- wherein each wavy line represents the position to which the moiety of formula (I) is attached to the remainder of the compound of formula A1, provided that at least one of said attachments is to a hydrogen atom;
- (b) a second component that is water or a compound A2 comprising in its molecular formula a plurality of thiol groups or masked precursors thereof;
- (c) a third component that is a compound A3 comprising in its molecular formula one or more moieties of formula (II)
- wherein each wavy line represents the position to which the moiety of formula (II) is attached to the remainder of the compound of formula A3;
- (d) optionally, a polyol compound, and
- (e) optionally, a catalytically effective amount of a catalyst suitable for the reaction of water or a thiol group of the compound A2 with an aliphatic carbon atom of the moiety of formula (I) in the compound A1.
4 more elements
-14. (canceled)
A polycarbonate foam comprising in its molecular formula at least one moiety of formula (IV)
- wherein X is S or O.
-20. (canceled)
Dependencies are inferred from the claim text.