The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Mar. 30, 2023
Savare' I.c. S.r.l., Milan, IT;
Alberto Bugana, Milan, IT;
Italo Corzani, Milan, IT;
SAVARE' I.C. S.R.L., Milan, IT;
Abstract
Hot-melt adhesives are disclosed that include, a polymeric blend of two polymers of butene-1, A) and B). Polymer A) is a copolymer of non-isotactic butene-1, having a monomodal composition, a Polydispersity Index Mw/Mn not lower than 3.5, composed by butene-1 copolymerised with one or more alpha-olefin(s) selected from ethene, propene and alpha-olefins C5 to C12. Said polymer A) has a content of copolymerised comonomer(s) not lower than 20 mol %. Polymer B) is polymeric composition of isotactic butene-1, with Polydispersity Index Mw/Mn lower than 3.5 and a bimodal composition, i.e., constituted by two butene-1 polymers, B1) and B2), being homopolymers or copolymers of butene-1 with the same other alpha-olefins mentioned for polymer A), the overall content of comonomer(s) in B) being lower than 20% by mole. Both polymers A) and B) exhibit peculiar thermal properties, like Enthalpy of Fusion, Peak Melting Temperature and Glass Transition Temperature.