Hot melt adhesive comprising functionalized polyolefins
US12384946B2 · kind B2 · utility
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Key dates
| Filing date | May 10, 2022 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Oct 19, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2423/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Hot melt adhesive including a polar group-containing olefin copolymer has: number average molecular weight (Mn) between 10 to 50 kg/mol, crystallinity (Xc) content below 30%, enthalpy (ΔH) between 5 to 65 J/g, polydispersity index (PDI) from 2 to 6, melting temperature (Tm) between 40 and 120° C., and including at least 80 mol % of a constituent unit of formula (1), optionally a constituent unit of formula (2), and between 0.1 to 1 mol %, of a constituent unit of formula (3):
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.