Low molecular weight butene-1-co-hexene-1 amorphous poly alpha olefins for hot-melt adhesives with enhanced properties
US10752815B2 · kind B2 · utility
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Key dates
| Filing date | Aug 13, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Aug 13, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/035
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A hot-melt formulation includes a butene-1-co-hexene-1 copolymer formed from butene-1 and hexene-1 monomers synthesized using a supported Ziegler-Natta catalyst reacted with an organometallic cocatalyst, a styrenic block copolymer with less than 15 percent bound styrene, a high melt viscosity metallocene catalyzed polyolefin, a high melt viscosity polypropylene with a melt viscosity above 18,000 cps, and a low molecular weight polyethylene wax, wherein the melt viscosity of the wax is less than 1,000 centipoise at a temperature of 350 degrees Fahrenheit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.