Amorphous hexene-1 based polymeric hot melt adhesive
US10266731B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 24, 2018 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Aug 24, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hot melt adhesive formulation includes 60 to 99 wt. % of an amorphous propylene-co-hexene-1 polymer component based on the total weight of the hot melt adhesive without the use of flammable solvents, 20 to 80 wt % of hexene-1 co-monomer based on the total weight of the amorphous propylene-co-hexene-1 copolymer component, 20 to 80 wt. % of a propylene co-monomer based on the total weight of the amorphous propylene-co-hexene-1 copolymer component, and from 1 to 40 wt. % of a co-adjuvant based on the total weight of the hot melt adhesive. The hot melt adhesive formulation has rolling ball tack from 2 to 50 centimeters at ambient temperature after conditioning at ambient temperatures for 24 hours. The hexene-1 monomer to propylene monomer ratios are from 4:1 to 1:4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.