Process for preparing flowable amorphous poly-alpha olefin adhesive pellets
US9364985B2 · kind B2 · utility
0Cited by
30References
10Claims
0Family size
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Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | May 24, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/124
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for producing free-flowing, agglomeration resistant amorphous poly-alpha-olefin based adhesive pellets. The process includes (a) extruding the adhesive through an orifice of a die plate immersed in a cooling fluid; (b) cutting the adhesive into a plurality of pellets in the cooling fluid; (c) solidifying the pellets at a temperature range of about 25° C. to about 40° C. for at least 30 minutes; and (d) separating the pellets from the recrystallization fluid and drying the pellets. The pellets harden at least three folds faster than conventionally formed pellets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.