Hot melt adhesive composition based on a blend of amorphous poly-&agr;-olefin and syndiotactic polypropylene
US6653385B2 · kind B2 · utility
41Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | May 15, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hot melt adhesive composition based on a polymer blend of syndiotactic polypropylene (SPP) and atactic poly-&agr;-olefin (APAO). The composition contains about 15%-80% by weight of the SPP/APAO blend, about 15%-65% by weight of a compatible tackifier, about 0%-35% by weight of a plasticizer, about 0%-3% by weight of a stabilizer, and optionally, about 0%-30% by weight of a wax. The adhesive composition may be used in a number of applications such as, for example, in disposable nonwoven hygienic articles, paper converting, flexible packaging, wood working, carton and case sealing, labeling and other assembly applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.