Reactive compatibilization of polyacetal and polypropylene blends
US5070144A · kind A · utility
1Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Dec 5, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A compatible polymer blend containing a polyacetal, a hydroxylated polyacetal, polypropylene, and an acid-grafted polyolefine such as a muconic acid-polypropylene graft copolymer. The polyacetal is preferably a polyoxymethylene polymer such as Celcon.RTM.. The preferred hydroxylated polyacetal is one having a structure very similar to the polyacetal. The invention also includes a process for forming a compatible blend containing polypropylene and polyacetal by melt mixing polypropylene and polyacetal with an acid grafted polyolefin and hydroxylated polyacetal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.