Mineral-filled nylon molding compositions exhibiting low creep
US4131591A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1977 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | Aug 29, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K13/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyamide molding compositions comprising a polyamide resin, about 5 to 40 percent by weight, based on the total weight of the compositions, of talc in the form of platy fine particles having a surface are of about at least about 7.sup.2 m /g; about 2 to 40 percent by weight, based on the total weight of the composition, of wollastonite; and about 5 to 25 percent by weight, based on the total weight of the composition, of fiber glass. Preferably, about 0.1 to 4 weight percent, based on the weight of the wollastonite, of a coupling agent is present. These molding compositions are capable of providing molded articles having a creep slope of .ltoreq.0.15 percent strain per log time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.