Ternary polymer mixture and its use
US5663229A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1994 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Mar 24, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyamide-containing polymer mixture having a melt viscosity of 1,000 to 1,400 Pa.multidot.s (at 270.degree. C. and under a load of 122.6 N) and includes the following components: (A) 50 to 75 parts by weight of polyamide 6, polyamide 6,6, polyamide 12 or mixtures thereof; (B) 15 to 30 parts by weight of a polyolefin having a density of 0.921 to 0.96 g/cm.sup.3 onto which an unsaturated carboxylic acid or an unsaturated carboxylic acid derivative has been grafted, the degree of grafting being between 0.01 and 1 weight percent, with respect to the total weigh of grafted and ungrafted polyolefin; (C) 10 to 20 parts by weight of a grafted polyolefin elastomer including at least ethylene and propylene units; (D) Additives selected from the group including stabilizers, anti-friction agents and fillers, with the sum of the parts by weight of components (A) to (D) being 100, and the mixture being produced by mixing components (A), (B) and (D) or (A), (B), (C) and (D) and extruding them at 150 to 300 rpm. The invention further relates to a shaped object that can be produced by means of injection molding, extruding, coextruding, blow molding or reshaping with the use of said polymer mixtu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.