Polymer additive concentrate
US5075359A · kind A · utility
75Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1989 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Oct 16, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/226
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Polymer additive concentrates comprising (a) between about 10 and about 80 weight percent of a polymer additive; (b) between about 2 and about 50 weight percent of an absorbant material which is a consolidated blend of spurted polyolefin pulp treated with a wetting agent, and wood fluff pulp; and (c) between about 5 and about 80 weight percent polymer, possess unexpectedly higher additive loading as well as exhibiting admirable properties when employed in polymers which are extruded into clear films. In addition, a process for manufacturing such concentrates is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.