Colorable non-sticky resin core-shell particles
US5585184A · kind A · utility
6Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A colorable resin particle having an outer shell of a non-sticky olefinic polymer having a flow index of less than 20 decigrams/minute and an inner core of at least 90 wt % of a sticky polymer, the resin particle being made in a gas phase fluidized bed reactor at or above the sticking temperature of the sticky polymer in the absence of an inert particulate material fluidization aid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.