Bicyclo[2.2.1]heptane dicarboxylate salts as polyolefin nucleators
US6465551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Mar 24, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compounds and compositions comprising specific metal salts of bicyclo[2.2.1 ]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.