Thermoplastic composition containing a mold release agent which is based on cured vegetable esters
US8901221B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2008 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a thermoplastic composition containing a) a thermoplastic polymer, b) a mold release agent, and c) optionally further additives, wherein the mold release agent contains a hydroxycarboxylic acid; an ester of a hydroxycarboxylic acid or a derivative of a hydroxycarboxylic acid, and one or more of an alcohol having one or more hydroxyl groups, or a compound having one or more epoxide groups, or a compound having one or more keto groups, or a mixture of a hydroxycarboxylic acid and the ester of a hydroxycarboxylic acid or a derivative of a hydroxycarboxylic acid and one or more of an alcohol having one or more hydroxyl groups or a compound having one or more epoxide groups or a compound having one or more keto groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.