Coating material for coating layer of injection mold and method of manufacturing coating layer of injection mold
US11130877B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 5, 2018 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Dec 24, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a coating material for a coating layer of an injection mold, the coating material including 100 parts by weight of a resin composition and about 30 to 40 parts by weight of a curing agent. The resin composition includes an amount of about 40 to 50 wt % of a first acrylic resin, an amount of about 5 to 15 wt % of a second acrylic resin having a weight average molecular weight less than a weight average molecular weight of the first acrylic resin, an amount of about 10 to 15 wt % of a carbon component, an amount of about 0.5 to 2 wt % of a matting agent, an amount of about 0.1 to 0.3 wt % of a catalyst and an amount of about 20 to 35 wt % of a solvent, all the wt % are based on the total weight of the resin composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.