High filling and high resilience soft foaming polyethylene material and preparation method thereof
US9828480B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2453/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a high filling and high resilience soft foaming polyethylene material, comprising the following parts of raw materials by weight: 15-20 parts polyethylene, 5-20 parts elastomers, 60-80 parts modified calcium carbonate, 1-10 parts chemical foaming agent, 0.5-1.5 parts crosslinking agent and 1-5 parts physical foaming agent. Also disclosed is a method of preparing high filling and high resilience soft foaming polyethylene material. The present invention can prepare a high calcium carbonate filling and high resilience soft foaming polyethylene material with calcium carbonate filler content as high as 55-75%, improving rigidity, hardness and compressive strength of the material while maintaining the elasticity of the foaming material, and reducing material density. The present invention has a simple process, greatly reduces costs and is economical and practical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.