Homopolypropylene resin for non-woven fabric and method for preparing the same
US11111323B2 · kind B2 · utility
0Cited by
8References
18Claims
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Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Dec 13, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to homopolypropylene resin for non-woven fabric, and according to the present invention, by optimizing tacticity to 80% to 90%, having narrow molecular weight distribution of 2.4 or less, and fulfilling melt index of 20 g/10 min to 30 g/10 min, melting point of 145° C. or less, and residual stress rate of 0.05% or less, thereby optimizing modulus, high strength non-woven fabric that is softer than the existing products, and is not easily torn due to high tenacity, can be prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.