Crosslinked styrenic block copolymer
US11898030B2 · kind B2 · utility
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35Claims
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Key dates
| Filing date | May 28, 2018 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Elastomeric styrenic block copolymer (SBC) compositions comprise one or more SBCs and one or more polymers miscible with styrenic end blocks of the one or more SBCs, the block copolymer compositions being both both physically and chemically crosslinked, where the chemical crosslinking comprises covalent bonds between chains of SBC and the physical crosslinking comprises non-covalent interaction between styrenic end blocks of the one or more SBCs and the one or more polymers miscible with the styrenic end blocks. The block copolymer compositions are useful in forming immersion articles such as surgical gloves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.