Carboxylic acid modified-nitrile based copolymer latex
US12173158B2 · kind B2 · utility
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Key dates
| Filing date | Feb 8, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Oct 25, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2313/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A carboxylic acid-modified nitrile-based copolymer latex includes a carboxylic acid-modified nitrile-based copolymer including: 65.5 wt % to 82.5 wt % of a conjugated diene-based monomer-derived unit, 15 wt % to 30 wt % of an ethylenic unsaturated nitrile-based monomer-derived unit, and 2.5 wt % to 4.5 wt % of an ethylenic unsaturated acid monomer-derived unit, wherein the carboxylic acid-modified nitrile-based copolymer latex satisfies General Formula 1: 1.0 mm2/s≤CV0≤3.0 mm2/s [General Formula 1]
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.