Sulfur-modified chloroprene rubber and method for producing same, sulfur-modified chloroprene rubber composition, vulcanizate, and molded article
US12269904B2 · kind B2 · utility
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Key dates
| Filing date | May 8, 2020 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Aug 1, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L11/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A sulfur-modified chloroprene rubber having a functional group A represented by specific General Formula (A) and positioned at a molecular terminal and a functional group B represented by specific General Formula (B) and positioned at a molecular terminal, in which a mass ratio B/A of a content of the functional group B with respect to a content of the functional group A is more than 0 and 6.00 or less, and a total amount of the functional group A and the functional group B is 0.10 to 0.60% by mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.