Injection-foamable styrenic monomer-diolefin copolymer, a method for the preparation thereof and use thereof
US10240019B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jan 16, 2014 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Apr 17, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2423/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A styrenic monomer-diolefin copolymer comprises polystyrenic monomer micro-blocks and polydiolefin micro-blocks, in which the content of styrenic monomer units is 10-80 wt %, the ratio of diolefin units of 1,2-structure is less than 30% in the total diolefin units, and the number-average molecular weight (Mn) of the copolymer is 25,000-500,000. The preparation methods and uses in foam products thereof are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.