Polyisocyanurate foam composites and their production and use
US10723855B2 · kind B2 · utility
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1References
13Claims
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Assignee
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Key dates
| Filing date | Dec 15, 2014 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Dec 15, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the production of a rigid PIR foam composite containing man-made vitreous fibres (MMVF), the method comprising: providing MMVF, wherein at least 50% of the fibres by weight have a length of less than 250 μm; providing a polyol component; mixing the MMVF and polyol component in a ratio such that the amount of MMVF is at least 10% by weight based on total weight of polyol component; emulsifying pentane with the mixture of polyol component and MMVF; inducing foam formation by addition of a further component which comprises isocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.