CA3199575C - Materiaux de construction et leurs procedes de preparation
- Google Patents
Materiaux de construction et leurs procedes de preparation
Info
Publication number
CA3199575C
CA3199575CCA3199575ACA3199575ACA3199575CCA 3199575 CCA3199575 CCA 3199575CCA 3199575 ACA3199575 ACA 3199575ACA 3199575 ACA3199575 ACA 3199575ACA 3199575 CCA3199575 CCA 3199575C
Authority
CA
Canada
Prior art keywords
building material
polymeric
less
cavities
foam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westlake Royal Roofing LLCfiledCriticalWestlake Royal Roofing LLC
Priority claimed from PCT/US2021/060529external-prioritypatent/WO2022109460A1/fr
Publication of CA3199575A1publicationCriticalpatent/CA3199575A1/fr
Application grantedgrantedCritical
Publication of CA3199575CpublicationCriticalpatent/CA3199575C/fr
L'invention concerne des matériaux de construction qui comprennent une structure telle qu'un support structural, la structure définissant une pluralité de cavités au moins partiellement remplies d'une mousse polymère. La mousse polymère peut comprendre une mousse de polyuréthane hydrophobe ayant une densité inférieure à 5 pcf et/ou la structure peut comprendre un polymère hydrophobe.
CA3199575A2020-11-232021-11-23Materiaux de construction et leurs procedes de preparation
ActiveCA3199575C
(fr)
Pressurized, blowing agent-containing isocyanate semiprepolymer mixtures based on lignin-polyether polyols and their use for producing polyurethane foams