公开(公告)号：US11999833B2

公开(公告)日：2024-06-04

申请号：US17511123

申请日：2021-10-26

Applicant: Holcim Technology Ltd.

Inventor： John Letts ,  Chunhua Yao ,  Michael Hubbard

IPC: C08J9/00 ,  B32B5/20 ,  B32B37/15 ,  C08G18/08 ,  C08G18/42 ,  C08G18/76 ,  C08J9/14

CPC classification number: C08J9/0023 ,  B32B5/20 ,  B32B37/15 ,  C08G18/14 ,  C08G18/42 ,  C08G18/7671 ,  C08J9/141 ,  C08J9/142 ,  C08J9/149 ,  B32B2266/0278 ,  B32B2266/08 ,  B32B2419/00 ,  C08J2201/022 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/052 ,  C08J2205/10 ,  C08J2207/00 ,  C08J2375/06

Abstract: A process for producing a polyurethane or polyisocyanurate construction board, the process comprising (i) providing an A-side reactant stream that includes an isocyanate-containing compound; (ii) providing a B-side reactant stream that includes a polyol, where the B-side reactant stream includes a blowing agent that includes a pentane and a blowing agent additive that has a Hansen Solubility Parameter (δt) that is greater than 17 MPa−0.5; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.