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公开(公告)号：US11999815B2
公开(公告)日：2024-06-04
申请号：US17414906
申请日：2020-01-15
IPC分类号： B32B25/16 , B63B25/16 , C08G18/08 , C08G18/42 , C08G18/76 , C08J5/04 , C08J9/00 , C08J9/04 , C08J9/12 , C08J9/14 , C08K5/00 , C08K5/521 , C08L75/06 , C08G101/00
CPC分类号： C08G18/14 , B63B25/16 , C08G18/4208 , C08J5/043 , C08J9/0085 , C08J9/125 , C08J9/141 , C08K5/0066 , C08K5/521 , C08G2101/00 , C08G2110/005 , C08G2330/00 , C08J2203/10 , C08J2203/14
摘要： The present invention relates to a preparation of a block of fiber-reinforced polyurethane/polyisocyanurate foam in which the expansion of the foam is constrained by the walls of a double belt laminator forming a tunnel, the block of fiber-reinforced polyurethane/polyisocyanurate foam being composed of cells storing a gas, advantageously having low thermal conductivity, and exhibiting a density of less than 50 kg·m−3 with a content of fibers Cf representing at least 4% by weight of the block of fiber-reinforced foam, in which the impregnation time of the fibers ti is less than the cream time tc of the polyurethane/polyisocyanurate foam.
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公开(公告)号：US20220064357A1
公开(公告)日：2022-03-03
申请号：US17414906
申请日：2020-01-15
IPC分类号： C08G18/08 , C08J5/04 , B63B25/16 , C08J9/00 , C08J9/12 , C08J9/14 , C08K5/00 , C08G18/42 , C08K5/521
摘要： The present invention relates to a preparation of a block of fiber-reinforced polyurethane/polyisocyanurate foam in which the expansion of the foam is constrained by the walls of a double belt laminator forming a tunnel, the block of fiber-reinforced polyurethane/polyisocyanurate foam being composed of cells storing a gas, advantageously having low thermal conductivity, and exhibiting a density of less than 50 kg.m−3 with a content of fibers Cf representing at least 4% by weight of the block of fiber-reinforced foam, in which the impregnation time of the fibers ti is less than the cream time tc of the polyurethane/polyisocyanurate foam.
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