US Patent 9067382 Thermal insulating structures

A subsea thermal insulating structure with a flexible inner tie coat which is the reaction product of a cold curing phenolic resin and a partial phosphate ester; a foam insulating layer which is the reaction produce of a cold cure phenolic syntactic resin and a partial phosphate ester; and an outer protective layer which is the reason product of a cold cure phenolic resin and a partial phosphate ester.