PHENOLIC FOAM PRODUCTS AND METHOD OF PRODUCTION

摘要

There is provided a method of preparing foam insulation products as well as such products in the form of eg. insulation boards. A polymer is initially prefoamed (such as a phenolic polymer) and then placed in contact with a substrate surface where it then foams further. The substrate surface may be on one or both surfaces of the foam. In this way, good bonding to the substrate is achieved and excess material does not penetrate the substrate.