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A method for the preparation of an agent - to coarse-pore phenol resin hard foam having improved abrasion resistance
A method for the preparation of an agent - to coarse-pore phenol resin hard foam having improved abrasion resistance
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机译:制备具有改善的耐磨性的试剂-粗孔酚醛树脂硬质泡沫的方法
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摘要
Disclosed is a process for producing medium to coarse cell rigid phenolic resin foams having improved abrasion wear by adding to a mixture of phenol-formaldehyde resin, hardening and foaming agent, prior to foaming an additive dispersion consisting of a copolymer of fumaric acid diesters and of a vinyl aromatic compound such as styrene and optionally an olefin such as propylene.
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