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·国外专利，国外新产品·防水屋面片材（日本公开持许ＪＰ９３—００４７４）该片材是在多孔片材和非多孔薄膜或片材间夹一多孔层制成的。ＰＥＴ纤维和人造丝无纺网膜夹在多孔聚乙烯片材和聚乙烯橡胶（ＴＰＯ８０３２）片材间，得到一层组合体，在７０℃下热处理１ｈ不起...
· Foreign Patents, New Products in Foreign Countries · Waterproof Roofing Sheet (JP93-00474) This sheet is made by laminating a porous layer between a porous sheet and a non-porous film or sheet. PET fiber and rayon non-woven mesh between the porous polyethylene sheet and polyethylene rubber (TPO8032) sheet, get a layer of combination, at 70 ℃ heat treatment 1h can not afford ...