发明名称 CONNECTING STUFF FOR PAPER AND CARDBOARD
摘要 The material enables the production of high quality paper and cardboard with increased mechanical strength, improved finish and humidity resistance. The bonding material is a rosin-modified (in our case rosin saponified with sodium hydroxide) styrene-acrylate dispersion in the amount of 1-4% of the completely dry fibrous material. The ratio between the components of the bonding material-modified styrene-acrylate dispersion and rosin is within the ratio 5:1 - 1:1 or styrene-acrylate dispersion and saponified rosin 5:1 - 1:1.
申请公布号 BG48767(A1) 申请公布日期 1991.05.15
申请号 BG19890089337 申请日期 1989.07.25
申请人 VISSH KHIMIKOÙTEKHNOLOGICHESKI INSTITUT 发明人 BENCHEVA, SIJKA P.;IVANOVA, NADEZHDA M.;VALCHEV, VLADIMIR I.;IVANOV, GESHO M.;MASLAROVA, DIMITRINA P.
分类号 D21B1/16;(IPC1-7):D21B1/16 主分类号 D21B1/16
代理机构 代理人
主权项
地址