PROCESSO PARA A FABRICACAO DE UMA RESINA NOVOLAK DE FENOL ALDEIDO MODIFICADA COM ZINCO,LAMA DE REVESTIMENTO AQUOSA E MATERIAL DE REGISTRO SENSIVEL A PRESSAO OU CALOR
申请公布号:BR7903382(A)
申请号:BR19797903382
申请日期:1979.05.30
申请公布日期:1979.12.11
发明人:BODMER J
分类号:C08G8/00;B41M5/155;C08G8/28;C09D161/04;(IPC1-7):C08G8/28;B41M5/12
主分类号:C08G8/00
摘要:Zinc-modified phenol-aldehyde novolak resins for use as a color-developing agent in pressure-sensitive record sheet material are made by reacting together, preferably by heating, particulate zinc oxide or carbonate, ammonium benzoate and a phenol-aldehyde novolak resin. The resulting modified resin has good color developing properties and is resistant to desensitization when coated on to paper and dried in contact with a heated drum.
FUEL SUPPLY DEVICE FOR STARTING PORTABLE SERVICE MACHINE ENGINE
FREMGANGSMAATE FOR SYNTETISERING AV MGO-AL2O3-SIO2-GLASS OG -KERAMISKE MATERIALER.
FREMGANGSMAATE FOR FREMSTILLING AV ET ANTITUMOR- OG ANTIBIOTISK KOMPLEKS.
ARTICLE SUITABLE FOR WIPING SURFACES
MET WATER VERDUNBARE LAKKEN, ALSMEDE GEVORMD VOORTBRENGSEL, DAT DAARMEE BEKLEED IS.
ELEKTRISCHE CONTACTPEN VOOR PRINTPLAAT.
STELSEL VOOR ONDERZOEK VAN DE WERKING VAN EEN KATHODISCHE BESCHERMINGSEENHEID.
Double coat-hanger for secure clothing display - has pivoting parts locking clothing between them