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Application filed by Ivan S Zarbov, Rumjana J TodorovafiledCriticalIvan S Zarbov
Priority to BG101375UpriorityCriticalpatent/BG522Y1/en
Publication of BG101375UpublicationCriticalpatent/BG101375U/en
Publication of BG522Y1publicationCriticalpatent/BG522Y1/en
Chemical And Physical Treatments For Wood And The Like
(AREA)
Abstract
The formulation is used in the manufacture of railwaysleepers, electric poles, road indicators, wooden blocks, etc.needed for civil engineering. It is applied by the Lowry method orby the single or double method of Ruping and contains thefollowing components, in wt.%: naphthaline from 8 to 18,naphthaline homologues from 12 to 29, fluorene or methylfluorene0.5-1.0, alkylbenzoles from 7 to 10 and hadrocarbon resin from 42to 60. The formulation is produced by heat polymerization at 140°Cof a fraction of heavy pyrolysis resin which is a by.product inthe petrochemical indystry.1 claim\!
BG101375U1997-04-011997-04-01Formulation for the impregnation of timber
BG522Y1
(en)