The present invention relates to a dimeric urethane compounds derived from monohydric alcohols, generally fatty alcohols, and a diisocyanate according to the following reaction scheme: ##STR1## wherein R.sub.1 is selected from the group of saturated, unsaturated or halogen substituted linear, cyclic or branch-chained hydrocarbons and R.sub.2 is a linear, cyclic or branch-chained alkyl or aminoalkyl group ranging from two to 200 carbon atoms, preferably two to 50 carbons, more preferably 6 to 36 carbons, even 6 to 24 carbons, said urethane compound being substantially free from terminal hydroxyl groups.

A invenção atual relaciona-se aos compostos dimeric de um urethane derivados dos álcoois monohydric, dos álcoois geralmente fatty, e de um diisocyanate de acordo com o seguinte esquema da reação: ## do ## STR1 wherein R.sub.1 é selecionado do grupo do saturated, os hidrocarbonetos lineares, cíclicos ou filial-acorrentados unsaturated ou halogênio substituídos e R.sub.2 são um alkyl ou um grupo linear, cíclico ou filial-acorrentado do aminoalkyl que varia de dois a 200 átomos de carbono, preferivelmente dois a 50 carbonos, mais preferivelmente 6 a 36 carbonos, mesmo 6 a 24 carbonos, composto dito do urethane que está substancialmente livre dos grupos terminais do hydroxyl.

 
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