Arquivamento - Art. 36 §1° da LPI
#11.2
09/19/2000
RPI 1550
Application data
Number
PI9204958Type
Filing
Publication
The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 09/19/2000. We update with every new RPI gazette, published weekly.
Applicants
Miles Inc.
US
Inventors
C. B. (pessoa física)
DE
J. B. (pessoa física)
US
R. K. (pessoa física)
US
S. S. (pessoa física)
US
IPC Classification
Priority claims
US
805407 · 12/10/1991
Abstract
A presente invenção abrage um processo aperfeiçoado para a preparação de poliisocianato de polimetileno polifenila compreendendo a reação de fosgênio com polimewtilrnopolifenilpoliamina, o aperfeiçoamento consistindo no fato de que a polimetilenopolifenilpoliamina é condificada antes da fosgenação.
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