ES321573A3 - Procedure for the obtaining of a polyurethane reaction product. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the obtaining of a polyurethane reaction product. (Machine-translation by Google Translate, not legally binding)
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La Seda de Barcelona SA
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La Seda de Barcelona SA
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Priority to ES0321573ApriorityCriticalpatent/ES321573A3/en
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Process for obtaining a polyurethane reaction product characterized by mixing in the liquid state (1) a polyether glycol polymer terminated in hydroxyl, of molecular weight of at least 600, obtained by condensation of an alkylene oxide of 2 to 4 carbon atoms at least 20% of whose alkylene oxide has more than 2 carbon atoms, with 0.01 to 10 mols%, on the alkylene oxide, of a polyhydric alcohol of less than 7 carbon atoms and with 3 to 6 groups primary hydroxyl, and (2), a molar amount of an organic diisocyanate at least equal to said polyether glycol; reacting the mixture until a second polymer with a chain length substantially greater than that of said polyether glycol polymer is formed. (Machine-translation by Google Translate, not legally binding)
ES0321573A1965-12-301965-12-30Procedure for the obtaining of a polyurethane reaction product. (Machine-translation by Google Translate, not legally binding)
ExpiredES321573A3
(en)