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Storage-stable epoxy B-stage resins

Aelony, David

Journal of applied polymer science, 1969-01, Vol.13 (1), p.227-232 [Periódico revisado por pares]

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Título:
Storage-stable epoxy B-stage resins
Autor: Aelony, David
É parte de: Journal of applied polymer science, 1969-01, Vol.13 (1), p.227-232
Notas: istex:0C1874CFBE7BB9F6825C80FDEA2607FEC46A73C0
ark:/67375/WNG-SKL1XG91-3
ArticleID:APP070130121
Descrição: N‐Substituted β‐aminopropionhydrazides, RNHC2h4CONHNH2, were prepared by the Michael addition of primary amines to acrylic esters. The adducts were converted to the corresponding hydrazides. The aminohydrazides react readily with terminal epoxides at moderate temperatures yeilding B‐stage resins of excellent storage stability. When powdered B‐stage resins are sprayed on hot metal (150‐230°C.), a smooth cross‐linked coating is formed in less than 3 min. The coatings have unusually high elasticity, they pass the Olson button test. For best performance the amine used should have the primary amino group attached to either a primary carbon atom or directly to an aromatic nucleus. Aminohydrazides with the following R. Groups have been prepared: methyl, n‐butyl, sec‐butyl, tert‐butyl, phenyl, cyclohexyl, benzyl, octyl, dodecyl, and octadecyl.
Editor: New York: Wiley Subscription Services, Inc., A Wiley Company
Idioma: Inglês

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