Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-06-29
1989-03-14
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525481, 528 99, C08G 5962
Patent
active
048125385
ABSTRACT:
Compounds of formula I or II ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen, alkyl, cyclohexyl, phenyl, benzyl or tolyl, or are a --CH.sub.2 --CHR.sup.3 --CH.sub.2 --S--CO--R.sup.4 radical, R.sup.3 is hydrogen or methyl, R.sup.4 is alkyl, cyclohexyl, phenyl, benzyl or tolyl, X is alkylene, --S--, --SO--, --SO.sub.2 -- or substituted alkylene, in which R.sup.5 and R.sup.6 are hydrogen or alkyl, and n is an integer from 1 to 10, can be used as latent hardeners for epoxy resins.
The compositions containing epoxy resins and these hardeners are particularly suitable for use as single component adhesive formulations. The cured products have good hot water resistance.
REFERENCES:
patent: 3310527 (1967-03-01), De Acetis et al.
patent: 3328353 (1967-06-01), Bremmer
patent: 3443012 (1969-05-01), Weil et al.
patent: 3630997 (1971-12-01), Craven
patent: 4136086 (1979-01-01), Baumann et al.
patent: 4340714 (1982-07-01), Schupp et al.
Lehmann Hans
Zahir Abdul-Cader
Ciba-Geigy Corporation
Hall Luther A. R.
Nielsen Earl
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