Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1978-09-11
1980-01-22
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
525507, 528118, 528 94, 528 34, 528407, C08G 5950
Patent
active
041851498
ABSTRACT:
A novel epoxy resin curing agent comprises oligomeric poly(ethylenepiperazine). The resins comprise a vicinal polyepoxide and a curing amount of oligomeric poly(ethylenepiperazine).
REFERENCES:
patent: 3575926 (1971-04-01), Joyce et al.
patent: 3639928 (1972-02-01), Bentley et al.
patent: 3839281 (1974-10-01), Dreher
patent: 3943104 (1976-03-01), Waddill
patent: 4110313 (1978-08-01), Schulze et al.
Moss Philip H.
Waddill Harold G.
Kulason Robert A.
Nielsen Earl A.
Priem Kenneth R.
Ries Carl G.
Texaco Development Corporation
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