Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1984-01-11
1985-07-16
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
264 51, 2643281, 2643286, 2643288, 521160, 521163, 528 64, 528 67, 528 76, 528 83, C08G 1814
Patent
active
045297460
ABSTRACT:
This invention relates to alkylated vicinal toluenediamines and their use as chain extenders in the preparation of polyurethane elastomers.
REFERENCES:
patent: 4218543 (1980-08-01), Weber et al.
Kan Peter T.
Lightsey John W.
Markovs Robert A.
Ramlow Gerhard G.
BASF Wyandotte Corporation
Hedden David L.
Lisicki Norbert M.
Welsh Maurice J.
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