Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1990-10-03
1991-11-12
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 68, C08G 1832
Patent
active
050649272
ABSTRACT:
Novel aromatic diamines which are useful as chain extenders for urethane and urea polymers are compounds corresponding to the formula: ##STR1## wherein two of the R, R', and R" substituents are alkyl groups containing 1-6 carbons and the other substituent is a hydrocarbylthio group containing 1-6 carbons.
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patent: 4816543 (1989-03-01), Burgoyne, Jr. et al.
patent: 4973760 (1990-11-01), Davis
patent: 4975516 (1990-12-01), Heile et al.
Ethyl Corporation
Hammond Richard J.
Kight III John
Sergent Rabon
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