Aromatic diamines

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...

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528 68, C08G 1832

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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.

REFERENCES:
patent: 4526905 (1985-07-01), Lucast et al.
patent: 4549007 (1985-10-01), Lin et al.
patent: 4611045 (1986-09-01), Ihrman
patent: 4816543 (1989-03-01), Burgoyne, Jr. et al.
patent: 4973760 (1990-11-01), Davis
patent: 4975516 (1990-12-01), Heile et al.

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