Controlling the rate of diamine curing agents in polyurethane ce

Details Controlling the rate of diamine curing agents in polyurethane ce Controlling the rate of diamine curing agents in polyurethane ce

1985-04-12

1985-11-19

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

427386, 427387, 4273881, 4273882, 428418, 524874, 525454, 528 61, 528 64, C08L 7506

Patent

active

045542996

ABSTRACT:
A method for preparing a polyurethane which has good long term flexibility, solvent resistance and resistance to hydrolysis, said method comprising mixing three components just prior to curing said components comprising a prepolymer solution, a cement solution and a crosslinking solution, said crosslinking solution comprising a solvent, an aromatic diamine and the ketimine of an aliphatic diamine.

REFERENCES:
patent: 3267078 (1966-08-01), Damusis
patent: 4247678 (1981-01-01), Chung
patent: 4496707 (1985-01-01), Liggett

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