Polyurethane elastomers having improved sag resistance

Details Polyurethane elastomers having improved sag resistance Polyurethane elastomers having improved sag resistance

1974-09-23

1976-09-07

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

428425, C08G 1838

Patent

active

039793648

ABSTRACT:
The use of small amounts of an amine-terminated polyether in the B-component of a two-component polyurethane composition results in the immediate thickening of the A and B-components upon mixing to provide an elastomer precursor with improved sag resistance without substantially affecting the workability of the mixed components or the properties of the cured elastomer. These elastomers are useful as sealants, caulks and surface coatings.

REFERENCES:
patent: 3666788 (1972-05-01), Rowton
patent: 3714127 (1973-01-01), Fabris et al.
patent: 3714128 (1973-01-01), Rowton et al.

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