Process for the preparation of polyurethane elastomers using dio

Details Process for the preparation of polyurethane elastomers using dio Process for the preparation of polyurethane elastomers using dio

1984-01-11

1984-10-09

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521174, 528 73, C08G 1814

Patent

active

044762534

ABSTRACT:
Polyurethane elastomers are made by reacting organic polyisocyanates with compounds having at least two groups containing isocyanate-reactive hydrogen atoms and a molecular weight of from 400 to 10,000 and a 1,4-monoanhydro-tetritol in accordance with techniques known to those in the art. Known chain-lengthening agents, auxiliaries and additives may be included in the reaction mixture. The reaction mixtures employed in the process of the present invention have a longer pot life than prior art reaction mixtures. The elastomers produced by this process are shrink stable.

REFERENCES:
patent: 4383051 (1983-05-01), Meyborg et al.
J. Organic Chem., 26, 1673, (1961), F. H. Otey et al.
Nachr. Chem. Techn. Lab. 30, 206-206, (1982), by H. U. Woelk.
Kunststoff-Handbuch, vol. VII, Vieweg-Hochtlen, Carl Hanser-Verlag, Munich, 1966, p. 206.

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