Oligomeric formal diols of poly(tetramethylene ether) glycol and

Details Oligomeric formal diols of poly(tetramethylene ether) glycol and Oligomeric formal diols of poly(tetramethylene ether) glycol and

1981-11-06

1982-10-19

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521164, 528 60, 528 61, 528 62, 528 63, 528 64, 528 65, 528 73, 528 76, C08G 1814

Patent

active

043551190

ABSTRACT:
Oligomeric formal diols are prepared by coupling segments of PTMEG, each having a molecular weight of 1000-3000, with formaldehyde. The formal diols are useful in preparing polyurethanes.

REFERENCES:
patent: 2929800 (1960-03-01), Hill
patent: 2961428 (1960-11-01), Muller et al.
patent: 3959227 (1976-05-01), Chang et al.
Schonfeld, Journal of Polymer Science, vol. 59, pp. 87-92 (1962).

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