Process for polyurethanes from ortho-ester-blocked polyols

Details Process for polyurethanes from ortho-ester-blocked polyols Process for polyurethanes from ortho-ester-blocked polyols

1978-06-12

1980-05-20

Cockeram, H. S.

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...

521121, 521124, 521127, 521129, 521174, 528 48, 528 53, 528 58, 528 73, 560 92, 560199, C08G 1840, C08G 1848, C07C 4332

Patent

active

042040515

ABSTRACT:
This invention relates to a process for the preparation of new organic compounds having blocked hydroxyl groups, which compounds are converted by the action of moisture into compounds having free hydroxyl groups, the preferred compounds obtainable by this process, and a process for the preparation of polyurethanes in which mixtures containing polyisocyanates and compounds which can be converted into polyols by hydrolysis are reacted with water.

REFERENCES:
patent: 3354100 (1967-11-01), Kuryla
patent: 3392153 (1968-07-01), Hostettler
patent: 3892685 (1975-07-01), Pusey
patent: 3975381 (1976-08-01), Kondo
patent: 4051081 (1977-09-01), Jabs

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