Condensation polymers of cyclic diols with aldehydes or acetals

Details Condensation polymers of cyclic diols with aldehydes or acetals Condensation polymers of cyclic diols with aldehydes or acetals

1983-08-26

1984-10-16

Phynes, Lucille M.

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

Synthetic resins

From aldehyde or derivative thereof as reactant

528129, 528137, 528248, 528249, 528265, C08G 400, C08G 810

Patent

active

044776527

ABSTRACT:
Condensation polymers prepared by reaction of a cyclic diol with a diether or aldehyde, or both, optionally with a branching agent, such as bis(4-hydroxycyclohexyl)propane with paraformaldehyde, or a diether such as methylene-dimethyl ether, or both, optionally with a branching agent such as a pentaethritol, in the presence of an acidic catalyst such as p-toluenesulfonic acid.

REFERENCES:
patent: 2968646 (1961-01-01), Caldwell et al.
patent: 3409581 (1968-11-01), Hagan, Jr.
patent: 3442864 (1969-05-01), Magee
patent: 3457228 (1969-07-01), Fischer et al.
patent: 4119612 (1978-10-01), Volkommer et al.
Hill et al., "Cyclic and Polymeric Formals", J. Am. Chem. S. 57, (1935), 925-928.
Jackson et al., "Process for Preparing High-Molecular-Weight Polyformals of Alicyclic Diols", Advances in Chemistry Series, No. 34 (1962), 200-207.

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