Polyhydroxy polyether, process for its production, and its use

Details Polyhydroxy polyether, process for its production, and its use Polyhydroxy polyether, process for its production, and its use

1986-04-16

1987-06-23

Nielsen, Earl

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528104, 528110, C08G 5906, C08G 5902

Patent

active

046753737

ABSTRACT:
A substantially linear polyhydroxy polyether, which (1) is composed substantially of aromatic units and aliphatic units, the proportion of the aromatic units being 50 to 98 mole % based on the total amount of the aromatic units and the aliphatic units, (2) has an intrinsic viscosity, measured at 25.degree. C. in o-chlorophenol, of from 0.3 to 2 dl/g, and (3) has a glass transition, temperature of from 30.degree. to 120.degree. C. Two processes for preparing the polyhydroxy polyether are proposed. The polyhydroxy polyether is useful in applications which require gas-barrier property.

REFERENCES:
patent: 3567677 (1971-03-01), Webb
patent: 4419467 (1983-12-01), Wismer et al.
patent: 4608313 (1986-08-01), Hickner et al.

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