Process for preparing products containing polymer chains having

Details Process for preparing products containing polymer chains having Process for preparing products containing polymer chains having

1981-03-23

1982-12-07

Hamrock, William F.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524398, 524399, 525366, 525370, C08F 844

Patent

active

043628370

ABSTRACT:
Viscous, homogeneous and thermoreversible gels containing polymer chains are obtained by a process in which a solution of a prepolymer or polymer which contains at least one free acid group at each chain end in a non polar solvent selected among the aliphatic, alicyclic and aromatic hydrocarbons having a dielectric constant of less than about 3 is reacted at room temperature with a stoechiometric amount, based on the acid group content of the polymer, of a metal aliphatic alkoxide so as to neutralize all the free acid groups and a sufficient amount of the non polar solvent is distilled for removing, in a substantially quantitative manner, the aliphatic alcohol formed by said reaction.

REFERENCES:
patent: 3632546 (1972-01-01), Haung et al.
patent: 3802912 (1974-04-01), Otocka
patent: 4012567 (1977-03-01), Loveless
patent: 4172820 (1979-10-01), Lundberg
patent: 4292231 (1981-09-01), Gabriel et al.

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