Polymers, their production and uses

Details Polymers, their production and uses Polymers, their production and uses

1990-10-19

1992-05-05

Schofer, Joseph L.

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...

524557, 525 57, 525 60, C08L 2904

Patent

active

051108593

ABSTRACT:
Novel polyvinyl alcohols include, in the polymeric backbone, vinyl units containing pendant hydrophobic groups. The polymers are made by hydrolysis of corresponding polyvinyl acylates under conditions are avoid hydrolysis of the pendant hydrophobic groups from the polymer. These groups are preferably bonded into the polymer as allyl ether units. The hydrophobic units act as internal plasticizers in films or other shaped articles formed from the polymers and, in particular, gives significant benefit in viscosity and other rheology characteristics of aqueous compositions formed from the polymer.

REFERENCES:
patent: 4618648 (1986-10-01), Marten
patent: 4675360 (1987-06-01), Marten

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