Polyether polyurethane foam end wrap treated with buffer system

Details Polyether polyurethane foam end wrap treated with buffer system Polyether polyurethane foam end wrap treated with buffer system

1977-03-31

1978-12-19

McNeill, G.E.

Toilet

Nail device

Compound tools

424 70, A45D 700

Patent

active

041301218

ABSTRACT:
A superior permanent hair waving end wrap comprising a particular type of open-celled polyether polyurethane foam of specified porosity and thickness which foam has been treated with a buffer system of mono-basic orthophosphate salts in admixture with phosphoric acid. Also disclosed is a permanent hair waving process using said buffer system treated end wraps.

REFERENCES:
patent: 2633447 (1953-03-01), Head
patent: 2991790 (1961-07-01), Boncla
patent: 3345993 (1967-10-01), Haefele
patent: 3955586 (1976-05-01), Hartsough

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