Acid treated polyester polyurethane foam end wrap

Details Acid treated polyester polyurethane foam end wrap Acid treated polyester polyurethane foam end wrap

1976-03-26

1977-08-30

McNeill, G.E.

Toilet

Nail device

Compound tools

132 362R, A45D 700

Patent

active

040447820

ABSTRACT:
A superior end wrap comprising a particular type of open-celled polyurethane foam of specified porosity and thickness which foam has been treated with certain types of weak carboxylic acids. Also disclosed is a permanent waving process using said acid treated end wraps.

REFERENCES:
patent: 3345993 (1967-10-01), Haefele
patent: 3847165 (1974-11-01), Patel
patent: 3955586 (1976-05-01), Hartsough
patent: 3975515 (1976-08-01), Wajaruff

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