Asbestos-free composition for millboard for use at high temperat

Details Asbestos-free composition for millboard for use at high temperat Asbestos-free composition for millboard for use at high temperat

1980-06-26

1981-12-29

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 99, C04B 7353

Patent

active

043080707

ABSTRACT:
An asbestos-free millboard formulation is provided which includes from about 5 to 20% of a cellulosic fiber, from 40 to 15% barytes, from 10 to 50% cement and from 15 to 40% of an inorganic filler selected from the group consisting of talc, diatomaceous earth, silicates, carbonates and mixtures thereof. The formulation can be processed on conventional millboard manufacturing equipment.

REFERENCES:
patent: 3438853 (1969-04-01), Haines et al.
patent: 3841885 (1974-10-01), Jakel
patent: 4040851 (1977-08-01), Ziegler
patent: 4101335 (1978-07-01), Barrable

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