US1822636A - Insulating material - Google Patents

Description

Sept. 8, 1931. F. W INKI ELMANN Q 1,322,636

INSULATING MATERIAL Filed March 5, 1930 Patented Sept. 8, 1931 HENRY F. WINKELMANN, NEBRASKA CITY, NEBRASKA INSULATING MATERIAL Application filed March 5,

cold insulator and a sound deadener and it is more especially an improvement uponthe preparation covered by Patent 1,743,744 issued to me on January 14, 1930; It is particularly useful as a roof covering, a wall insulator and as a sound proofing material forfloors.

One of the objects is to provide a material which is extremely light, can be made at a low cost, and can bemolded into slabs of desired proportions ready to be placed in position for use.

-With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in certain novel features hereinafter more fully described and pointed out in, the claims it being understood that changes may be made Without departing from the spirit of the invention as claimed.

- covering of the same material.

In the accompanying drawing a portion of a slab embodying the present improvements has" been shown.

The composition used in making the insulating material consists of the following ingredients substantially in the proportions stated, namely,

- Per cent by volume Asphalt 30 Parafline oil 5 Flaxfibre 15 To the foregoing ingredients there is added of phlogopite which has been heated to approximately 2500 F. Phlogopite thus treated is extremely light and isformed of formed layer has cooled and reached its max- After' the 1930. Serial No. 433,396.

imum degree of hardness, it can be cut into slabs ready for use. If preferred the material when used for roofing purposes, etc., can be moulded in a single slab at the place where it is to be left.

In the drawing which illustrates a portion of a slab having the present improvements, the phlogopite has been shown at 1, the balance of the mixture at 2, and the layers of paper at 3.

The advantage resulting from the use of phlogopite is that the. composition is rendered fire-proof sound-proof, and moistureproof. This results in the formation of small air spaces in the material.

The asphalt when mixed with the parafiin oil produces a rubber-like pasty substance which can be formed easily into a slab. The

flax fiber constitutes an eflicient reinforcement while the paper serves to hold a slab in proper shape during the process of manufacture of a slab.

While this composition has been described an adhering mixture including the following ingredients substantially in the proportions stated, namely, asphalt 30%, parafiine oil 7 5%, flax fibre 15%, and flaked phlogopite 50 0.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

HENRY F. WINKELMANN.

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