US2585806A

US2585806A - Elastic and fibrous building composition

Info

Publication number: US2585806A
Application number: US73011A
Authority: US
Inventors: Mack Charles
Original assignee: Standard Oil Development Co
Current assignee: Standard Oil Development Co
Priority date: 1946-10-09
Filing date: 1949-01-26
Publication date: 1952-02-12
Anticipated expiration: 1969-02-12

Description

Patented Feb. 12, 1952 ELASTIC AND FIBROUS BUILDING COMPOSITION Charles Mack, Sarnia, Ontario, Canada, assignor to Standard Oil Development Company, a corporation of Delaware No Drawing. Original application October 9,

1946, Serial No. 702,091. Divided and this application January 26, 1949, Serial No. 73,011

This invention relates to improvements in the production of building material especially building materials of high elasticity that may be used in the preparation of sheets, boards or shingles of any desired thickness, size or shape and relates to divisional subject matter of U. S. 702,091, filed October 9, 1946, now U. S. Patent No. 2,481,523.

Shingles or sheets used as weatherproof coverings are generally prepared by saturating a base of fibrous material with a binder and applying thereto a coating of plastic or mastic material at an elevated temperature to make the covering waterproof and as a wearing surface coating, adding such material as powdered slate, granulated mineral aggregate or other hard weather-impervious ingredients. The application of heat is generally required both in applying the bituminous material to the pre-saturated fibrous material and also when adding the mineral material to make the wearing surface more impervious to the weather. The shingles or sheets, when finally prepared, are either stiff and friable or soft and plastic. It is very desirable to prepare shingles or sheets that are elastic and readily regain their shape or form after being distorted by pressure when the pressure is released. Another undesirable feature is the efiect of temperature on the physical properties of the shingles or sheets.

Building materials such as shingles, floor coverings or sound-absorption boards which are flexible, highly elastic and resistant to the influence of temperature are prepared by combining fibrous material with a blend of an aluminum soap and a plasticizer.

The aluminum soap consists of the aluminum salt of naphthenic acids or of any fatty acid. The plasticizer which is added to improve the elasticity of the aluminum soap consists of residual or refined mineral oils, refined cylinder oils of 180-3000 Saybolt Universal viscosity at 210 F., reduced crude oil of 180-3000 Saybolt Universal viscosity at 210 F., reduced or oxidized asphalts of any softening point, linseed, rapeseed, cottonseed or tung oil, lard and fish oils, linear hydrocarbon polymers of molecular weight 5,000 to 20,000, or other substances having similar properties. The amount of plasticizer used is -100% based on the aluminum soap.

The mixture of aluminum soap and plasticizer can be prepared by fusing the ingredients together or as follows:

The naphthenic or fatty acids are mixed with the plasticizer, and the mixture is emulsified with water containing enough alkali to neutralize the acids. An aqueous solution of an inorganic aluminum salt such as aluminum chloride, sulfate or nitrate, is then mixed with the emulsion, and the resulting blend of aluminum soap and plastieizer is separated from the water washed and dried.

4 Claims. (Cl. 106-199) The properties of such products are as follows:

Example I 50% aluminum naphthenate, 50% residual oil 180 seconds Saybolt Universal at 210 F.:

Softening point (ring and ball) F 160 Penetration gms. 5 sec. at 77 F. 160 Penetration 100 gms. 5 sec. at 32 F.

Example II 50% aluminum soap from cod oil, 50% asphalt of 95 F. softening point:

Softening point (ring and ball) F 195 Penetration 100 gms. 5 sec. at 77 F. 60 Penetration 100 gms. 5 sec. at 32 F. 32

The building materials can be produced by saturating roofing felt or similar fibrous materials with 10 to 90% of a blend of aluminum soap and an organic plasticizer, or they can be produced in situ as follows:

Wood pulp, paper pulp, cotton or other fibrous materials or their mixture are dispersed in an emulsion prepared from the fatty acid, plasticizer and lye as described above. After coagulation with a sufficient quantity of aluminum sulphate solution, the resulting mixture of fibers, aluminum soap and plasticizer is fed through the rollers of a paper machine to squeeze out the water. Finally the resulting sheet is dried between hot rollers.

What is claimed is:

1. A flexible and elastic building composition comprising essentially a fibrous material bonded with 10% to 90% of a blend having a softening point of at least F. and comprising an aluminum soap of a fatty acid and an oil having a viscosity in the range from about to 3,000 Saybolt seconds at 210 F., said blend containing 10% to 100% of the said oil based on the aluminum soap.

2. The composition of claim 1 in which the said oil is selected from the class consisting of fish oil and vegetable oils.

3. The composition of claim 1 in which the said oil is a linear hydrocarbon polymer.

4. The composition of claim 1 in which the said oil is a petroleum oil.

CHARLES MACK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 577,135 Holmes Feb. 16, 1897 1,764,837 Hodson et al June 17, 1930 2,028,155 Hodson Jan. 21, 1936 FOREIGN PATENTS Number Country Date 127 Great Britain 1879

Claims

1. A FLEXIBLE AND ELASTIC BUILDING COMPOSITION COMPRISING ESSENTIALLY A FIBROUS MATERIAL BONDED WITH 10% TO 90% OF A BLEND HAVING A SOFTENING POINT OF AT LEAST 160* F. AND COMPRISING AN ALUMINUM SOAP OF A FATTY ACID AND AN OIL HAVING A VISCOSITY IN THE RANGE FROM ABOUT 180 TO 3,000 SAYBOLT SECONDS AT 210* F., SAID BLEND CONTAINING 10% TO 100% OF THE SAID OIL BASED ON THE ALUMINUM SOAP.