Back to results
US 5,955,177 AGranted
Fire barrier mat
Assignee3M Innovative Properties Company
InventorsStephen M. Sanocki, John L. Erickson
Life of this patent
Estimating the term…
Abstract
A flexible mat is provided having a nonwoven fabric having first and second major surfaces; and a coating of metal oxide on only a portion of at least one of the major surfaces.
Claims35
A flexible mat comprising:
- (a) a nonwoven fabric having first and second major surfaces;
- and
- (b) a metal oxide coating on only a portion of at least one of the major surfaces;
- wherein:
- (i) the fabric includes an amount of inorganic fibers at least about 5 millimeters in length, and
- (ii) the mat includes an amount and arrangement of the metal oxide coating,
- both of which are sufficient to retain the integrity of the mat when it is wrapped once around a 6 millimeter diameter rod and then unwrapped.
4 more elements
A flexible mat comprising:
- (a) a nonwoven fabric having an organic binder therein, and first and second major surfaces;
- and
- (b) a metal oxide coating on only a portion of at least one of the major surfaces;
- wherein:
- (i) the fabric includes an amount of inorganic fibers at least about 5 millimeters in length, and
- (ii) the mat includes an amount and arrangement of the metal oxide coating,
- both of which are sufficient to retain the integrity of the mat when it is wrapped once around a 6 millimeter diameter rod and then unwrapped.
4 more elements
A flexible mat comprising:
- (a) a nonwoven fabric comprising inorganic fibers and having first and second major surfaces, wherein at least about 10% by weight of the inorganic fibers are at least about 5 millimeters in length;
- and
- (b) a metal oxide coating on at least one of the major surfaces, the coating covering about 5% to about 25% of the total surface area of the major surface having the metal oxide coating thereon;
- wherein the mat retains its integrity when it is wrapped once around a 6 millimeter diameter rod and then unwrapped.
1 more element
A method of making a flexible mat, the method comprising:
- (a) providing a nonwoven fabric having first and second major surfaces;
- and
- (b) depositing a metal oxide source on the nonwoven fabric to provide a metal oxide coating on only a portion of at least one of the major surfaces;
- wherein:
- (i) the fabric includes an amount of inorganic fibers at least about 5 millimeters in length, and
- (ii) the mat includes an amount and arrangement of the metal oxide coating,
- both of which are sufficient to retain the integrity of the mat when it is wrapped once around a 6 millimeter diameter rod and then unwrapped.
4 more elements
Dependencies are inferred from the claim text.