Multilayer densified surface to improve air flow resistance and structural properties
First Claim
Patent Images
1. A thermoplastic blanket, comprising:
- a first layer of thermoplastic material including a first surface zone and a first base zone, said first surface zone being densified and having a density of between about 1.5 to about 30.0 pcf and a thickness of between about 0.01 to about 0.1 inches and said first base zone having a density of between about 0.5 to about 10.0 pcf and a thickness of between about 0.25 to about 4.0 inches; and
a second layer of thermoplastic material including a third surface zone and a second base zone, said third surface zone being densified and having a density of between about 1.5 to about 30.0 pcf and a thickness of between about 0.01 to about 0.1 inches and said second base zone having a density of between about 0.5 to about 10.0 pcf and a thickness of between about 0.25 to about 4.0 inches;
wherein said third surface zone abuts said first base zone.
2 Assignments
0 Petitions
Accused Products
Abstract
A thermoplastic blanket includes multiple layers of thermoplastic material. The first such layer has a first surface zone, a second, optional surface zone and a first base zone between the first and second surface zones. The second layer of thermoplastic material includes a third surface zone, a fourth optional surface zone and a second base zone between the third and fourth surface zones. At least one surface zone of each layer is densified to a density of between about 1.5 to about 30.0 pcf while each base zone has a density of between about 0.5 to about 10.0 pcf.
-
Citations
20 Claims
-
1. A thermoplastic blanket, comprising:
-
a first layer of thermoplastic material including a first surface zone and a first base zone, said first surface zone being densified and having a density of between about 1.5 to about 30.0 pcf and a thickness of between about 0.01 to about 0.1 inches and said first base zone having a density of between about 0.5 to about 10.0 pcf and a thickness of between about 0.25 to about 4.0 inches; and a second layer of thermoplastic material including a third surface zone and a second base zone, said third surface zone being densified and having a density of between about 1.5 to about 30.0 pcf and a thickness of between about 0.01 to about 0.1 inches and said second base zone having a density of between about 0.5 to about 10.0 pcf and a thickness of between about 0.25 to about 4.0 inches;
wherein said third surface zone abuts said first base zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification