Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1987-07-06
1989-07-25
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
28112, 156148, 156221, 181290, 181294, 264126, 264258, 264320, 264324, 428 345, 428 347, 428 362, 428 364, 428174, 428284, 428285, 428286, 428287, 428288, 428290, 428296, 428300, 428301, 428920, B32B 506, B32B 508, B32B 1712, E04B 176
Patent
active
048512745
ABSTRACT:
A moldable fibrous composite having thermal and acoustical insulating characteristics and methods of production thereof are provided. The composite structure comprises a substrate, a middle layer and a non-woven top layer. The substrate may be in the form of a fibrous web or, alternatively, a thermoplastic film. The middle layer comprises mineral fibers of a sufficiently short length to substantially preclude interlocking of any of the mineral fibers with other fibers of the structure and to provide the structure with desired flexibility. The mineral fibers are present in a quantity sufficient to impart desired heat and sound insulating properties to the structure. The top layer may be made of organic fibers or a substantially uniform mixture of organic and inorganic fibers. In making the invention composite structure, the middle layer and the top layer are introduced onto the substrate, respectively. The three layers are thereafter consolidated, such as through needle punching. In addition, binders may be added to the composite structures so as to impart desired properties such as improved moldability.
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Cannon James C.
Ozite Corporation
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