Патент USA US2405423код для вставки
$05,423 W. F. HAYES v COMPOSITION PANEL BOARD Filed July 31, 1940 n, - BY ' INVENTQR. _ WILL/AM F. Patented Aug. 6, ‘1946 2,405,423 UNITED STATES PATENT OFFICE 2,405,423 COMPOSITION PANEL BOARD ‘ a William F. Hayes, Detroit, Mich. 7 Application July 31, 1940, Serial No. 348,875 3 Claims. (Cl. 154-44) 2 1 This invention relates to a novel and improved laminated ?ber board, and particularly pertains to ?ber board provided with a decorative face and having thermal insulating as well as sound dead ening qualities. The laminations are adhered with waterproof adhesive material, thereby seal the adjacent base sheet and showing the ad hesive; Fig. 2 is an enlarged cross-sectional view on line 2--2 of Fig. 1; ' Fig. 3 is a fragmentary perspective View of a trunk structure and its till showing a laminated ing the board against penetration of water and structure, embodying the invention, lining the trunk and its till; and moisture into the'interior structure between the Fig. 4 is a fragmentary perspective view of a exposed facing sheets. The face of one exposed lamination may be embossed with elevations and. 10 motor vehicle body, showing a laminated struc depressions or otherwise treated to provide a ?n ture, embodying the invention, covering the back ished decorative face, and the rough texture of the decorative lamination is preferably carried of the seat. ' Referring to the drawing in which like numer als are used to designate like parts, numeral I is through its thickness to the underside surface so that the adhesive therebeneath employed for se 15 a laminated ?ber board composed of base sheets 2 and 3 adhered together by a hardened water curing the decorative lamination may ?ll the de— proof coating ll, such as asphalt or the like, and a pressions and thereby preserve the elevations and decorative facing sheet 5 adhered to one of the depressions in the exposed side of the ?nishing base sheets by a hardened waterproof coatingli. lamination. The ?nishing sheet may be painted The base sheet 3 is preferably cellular and po on its exposed face in addition to the emboss 20 rous, typi?ed by some such material as felt or ments. The outer layer on the side opposite to loosely felted paper which is used as foundations the ?nish layer is of the character of felt and un in the manufacture of bituminized paper, fabrics, saturated to provide for insulation. It is prefer asphalt roo?ng, and the like. It may be of any ably indented to give increased qualities of in sulation. The core sheet or sheets are felt coated 25 desired thickness. Being cellular and porous it may be saturated with a hardening waterproof with bituminous or other suitable waterproof ad adhesive or left unsaturated to provide for in hesives. The adhesive coating next to the in sulation but in either event builds up a laminated dented felt which is on the face opposite to the composite structure of greater thickness with no decorative ?nished sheet also preferably ?lls the depressions, if the felt be indented, to preserve 30 increase in weight over a more densely felted sheet when sandwiched between facing sheets 2 the indented structure. and 5. The hardening saturant or coating water The invention is generally typi?ed by a lami proo?ng adhesive provides for -a substantial ri nated or composite structure comprising an em gidity to make the composite laminated sheet bossed ?nishing sheet of thin tough ?brous mate rial, such as kraft paper, and two or more founda-. more or less board-like in character although tion sheets. being su?iciently ?exible to be bent in applying The foundation sheets are cellular same around curved surfaces which are to be and porous to provide for thermal insulation, and covered. The exposed foundation sheet 2 may be the undermost foundation sheet which is the ex indented to provide elevations 1 and depressions posed face opposite to the finish layer may be in dented. The core foundation sheet or sheets be 40 8. The elevations in one side of the sheet are opposite to the depressions in the “other side of tween the facing sheets are saturated and coated the sheet, and the elevations and depressions are with a hardening waterproof adhesive to render formed in'the sheet while same is being molded ‘7 them substantially rigid and give a board-like character to the composite laminated structure. 45 so that they are permanent and will not be pressed back in place. ' While the composite laminated structure is sub Sheet 5 is of the character of a thin tough stantially rigid and board-like, it is suf?ciently paper, such as kraft, and is advantageously pro ?exible to be bent around corners and applied to vided with separate small elevations 9 and depres cover rounded surfaces. sions 10 generally referred to as indentations. For a better understanding of the invention 50 The indentations in one side are opposite to the reference may be ‘made to the accompanying elevations on the other side, and are molded in drawing in which: the sheet at the time it is formed on the felting Fig. 1 is a face view of a portion of a laminated machine. ' sheet, embodying the invention, having part of A ?nishing material H, such as Pyroxlyn or the decorative embossed sheet turned back from 55 the like, can be applied to the exposed face of 2,405,423 3 the embossed sheet. The Pyroxlyn not only pro vides a ?nished decorative side but protects the sheet against scu?ing or roughening of the ?bers. The coating is applied in a thin layer, conform 4 indented sheet. The fact, however, that the sat urated sheet is alternately laid with an unsatu rated sheet functions to break up the transmis sion of sound and prevents rumbling and vibra ing with the irregular surface texture of the in tion. dentations and elevations, and is relatively hard. While one embodiment has been described in If the sheet 3 be saturated it is preferably satu detail for showing a representative composition rated with a relatively hard saturant to rigidify board and some suggested uses, it is understood that there may be various changes without de the sheet. The rough texture of the facing sheet prefer 10 parting from the spirit of the invention. ably carries through its thickness to its under I claim: 1. A composite ?ber board comprising a plu surface, and the coating 6 employed to adhere the ?nish sheet is applied to conform to its rality of loosely felted ?brous sheets, including at undersurface and ?ll the indentations in order least one sheet which is saturated and at least one to permanently retain the indentations and ele 15 sheet which is not saturated with hardened ther vations in the ?nishing sheet and prevent them moplastic waterproo?ng material, adhered in from collapsing when the board is being handled superposed relation with a relatively hard ther or is in use. _ g moplastic adhesive material, and a facing sheet The composite laminated structure above de adhered to an impregnated loosely felted sheet scribed is adapted for many and various uses 20 by a relatively hard thermoplastic adhesive ma wherever wood, leather, composition board, and terial, said hard adhesive material associated with other ?nishing materials are used. It is partic-' the sheets rendering the laminated structure ularly adapted for lining the walls l2 of a trunk board-like in character. or the tills [3 thereof, coveringthe backs of the 2. A composite ?ber board comprising a plu front seats M of motor Vehicles or the interior rality of loosely felted ?brous sheets adhered in walls l5 of automobiles, particularly taxi-s. So, superposed relation with a relatively hard ther too, the composite board is suitable for lining the moplastic adhesive material, one or more of which trunk compartments, the dash, cab compart sheets are and one or more of which sheets are ments and the like in passenger and truck motor not saturated with a hard thermoplastic adhe vehicles. 30 sive material, and a facing sheet adhered to one One or more of the sheets 3 may be included of the saturated loosely felted sheets by a rela between the decorative ?nishing layer 5 and the tively hard thermoplastic adhesive material. other foundation layer 2. The’; sheet or sheets 3 3. A composite ?ber board comprising a plu~ being coated on both sides with a relatively hard rality of loosely felted ?brous sheets, including adhesive render same substantially rigid and 35 at least one sheet which is saturated and one board like, and even more so if also saturated with a relatively hard adhesive. A light weight, yet rigid, board is obtained. If sheet 2 is indented, it can be more dense and compact as the indentations would provide the sound and heat insulating character. If not indented, the sheet is‘ more loosely felted to pro~ vide numerous cells or pores throughout the felt structure. The composite structure is substantially rigid, sheet which is not saturated with hardened ther moplastic waterproo?ng material, adhered in superposed relation with a relatively hard ther moplastic adhesive material, and an indented facing sheet adhered to one of the loosely felted sheets by a relatively hard thermoplastic adhe sive material, said adhesive adjacent the indented sheet ?lling the indentations on the underside of the indented sheet to a level above the elevations between said indentations, thereby serving to pre? combines therein sound and heat absorbing quali serve the indentations on the exposed side of the ties. The saturated sheet to some extent absorbs heat, but not to the extent of the loosely felted or facing sheet. WILLIAM F. HAYES.