US3616143A - Bonded mat of strands of continuous glass fibers - Google Patents
Bonded mat of strands of continuous glass fibers Download PDFInfo
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- US3616143A US3616143A US3616143DA US3616143A US 3616143 A US3616143 A US 3616143A US 3616143D A US3616143D A US 3616143DA US 3616143 A US3616143 A US 3616143A
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/603—Including strand or fiber material precoated with other than free metal or alloy
- Y10T442/604—Strand or fiber material is glass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/699—Including particulate material other than strand or fiber material
Definitions
- Carr ABSTRACT A bonded mat of strands of continuous glass fibers with a primary continuous coating preferably of binder material on the fibers, to hold the fibers in strand form, and on the outer surface of the strands and a secondary resinous binder material in particulate form positioned over and fused to the primary coating on the outer surface of the strands and uniformly distributed throughout the mat, the primary coating on the outer surface of the strands and the particulate secondary binder serving together to hold the strands together as a mat.
- PATENTEUUCT 26 an w SHEET 10? 3 0 w u I y 3 INVENTOR ROLAND E. LANGLO/S BY QM m a.
- This invention relates to methods of applying binders to fibrous products and more particularly to methods of distributing and combining binders in such products.
- the invention relates to a process for bonding multifilament strands in a body of desired form, in which the filaments are of fibrous glass and are gathered into strands immediately subsequent to the filament forming operation, and the strands are then collected and arranged in a body.
- Mats of fibrous glass because of the inherent glass properties, especially those of strength and inertness, have many uses. They have been employed as filtering, acoustical and thermal insulating media. They also serve effectively for roofing sheets, nonwoven fabrics, and for reinforcing plastic products.
- the mats are composed of short fibers held together by a binder. In others the mats are bonded webs of chopped fibrous glass strands. Bundles or strands of continuous glass filaments have also been disposed in mat form. Strands of filaments have superior strength because of the continuous nature of the filaments and their concentrated linear association in strand form. Accordingly, fibrous glass strands are a most desirable constituent where strength is a prime consideration.
- a most common method employed has been to spray a water dispersion or suspension of the resinous material upon the fibrous glass immediately adjacent the fiber forming operation.
- This method provides a mat or other body, in which the fibers are massed, having fairly uniform binder distribution and good strength.
- an excessive amount of water is involved and it is subsequently necessary to drive off through heating a major part of this water. This heating requires considerable time and is otherwise costly from a production standpoint.
- Another former method has been to submit the mat offibers to a scattering of a powdered resinous material.
- This granular binder has been necessarily shakened down into the mat by vibration and later set by application of heat. ln some instances it is necessary to tear the mat apart to admix the resin particles.
- the mats so treated tend to have poorly bonded areas reducing tensile strength, and high ignition loses, indicating respectively nonuniform distribution and an excessive binder component.
- a broad object of this invention is to provide a method of producing mats having excellent integrity and strength.
- Another principal object is to provide a method by which uniform distribution of binder materials is secured in fibrous mats and other products.
- An additional important object is to provide a method of utilizing binder so effectively that a minimum quantity is required.
- binder More specifically it is an object of this invention to provide a process of applying binder which involves the primary application of a binder in liquid form and a secondary application of binder in a powdered state.
- Another object is a particularly unique method in which drying of the liquid content of a mass: of fibers is accomplished in a gradient manner and a powdered binder is applied thereafter.
- an object of this. invention is to provide a process for drawing continuous filaments of glass, applying a primary binder to the filaments, gathering the filaments into a plurality of strands, collecting the strands in a body of desired shape and curing the binder, the binder being of a nature and of sufficient quantity to not only integrate the individual strands but to also bond the strands together in the body.
- a further object of the invention is a process for bonding multifilament strands in which a binder in limited quantity is first applied longitudinally to the individual filaments and a second powdered binder also in limited quantity is subsequently applied in dispersed form tothe strands in which the filaments have been gathered.
- the liquid binder after drying may, for example, comprise between one and one and one half percent by weight of the fibrous body. This is in a low content binder range desirable to minimize the total binder when the liquid binder is combined with a powdered binder later distributed through the body or mat in which the strands are collected.
- liquid binder As applied by a belt applicator the liquid binder can be wiped on the descending strand-forming filaments in an even and metered manner. Good results have been attained with a liquid binder having about 5 percent by weight of a resin or other basic bonding ingredient dispersed in a water vehicle, the latter comprising practically all of the other percent of the composition with allowance for a comparatively small quantity of coupling and lubricating ingredients.
- the binder coating or film be uniform, continuous, and not excessive in quantity.
- the various lubricating, coupling and bonding functions of the binder are thus uniformly effective throughout the lengths of the continuous filaments and the strands in which they are combined.
- the proportion of the solid resin component left on the strands should advisably be increased to about 3 percent by weight of the strand assembly even for binder material of the highest effectiveness. IF or other less active materials the proportion may be 5 or more percent.
- the resinous powder dispersed or suspended in the liquid binder is preferably a polyester but may be other thermosetting resins such as melamines, acrylics, and epoxies, capable of being maintained in a stable suspension in a liquid vehicle, the latter preferably being water from both an economical standpoint and ease of processing.
- the powdered binder when applied dry to the mat or other body of strands, in combination with the previously applied liquid binder preferably amounts by weight to between 1% to 2 percent of the finished mat or body recommended maximum of 1% percent by weight of the liquid binder, as previously stated, when it is used in conjunction with the powdered binder, the total maximum content of the combined liquid binder and the powdered binder is accordingly only 3% percent by weight of the final fibrous product. When utilized alone for bonding the mat the powdered binder should constitute 3 to percent of the final product.
- a size applied to continuous filaments has never before served as an adhering agent to hold strands together in the body in which they may be finally assembled.
- a strand When collected in temporary package form, as on a bobbin, a strand must not adhere to adjacent turns but be free to be easily withdrawn therefrom for processing.
- the amount of the conventional size applied to filaments has usually amounted in dried form to less than 3 percent by weight of the finished product and in rare instances to as much as 5 percent. After the strand is plied, twisted and woven into conventional fabrics the size may be removed by washing or burning prior to dyeing of the fabric.
- the composition applied to the filaments is of a permanent nature, the presence of which is retained in the final product.
- binder in conventional use has had reference to a material introduced into a mass of fibrous glass, after the mass has been formed, to integrate the mass.
- size or composition applied to the continuous filaments in addition to its size functions, is uniquely utilized to contribute to or be entirely responsible for the bonding together of the filament strands in the mat or other body in which the strands are collected. Accordingly this size functions in the manner of a composition generally considered previously as a binder.
- binder For purposes of this application it is not intended to assign exact definitions to the terms size" and binder but to rely more on the properties specifically stated for the compositions involved. However, where binder is recited it should be taken as a material possessing bonding properties, not only to hold filaments of a strand together, but also, when present in sufiicient quantity and of the proper character, capable of bonding associated strands into an integrated body.
- the binder in powder form may be the same resin as that of the liquid binder or one compatible therewith. Polyesters, phenolics, acetates and acrylics are among those which have proved satisfactory.
- the gauge of the dry resinous particles may be between 40 and 200 mesh while 80 mesh size is preferred.
- the latter indicates a diameter of six hundred and ninety, hundredthousandths of an inch, which approximates the diameter of a strand composed of 60 filaments of nominal diameter of fifty, hundred-thousandths of an inch.
- the strands As the strands are deposited in mat formation they carry a liquid binder generally between 26 and 31 percent by weight. The liquid tends to gather at contact points between overlying strands, apparently due to the still fluid nature of the binder and the surface tension of the water vehicle.
- a main feature of this invention involves the development of a graduated moisture content down through the mat or other body of the strands prior to the scattering thereover and therethrough of a powdered binder.
- This moisture may be derived from a primary binder, a water size, or from water alone, the latter not being considered usually suitable.
- the method considered best for creating this progressively wetter condition from the top surface downwardly involves directing infrared heat against the upper side of the mat.
- the timing and intensity of this heat and positioning of its source, are set according to the porosity and thickness of the mat to effect the desired decreasing scale of drying down through the body.
- the minute, water-ladened webs of the primary liquid binder in the top surface stratum of the mat are majorly reduced by the evaporation of the water vehicle due to the direct heat received, while those in the bottom stratum remain virtually intact.
- the reduction of the webs intermediate the surface areas is progressively less in a downward direction. Accordingly, the top of the mat may be termed substantially dry while the bottom portion retains its original moisture.
- FIG. 1 is a front elevation of apparatus with which our invention may be practiced
- FIG. 2 is an enlarged plan view of the apparatus of FIG. 1, with an additional pair of pull wheels and associated equipment;
- FIG. 3 is a somewhat diagrammatic side elevation of a portion of a production line incorporating the apparatus of FIGS 1 and 2;
- FIG. 4 is an enlarged side elevational view of the drying heater and a powder applicator included in the production line ofFIG. 3;
- FIG. 5 is a greatly enlarged showing of several strands of a mat, the strands having a coating of a primary liquid binder with particles of a dry secondary binder on the strands located predominantly at the intersections of the strands;
- FIG. 6 depicts the strand portions of FIG. 5 and the fused condition of the binders thereon following the heat curing of the binders.
- FIGS. 1, 2 and 3 includes molten glass feeding bushings 21 and 22 depending from conventional glass melting tanks which are not illustrated.
- a second paired set of bushings 21a and 22a is depicted in FIGS. 2 and 3.
- the additional equipment of FIGS. 2 and 3 duplicates that of FIG. 1 and will not be described separately.
- the main components carry the same identifying numbers as the like parts of the apparatus of FIG. 1 but with the letter a following each number.
- Continuous filaments 23 are drawn from the minute streams of molten glass issuing from orifices of the bushings. It will be considered that a bushing with 352 orifices is here utilized and the filaments are drawn to an average diameter of fifty, hundred-thousandths of an inch.
- Size or binder is applied to the filaments as the latter pass over the travelings belts or aprons on the conventional size applicators 25.
- the size may merely be water to reduce friction between filaments as they are subsequently joined together in strand form and to supply moisture for cooperation in the distribution of dry binder particles, later added.
- a more complex size or binder is however desired to promote coherence of the filaments when combined as strands, and adherence of the strands of the filaments to the surfaces of the pulling wheels.
- the primary size or binder is applied as a continuous coating on the fibers and therethrough on the strands, and the secondary binderin particulate form is scattered through the mat in comparatively widely spaced relation, the coupling agent in the continuous coating is readily contacted by the resin, with which the mat may be later laminated. This is an important feature of the method combining a primary liquid size or binder with a later applied powder binder.
- a preferred form of primary binder is one retaining sufficient cohesive properties when cured to contribute to or, for some purposes, to completely bond the strands in the mat or other form in which they are collected on the conveyor or the receiving surface.
- such a binder has the dual purpose of bolding the filaments together as strands, and of bonding the strands into an integrated body.
- a commonly used lubricant component of the size may be omitted.
- the inclusion of such a lubricating material has been found necessary for improving the handleability of the strands where the strands go through subsequent operations such as plying and twisting, but it is not otherwise necessary, and in fact interferes with effective wetting of the strands by a plastic resin.
- the filaments from each bushing, after sizing, are grouped together to form a set of six strands individually segregated as they travel within six grooves over the respective gathering shoe 27.
- Each strand contains about 60 filaments.
- the division of the filaments into strands is here accomplished manually at the start of operations.
- the sets of strands 29 and 30 pass under the aligning shoes 31 which are grooved in the same manner as the gathering shoes 27.
- the aligning shoes aligning shoes may be given a slight traversing action. This slowly shifts the strand position on the pulling wheel, moving back and forth about once in 3 minutes.
- the primary size or binder When the primary size or binder is applied to the filaments in a quantity that creates a substantial coating on the strands, making them unhandleable in prior systems, they are here processed without difficult due to the fact that the strands are contacted by the pulling mechanism briefly on one side only, and if necessary supplementally by continuously washing the pull wheel surfaces with a water spray.
- Motors 37 and 38 respectively drive pull wheels 35 and 36.
- the strands carried by pull wheel 35 are released therefrom by the successive projection of fingers of oscillating spoke wheel 39 through slots in the peripheral surface of the pull wheel 35, while the fingers of spoke wheel 40 serve this purpose in connection with pull wheel 36.
- the strands are kinetically projccted in tangential paths from the pull wheels.
- each pull wheel is covered by an independently mounted, oscillatable backplate on which the associated spoke wheel is carried.
- Baclcplate d2 of the assembly including pull wheel 36 is arcuately oscillated through arm 43. The latter is driven by functioning of the fluid cylinder 52 which sets through the triangular link 65, which pivots upon bar 47 on the base 49.
- the piston rod 53 extending from the cylinder is joined to the triangular link 65 by linking rod 56.
- the base 49 is positioned on the platform 50 which also supports the pull wheels 35 and 36 and the equipment associated therewith. Platform 50 is suspended by angle iron hangers 51.
- the transverse movement of the triangular link 45 is transmitted to arm 57 to arcuately oscillate the spoke wheel 39 within the pull wheel 35.
- This oscillation is preferably in an arc of approximately 57. with the single means effecting the oscillation of both spoke wheels their action may be closely synchronized.
- the group of strands 53 thrown down by the pull wheel 35 and the group of strands 59 thrown down by the pull wheel 36, and the strands from any other pull wheels preceding this pair are accumulated in mat form 60 upon traveling conveyor 61, which is preferably of carbon steel chain construction.
- Side shields 62 and 63 define the edges of the mat 66 and prevent undesirable lateral overreaching of the strands. A 2-foot height for these shields is generally sufficient.
- strips 62s and 63s of open-cell foam or of other porous material, about one-half-inch thick are attached along the shields near the top edges thereof. Plain cotton rag material has been found to be satisfactory.
- Water nozzles 62" and 63:1 are arranged to feed water to the upper surface of the foam strips. The water seeps through the strips and is distributed uniformly to form a water film flowing down the surface of the shields. Tubing with a series of holes may be used instead of the nozzles 6211 and 63n to deliver the water and may be employed for directly forming the water films.
- the width of the conveyor covered by the mat in this case is 4% feet, but this may be varied through a wide range by changing the oscillating arc length of the spoke wheels and the distance of the pull wheels above the conveyor.
- the side shields 62 and 63 are mounted to adjust their spacing to match the width of the deposited material. Ordinarily the width utilized would be between extreme limits of2 and 9 feet.
- the strands With the high peripheral speed of the pull wheel, the strands are forcefully projected in straight tangential lines from the oscillating point of disengagement effected by the fingers of the spoke wheel.
- the kinetic energy the strands thus acquire carries them in straight courses to the region of the conveyor surface.
- they are self-positioning in lazy whirl formation with each strand assuming an individualistic pattern but disposed in intercngaging and interleaving relation with the other five strands of the set.
- the group of strands is thus deposited in a reciprocating strip disposed in a constant repeating pattern and with substantially stable dimensions.
- Strands of filamentized strands as well as the generally preferred integrated strands can be included in the product by having one or more of the wheels provided with a deflecting surface in the path of the projected strands As shown in FIGS. 3 and 41 the composite mat 70 formed on the conveyor 61 by the successive deposits of projected groups of strands, moves under the infrared heater 72 to the intermediate conveyor 74.
- the infrared rays developed by heater 72 have the greatest energy in wavelengths below 30 microns and accordingly penetrate and are not inclined to be reflected by most substances including clear glass.
- the heater 72 may include a ceramic honeycomb heated by a gas flame or have bulbs or nickle chrome rods electrically energized.
- the infrared rays emitted by such elements are apparently absorbed by the fibrous glass strands with little transmission or reflection of the rays by the strands. in fact certain frequency bands of these rays are entirely absorbed by glass.
- a descending cloud of dry binder particles 75 is produced in the chamber 76 above conveyor 74 by spray devices 78 and 79 or by other diffusing means. The particles gravitate downwardly into the horizontally traveling mat.
- the particles When the particles strike a strand in the mat they may bounce away or be held by the moisture of the primary water, size or binder. Such attachment most usually occurs when the particle hits adjacent to a point of crossover between overlying strands.
- the particle may be structurally caught between closely angled adjacent strands, held by the residual liquid in webs at such points, by liquid still present along a single strand, or be hung by surface moisture between closely positioned strands.
- the few particles not caught by the mat pass through the mesh openings of conveyor 74 into exhaust compartment 81.
- the mat 70 enters the binder curing oven 83 between upper and lower conveyor flights 85 and 87.
- the strands 90 are shown covered with the primary liquid sizing or binder 92 derived from the coating given the individual filaments 23 by the applicator 25.
- the minute webs which this liquid material is inclined to form when concentrated in the contact areas between two crossing strands are indicated at 94. These webs are greatly reduced in size and moisture along the strands minimized in the upper strata of the mat due the drying effect of the infrared heater 72.
- the particles 75 of dry binder dropping down through the mat 70 from the diffusing chamber 76 and striking against the strands, are more apt to remain at those spots and areas where there is greater moisture, the particles will likely lodge in the minute webs 94 of the primary coating 92 as illustrated, and of course are caught more easily in the larger of such webs deeper in the mat as the quantity of the binder particles becomes more sparse.
- the fragmented strands 90 of FIG. 5 are shown again in FIG. 6 after the resin binder component of the primary coating 92 and the particles of dry binder 75 have been fused and cured by oven 83. At the crossing points of the strands solid webs 98 are formed and along the strands may be occasional enlargements 99 of cured binder resulting from the prior presence of particles of dry binder.
- the bonding effect of the two binders is uniform and strong throughout the body of strands and is obtained with a very economical quantity of binder, and with a comparatively short drying and curing time due to the low moisture content compared with that generally required in other bonding processes.
- this preferred method of the invention prescribes the application of a primary binder dispersed in a liquid vehicle and the subsequent dispersement of dry powdered binder through the body formed by the strands, with both binders contributing to the bonding of the strands of the body
- the invention also encompasses the utility of a primary binder of a character and in a quantity sufficient to act alone, without the dry binder, to bond the filaments into strands and to be exuded to the surface of the strands to subsequently bond the strands and integrate the body in which they are assembled.
- Another alternate procedure of the invention is the use of water alone or of simple size with a water vehicle as a primary coating on the filaments in sufficient quantity to provide a moisture coating on the strands resulting from the gathering of the filaments.
- Water alone is usually undesirable as in most circumstances it is necessary to coat the filaments with some conventional residual substances, originally carried by the water or other vehicle, having properties such as cohesion, lubricity, adhesion, resin coupling or compatability, chemical resistance and finish.
- the surface moisture on the strands derived from such aqueous coating material is the attaching factor, after infrared gradient drying, for the distributed retention through the mat, or other body of the particles of dry bonding material.
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US81092169A | 1969-03-24 | 1969-03-24 |
Publications (1)
Publication Number | Publication Date |
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US3616143A true US3616143A (en) | 1971-10-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US3616143D Expired - Lifetime US3616143A (en) | 1969-03-24 | 1969-03-24 | Bonded mat of strands of continuous glass fibers |
Country Status (1)
Country | Link |
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US (1) | US3616143A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936558A (en) * | 1972-03-10 | 1976-02-03 | Owens-Corning Fiberglas Corporation | Fibrous bodies and method and apparatus for producing same |
US4284679A (en) * | 1978-11-06 | 1981-08-18 | Lockheed Corporation | Filled resin coated tape |
EP0428063A1 (en) * | 1989-11-13 | 1991-05-22 | Ppg Industries, Inc. | Programmably controlled fibre glass strand feeders and improved methods for making glass fibre mats |
US5028478A (en) * | 1986-12-25 | 1991-07-02 | Troy Industries, Inc. | Fiber reinforced composite materials having resin practice inter-layer zones |
US5143781A (en) * | 1990-12-17 | 1992-09-01 | Owens-Corning Fiberglas Corporation | Anisotropic continuous strand mats |
US6053276A (en) * | 1998-06-09 | 2000-04-25 | D'amico, Jr.; John | Muffler packing method with injection of cartrided continuous filament fiberglass |
US20060292948A1 (en) * | 2005-06-27 | 2006-12-28 | Geel Paul A | Fibrous veil impregnated with surface finish formulation |
US20070003703A1 (en) * | 2005-03-07 | 2007-01-04 | Seng Jocelyn M | Method and apparatus for applying liquid compositions to fiber webs |
US20070071946A1 (en) * | 2005-09-29 | 2007-03-29 | Northern Elastomeric, Inc. | Rubberized roof underlayment |
US20080014814A1 (en) * | 2006-07-13 | 2008-01-17 | Geel Paul A | Highly filled fibrous veil |
US20100119784A1 (en) * | 2005-09-29 | 2010-05-13 | Northern Elastomeric, Inc. | Rubberized roof underlayment |
US20100143684A1 (en) * | 2004-06-18 | 2010-06-10 | Owens Corning | Fibrous veil impregnated with surface finish formulation |
US20110104461A1 (en) * | 2009-09-28 | 2011-05-05 | Owens Corning Intellectual Capital, Llc | Underlayment with slip-resistant surface |
NL1037958C2 (en) * | 2010-05-12 | 2011-11-15 | Willem Frans Mast | A method and a system for producing a mat of fibrous material. |
-
1969
- 1969-03-24 US US3616143D patent/US3616143A/en not_active Expired - Lifetime
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936558A (en) * | 1972-03-10 | 1976-02-03 | Owens-Corning Fiberglas Corporation | Fibrous bodies and method and apparatus for producing same |
US4284679A (en) * | 1978-11-06 | 1981-08-18 | Lockheed Corporation | Filled resin coated tape |
US5028478A (en) * | 1986-12-25 | 1991-07-02 | Troy Industries, Inc. | Fiber reinforced composite materials having resin practice inter-layer zones |
EP0428063A1 (en) * | 1989-11-13 | 1991-05-22 | Ppg Industries, Inc. | Programmably controlled fibre glass strand feeders and improved methods for making glass fibre mats |
US5143781A (en) * | 1990-12-17 | 1992-09-01 | Owens-Corning Fiberglas Corporation | Anisotropic continuous strand mats |
US6053276A (en) * | 1998-06-09 | 2000-04-25 | D'amico, Jr.; John | Muffler packing method with injection of cartrided continuous filament fiberglass |
US20100143684A1 (en) * | 2004-06-18 | 2010-06-10 | Owens Corning | Fibrous veil impregnated with surface finish formulation |
US20090130416A1 (en) * | 2004-06-18 | 2009-05-21 | Geel Paul A | Highly Filled Fibrous Veil |
US20070003703A1 (en) * | 2005-03-07 | 2007-01-04 | Seng Jocelyn M | Method and apparatus for applying liquid compositions to fiber webs |
US20060292948A1 (en) * | 2005-06-27 | 2006-12-28 | Geel Paul A | Fibrous veil impregnated with surface finish formulation |
US20070071946A1 (en) * | 2005-09-29 | 2007-03-29 | Northern Elastomeric, Inc. | Rubberized roof underlayment |
US20100119784A1 (en) * | 2005-09-29 | 2010-05-13 | Northern Elastomeric, Inc. | Rubberized roof underlayment |
US9702148B2 (en) | 2005-09-29 | 2017-07-11 | Owens Corning Intellectual Capital, Llc | Rubberized roof underlayment |
US20080014814A1 (en) * | 2006-07-13 | 2008-01-17 | Geel Paul A | Highly filled fibrous veil |
US20110104461A1 (en) * | 2009-09-28 | 2011-05-05 | Owens Corning Intellectual Capital, Llc | Underlayment with slip-resistant surface |
US9493954B2 (en) | 2009-09-28 | 2016-11-15 | Owens Corning Intellectual Capital, Llc | Underlayment with slip-resistant surface |
NL1037958C2 (en) * | 2010-05-12 | 2011-11-15 | Willem Frans Mast | A method and a system for producing a mat of fibrous material. |
WO2011142658A3 (en) * | 2010-05-12 | 2011-12-29 | Willem Frans Van Der Mast | A method and a system for producing a mat of fibrous material |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WADE, WILLIAM, J., DELAWARE Free format text: SECURITY INTEREST;ASSIGNOR:OWENS-CORNING FIBERGLAS CORPORATION;REEL/FRAME:004652/0351 Effective date: 19861103 Owner name: WILMINGTON TRUST COMPANY, DELAWARE Free format text: SECURITY INTEREST;ASSIGNOR:OWENS-CORNING FIBERGLAS CORPORATION;REEL/FRAME:004652/0351 Effective date: 19861103 Owner name: WADE, WILLIAM, J., ONE RODNEY SQUARE NORTH, WILMIN Free format text: SECURITY INTEREST;ASSIGNOR:OWENS-CORNING FIBERGLAS CORPORATION;REEL/FRAME:004652/0351 Effective date: 19861103 Owner name: WILMINGTON TRUST COMPANY, ONE RODNEY SQUARE NORTH, Free format text: SECURITY INTEREST;ASSIGNOR:OWENS-CORNING FIBERGLAS CORPORATION;REEL/FRAME:004652/0351 Effective date: 19861103 |
|
AS | Assignment |
Owner name: OWENS-CORNING FIBERGLAS CORPORATION, A CORP. OF DE Free format text: TERMINATION OF SECURITY AGREEMENT RECORDED NOV. 13, 1986. REEL 4652 FRAMES 351-420;ASSIGNORS:WILMINGTON TRUST COMPANY, A DE. BANKING CORPORATION;WADE, WILLIAM J. (TRUSTEES);REEL/FRAME:004903/0501 Effective date: 19870730 Owner name: OWENS-CORNING FIBERGLAS CORPORATION, FIBERGLAS TOW Free format text: TERMINATION OF SECURITY AGREEMENT RECORDED NOV. 13, 1986. REEL 4652 FRAMES 351-420;ASSIGNORS:WILMINGTON TRUST COMPANY, A DE. BANKING CORPORATION;WADE, WILLIAM J. (TRUSTEES);REEL/FRAME:004903/0501 Effective date: 19870730 |