US3914498A - Resilient felted fibrous web - Google Patents
Resilient felted fibrous web Download PDFInfo
- Publication number
- US3914498A US3914498A US33180373A US3914498A US 3914498 A US3914498 A US 3914498A US 33180373 A US33180373 A US 33180373A US 3914498 A US3914498 A US 3914498A
- Authority
- US
- United States
- Prior art keywords
- web
- fibers
- resin
- resiliency
- binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims abstract description 51
- 239000011230 binding agent Substances 0.000 claims abstract description 30
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 23
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 229920003987 resole Polymers 0.000 claims description 19
- 229920000126 latex Polymers 0.000 claims description 10
- 239000004816 latex Substances 0.000 claims description 9
- 238000010790 dilution Methods 0.000 claims description 8
- 239000012895 dilution Substances 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 8
- 239000012260 resinous material Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 abstract description 46
- 239000011347 resin Substances 0.000 abstract description 46
- 239000005011 phenolic resin Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000007864 aqueous solution Substances 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 229920000742 Cotton Polymers 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- -1 BLI ION Chemical class 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 229920002522 Wood fibre Polymers 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- OKPNYGAWTYOBFZ-UHFFFAOYSA-N Pirenoxine Chemical group C12=NC3=CC=CC=C3OC2=CC(=O)C2=C1C(=O)C=C(C(=O)O)N2 OKPNYGAWTYOBFZ-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical class OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 229920000818 Catalin Polymers 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- XFQYJNINHLZMIU-UHFFFAOYSA-N cataline Natural products CN1CC(O)C2=CC(OC)=C(OC)C3=C2C1CC1=C3C=C(OC)C(OC)=C1 XFQYJNINHLZMIU-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
-
- 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.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2369—Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric
Definitions
- D04h 1/64- 13 321) 5/16 Pmduced fmm fibers such as celhlhsic fibers which [58] Field of Search 161 /170- 264/112 113 ahsmh aquwhs liquids when treated with aquews 264/128. solution of a phenolic resin which penetrates into the fibers to enhance the resiliency of the web when the [56] References Cited resin is subsequently cured and set.
- the web is preferably treated with a suitable conventional binder in ad- 2 737179 D S PATENTS 161/170 dition to the specified aqueous solution of phenolic a e 2,899,353 8/1959 Engel.... 162/165 resm 3,180,784 4/1965 Meiler 162/165 6Glauns, 1 Drawing Figure US. Patent Oct. 21, 1975 PRIOR ART INVENTOR.
- Felted fibrous webs of many kinds are known and are used for a variety of purposes, including upholstery padding, mattress padding and filling, package cushioning, other cushioning and padding applications, and thermal insulation.
- Such webs particularly in upholstery and mattress applications have been found advantageous because of theirability to prevent spring feel from being transmitted to the surface. This is an advantage over materials which have little compressive resistance and as such tend to bottom out thus permitting the feel of the underlying structure to pass through to the surface.
- foams such as polyurethane
- Still another object of the invention is to provide such enhanced resiliency without detrimentally affecting the compressive resiliency of such webs which has been one 'of their better properties.
- the single FIGURE shows one type of apparatus for producing felted fibrous webs.
- Phenol formaldehyde resins which are water soluble, fusible and capable of being converted to the thermoset stage upon application of heat have been used as binders in felted fibrous webs for many years. As is known, these resins are produced by condensing phenol and formaldehyde in the presence of an alkaline catalyst. When excess formaldehyde is used, the resin can be cured and set with heat to the thermoset stage.
- phenol is intended to include phenol, cresol, resorcinol and mixtures thereof which are conventionally condensed in alkaline medium with an excess of formaldehyde to form a heat curable phenolic resin. It is also known that in the course of the condensation reaction.
- phenol alcohols and methylol phenols such as the mono, di and tri methylol phenols are formed and that upon further condensation the resinification proceeds in three stages from the A stage, resoles to the B stage resistols and finally to the C stage resites which are insoluble and infusible.
- the molecular weight of the resin increases and water solubility decreases.
- the molecular weight of the resin or its water solubility under stated conditions are generally used for identifying the point to which the condensation is to proceed within a stage for the desired resin characteristics for the particular application at hand.
- the phenol formaldehyde resins which have heretofore been used as a binder for felted fibrous webs are condensed to the stage where the molecularweight is so high that the resinous material will not remain in solution at infinite dilution with water at ordinary room temperatures and neutral pH of about 6.5 to 7.5. At this relatively advanced stage of condensation the resin forms a thin film, coating or size onthe surface of the individual fibers. It is necessary to form a resin film that remains on the surface of the individual fibers so that when the resin is cured it will bond the fibers together at the surface cross over points and form the structure of the web. Resiliency of the web structure formed with the phenol formaldehyde binder may be improved by incorporating other additives such as latex into the web structure.
- any of the known fibers used in the manufacture of felted fibrous webs capable of absorbing aqueous liquids such as the cellulosic wood and cotton fibers may be employed in accordance with the present invention to produce a web in conventional manner having a density of not over about 6 pounds per cubic foot and preferably from about 1.5 to 3.0 pounds per cubic foot.
- This provides a relatively open network structure suitable for use in cushioning and padding applications as distinguished from the so called hardboard products in which the webis compacted to a density of about 15 to 60 pounds per cubic foot or more to produce a rigid product with the strength required for use as structural elements in furniture or as wall partitions, etc.
- the resole phenol formaldehyde resin used in accordance with the present invention will have a relatively low molecular weight of about 125 to not over about 3,000.
- the amount of the specified water soluble resole resin used for enhancing resiliency of the web will not be over about 3.0
- the lower molecular weight resol resins of up to about 5 parts of resin solids by weight for each 100 parts by 1,000 may be used with particular advantage.
- One reweightof fiber and preferably the amount of resin is sole resin that gives particularly good results in accorless than that required to bond the fibers into the web dance with the present invention is sold by the Catalin structure.
- the water soluble re- Division of Ashland Oil Company under the trademark sole resin of the present invention is identified as a AROFENE 183. I penetrating resin" which was cured and set within the Various methods and apparatus are known'for profibers by the conventional application of heat.
- Such appa'raen two flat metal plates of 6 X 6 inches or larger at tus includes a chamber 50 positioned over a ti a rate of 2 inches per minute to one-third of its original ously moving conveyor 52. At one end of th h b measured height.
- the amount of pressure to compress 50 there is provided aduct 54, connected toadisperser the stack was measured in pounds and Converted to mechanism 56 of the hammermill type.
- the disperser Pounds P Square foot- 56 provides an air suspension of fibers in the duct 54.
- Adjacent the outlet 58 of the duct 54 are spray nozzles and was determined y immediately removing the load 66 which serve to spray liquid particles of binder and from the Stack after it had been compressed to other materials into the stream 64 to provide binder on third its height determining the compressive rests the fibers as they felt upon the screen 52 fomling the tahee after one y and Permitting the 'y of mat 70.
- the 'conveyer then conve th r 70 under the stack for 45 seconds.
- suitable felted fibrous webs with added applied the and multtPhed by binder may be produced which 45 In all nstances the samples are first conditioned to are then subsequently dried if necessary and heated to equlhbnum m constfntt temperature constant humld' activate and set the binder in conventional manner. It my room to humldlty and 70 is preferred, however, to use the apparatus shown in Set forth below m Table thedetalls of compost the drawing and described above.
- the resole is not used for thestereh) means of the Spreyhezzles
- the bers are saturated with the resinous solution.
- latex emulsion solil under the tra Starch and Chemical Corporation
- Example 15 the fibers in Example 15 were pre-treated with the penetrating resin and then dried. These pre-treated fibers were then introduced by means of the dispersed mechanism 56 into the chamber 50 and the binder was applied by the spray nozzle 66 as in the previous examples. The mat was then pressed with the rollers 72 and dried in the oven 74.
- Example 16 without the penetrating resin.
- a pre-treated fiber that is treated before being formed into the blanket
- the loftiness of the blanket is enhanced as shown above by comparison of the thickness of Examples l5 and 16.
- the pretreated fiber tended to be softer or less dense and loftier. While this tended somewhat to be the case even when the penetrating resin was introduced with the binder, the increased loftiness and softness was much more pronounced when the fibers were first treated with the penetrating resin and then formed into the blanket with the binder.
- binders for such blankets.
Abstract
Description
Claims (6)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33180373 US3914498A (en) | 1971-03-01 | 1973-02-12 | Resilient felted fibrous web |
GB4013273A GB1402800A (en) | 1973-02-12 | 1973-08-24 | Resilient felted fibrous web |
CA180,797A CA985023A (en) | 1973-02-12 | 1973-09-11 | Resilient felted fibrous web |
DE19732347725 DE2347725C3 (en) | 1973-02-12 | 1973-09-21 | Process for the production of a voluminous cellulose fiber nonwoven fabric of increased elasticity |
DE7334348U DE7334348U (en) | 1973-02-12 | 1973-09-21 | WEB OF ABSORBENT FIBERS |
IT52740/73A IT996201B (en) | 1973-02-12 | 1973-09-25 | IMPROVEMENT IN COHESIUM BORN FIBROUS FELTED FABRICS FOR FILLING INSULATION AND SIMILAR FILLINGS AND MANUFACTURING PROCESS |
JP48121869A JPS49109680A (en) | 1973-02-12 | 1973-10-31 | |
FR7340359A FR2217458B1 (en) | 1973-02-12 | 1973-11-13 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11970271A | 1971-03-01 | 1971-03-01 | |
US33180373 US3914498A (en) | 1971-03-01 | 1973-02-12 | Resilient felted fibrous web |
GB4013273A GB1402800A (en) | 1973-02-12 | 1973-08-24 | Resilient felted fibrous web |
Publications (1)
Publication Number | Publication Date |
---|---|
US3914498A true US3914498A (en) | 1975-10-21 |
Family
ID=27259616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US33180373 Expired - Lifetime US3914498A (en) | 1971-03-01 | 1973-02-12 | Resilient felted fibrous web |
Country Status (1)
Country | Link |
---|---|
US (1) | US3914498A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4097644A (en) * | 1971-05-26 | 1978-06-27 | Isola Fabrikker A/S | Inorganic raw felt intended for the production of roof felt |
US4202852A (en) * | 1977-03-04 | 1980-05-13 | American Can Company | Process for producing colored nonwoven fibrous webs |
US4212216A (en) * | 1979-01-22 | 1980-07-15 | Ives Frank E | Deflector for attachment to fiber chopper nozzle |
US4668540A (en) * | 1982-01-29 | 1987-05-26 | The Goodyear Tire & Rubber Company | Belting and method of making same |
US4866991A (en) * | 1988-08-22 | 1989-09-19 | Tse Ming K | Stretchable fiber measurement station |
WO1990011184A1 (en) * | 1989-03-20 | 1990-10-04 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5064689A (en) * | 1989-03-20 | 1991-11-12 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5071675A (en) * | 1989-03-20 | 1991-12-10 | Weyerhaeuser Company | Method of applying liquid sizing of alkyl ketene dimer in ethanol to cellulose fibers entrained in a gas stream |
US5093058A (en) * | 1989-03-20 | 1992-03-03 | Medite Corporation | Apparatus and method of manufacturing synthetic boards |
US5154968A (en) * | 1990-12-05 | 1992-10-13 | Leucadia, Inc. | Molded dimensional product made from fibrous materials |
US5188785A (en) * | 1989-03-20 | 1993-02-23 | Medite Corporation | Apparatus and method of manufacturing synthetic boards including fire-retardant boards |
US5200267A (en) * | 1989-03-20 | 1993-04-06 | Medite Corporation | Fire-retardant synthretic board product |
US5230959A (en) * | 1989-03-20 | 1993-07-27 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5432000A (en) * | 1989-03-20 | 1995-07-11 | Weyerhaeuser Company | Binder coated discontinuous fibers with adhered particulate materials |
US5498478A (en) * | 1989-03-20 | 1996-03-12 | Weyerhaeuser Company | Polyethylene glycol as a binder material for fibers |
US5582644A (en) * | 1991-12-17 | 1996-12-10 | Weyerhaeuser Company | Hopper blender system and method for coating fibers |
US20070018167A1 (en) * | 1994-05-26 | 2007-01-25 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor integrated circuit and method of fabricating same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2737179A (en) * | 1951-06-08 | 1956-03-06 | Wood Conversion Co | Wettable fiber felt |
US2899353A (en) * | 1959-08-11 | Flexible paper web and process of | ||
US3180784A (en) * | 1960-04-07 | 1965-04-27 | Us Plywood Corp | Synthetic lignocellulose structural products |
US3181225A (en) * | 1963-04-08 | 1965-05-04 | Nestor B Knoepfler | Process of resin treating a cotton batting |
US3249667A (en) * | 1961-12-11 | 1966-05-03 | Weyerhaeuser Co | Method of providing surface treated consolidated fibrous articles |
-
1973
- 1973-02-12 US US33180373 patent/US3914498A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899353A (en) * | 1959-08-11 | Flexible paper web and process of | ||
US2737179A (en) * | 1951-06-08 | 1956-03-06 | Wood Conversion Co | Wettable fiber felt |
US3180784A (en) * | 1960-04-07 | 1965-04-27 | Us Plywood Corp | Synthetic lignocellulose structural products |
US3249667A (en) * | 1961-12-11 | 1966-05-03 | Weyerhaeuser Co | Method of providing surface treated consolidated fibrous articles |
US3181225A (en) * | 1963-04-08 | 1965-05-04 | Nestor B Knoepfler | Process of resin treating a cotton batting |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4097644A (en) * | 1971-05-26 | 1978-06-27 | Isola Fabrikker A/S | Inorganic raw felt intended for the production of roof felt |
US4202852A (en) * | 1977-03-04 | 1980-05-13 | American Can Company | Process for producing colored nonwoven fibrous webs |
US4212216A (en) * | 1979-01-22 | 1980-07-15 | Ives Frank E | Deflector for attachment to fiber chopper nozzle |
US4668540A (en) * | 1982-01-29 | 1987-05-26 | The Goodyear Tire & Rubber Company | Belting and method of making same |
US4866991A (en) * | 1988-08-22 | 1989-09-19 | Tse Ming K | Stretchable fiber measurement station |
US5498478A (en) * | 1989-03-20 | 1996-03-12 | Weyerhaeuser Company | Polyethylene glycol as a binder material for fibers |
US5200267A (en) * | 1989-03-20 | 1993-04-06 | Medite Corporation | Fire-retardant synthretic board product |
US5064689A (en) * | 1989-03-20 | 1991-11-12 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5071675A (en) * | 1989-03-20 | 1991-12-10 | Weyerhaeuser Company | Method of applying liquid sizing of alkyl ketene dimer in ethanol to cellulose fibers entrained in a gas stream |
US5093058A (en) * | 1989-03-20 | 1992-03-03 | Medite Corporation | Apparatus and method of manufacturing synthetic boards |
US6270893B1 (en) | 1989-03-20 | 2001-08-07 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5188785A (en) * | 1989-03-20 | 1993-02-23 | Medite Corporation | Apparatus and method of manufacturing synthetic boards including fire-retardant boards |
US5057166A (en) * | 1989-03-20 | 1991-10-15 | Weyerhaeuser Corporation | Method of treating discontinuous fibers |
US5230959A (en) * | 1989-03-20 | 1993-07-27 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5432000A (en) * | 1989-03-20 | 1995-07-11 | Weyerhaeuser Company | Binder coated discontinuous fibers with adhered particulate materials |
WO1990011184A1 (en) * | 1989-03-20 | 1990-10-04 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5516585A (en) * | 1989-03-20 | 1996-05-14 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5154968A (en) * | 1990-12-05 | 1992-10-13 | Leucadia, Inc. | Molded dimensional product made from fibrous materials |
US5582644A (en) * | 1991-12-17 | 1996-12-10 | Weyerhaeuser Company | Hopper blender system and method for coating fibers |
US20070018167A1 (en) * | 1994-05-26 | 2007-01-25 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor integrated circuit and method of fabricating same |
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