US3577312A - Felted fibrous web or batt - Google Patents
Felted fibrous web or batt Download PDFInfo
- Publication number
- US3577312A US3577312A US707147A US3577312DA US3577312A US 3577312 A US3577312 A US 3577312A US 707147 A US707147 A US 707147A US 3577312D A US3577312D A US 3577312DA US 3577312 A US3577312 A US 3577312A
- Authority
- US
- United States
- Prior art keywords
- fibers
- product
- resiliency
- batt
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/26—Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material, e.g. paper pulp
- D21H5/2607—Pretreatment and individualisation of the fibres, formation of the mixture fibres-gas and laying the fibres on a forming surface
- D21H5/2628—Formation of a product from several constituents, e.g. blends of various types of fibres, fillers and/or binders or formation from various sources and/or streams or fibres
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH
- D21H23/10—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH at least two kinds of compounds being added
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
Definitions
- a felted fibrous web or batt having enhanced resiliency is produced with from to 100% short fibers of chemically pulped wood.
- a resin binder is used which includes a cellulose reactive crosslinking reagent.
- Felted fibrous webs of many kinds are known and are used for a variety of purposes, including upholstery padding, mattress padding and filling, other cushioning and padding applications, and thermal insulation.
- the functional characteristics of the various webs or blankets known vary according to a number of variables, including the vtype ,and length of fiber, the binders used, and the method of production. It has long been understood, for example, that longer fibers such as the textile fibers (both synthetic and natural) generally produce Webs having kappreciably better resiliency when compressed than do similar webs made from shorter fibers such as the more common wood fibers and still much shorter chemically pulped wood fibers. Indeed, the chemically pulped wood fibers are generally so short, being about 1.5 mm. in length, that they are practically dust.
- products having the longer fibers display lower compressive resistance and, when used in p cushioning, tend to bottom-out so that the feel of the Vsubstructure passes through to the surface, thus permitting the substructure (such as springs) to be felt by those sitting on the cushioned product.
- short fibers such as the more common wood fibers and the still much shorter chemically pulped wood fibers generally improve the compressive resistance. Such short fibers, however, also decrease resiliency as indicated above.
- FIG. 1 shows one type of apparatus for producing felted webs
- FIG. 2 is a graph of different property values of various webs.
- FIG. 1 Said U.S. Pat. No. 3,010,161 discloses an apparatus similar to that shown in FIG 1.
- Such apparatus includes a chamber 50 positioned over a continuously moving conveyor 52.
- a duct 54 At one end of the chamber 50 there is provided a duct 54, connected to a disperser mechanism 56 of the hammermill type.
- the disperser 56 provides an air 4suspension of short fibers in the duct 54.
- the duct 54- is restricted at the point 58, where there is arranged a picker-roll 60 which serves to feed fibers (generally of the longer variety such as cotton fibers) from a supply ⁇ 62 into the stream of short fibers existing within the duct 54.
- the air stream having shorter fibers therein doffs the longer fibers from the teeth of the picker-roll 60y and produces an air suspension 64 containing both shorter fibers and longer fibers, all as described in said Pat. No. 3,010,161.
- Adjacent the outlet of the duct 54 are spray nozzles 66 which serve to spray liquid binder particles into the stream 64 to provide binder on the fibers as they settle upon the screen 52 forming the mat 70.
- the conveyor then conveys the mat 70 under suitable compression rolls 72 and into a dryer mechanism 74.
- conventional garnett mechanisms may be utilized to felt the web and may be provided with suitable spray nozzles for applying the binder as indicated in the above mentioned U.S. Pat. No. 3,181,225. It is, however, generally difiicult to handle the very short fibers of chemically pulped wood on such garnett machines. Other conventional apparatus used in the production of non-woven textiles may also be used.
- suitable felted fibrous webs with applied binder may be produced, which are then subsequently dried if necessary and heated to activate the binder.
- a resin binder formed from a composition in which at least one of the components is a cellulose reactive crosslinking reagent which not only reacts with the other component to form a resin but also reacts with the cellulose of the cotton fibers.
- binders include binders of which one component is ureaformaldehyde and the other component is a vinyl acetate copoly mer.
- Such resin binders may be formed from compositions of which one component is a methylated methylol melamine and the other component is a vinyl acrylic copolymer. While a binder is preferred that is formed from a composition of which one component is an imidazole and the other is a vinyl acrylic copolymer, still other compositions will serve, such as one in which one component is dimethylol ethyl carbamate and the other component is any one of a number of latices such as a vinyl acrylic copolymer, a styrene-butadiene copolymer, a vinyl acetate polymer, or mixtures thereof. As indicated, such binders used with cotton fibers to form a web or blanket have been previously disclosed in Pat. No. 3,181,- 225.
- the compressive resistance after one cycle was determined by stacking 6 x 6" samples to a height of about 3" and then accurately measuring the height of the stack. The stack was then compressed between two flat metal plates of 6" x 6" or larger at a rate of 2 per minute to 1/3 of its original measured height. The amount of pressure to compress the stack was measured in pounds and converted to pounds per square foot.
- the resiliency after one cycle is expressed in percent and was determined by immediately removing the load from the stack after it had been compressed to 1A; its height (in determining the compressive resistance after one cycle) and permitting the recovery of the stack for 45 seconds. After that time, the height of the stack was again measured and the resiliency after one cycle was determined n percent by dividing the recovered height by the original free height and multiplying by 100.
- the compressive resistance after 20 cycles was determined by repeating the compression and release cycle 20 times and measuring the pressure in pounds required on the 20th cycle to compress the stack to 1/a its original measured height and converting such pressure in pounds to pounds per square foot.
- the resiliency expressed in percent after 20 cycles was determined by removing the load from the stack immediately after the 2()th compression and permitting the stack to recover for 45 seconds. Again, the height was measured and divided by the original free height of the stack and multiplied by 100.
- the letter A represents the compressive resistance for the rst cycle
- the letter B represents the compessive resistance for the 20th cycle
- the letter C represents the resiliency after the first cycle
- the letter D represents the resiliency after the 20th cycle.
- EXAMPLE I A commercially available product was obtained which had been made in accordance with U.S. Pat. No. 3,181,- 225, from cotton textile waste bers and including some irst-cut kcotton linters.
- the product contained 20%
- the product was found to have a density of 2.3 pounds per cubic foot and a thickness of 0.702.
- the product was tested for the properties A, B, C, and D and the results are tabulated in Table I below and plotted in line l of FIG. 2.
- the numerals in the third column of Table I are the reference numerals in FIG. 2.
- a fibrous web was formed on apparatus such as that shown in FIG. 1 by felting from an air suspension of fibers a mat or web containing 30% (by weight of the total fibers) of cotton .fibers obtained from cotton textile Waste such as picker or ily.
- the mat also incorporated 70% (by weight of the total fibers) of chemically pulped wood iibers pulped by the sulphite process.
- the shorter iibers of chemically pulped wood bers were introduced from a disperser such as shown at 56 in ⁇ FIG. 1, and the longer cotton -bers were introduced with the picker-roll 60.
- the binder was sprayed by means of the nozzles 66 into the depositing fiber mixture in an amount to provide 20% by Weight of the final product as binder solids.
- the mat was then heated in oven 74 to dry the mat and activate the binder.
- 'If-he binder used was a twocomponent binder comprising an imidazole resin as one component and a self-reacting vinyl acrylic latex as the other component.
- the inal product was found to have a density of 2.26 pounds per cubic foot and a thickness of 0.873.
- the product was tested for the four product properties A, B, C, and D. The results are tabulated in Table II below and plotted graphically in line 20 of FIG. 2.
- a brous web was formed by felting in the same manner as
- the web or mat formed contained 100% (by weight of the total bers) of chemically pulped Wood libers pulped by the sulphite process. Since there were no long fibers used in this example, it was not necessary to use the feeding mechanism 60 shown in FIG. 1 and the ⁇ fibers could be dispersed directly into the chamber 50.
- the binder applied by the nozzles 66 was the same binder as applied in Example I'I above and was added in a quantity to provide 20% by weight of the iinal product as binder solids.
- the mat was then heated in oven 74 to dry the mat and activate the binder.
- the product was found to have a density of 2.7 pounds per cubic foot and a thickness of 0.64 The product was tested for the product properties A, B, C, and D. The results are tabulated in Table III below and plotted graphically in line 30 of FIG. 2.
- a iibrous web was formed on conventional textile equipment commonly used for non-woven fabrics.
- a mixture of (by weight of the total bers) of cotton waste Iiibers and 15% (by Weight of the total bers) of chemically pulped wood fibers pulped by the sulphite process was rst preblended with a precarder of conventional type.
- the mixture was then fed to a picker-roll from which it was doled into an air stream.
- the air suspension of bers was then felted onto a. condensing roll to provide a thin web.
- the web was hand sprayed with binder and laid up in laps to provide the nal product thickness.
- the lapped product was then heated in an oven to dry the mat and activate the binder.
- the binder used was a two component system of which one cornponent was a. methylated methylol melamine and the other component was a self-reacting vinyl acrylic latex. Binder was provided in an amou-nt to supply 12% of the final product Weight as binder solids. The final product was found to have a density of 2.5 pounds per cubic foot and a thickness ofY 0.423". The product was tested for the properties A and C. The results are tabulated in Table IV below and plotted in FIG. 2 as points 42 and 46. The product properties B and D were not determined.
- Example III illustrated in line 30, where all of the fibers are chemically pulped wood fibers, the compressive resistance is still further increased.
- the product of Example IV in which only of the fibers were chemically pulped wood fibers, also shows an increase in compressive resistance (property A) at 42 in FIG. 2 over the product of Example I (see point 12), in which there were no such fibers.
- the degree of increase in compressive resistance was not as great for the product of Example IV as for the products of 4Examples II and III, in which greater amounts of such short chemically pulped wood fibers were used.
- This increase in compressive resistance l(properties A and B) was to be expected, but not in the degree of increase demonstrated above.
- Short fibers and particularly the very short fibers of chemically pulped wood, are not considered to be as spring-like as longer fibers such as the cotton waste fibers used in Example I. In fact, such 'short fibers are considered by many authorities to be equivalent to dust and, as such, to act more like granular particlesthan likelfibers.
- a product comprising a batt of felted cellulosecontaining fibers, said batt including a resin binder formed from a composition at least one component of which is a cellulose reactive crosslinking reagent, said reagent having been reacted with the cellulose of ⁇ said fibers and with at least one other component of said binder, said batt being of a density suitable for cushioning material in furniture having a 1 cycle resiliency of at least about 90%, the improvement comprising from 10% to 100% by weight of said cellulose-containing fibers being chemically pulped wood fibers, whereby the compressive resistance of said batt is enhanced.
- a product comprising a batt of felted cellulosecontaining fibers, said batt being bound by a binder, said binder including a resin, said resin being formed from a composition one component of which is a cellulose reactive crosslinking reagent, said batt being of a density suitable for cushioning material in furniture, said cellulose-containing fibers including cotton fibers in an amount of from 10% to 90% by weight of the total cellulosecontaining fibers, said cellulose-containing fibers also including chemically pulped wood fibers in an amount of from 10% to 100% by weight of the total cellulose-containing fibers, and said batt having a 1 cycle resiliency of at least about 90%.
- a product comprising a batt of felted cellulosecontaining fibers, said 'batt including a resin binder formed from a composition at least one component of which is a cellulose reactive crosslinking reagent, said reagent having been reacted with thecellulose of said fibers and.
- said batt being of a density suitable for the cushioning material in furniture having a 1 cycle resiliency of at least about 90%, said cellulose-containing bers including cotton fibers in an amount of from 0% to 90% by weight of the total cellulose-containing fibers, the irnprovement comprising from 10% to 100% by weight of said cellulose-containing fibers being chemically pulped Wood fibers, whereby the compressive resistance of said batt is enhanced.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70714768A | 1968-02-21 | 1968-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3577312A true US3577312A (en) | 1971-05-04 |
Family
ID=24840530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US707147A Expired - Lifetime US3577312A (en) | 1968-02-21 | 1968-02-21 | Felted fibrous web or batt |
Country Status (7)
Country | Link |
---|---|
US (1) | US3577312A (en) |
BE (1) | BE728664A (en) |
DE (1) | DE1908539A1 (en) |
FR (1) | FR2002336A1 (en) |
GB (1) | GB1216812A (en) |
LU (1) | LU58031A1 (en) |
NL (1) | NL6902654A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3966858A (en) * | 1974-01-25 | 1976-06-29 | Union Carbide Corporation | Linear apparatus and method for high speed production of air-laid non-woven webs |
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 |
US5330828A (en) * | 1991-01-07 | 1994-07-19 | Conwed Fibers, A Division Of Leucadia Inc. | Wood fiber mat for soil applications |
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 |
US5516585A (en) * | 1989-03-20 | 1996-05-14 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5582644A (en) * | 1991-12-17 | 1996-12-10 | Weyerhaeuser Company | Hopper blender system and method for coating fibers |
WO1998027262A1 (en) * | 1996-12-18 | 1998-06-25 | Weyerhaeuser Company | Method and composition for increasing the strength of compositions containing high-bulk fibers |
US20030210606A1 (en) * | 2000-03-13 | 2003-11-13 | George Chase | Method and apparatus of mixing fibers |
WO2004061176A2 (en) * | 2002-12-26 | 2004-07-22 | Kimberly-Clark Worldwide, Inc. | Method for making fibrous web materials |
US20070292217A1 (en) * | 2004-11-17 | 2007-12-20 | Mat, Inc. | Corn stover blanket and method of making the same |
US8020342B2 (en) | 2006-02-10 | 2011-09-20 | Mat, Inc. | AG-wafer product and method of making same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU4040293A (en) * | 1992-04-16 | 1993-11-18 | Heraklith Baustoffe Aktiengesellschaft | Process for producing insulating boards |
-
1968
- 1968-02-21 US US707147A patent/US3577312A/en not_active Expired - Lifetime
-
1969
- 1969-02-19 LU LU58031D patent/LU58031A1/xx unknown
- 1969-02-19 BE BE728664D patent/BE728664A/xx unknown
- 1969-02-20 GB GB9320/69A patent/GB1216812A/en not_active Expired
- 1969-02-20 DE DE19691908539 patent/DE1908539A1/en active Pending
- 1969-02-20 FR FR6904339A patent/FR2002336A1/fr not_active Withdrawn
- 1969-02-20 NL NL6902654A patent/NL6902654A/xx unknown
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3966858A (en) * | 1974-01-25 | 1976-06-29 | Union Carbide Corporation | Linear apparatus and method for high speed production of air-laid non-woven webs |
US6270893B1 (en) | 1989-03-20 | 2001-08-07 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
WO1990011184A1 (en) * | 1989-03-20 | 1990-10-04 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5057166A (en) * | 1989-03-20 | 1991-10-15 | Weyerhaeuser Corporation | 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 |
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 |
US5516585A (en) * | 1989-03-20 | 1996-05-14 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5330828A (en) * | 1991-01-07 | 1994-07-19 | Conwed Fibers, A Division Of Leucadia Inc. | Wood fiber mat for soil applications |
US5484501A (en) * | 1991-01-07 | 1996-01-16 | Conwed Fibers, A Division Of Leucadia, Inc. | Method of manufacturing an improved wood fiber mat for soil applications |
US5582644A (en) * | 1991-12-17 | 1996-12-10 | Weyerhaeuser Company | Hopper blender system and method for coating fibers |
WO1998027262A1 (en) * | 1996-12-18 | 1998-06-25 | Weyerhaeuser Company | Method and composition for increasing the strength of compositions containing high-bulk fibers |
US20030210606A1 (en) * | 2000-03-13 | 2003-11-13 | George Chase | Method and apparatus of mixing fibers |
US7163334B2 (en) * | 2000-03-13 | 2007-01-16 | The University Of Akron | Method and apparatus for mixing fibers |
WO2004061176A2 (en) * | 2002-12-26 | 2004-07-22 | Kimberly-Clark Worldwide, Inc. | Method for making fibrous web materials |
US20040155383A1 (en) * | 2002-12-26 | 2004-08-12 | Kimberly-Clark Worldwide, Inc. | Method for making fibrous web materials |
WO2004061176A3 (en) * | 2002-12-26 | 2004-09-23 | Kimberly Clark Co | Method for making fibrous web materials |
US6939492B2 (en) | 2002-12-26 | 2005-09-06 | Kimberly-Clark Worldwide, Inc. | Method for making fibrous web materials |
US20070292217A1 (en) * | 2004-11-17 | 2007-12-20 | Mat, Inc. | Corn stover blanket and method of making the same |
US8020342B2 (en) | 2006-02-10 | 2011-09-20 | Mat, Inc. | AG-wafer product and method of making same |
Also Published As
Publication number | Publication date |
---|---|
BE728664A (en) | 1969-08-19 |
FR2002336A1 (en) | 1969-10-17 |
DE1908539A1 (en) | 1969-10-30 |
GB1216812A (en) | 1970-12-23 |
LU58031A1 (en) | 1969-06-03 |
NL6902654A (en) | 1969-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LEUCADIA, INC., A CORP. OF NEW YORK,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONWED CORPORATION, A CORP. OF DE.;REEL/FRAME:004660/0016 Effective date: 19861204 Owner name: LEUCADIA, INC., A CORP OF NY.,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONWED CORPORATION;REEL/FRAME:004655/0504 Effective date: 19861204 Owner name: LEUCADIA, INC., 315 PARK AVENUE SOUTH, NEW YORK, N Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONWED CORPORATION, A CORP. OF DE.;REEL/FRAME:004660/0016 Effective date: 19861204 Owner name: LEUCADIA, INC., 315 PARK AVENUE SOUTH, NEW YORK, N Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONWED CORPORATION;REEL/FRAME:004655/0504 Effective date: 19861204 |