NO143072B - INPUT CASE DEVICE FOR ADDING MASS TO A FORM - Google Patents

INPUT CASE DEVICE FOR ADDING MASS TO A FORM Download PDF

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Publication number
NO143072B
NO143072B NO4120/73A NO412073A NO143072B NO 143072 B NO143072 B NO 143072B NO 4120/73 A NO4120/73 A NO 4120/73A NO 412073 A NO412073 A NO 412073A NO 143072 B NO143072 B NO 143072B
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NO
Norway
Prior art keywords
methylcoumarin
polyamide
adding mass
case device
input case
Prior art date
Application number
NO4120/73A
Other languages
Norwegian (no)
Other versions
NO143072C (en
Inventor
Joseph Dixon Parker
Richard Earl Hergert
Arnold James Roerig
Original Assignee
Beloit Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beloit Corp filed Critical Beloit Corp
Publication of NO143072B publication Critical patent/NO143072B/en
Publication of NO143072C publication Critical patent/NO143072C/en

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/02Head boxes of Fourdrinier machines
    • D21F1/028Details of the nozzle section
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/02Head boxes of Fourdrinier machines

Landscapes

  • Paper (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Graft Or Block Polymers (AREA)
  • Discharge Heating (AREA)

Description

Fremgangsmåte til stabilisering av syntetiske polyamider. Process for stabilizing synthetic polyamides.

Ved fremstilling av tekstilmaterialer og In the manufacture of textile materials and

andre formede gjenstander fra polyamider på-virker utsettelse for varme og lys i mange tilfelle i en alvorlig grad fibrenes bruddfast-het og forlengelse, samt også farven av mange ferdige gjenstander. For å forbedre polyami-ders motstandsdyktighet mot denne avbyg-ning ved innvirkning av lys og varme, er der tidligere anvendt forskjellige midler for å other shaped objects from polyamides exposure to heat and light in many cases affects the breaking strength and elongation of the fibers to a serious extent, as well as the color of many finished objects. In order to improve the resistance of polyamides to this degradation when exposed to light and heat, various means have previously been used to

stabilisere polyamidene, slik at de forblir ufor-andret etter at de er utsatt for varme og lys eller andre innvirkninger som kan frembringe uønskede forandringer i deres egenskaper. stabilize the polyamides, so that they remain unchanged after they are exposed to heat and light or other influences that can produce unwanted changes in their properties.

Ved hjelp av foreliggende oppfinnelse By means of the present invention

skaffes der en fremgangsmåte til stabilisering av syntetiske lineære polyamider mot innvirkning av varme, lys, fuktighet og oxygen, ved tilsetning av stabiliseringsmidler til de polya-mid-dannende utgangsmaterialer, den polya-mid-dannende reaksjonsblanding eller den varme polyamidsmelte. a method for stabilizing synthetic linear polyamides against the effects of heat, light, moisture and oxygen is obtained there, by adding stabilizers to the polyamide-forming starting materials, the polyamide-forming reaction mixture or the hot polyamide melt.

Det karakteristiske hovedtrekk ved fremgangsmåten ifølge oppfinnelsen er at der som stabiliseringsmiddel anvendes et alkylaminsubstituert cumarin i en mengde fra 0,05 til 2 vektprosent av reaksjonskomponentene. The characteristic main feature of the method according to the invention is that an alkylamine-substituted coumarin is used as stabilizer in an amount of from 0.05 to 2% by weight of the reaction components.

Polyamider som med fordel kan stabili-seres ved fremgangsmåten ifølge foreliggende oppfinnelse, er beskrevet f.eks. i U.S. patent-skrifter nr. 2 071 250, 2 071 253 og 2 130 948. Spesielt kommer to typer polyamider i be-traktning, nemlig de som kan fåes fra poly-meriserbare monoaminomonocarboxylsyrer og deres amiddannede derivater, såsom f.eks. Polyamides which can advantageously be stabilized by the method according to the present invention are described, e.g. in the U.S. patent documents Nos. 2,071,250, 2,071,253 and 2,130,948. In particular, two types of polyamides come into consideration, namely those which can be obtained from polymerizable monoaminomonocarboxylic acids and their amide-formed derivatives, such as e.g.

caprolactam, og de som kan fåes ved omset-ning av egnede diaminer og egnede dicar- caprolactam, and those which can be obtained by the reaction of suitable diamines and suitable dicar-

boxylsyrer eller amid-dannende derivater av tobasiske dicarboxylsyrer. carboxylic acids or amide-forming derivatives of dibasic dicarboxylic acids.

Eksempler på alkylaminsubstituerte cu-mariner som kan anvendes ved fremgangsmåten ifølge oppfinnelsen, er 7-methylaminocumarin, 7-dimethylaminocumarin, 7-ethylaminocumarin, 7-diethylaminocumarin, 8-methylaminocumarin, 8-dimethylaminocumarin, 8-ethylaminocumarin, 8-diethylaminocumarin, 7-propylaminocumarin, 8-propylaminocumarin, 7-butylaminocumarin, 8-butylaminocumarin, 7-diisopropylaminocumarin, 6-methylaminocumarin og 6-diethylaminocumarin. Anvendbare er likeledes 7-methylamino-4-methylcumarin, 7-ethylamino-3-methylcumarin, 8-ethylamino-4-methyl-cumarin og 7-diethylamino-4-methylcumarin. Examples of alkylamine-substituted coumarins that can be used in the method according to the invention are 7-methylaminocoumarin, 7-dimethylaminocoumarin, 7-ethylaminocoumarin, 7-diethylaminocoumarin, 8-methylaminocoumarin, 8-dimethylaminocoumarin, 8-ethylaminocoumarin, 8-diethylaminocoumarin, 7-propylaminocoumarin , 8-propylaminocoumarin, 7-butylaminocoumarin, 8-butylaminocoumarin, 7-diisopropylaminocoumarin, 6-methylaminocoumarin and 6-diethylaminocoumarin. Also usable are 7-methylamino-4-methylcoumarin, 7-ethylamino-3-methylcoumarin, 8-ethylamino-4-methylcoumarin and 7-diethylamino-4-methylcoumarin.

Den mengde alkylamino-substituert cumarin som kan tilsettes ifølge oppfinnelsen er fra 0,05 til 2 vektprosent. Den nøyaktige mengde alkylaminosubstituert cumarin som er nødvendig for å oppnå den ønskede stabilisering i et gitt tilfelle, kan en fagmann bestem-me ved å utføre et enkelt forsøk. The amount of alkylamino-substituted coumarin that can be added according to the invention is from 0.05 to 2% by weight. The exact amount of alkylamino-substituted coumarin necessary to achieve the desired stabilization in a given case can be determined by a person skilled in the art by performing a simple experiment.

De alkylaminosubstituerte cumåriner som anvendes, tilsettes til polyamidene på et hvil-ket som helst passende trinn før fullførelsen av polymeriseringsreaksjonen. Herved inn-blandes stabiliseringsmidlet i polymerisatet og forblir således ikke bare på dets overflate. Herved oppnår man en meget langvarigere stabiliserende virkning enn hva der er mulig bare ved et ovetrekk på overflaten. The alkylamino substituted coumarins used are added to the polyamides at any convenient stage prior to completion of the polymerization reaction. In this way, the stabilizer is mixed into the polymer and thus does not just remain on its surface. In this way, a much longer-lasting stabilizing effect is achieved than is possible simply by overcoating the surface.

I det følgende beskrives som eksempel en utførelsesform for oppfinnelsen. In the following, an embodiment of the invention is described as an example.

Eksempel. Example.

En nylpnsaltoppløsning av omtrentlig ekvimolekylære mengder hexamethylen-diamin og adipinsyre ble fremstillet. Oppløsningen ble tilsatt 0,1 vektprosent 7-diethylamino-4-methylcumarin, hvorpå der ble fremstillet fibre av oppløsningen. Resultatene er oppført i nedenstående tabell. A sodium salt solution of approximately equimolar amounts of hexamethylenediamine and adipic acid was prepared. 0.1% by weight of 7-diethylamino-4-methylcoumarin was added to the solution, after which fibers were produced from the solution. The results are listed in the table below.

De resultater som ble funnet ved utset- The results found at exposure

telse for lysets innvirkning, er basert på 100 SFH (Standard Fade-O-meter-timer) i et Atlas Fade-O-Meter under anvendelse av de metoder som anbefales av «Technical Manual of the American Association of Textile Che-mists and Colorists», Howes Publishing Co., 44 E. 23rd Street, New York City (1957). calculation for the effect of light is based on 100 SFH (Standard Fade-O-meter-hours) in an Atlas Fade-O-Meter using the methods recommended by the "Technical Manual of the American Association of Textile Chemists and Colorists », Howes Publishing Co., 44 E. 23rd Street, New York City (1957).

Målinger angående innvirkning av varme er basert på 8 timer ved 200 °C i et varmeskap med varm luft. Measurements regarding the effect of heat are based on 8 hours at 200 °C in a hot air oven.

Claims (2)

1. Fremgangsmåte til stabilisering av syntetiske lineære polyamider mot innvirkning av varme, lys, fuktighet og oxygen, ved tilsetning av stabiliseringsmidler til de polyamid-dannende utgangsmaterialer, den polyamid-dannende reaksjonsblanding eller den varme polyamidsmelte, karakterisert ved at der som stabiliseringsmiddel anvendes et alkylaminsubstituert cumarin i en mengde fra1. Process for stabilizing synthetic linear polyamides against the effects of heat, light, moisture and oxygen, by adding stabilizers to the polyamide-forming starting materials, the polyamide-forming reaction mixture or the hot polyamide melt, characterized in that an alkylamine-substituted coumarin in an amount from 0,05 til 2 vektprosent av reaksjonskomponentene.0.05 to 2% by weight of the reaction components. 2. Fremgangsmåte ifølge påstand 1. karakterisert ved at det som alkylaminsubstituert cumarin anvendes 7-diethyl-amino-4-methylcumarin, 8-methylamino-4-methylcumarin eller 7-butylamino-4-methyl-cumarin.2. Method according to claim 1. characterized in that 7-diethyl-amino-4-methylcoumarin, 8-methylamino-4-methylcoumarin or 7-butylamino-4-methyl-coumarin is used as alkylamine-substituted coumarin.
NO734120A 1972-11-06 1973-10-25 INPUT CASE DEVICE FOR ADDING MASS TO A FORM NO143072C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US303972A US3888729A (en) 1972-11-06 1972-11-06 Papermaking machine headbox slice chamber containing pivotable thin rigid plates with flexible elements attached thereto

Publications (2)

Publication Number Publication Date
NO143072B true NO143072B (en) 1980-09-01
NO143072C NO143072C (en) 1980-12-10

Family

ID=23174492

Family Applications (1)

Application Number Title Priority Date Filing Date
NO734120A NO143072C (en) 1972-11-06 1973-10-25 INPUT CASE DEVICE FOR ADDING MASS TO A FORM

Country Status (15)

Country Link
US (1) US3888729A (en)
AR (1) AR199318A1 (en)
BE (1) BE806590R (en)
BR (1) BR7308640D0 (en)
CA (1) CA980156A (en)
CH (1) CH576554A5 (en)
DE (1) DE2354426C3 (en)
ES (1) ES420267A1 (en)
FR (1) FR2205603B2 (en)
GB (1) GB1443540A (en)
IT (1) IT1054147B (en)
NL (1) NL157067B (en)
NO (1) NO143072C (en)
SE (1) SE403917B (en)
ZA (1) ZA738504B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133715A (en) * 1977-03-29 1979-01-09 Beloit Corporation Headbox and holders for floating slice chamber dividers
FI771209A (en) * 1977-04-15 1978-10-16 Valmet Oy PAPER MUSHROOMS FOR THE PULP OF THE PULP MUSCLE
US4128455A (en) * 1977-05-20 1978-12-05 Beloit Corporation Headbox trailing element mounting and method
FI58364C (en) * 1977-07-13 1981-01-12 Tampella Oy Ab PROCEDURE FOR BANFORMING MACHINES FOR FRAMSTAELLNING AV EN TVAO- ELLER FLERSKIKTIG FIBERBANA
US4184913A (en) * 1978-03-31 1980-01-22 Western Electric Company, Incorporated Methods of simultaneously covering each of a plurality of elongated materials with uniformly weighted pulp insulation
US4224105A (en) * 1979-03-02 1980-09-23 Western Electric Company, Inc. Apparatus for simultaneously covering each of a plurality of elongated materials with uniformly weighted pulp insulation
US4340623A (en) * 1980-12-08 1982-07-20 Beloit Corporation High speed size press
US4517056A (en) * 1983-12-01 1985-05-14 Beloit Corporation Slice lip adjustment
GB8711330D0 (en) * 1987-05-14 1987-06-17 Beloit Corp Headbox
US4885060A (en) * 1988-02-01 1989-12-05 Westvaco Corporation Papermachine headbox profiling bar with fluid discharge orifices along its length
US5000227A (en) * 1988-02-01 1991-03-19 Westvaco Corporation Pressurized fluid carrier conduit connection
US4981587A (en) * 1988-09-13 1991-01-01 Electric Power Research Institute, Inc. Sieve with adjustable throat mechanism discharge
DE4136530A1 (en) * 1991-11-06 1993-05-13 Escher Wyss Gmbh FABRIC DRAIN
FI112808B (en) * 1993-10-29 2004-01-15 Metso Paper Inc Multilayer headbox
CN1151196A (en) * 1994-05-02 1997-06-04 墨西哥斯姆尔菲特纸板纸张有限公司 Inclined planar former for producing paper sheet under the felt for the production of multilayer or single-layer paper
DE4435860C2 (en) * 1994-10-07 1998-03-19 Voith Gmbh J M Headbox for creating a multilayer paper web
WO1998050625A1 (en) * 1997-05-09 1998-11-12 Beloit Technologies, Inc. A holder device for holding a trailing element
WO1998051856A1 (en) * 1997-05-12 1998-11-19 Beloit Technologies, Inc. A trailing element device
US6146500A (en) * 1998-06-19 2000-11-14 Kimberly-Clark Worldwide, Inc. Suction breast roll former and method, with flexible headbox roof
DE19930592A1 (en) 1999-07-02 2001-01-11 Voith Paper Patent Gmbh Headbox
DE19946756A1 (en) * 1999-09-29 2001-04-12 Voith Paper Patent Gmbh Stock inlet for a papermaking or cardboard prodn machine has a blade inserted between the rows of turbulence tubes with a lateral zone of a reduced cross section to reduce force peaks on starting/stopping the stock inlet
DE19962709A1 (en) * 1999-12-23 2001-06-28 Voith Paper Patent Gmbh Head box of papermaking machine, comprises improved hinge joints between lamellae and turbulence-generating sections
JP2003532809A (en) 2000-05-10 2003-11-05 メッツォ ペーパー カルルスタッド アクチボラグ Head box, vane mounting device and vane mounting method
US6521095B1 (en) 2002-02-05 2003-02-18 Metso Paper, Inc. Composite vane hinge in a headbox
DE10211178A1 (en) * 2002-03-14 2003-09-25 Voith Paper Patent Gmbh Laminated outlet for production of sandwich plaster board or corrugated cardboard has bends in channel sidewalls to jet outlet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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US3092540A (en) * 1960-11-09 1963-06-04 Beloit Iron Works Method and apparatus for distributing particle suspensions
US3607625A (en) * 1968-01-17 1971-09-21 Beloit Corp Headbox
US3619362A (en) * 1969-02-03 1971-11-09 Beloit Corp Papermaking headbox stock nozzle with liquid jacket means for elimination of stock exposure to air
CA936722A (en) * 1970-08-31 1973-11-13 A. Betley Raymond Headbox slice chamber

Also Published As

Publication number Publication date
CA980156A (en) 1975-12-23
BE806590R (en) 1974-02-15
BR7308640D0 (en) 1974-09-05
IT1054147B (en) 1981-11-10
DE2354426C3 (en) 1982-03-11
NL157067B (en) 1978-06-15
NO143072C (en) 1980-12-10
US3888729A (en) 1975-06-10
GB1443540A (en) 1976-07-21
ZA738504B (en) 1974-09-25
ES420267A1 (en) 1976-03-01
AR199318A1 (en) 1974-08-23
NL7314912A (en) 1974-05-08
DE2354426A1 (en) 1974-05-30
FR2205603A2 (en) 1974-05-31
CH576554A5 (en) 1976-06-15
SE403917B (en) 1978-09-11
FR2205603B2 (en) 1979-10-05
DE2354426B2 (en) 1981-07-30

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