BE681243A - - Google Patents

Info

Publication number
BE681243A
BE681243A BE681243DA BE681243A BE 681243 A BE681243 A BE 681243A BE 681243D A BE681243D A BE 681243DA BE 681243 A BE681243 A BE 681243A
Authority
BE
Belgium
Prior art keywords
particles
styrene
objects
moula
desc
Prior art date
Application number
Other languages
English (en)
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 filed Critical
Publication of BE681243A publication Critical patent/BE681243A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0446Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by increasing the density locally by compressing part of the foam while still in the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10Applying counter-pressure during expanding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads

Landscapes

  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Description


   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



  :,J'Obj3t d:> l'invention a .3': 1.1.11 procède d3 fabri- cation d'abjata an matière tharmoplaetiqua mousse par chauffage d nat14ree mousaas finement divisées, ancor'3 gonflables, dann das oul,i3 fermés d'où l'air ut Jf-5chap[,t1 de.a ;#.p G=.ati= > 3iip r'- sur a a leur poiI1.t 4e rJ==clLisaà.m>nt, la ..3 de3 particules étant >jogJ±1µZÔO a'lGà21 la chauffage 3n 2l'Î3i,ni pointa du 
 EMI1.2 
 moula, 
 EMI1.3 
 ±,33 objets JU:1.)2 #3D più,fzÉ,"3i <14 3tj<'Ône Elous- 3d .jiiii"j g.éîx$r3±LiQCSI µC )pX>I41à àt',àLÀllI'3Ô,13àOXj 9: un p "? ? 2 ] l. d'3- lc:u:3l ;J .l rait t iÂz Q U ± h 8 1 'j 3 1, Q 3 3 È S $ fl PÔ u à b 1 li p ar :

   1, 1,i l', 3 3 ± i n => :d , dd ù 1 ;, ç Qn O Q 1 > fl ¯? "à i' t L <T ,ù, 1   soient frit-cées an ob.i-c-, moula dont la f;>i,=e '.:orra?nd cella du moula, #i .rt*.inDJ axigancea Bca.niua *on% i::9':.a\93 aux obj3t3 soûles >iestJ,nés à l'omploi '::Q 1301::.1..'1.-':3 ou ', ¯¯ ';'¯1',iz'j de chocs. La rÉ513?,n,tte des >'II'JS- 393 3,A:gm3nz.> #io..i<sc ?,i<ar 4z.ns!,r4 3?31" Il J13t s0utai- table. D'.1It'J'1I dì!"'"l,,1 lj arT.ol3 fatràLrj"-1Ée 3G grands ioé." rie pour l'b311aGa. ixlà le] $éir'ljf,1m i33 objets oul5 souxlias A d'3;.: -?ffo"'t3 ai-àn< Il!:.;) t43L3f?2'îe mc?j'.inu3 3àÎiÉ3101Ill , Lf:::J,':1 t j l'-tnar'.ior'. =i z t ,:n.

     ;. c < ù <:1 à3 d fbri- 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 cation d'objets I=n1a1é3 en matière 9:a3: '- chauffaga de polymère de styrène nou310 ¯ nes, encora gcnflabla, dans des moules .i >1=, . - paut s'échap9ir, Q. dss températurea 3;)'-.;1."" de ramnllia3emint du polymère de styrcn. les particulss moussent et se fritte:;, , ¯ -. quel on comprime 1-33 particules en car :r'¯  .. z. moule après ramplisaaga et fermeture du -c¯'¯ : ... de le chauffer, On obtient ainsi des objets Izc.à14s 1¯.,.. ,: .i. ; plus grande densit é, donc une meilleure r:33 '..l:; :-. : .. ¯ . niqua, aux endroits où les particules ont ";8 -:0;:;.0:::,.., ;-J ;, Ce procédé convient à la fab:,....3.';' j;', 'l ..:: moulés en yo:'J7.1èrsJ du styrène. On enteni pua  rr' . , -.. du styrène la polystyrène et les copolY!U8re d. : :,,- '"n: et de l'acrl:oni=ile par exemple.

   LeJ 901J)rJ x .-.> . ses encore .gonflables du styrène peuvent '::') :J'O--;-3':'.'.; gur chauffa-:57 .1' ,ly-zèrea du styrène -;or:<:;: -: -1 .... flants. Las psrticulaa ont de préfére:l8 ',L;'. .iL=.,, : -=. , ¯..:. - forme da C,5 à , ,2 cm. 



  J\près l'introduction dans le Je<=1; j" t : :: ¯.. - ture du moule, on peut chauffer avantageusement :a3 par- ticules par soufflaie d'air chaud, de vapeur d a:.w 13 mélanges d'air et de vapeur d'eau. 



  Un a;xa='eil commodepour la mise en Je.c;,<.> de l'invention Je compose d'un moule fermé de toua i'3t4e avec des ouvarturas dans lea parois par où 1.):; .' vent t 6' é()hapa, cyr taines parties du mo'.Ü0 ' ...- ¯ ¯ - les par rapport aux autres. 



  Les figures 1 et 2 représentenn u.. '.. 

 <Desc/Clms Page number 3> 

 
 EMI3.1 
 ce e g e n r i , '1 3 =- s 1 3 1; 1   a u 1 i i d...'3 s > a .,:< .> . T: .la ,3 s montre 3. >r. 3 .à È fi, d .3 e m ,3 1 1 ': 'à .s.. i p 1, X ù; n :> t. i. ', i ¯J e =- # aI: :, ". : i .-; L a " 1: .4 - nient à la paroi 1 3 'b p 1 3 C .é 1 J . l± ]?i : i 1. l 1,X '1 .1. ,q¯:,1 fl î ? .l L , ' ..t' 3 t ; Aprèe .ra:n9l.j.sag<J <à'J z.JùL> :;:..1> ±3 j;> ,,c;E=,: z?;i;i.e fine- ment di vi i9 #ia 3tj,r-tÉ-:a <=;.:,;.y,> 1':IL::'j:t;:) 'Jl : )'lise '.La pièce e m a 1.> < i, vara e '1 " " ;; .1 )-< 7 ù..; ; ... i =n .#u 1, :J ;:a ;<q;a ' 1, et) qu'el- le soit au ras d8 la parc:.. .> Jrti,:z.alei du ?c".yinr3 de Si'z;:.ré:J.,> ont ainsi c#mg.;iz;1.z:3 .>n=a lle muntro la fi- gui-a 2. 



  Le commande a9fj fic;=.tios mo'eil,Bs du. veille peut être p!le1..l.."!la tiqua, hydraulique ou mér.2.ni.:r....c. Ou peut aus- ai par exemple déplacer six;.ii,tsn.±f-;-a:; plusieurs piëcas mobiles l'aida de 'Li..:-3 3.Z'ÎÉ-<Îi 1.éil, iei,r.ogà.i;;.oeti,j;q:s 9.rJc±dé da facrt.o .i ' :";jJtJ i;fli;,1.is en na- .........................'-4,'..'.)...' .-i'.I3'-.:1 .. ",..(.ou3 ère ':h':)7:ncplastiqus :nc-:).s:: #'.iL.".>i;;t 1*.yi,3?, iii chauffa dos .ùie"iE.à%Ee,ù ':haro9't.:r:i:.i.=! u'3'3.-3 =3nr;5#> g.cnfisbiaa, à ?articul-:.-2 f ,=;es. :>ix..;.'=;<.i.i* ia "¯g:,>;; -'s.':?t-:.3 da .ra- dan2 das .;n.>*2ae ':'J'::':1.8 .i"nià lalT.' po?it s' é- chapper, caractérig an co q'o cOQrid la masse des particulas an ùartains pot.>.%i du .!:01;.J.!) a.'8J"...j la cl"4auf-.ea30. 



  2.- pcur li; 4ll3ato d 9rc:d SU- vant la revendication i, , .;;3.rnct4ria4 on 83 qu'il consis- . , .;;#. r i>.à i. farsé 4 ..i, ± .i .i t 'J 1 4 1 a"o d-3a :J i >a iru r t i,ir ;3 dans sea par Le-=:q'.mi ù,oez as x-1.;en; z" 4ahap- par, caractérise -3r.. co qt.-.:: i+=-;:i.lc.=: i ça='fiaq .iri Ur du mcul-9 zcnt mobilt:e par r ,>ç.v;?n ai.t a'à.r.t3.>.¯

BE681243D 1965-05-19 1966-05-18 BE681243A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0081995 1965-05-19

Publications (1)

Publication Number Publication Date
BE681243A true BE681243A (fr) 1966-11-18

Family

ID=6981332

Family Applications (1)

Application Number Title Priority Date Filing Date
BE681243D BE681243A (fr) 1965-05-19 1966-05-18

Country Status (3)

Country Link
BE (1) BE681243A (fr)
ES (1) ES326691A1 (fr)
NL (1) NL6606546A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034671A (fr) * 1973-08-01 1975-04-03
JPS5230873A (en) * 1976-09-16 1977-03-08 Matsushita Electric Industrial Co Ltd Process for manufacturing molded foam article
EP0578272A1 (fr) * 1988-10-31 1994-01-12 Mitsubishi Denki Kabushiki Kaisha Structure poreuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034671A (fr) * 1973-08-01 1975-04-03
JPS5230873A (en) * 1976-09-16 1977-03-08 Matsushita Electric Industrial Co Ltd Process for manufacturing molded foam article
EP0578272A1 (fr) * 1988-10-31 1994-01-12 Mitsubishi Denki Kabushiki Kaisha Structure poreuse

Also Published As

Publication number Publication date
ES326691A1 (es) 1967-03-01
NL6606546A (fr) 1966-11-21

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