RU2000118231A - LOW DENSITY REINFORCED FOAMED PLASTICS - Google Patents

LOW DENSITY REINFORCED FOAMED PLASTICS

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Publication number
RU2000118231A
RU2000118231A RU2000118231/04A RU2000118231A RU2000118231A RU 2000118231 A RU2000118231 A RU 2000118231A RU 2000118231/04 A RU2000118231/04 A RU 2000118231/04A RU 2000118231 A RU2000118231 A RU 2000118231A RU 2000118231 A RU2000118231 A RU 2000118231A
Authority
RU
Russia
Prior art keywords
copolymer
polymer
composition
foam
aromatic
Prior art date
Application number
RU2000118231/04A
Other languages
Russian (ru)
Other versions
RU2217450C2 (en
Inventor
Джеффри Джон МЭСОН
Георгес ЭШЕНЛАУЭР
Чау Ван ВО
Original Assignee
Дзе Дау Кемикал Компани
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
Priority claimed from EP97121594A external-priority patent/EP0921148A1/en
Application filed by Дзе Дау Кемикал Компани filed Critical Дзе Дау Кемикал Компани
Publication of RU2000118231A publication Critical patent/RU2000118231A/en
Application granted granted Critical
Publication of RU2217450C2 publication Critical patent/RU2217450C2/en

Links

Claims (13)

1. Способ производства алкиленароматического полимерного или сополимерного многожильного пенопласта или пенопласта со слипшимися жилами, предусматривающий стадии
(a) приготовление по меньшей мере одной вспениваемой композиции, содержащей по меньшей мере один полимер, выбранный из алкиленароматических полимеров и алкиленароматических сополимеров, и композиции вспенивающих агентов,
(b) экструзию композиции через головку, имеющую множество отверстий,
(c) вспенивание экструдированной композиции при температуре пенообразования, которая выше температуры стеклования или температуры плавления полимера или сополимера,
(d) выдерживание вспененного продукта при повышенной температуре в течение периода времени, достаточного для наступления адгезии между отдельными жилами пены, и
(е) оставление вспененного продукта для охлаждения, отличающийся тем, что на стадиях (d) и (е) температуру пены регулируют на основе термодинамической природы композиции вспенивающего агента.1. Method for the production of alkylene-aromatic polymeric or copolymer multi-core foam or stuck-up foam with the stages
(a) preparing at least one expandable composition comprising at least one polymer selected from alkylene-aromatic polymers and alkylene-aromatic copolymers, and blowing agent compositions,
(b) extruding the composition through a die having a plurality of apertures,
(c) foaming the extruded composition at a foaming temperature that is higher than the glass transition temperature or the melting point of the polymer or copolymer,
(d) maintaining the foamed product at an elevated temperature for a period of time sufficient to cause adhesion between the individual veins of the foam, and
(e) leaving the foamed product for cooling, characterized in that in steps (d) and (e) the temperature of the foam is controlled based on the thermodynamic nature of the composition of the foaming agent. 2. Способ по п. 1, где композиция вспенивающего агента имеет низкую охлаждающую способность при испарении, и стадия (е) включает ускоренное охлаждение вспененного продукта. 2. A method according to claim 1, where the composition of the foaming agent has a low cooling capacity during evaporation, and stage (e) includes accelerated cooling of the foamed product. 3. Способ по п. 1, где композиция вспенивающего агента имеет высокую охлаждающую способность при испарении, и стадия (d) включает подачу дополнительного тепла к вспениваемому продукту. 3. A method according to claim 1, where the composition of the foaming agent has a high cooling capacity during evaporation, and stage (d) includes the supply of additional heat to the foamable product. 4. Способ по п. 2, где вспенивающий агент выбран из диоксида углерода, азота, оксида азота, благородного газа, воздуха и смесей одного или более таких вспенивающих агентов. 4. The method according to claim 2, wherein the foaming agent is selected from carbon dioxide, nitrogen, nitrous oxide, noble gas, air, and mixtures of one or more such foaming agents. 5. Способ по п. 3, где вспенивающий агент выбран из углеводородов, простых эфиров, низших спиртов, частично галогенированных углеводородов, аммиака, воды и их смесей. 5. The method according to claim 3, wherein the foaming agent is selected from hydrocarbons, ethers, lower alcohols, partially halogenated hydrocarbons, ammonia, water, and mixtures thereof. 6. Способ по любому из пп. 1-5, где вспенивающий агент не имеет потенциала истощения озона. 6. A method according to any one of claims. 1-5, where the foaming agent has no ozone depletion potential. 7. Способ по любому из пп. 1-6, где полимер содержит моновинилиденароматические мономеры, выбранные из стирола, α-метилстирола, стирола, имеющего алкильные и/или галогенные заместители в ароматическом кольце, и их смесей. 7. A method according to any one of claims. 1-6, where the polymer contains monovinylidene aromatic monomers selected from styrene, α-methylstyrene, styrene having alkyl and / or halogen substituents on the aromatic ring, and mixtures thereof. 8. Способ по любому из пп. 1-7, где сополимер содержит алкиленароматические мономеры и другие способные к полимеризации мономеры. 8. A method according to any one of claims. 1-7, where the copolymer contains alkylenearomatic monomers and other polymerizable monomers. 9. Способ по любому из пп. 1-8, где полимерная или сополимерная композиция по существу не содержит адгезивных добавок. 9. The method according to any one of paragraphs. 1-8, where the polymer or copolymer composition essentially does not contain adhesive additives. 10. Способ по любому из пп. 1-9, где температура пенообразования на от 1 - 50oС выше температуры стеклования или температуры плавления полимера или сополимера.10. A method according to any one of claims. 1-9, where the temperature of foaming at from 1 - 50 o C above the glass transition temperature or the melting point of the polymer or copolymer. 11. Способ по любому из пп. 1-10, где теоретический диаметр отдельной жилы пены равен или больше, чем расстояние между отверстиями головки. 11. A method according to any one of claims. 1-10, where the theoretical diameter of the individual veins of the foam is equal to or greater than the distance between the holes of the head. 12. Способ по любому из пп. 1-11, дополнительно предусматривающий совместную экструзию неалкиленароматического способного вспениваться полимера или сополимера через головку с множеством отверстий; причем получают вспененную композицию, содержащую по меньшей мере один алкиленароматический полимерный или сополимерный вспененный компонент и по меньшей мере один неалкиленароматический полимерный или сополимерный вспененный компонент. 12. A method according to any one of claims. 1-11, further comprising co-extruding the non-alkylene aromatic foamable polymer or copolymer through a die with multiple openings; moreover, a foamed composition is obtained comprising at least one alkylene aromatic polymer or copolymer foam component and at least one non-alkylene aromatic polymer or copolymer foam component. 13. Полимерный или сополимерный многожильный пенопласт на основе полистирола, получаемый по способу любого из пп. 1-12. 13. Polymer or copolymer multicore polystyrene foam, obtained by the method of any of paragraphs. 1-12.
RU2000118231/04A 1997-12-08 1998-11-11 Multi-filament foam plastics of low density RU2217450C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97121594.2 1997-12-08
EP97121594A EP0921148A1 (en) 1997-12-08 1997-12-08 Low density strand foams

Publications (2)

Publication Number Publication Date
RU2000118231A true RU2000118231A (en) 2002-07-10
RU2217450C2 RU2217450C2 (en) 2003-11-27

Family

ID=8227765

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000118231/04A RU2217450C2 (en) 1997-12-08 1998-11-11 Multi-filament foam plastics of low density

Country Status (13)

Country Link
US (1) US6197233B1 (en)
EP (1) EP0921148A1 (en)
JP (1) JP2001525276A (en)
KR (1) KR20010024700A (en)
CN (1) CN1281481A (en)
CA (1) CA2313170A1 (en)
HU (1) HUP0100074A3 (en)
MX (1) MXPA00005645A (en)
NO (1) NO20002906L (en)
RU (1) RU2217450C2 (en)
TR (1) TR200001661T2 (en)
TW (1) TW533221B (en)
WO (1) WO1999029765A1 (en)

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