TW509709B - Aqueous dispersions of fluoropolymers of different particle size and the preparation process thereof - Google Patents
Aqueous dispersions of fluoropolymers of different particle size and the preparation process thereof Download PDFInfo
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- TW509709B TW509709B TW087110025A TW87110025A TW509709B TW 509709 B TW509709 B TW 509709B TW 087110025 A TW087110025 A TW 087110025A TW 87110025 A TW87110025 A TW 87110025A TW 509709 B TW509709 B TW 509709B
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- 239000006185 dispersion Substances 0.000 title claims abstract description 55
- 239000002245 particle Substances 0.000 title claims abstract description 34
- 229920002313 fluoropolymer Polymers 0.000 title claims abstract description 17
- 239000004811 fluoropolymer Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims 2
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 8
- 238000009738 saturating Methods 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000007720 emulsion polymerization reaction Methods 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims 1
- 238000007598 dipping method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 description 7
- 230000002079 cooperative effect Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- UHCBBWUQDAVSMS-UHFFFAOYSA-N fluoroethane Chemical compound CCF UHCBBWUQDAVSMS-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/005—Processes for mixing polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/347—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated ethers, acetals, hemiacetals, ketones or aldehydes
- D06M15/353—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated ethers, acetals, hemiacetals, ketones or aldehydes containing fluorine
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/047—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with fluoropolymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Reinforced Plastic Materials (AREA)
Description
509709 A7 B7 五、發明說明(1 ) 介紹 u s - A - 5 5 7 6 381提出一種由乳化聚合 &應而獲得的氟聚合物之水性分散液,其無法由熔體加 工’當燒結時其會形成膜,包括平均粒徑(數目-平均) 從1 8 0至4 0 0毫微米的氟聚合物A )及平均粒徑低約 〇 · 3至約〇 · 7倍的氟聚合物B ),因此整個分散液具 有非單一模態(n〇n_m〇nm〇da丨)的粒徑數目分佈。此分散 液是把對應的分散液混合並視需要濃縮至想要的固體含量 而獲得。此分散液適合於飽和、浸漬或塗佈表面,適合於 飽和或浸漬纖維或從纖維或多孔材料製得的片狀物體,及 適合於塗佈玻璃-纖維布,及適合於調配金屬-塗佈系 統。 比較上,本發明係關於一種利用乳化聚合反應而獲得 的不同粒徑氟聚合物之分散液,包括至少一種平均粒徑 (數目一平均)至少2 0 0毫微米的氟聚合物A)及至少 一種平均粒徑(數目一平均)不大於1 〇 0毫微米的氟聚 合物B ),組分A )及B )之一爲熱塑塑膠而另一組分則 無法由熔體加工,整個分散液具有非單一模態的粒徑數目 分佈。 所提及的平均粒徑爲實質上球形粒子粒徑之數目平 均,其可從粒徑的定量中於分散液的電子顯微鏡影像裏測 得。對非球形粒子來說,粒徑是取兩個主軸的幾何平均。 較佳的新穎分散液爲具有以下特徵者: 無法由熔體加工的組分宜爲聚四氟乙烯(PTFE) 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -4 - (請先閱讀背面之注意事項再填寫本頁) 訂---r---- 經濟部智慧財產局員工消費合作社印製 509709 經濟部智慧財產扃員工消費合作社印製 A7 B7 五、發明說明(2 ) 或有些許量共單體之四氟乙烯(T F E )聚合物,此共單 體如六氟丙烯(HF P )或烷基中有1至3個碳原子的全 氟化院基乙烯基醱(PAVE),如全氟(正丙基乙燦 基)醚(P P V E ),其足夠小使聚合物無法熔化加工。 此聚合物稱爲經改質〃的P T F E。 如所熟知的,所謂”熱塑塑膠”經了解爲一種可由熔體加 工的聚合物。商場上可獲得的熱塑氟聚合物爲含有共單體 的TF E聚合物,作爲該共單體者如具1至3個碳原子的 烷基之PAVE、不同於TFE而具有2至4個碳原子的 氟化燃(如乙燃基氟、亞乙稀基氟或HFP),及未氟化 低分子量烯類(如乙烯或丙烯)或二或三種這類共單體。 較佳的熱塑塑膠爲具有主要爲T F E及次要莫耳比例 之PPVE、HF P、乙烯或丙烯等單元之二聚合物,及 主要爲T F E單元及乙烯和HF P單元之三聚合物。 共單體之量乃經選擇使共聚合物可熔化加工但仍然不 具彈性體的性質(elastomeric properties )。 較佳的粒徑(數目一平均)對組分A )爲至少2 3 0 毫微米,對組分B )爲不大於8 0毫微米,較佳爲不大於 5〇毫微米,特別是不大於4 0毫微米。 U S — A — 3 9 2 5 2 9 2提出一水性分散液其 包括a )不可熔化加工的聚四氟乙烯,及b )非彈性體而 可以熔化加工的四氟乙烯共聚合物及非離子表面活性劑。 該聚四氟乙烯較佳地具有至少3 0 〇毫微米的平均粒徑。 其並未就共聚合物的粒徑提供資訊;僅在一個實施例中指 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)-5 - (請先閱讀背面之注意事項再填寫本頁) - 經濟部智慧財產局員工消費合作社印製 509709 A7 B7 五、發明說明(3 ) 出1 6 0毫微米的粒徑。在此實施例中,聚四氟乙烯的平 均粒徑爲2 3 0毫微米而與該共聚合物有著相同級數的尺 寸。 要製備相當於本發明組分B .)之細密分散的聚合物時 需特別地謹慎,例如使用相當大量的表面活性劑、強烈的 攪拌或增加起始劑的使用。此類型的細密聚合物分散液揭 示於 EP — B — 612 770 ( U S - A - 5 5 6 3 213)及 EP — B — 6 1 2 5 6 9中。其亦可以熟知的種子聚合 反應法製備(如US — A — 4 391 940所述)。 在分散液中的組分A)及B)之重量比可在寬廣的極 限內變化,只要其粒徑數目分佈爲非單一模態即可。在就 所想要的密集堆疊之粒子而言,組分間的重量比可輕易地 計算或從已知的粒徑估算。就多孔基材被塗佈而言,將使 用較高比例的組分B )。 通常,組分A)及B)可各以1至9 9重量%存在’ 而各以1 0至9 0重量%較有益,較佳爲2 0至8 0重量 %,特別是3 0至7 0重量%。在任一特定範圍內,熟悉 此技藝的人士將能夠-可視需要藉助簡單的初步實驗-針 對考慮的基材”修改”至合適的組分重量比例。 合適的組分A )爲商場上可取得之平均粒徑至少 2〇0毫微米(數目-平均)的氟聚合物之分散液。此商 場上可獲得的分散液之粒徑分佈範圍從1 8 0至3 0 0毫 微米。 (請先閱讀背面之注意事項再填寫本頁)
本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -6 - 509709 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明(4 ) 此新穎的分散液可藉混合組分A )的水性分散液及組 分B )的水性分散液而獲得,可在不添加界面活性劑的情 況下直接用在許多應用上。 對其它應用而言,且爲了減低運輸體積,將使用比以 個別分散液之混合而獲得之分散液更高濃度的分散液,或 由適當之聚合反應獲得雙模態的粒徑分佈。在這些情況 下,分散液將以熟知的方法濃縮。合適方法之一例爲超過 濾法(US - A — 4 3 6 9 2 6 6 ),通常加入十二 烷基磺酸鈉型式的陰離子界面活性劑、或烷基苯基乙氧酯 (alkylphenyl oxethylate )型式的非離子界面活性劑。生物 可分解性佳之相當長鏈的烷基胺氧化物( U S - A — 5 2 1 9 9 1 0 )乃特別地有益。在組分 混合後,更方便進行濃縮法。 所加入的界面活性劑量視濃縮法型式及後續應用而 定。以聚合物固體含量計,此範圍通常爲4至1 5重量 %。若新穎的分散液是要用於例如金屬-塗佈,則約5重 量%的低量界面活性劑含量即足夠。若用於塗佈玻璃-纖 維布,通常需要9至1 1重量%之表面活性劑含量。在這 些情況中,所選擇的表面活性劑將是在燒結期間的膜形成 中或膜形成後容易移除者,如前述胺氧化物之一種。 此新穎的分散液適於在平滑、多孔或纖維材料上產生 塗層,以用於例如飽和或浸漬片狀或非片狀的纖維材料或 多孔材料(例如由石墨製得者)。可舉出之平滑基材例子 爲從金屬、陶瓷、玻璃或塑膠製造出的表面。對金屬的塗 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -7 - (請先閱讀背面之注意事項再填寫本頁) AW 0 n n n n n ·_1_ n〕OJ· n If ϋ ϋ ϋ n n I , 509709 A7 B7 五、發明說明§ ) 佈來說,若有必要,可在此新穎分散液中添加一種通常用 於此目的之黏合劑樹脂,或以熟知的方法預處理金屬表 面。 聿父it的應用Τι!域爲玻璃纖維布的塗佈。與用個別組分 之分散液處理相較下,此新穎的分散液在明顯較少的加工 步驟下可達到所想要的層厚,而不會引起破裂的形成或不 平坦的膜。使用新穎的分散液意謂著可明顯地節省加工步 驟而且顯著節省時間及成本。此優點的取得並不減損品 質;此外,根據本發明所獲得的膜顯示出一致的 (coheren )結構且比以各別的組分獲得的塗層有較大的硬 度。更詳盡的參考資料可於 US — A— 5 5 7 6 38 1 中獲得。 此新穎的分散液提供了低孔隙度及高介電性強度的塗 層。再者,對基材(特別是多孔性表面及物件)的黏附性 有所改善。 本發明於下列實施例中有更詳細的描述。 實施例1 將平均粒徑(數目一平均)2 4 0毫微米5 8重量% 的水性P T F E分散液1 0 0重量份與平均粒徑(數目一 平均)80毫微米具有96·4重量份TFE單元及 3 · 6重量份P P V E單元的2 1重量%水性共聚合物分 散液3 3 · 1 4重量份混合’而得到一以氟聚合物計含有 8 8重量T F E及1 2重量%共聚合物之水性分散 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公爱)-8- (請先閱讀背面之注意事項再填寫本頁) 訂----------線! 經濟部智慧財產局員工消費合作社印製 509709 A7 B7 五、發明說明$ ) 液。 以此分散液製造厚度2 5 ± 3微米的流延膜(cast film )。此膜的介電強度爲2 6 4千伏/毫米。爲供比 •較’僅以P T F E分散液獲得的流延膜顯示出厚度3 〇 ± 3 微米時,其介電強度爲48·3千伏/毫米。 注意:不同的膜厚爲分散液黏度不同的結果。然因此 介電強度是針對一毫米層厚度,其差異在測量的方法中已 納入考慮。 實施例2 將實施例1中所述具有8 8重量%PTF E及1 2重 量%共聚合物之固容物的分散液噴灑至厚度爲1毫米經鈾 刻的鋁片上。乾燥並燒結後,得到的層厚爲1 2微米。 爲了比較’施以僅含P T F E之分散液而得對應層。 層的孔隙度以滴下濃氫氯酸至其上方而測試。在本$ 明所得塗層的情況下於3分鐘內只有少許氣泡產生,然@ 該P T F E層情況下卻有大量氣體產生。 (請先閱讀背面之注意事項再填寫本頁) --------訂--- 線一 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)
Claims (1)
- 509709 附件一 a :第87110〇25號專利申請案中文申請專利範圍修正本 8一改 _j民國90年8,月呈 I 經濟部智慧財產局員工消費合作社印製 申請專利範圍 種不同粒7至氟聚Μ徽立水性分散液,係由乳化 聚合反應獲得且包括至少一種平均粒徑(數目一平均)至 少2 0 0毫微米的氟聚合物A )及至少一種平均粒徑(數 目一平均)不大於1 〇 〇毫微米的氟聚合物B ),組分 A )及B )中之一者爲熱塑塑膠而另一組分無法由熔體加 工且爲P 丁 F E或經改質之P T F E ,而整個分散液具有 非卓一模態的粒徑數目分佈。 2 ·如申請專利範圍第1項之分散液,其中組分A ) 無法由熔體加工。 1 3 ·如申請專利範圍第2項之分散液,其中組分A ) 爲聚四氟乙烯或是四氟乙烯聚合物而該四氟乙烯聚合物的 共單體含量夠低到使該聚合物無法由熔體加工。 4 .如申請專利範圍第1至3項中任一項之分散液, 其具有界面活性劑成分。 5 ·如申請專利範圍第1至3項中任一項之分散液, 其中組分A )及B )之含量比例各爲1至9 9重量%。 6 ·如申請專利範圍第5項之分散液,其中組分A ) 及B )之含量比例各爲1 〇至9 0重量%。 7 ·如申請專利範圍第6項之分散液,其中組分A ) 及B )之含量比例各爲2 0至8 0重量%。 8 ·如申請專利範圍第7項之分散液,其中組分A ) 及B )之含量比例各爲3 0至7 0重量%。 9 ·如申請專利範圍第1至3項中任一項之分散液’ 其中組分A )之平均粒徑(數目-平均)爲至少2 3 ◦毫(請先閱讀背面之注意事項再填寫本頁) -裝. 、1T 線 本紙張尺度適用中國國家棵準(CNS ) A4規格(210X297公釐) 509709 A8 B8 C8 D8 六、申請專利範圍 微米,而組分B )之平均粒徑(數目一平均)不大於8〇 毫微米。 1〇·如申請專利範圍第9項之分散液,其中組分 B )之平均粒徑(數目一平均)爲不大於5 0毫微米。 1 1 ·如申請專利範圍第1 〇項之分散液,其中組分 B)之平均粒徑(數目一平均)爲不大於40毫微米。 1 2 · —種用於製備如申請專利範圍第1至1 1項中 任一項分散液之方法,其中令至少一種氟聚合物A )的水 性分散液與至少一種氟聚合物B )的水性分散液混合,且 視需要濃縮至想要的固體含量。 1 3 ·如申請專利範圍第1 2項之方法,其中令所得 混合物濃縮到4 0至6 5重量%之固體含量。 1 4 ·如申請專利範圍第1至3項中任一項之分散 液,係用於飽和、浸漬或塗佈表面。 1 5 .如申請專利範圍第1至3項中任一項之分散 液,係用於調配金屬-塗佈系統。 1 6 ·如申請專利範圍第1至3項中任一項之分散 液,係用於飽和或浸漬纖維或用於飽和或浸漬由纖維或多 孔材料製得的片狀物體,及用於塗佈玻璃-纖維布。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) · 2 - VI —lrl—-------裝------,訂 j——t 線· (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製
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DE19726802A DE19726802C1 (de) | 1997-06-24 | 1997-06-24 | Wäßrige Dispersion von Fluorpolymeren unterschiedlicher Teilchengröße |
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1997
- 1997-06-24 DE DE19726802A patent/DE19726802C1/de not_active Expired - Fee Related
-
1998
- 1998-06-18 BR BR9810327-0A patent/BR9810327A/pt not_active Application Discontinuation
- 1998-06-18 DE DE59803347T patent/DE59803347D1/de not_active Revoked
- 1998-06-18 US US09/446,319 patent/US6566452B1/en not_active Expired - Fee Related
- 1998-06-18 AU AU83384/98A patent/AU738270B2/en not_active Ceased
- 1998-06-18 ES ES98933631T patent/ES2173601T3/es not_active Expired - Lifetime
- 1998-06-18 WO PCT/EP1998/003678 patent/WO1998058984A1/de active IP Right Grant
- 1998-06-18 RU RU2000101846/04A patent/RU2217447C2/ru not_active IP Right Cessation
- 1998-06-18 CA CA002295147A patent/CA2295147A1/en not_active Abandoned
- 1998-06-18 CN CN98806539A patent/CN1106419C/zh not_active Expired - Fee Related
- 1998-06-18 EP EP98933631A patent/EP0990009B1/de not_active Revoked
- 1998-06-18 JP JP50374999A patent/JP2002505699A/ja not_active Ceased
- 1998-06-18 AT AT98933631T patent/ATE214405T1/de not_active IP Right Cessation
- 1998-06-19 CO CO98035153A patent/CO5040162A1/es unknown
- 1998-06-22 MA MA25128A patent/MA24575A1/fr unknown
- 1998-06-22 TW TW087110025A patent/TW509709B/zh active
- 1998-06-23 UY UY25061A patent/UY25061A1/es not_active Application Discontinuation
- 1998-06-23 AR ARP980103021A patent/AR016759A1/es unknown
- 1998-06-23 ZA ZA985451A patent/ZA985451B/xx unknown
-
2000
- 2000-01-06 BG BG104063A patent/BG104063A/bg unknown
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2003
- 2003-04-03 US US10/406,173 patent/US6867261B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI816728B (zh) * | 2017-12-27 | 2023-10-01 | 日商Agc股份有限公司 | 分散液、金屬積層板及印刷基板之製造方法 |
Also Published As
Publication number | Publication date |
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EP0990009A1 (de) | 2000-04-05 |
BG104063A (bg) | 2000-08-31 |
CA2295147A1 (en) | 1998-12-30 |
BR9810327A (pt) | 2000-09-05 |
ATE214405T1 (de) | 2002-03-15 |
AR016759A1 (es) | 2001-08-01 |
JP2002505699A (ja) | 2002-02-19 |
AU738270B2 (en) | 2001-09-13 |
CN1106419C (zh) | 2003-04-23 |
UY25061A1 (es) | 2001-01-31 |
EP0990009B1 (de) | 2002-03-13 |
DE59803347D1 (de) | 2002-04-18 |
WO1998058984A1 (de) | 1998-12-30 |
US6566452B1 (en) | 2003-05-20 |
RU2217447C2 (ru) | 2003-11-27 |
MA24575A1 (fr) | 1998-12-31 |
ZA985451B (en) | 1999-01-06 |
DE19726802C1 (de) | 1998-06-10 |
CO5040162A1 (es) | 2001-05-29 |
CN1261385A (zh) | 2000-07-26 |
US6867261B2 (en) | 2005-03-15 |
US20030204011A1 (en) | 2003-10-30 |
AU8338498A (en) | 1999-01-04 |
ES2173601T3 (es) | 2002-10-16 |
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