TW323294B - - Google Patents
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- TW323294B TW323294B TW83109583A TW83109583A TW323294B TW 323294 B TW323294 B TW 323294B TW 83109583 A TW83109583 A TW 83109583A TW 83109583 A TW83109583 A TW 83109583A TW 323294 B TW323294 B TW 323294B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C15/00—Devices for cleaning between the teeth
- A61C15/04—Dental floss; Floss holders
- A61C15/041—Dental floss
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
- D01F6/12—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
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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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- 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
- Y10T428/2913—Rod, strand, filament or fiber
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- 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
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/298—Physical dimension
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- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
Description
經濟部中央標準局貝工消費合作社印製 A7 _ 一 B7五、發明説明(1 ) 本發明有關於由聚四氟乙烯(PTFE )所製成而經 過單軸拉伸的模製品其可成形爲一膜,帶,紗或織維,且 有關於其製造的方法。 由於其安定性及其化學惰性,PTFE爲一有價値的 材料。AT — B3 7 0,6 7 4揭示由燒結之PTFE所 製成之經過單軸拉伸的膜其在拉伸方向之强度値爲5 Ο N /mrrf至1 4 ON/mm3之間。這些膜是由先壓縮 P TF E粉末以形成一圓筒形的模製品。然後模製品被燒 結,而膜被剝落,加熱至溫度至少3 2 7 °C並拉伸。 G B - A 2 0 2 5 8 3 5敘述以漿—擠壓方法製造 有孔PTFE模製品,一漿狀組成物含有PTFE粉末及 一潤滑劑(碳氫化合物),被通過鑄模,而潤滑劑以乾燥 去除。然後模製品被加熱至PTFE之結晶融點(3 2 7 °C )以上並在加熱時拉伸。 AT — B3 9 1 ,4 7 3揭示製造由PTFE所製成 之經過單軸拉伸的模製品之方法,一漿狀PTFE組成物 被連績地處理以形成一造形其被導至許多滾简或辊子上並 被加熱及拉伸,造形在施以拉伸前被加熱至3 2 7與 4 5 0 °C之間的一溫度並燒結。此方法可製造由PTFE 之經過單軸拉伸的模製品,在拉伸方向中之强度値爲至少 22CN/tex(500N/mm1)。 已知根據 US— A— 2,8 9 3,1 0 5 及 US— A —2 ,9 3 3 ,1 5 4由矩陣紡絲製成之PTFE多絲紗 及由AT — B—3 4 0,5 6 1之間隙剝落方法所製造者 "(請先吡讀背面之注意事項 裝----- "·寫本頁) 、11 線 本紙張尺度適用中國國家標準(CNS)A4规格(210X 297公釐) ^23294 A7 B7 經濟部中央標準局貝工消費合作社印製 五、發明説明(2 ) 可被用來製造塡料壓盖之褶線。由AT—B— 3 4 7,0 0 3可更知道如何以PTFE及石墨覆盖這種 紗以改良滑動特性。 又已知由漿擠壓,以PTFE分散劑浸溃及以石蜡油 潤滑之定向但未燒結之膜帶被用來製造塡料壓盖。這些膜 帶在含有石墨塡充物時也可在商業上獲得。 全部道些塡有石墨之產物之缺點爲用來增加滑動特性 之石墨塡充物爲黑色,而使這些產物不能被使用在工業的 某些區域中。另外,這些產物具有高的流動趦勢(冷流) 而自然地增加了磨耗。另一缺點爲經過單軸拉伸而只塡有 石墨的棋製品之强度値小於1 OCN/t ex。 本發明之目棵爲消除道些缺點,加宽PTFE材料之 應用性並提供比一塡有石墨之P T F E模製品更具有光色 及髙强度及低冷流之經單軸拉伸之模製品。應更可製造具 有不同滑動特性之該PTFE模製品。 根據本發明之由聚四氟乙烯(PTFE )所製成之經 單軸拉伸的模製品之特徵爲它含有滑石及/或雲母及/或 耐高溫聚亞胺及/或白粉作爲塡料,且强度値爲至少1 0 CN/t ex而較佳的爲大於1 6CN/t ex。至於在 EP-A— 0 119 185 及 US-A-3,985, 9 3 4中揭示之耐高溫聚亞胺爲特別適合者。 以漿擠壓混合P T F E粉末與該塡料令人驚異地可成 功的處理成例如膜,沈稹道些膜並再拉伸之,雖然有塡料 存在仍可達成非常高的强度値。一未裝塡之PTFE紗( 本紙張尺度適用中國國家標準(CNS)A4規格(2丨ΟΧ 297公釐) ----- ' (請先M*讀背面之注意事項ί'>Λ寫本頁) 裝· 'ΤΓ 線 A7 B7 經濟邾中央標準局員工消费合作社印製 五、發明説明(3 ) 根據AT — B - 3 7 0,6 4 7製造者)之强度値爲5與 1 5 CN/t ex之間,而根據本發明製造的裝塡之紗强 度値可高至2 5 CN/t ex。根據本發明之模製品可含 有高至4 0 %重量之塡料。斷時抗張强度之降低伴隨著斷 時延伸之降低及抗蟠變之增髙,其爲使用紗爲塡料壓蓋之 密封的一重要特性。 根據本發明之模製品可含有高至4 0 %重量之塡料而 不越過所示之最低强度1 〇CN/t ex。 根據本發明之棋製品之實施例之特徵爲其包含作爲塡 料之滑石及/或雲母及/或耐髙溫聚亞胺於2 0與3 0% 重量之間。此一模製品具有好的滑動特性。根據D I N 5 3 3 7 4所作的測1:顯示由純PTFE所製成之紗具 有動磨擦値("P)約150 (110 — 200),具有 石墨爲塡料之紗的値爲5 0與1 0 0之間而具有滑石爲塡 料之根據本發明之紗的値爲3 0與7 0之間。 如果根據本發明之模製品有不大於3 0 %之延伸度, 它極適於作爲用來密封軸(在塡料壓蓋之殻內)的泵中材 料。在以前有石墨塡料的PT F E模製品爲此目的被使用 。這些已知之模製品具有不足的耐蟠變及高磨耗,故在石 墨塡料之情況中因磨損而有黑色由塡料壓蓋之般洩漏而會 弄髒並污染被密封的淺色液體。根據本發明之模製品之實 施例未出現任何這些缺點。 如果根據本發明之模製品被形成爲一紗,它可被用於 製造褶密封。 "(請先M-讀背面之注意事項h 反寫本頁) 裝 訂 線 本紙張尺度適用中國國家標準(CNS)A4规格(210X297公釐) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(4 ) 根據本發明之棋製品之另一實施例之特徵爲其含有作 爲塡料之白粉至少5%重置。經顔示白粉增加動磨擦p p 爲至少2 0 0,使得材料可逋於使用在褥要高動磨擦之處 0 根據本發明之棋製品之一較佳實施例之特徵爲其只含 有白粉作爲塡料且其爲牙線之形態。經顯示使用根據本發 明的牙線比習知技藝之牙線更能保持牙床。調整白粉之置 後牙線之動磨擦可被改進。實驗顯示含白粉0. 1至15 %重置之牙線特別合逋。 本發明更有關製造根據本發明之棋製品的方法,該方 法之特徵爲合併下面的特點 (a )聚四氟乙烯粉末被混合於滑石及/或雲母及/或一 耐高溫聚亞胺及^/或白粉及一碳氫化合物, (b) 獲得之混合物被形成一預成形品並釋出碳氫化合物 , (c) 釋出碳氫化合物之預成形品被燒結並於燒結之狀態 被再拉伸。 塡料較佳的是以不超過模製品之4 0 %重量之量被使 用0 預成形品被加熱至溫度至少3 2 7 °C及較佳的爲 3 8 0與4 0 0 °C之間以被燒結。 爲了達成根據本發明之模製品之所示强度値,燒結之 預成形品較佳的是以1 : 5與1 : 2 0之間的比率,較佳 的是1:5與1:15之間被拉伸。 本紙張尺度適用中國國家標準(CNS)A4规格(210X297公釐) (請先订讀背面之注意事項SK"寫本頁) 裝 線 323294 A7 B7 經濟部中央橾準局員工消费合作社印製 五、發明説明(5 ) 在根據本發明之方法之一特殊實施例中,預成形品爲 一膜其在燒結與拉伸以後被切成帶,而這些帶可以一針滾 筒作嫌維處理。 本發明之較佳實施例以下面的例子作較詳細的說明。 本發明之模製品是使用在AT — B 3 9 1 ,4 7 3中揭示 之燒結與拉伸設備被製造的。 例1 1 0 0份重之商業上可得之Hochst AG之 PTFE粉末Hostaflon TF 2 0 2 9被混合於2 5份滑 石(NaintschA — 3 0)及30份之通常使用於漿擠壓 中之潤滑劑(具沸點1 8 6 — 2 1 4°C之碳氫化合物)並 壓縮爲園简形模製品。這些園简形物被再壓縮爲一束,再 滾成爲一膜並以乾燥釋出潤滑劑。乾燥之膜於3 8 5 °C之 溫度被燒結再以1:7之比率被拉伸。一具有好的滑動特 性及强度21. 3CN/tex於6. 5%延伸度之令人 驚奇的軟膜(30-38 ShoreD)被獲得。 例2 7 0 份之 Hostaflon TF 2 0 2 9 之 PTFE 粉末 被混合於3 0份滑石A - 3 0及3 0份潤滑劑並滾成爲一 膜,以例1中相同的方式乾燥,燒結並拉伸。强度爲 19. 5CN/tex於5. 5%之延伸度。 ,(請先ΚΓ讀背面之注意事項 \寫本頁) 裝 f 線 本紙張尺度適用中國國家標準(CNS)A4规格(210X297公釐) A7 B7 經濟部中央標準局員工消费合作社印製 五、發明説明(6 ) 例3 在例1中敘述之一混合物如例1中相同的方式被處理 爲一膜但於3 9 5 °C被燒結並再以1 : 8_ 5之比率被拉 伸。强度値爲24. 5CN/tex於5%延伸度。然後 膜受到嫌維處理並浸以2 2 %蜡油。 最後的產物爲一多絲紗形態其可直接被處理爲褶線。 石蜡油是作爲潤滑劑的。 例4 1 〇 〇 份之 Algcflon DF 2 0 0 PTFE 粉末( 製造者:Ausimont S.P.A )被混合於4 7份滑石A-6 0及3 0份潤滑油並處理爲一膜。該膜於3 9 0 °C被燒 結並以1 : 6之比率被拉伸。獲得膜之强度爲1 6 CN/ tex於8%延伸度。 例5 在例4中敘述之一混合物以相同的方式被處理成爲一 膜但於3 9 5 °C被燒並以1 : 7之比率被拉伸。强度爲 17. 5CN/tex於5%之延伸度。在拉伸以後,膜 被再娥維化並浸以2 0 %石蜡油。 例6 7 5 份 Hostaflon TF 2 0 2 9 PTFE 粉末被 混合於2 5份雲母及2 7份潤滑劑並以例1中敘述之相同 本紙張尺度速用中國國家標準(CNS)A4規格(210X297公釐) •(請先ΐ?讀背面之注意事項 裝…· · 〜寫本頁) 訂 f 線 323294 A7 B7 五、發明説明(7 ) 方式處理成一膜並拉伸。强度爲1 6 . 5 CN/t e X於 8 . 5 %之延伸度。 例7 1 0 0 份 Algoflon DF 2 0 0 PTFE 粉末被混 合於1 0份白粉及2 5份潤滑劑並處理爲一膜。該膜於 3 9 0 °C被燒結並以1 : 1 3. 5之比率被拉伸而切爲帶 。獲得之带的强度爲26CN/tex於4. 5%之延伸 度。加入白粉後,產物之動摩擦被增加。產物可作爲牙線 (請先^讀背面之注意事項 垃窝本頁) 裝. 1Τ 線 經濟部中央標準局貝工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐)
Claims (1)
- 8888 ABCD經濟部中夬揉準扃負工消费合作社印氧 六、申請專利範圍 附件第8 3 1 0 9 5 8 3號專利申請案 中文申請專利範麵修正本 民國8 6年8月修正 ~種由聚四氟乙烯(PTFE)所製成之經單軸 拉伸的棋製品,其含有〇. 1至40 %重董之滑石及/或 S母及/或—耐髙溫聚亞胺及/或白粉作爲塡料,且在拉 伸方向中之强度値爲至少1〇CN/tex。 2 ·如申請專利範園第i項之模製品,其特徽爲它含 有2 0至3 0 %重量之滑石及/或雲母及/或一耐高溫聚 亞胺作爲塡料。 3 如申請專利範圍第1項之棋製品,其特徴爲它含 有至少5%重量之白粉作爲塡料。 4.如申請專利範圍第1至3項中任一項之模製品, 其特徽爲它的延伸度不大於30%。 5 .如申請專利範園第i項之模製品,其特、徵爲它只 含有白粉作爲填料且它爲牙線之形態。 6 如申請專利範圍第5項之模製品,其特徵爲它含 有0. 1至15%重:t之白粉。 7. —種申腈專利範園第1項之模製品的製造方法, 其特徽爲合併下面的特點 (a )聚四氟乙烯被混合於作爲塡料之滑石及/或雲母及 /或一耐髙溫聚亞胺及/或白粉以及一碳氫化合物 本紙張尺度適用中國國家揉準(CNS ) A4规格(210X297公釐) (請先閱讀背面之注意Ϋ項再填寫本頁)4 A8 B8 C8 D8 夂、申請專利範圍 i b )獏得之混合物被形成爲一預成形物並釋出碳氫化合 物, (c )釋出碳氫化合物之預成形物被燒結並於燒結之狀態 再被拉伸, 其中塡料被使用之置爲不超過模製品之4 0 %重置, 且 預成形物被加熱至溫度至少3 27 °p而較佳的爲 3 8 0與4 〇 之間以被燒結。 8 .如申請專利範圍第7項之方法,其特徵爲燒結之 預成形物以1 : 5與1 : 2 0之間的比率而較佳的爲1 : 5與1 : 1 5之間被拉伸。 9.如申請專利範園第7項之方法,其特徵爲預成形 物爲一膜其在被燒結與拉伸以後被切成爲帶。 1 0.如申請專利範園第9項之方法,其特徵爲燒結 與拉伸之帶受到一織維化處理。 Ji—,*---^—(装— (請先閲讀背面之注$項再填寫本頁) 經濟部中央標準局貞工消费合作社印装 本紙張尺度適用中國國家橾率(CNS)A4规格(210x297公釐J 2 -
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CN114479324A (zh) * | 2022-03-08 | 2022-05-13 | 山东森荣新材料股份有限公司 | 一种高频覆铜板用ptfe保护膜及其制备工艺 |
CN117283920A (zh) * | 2023-09-07 | 2023-12-26 | 山东森荣新材料股份有限公司 | 聚四氟乙烯牙线的制备方法 |
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-
1993
- 1993-11-03 AT AT222193A patent/AT399882B/de not_active IP Right Cessation
-
1994
- 1994-09-28 AT AT94927440T patent/ATE181377T1/de active
- 1994-09-28 RU RU95115559/04A patent/RU2135531C1/ru not_active IP Right Cessation
- 1994-09-28 EP EP19940927440 patent/EP0677120B1/de not_active Expired - Lifetime
- 1994-09-28 CN CN94191089A patent/CN1065929C/zh not_active Expired - Fee Related
- 1994-09-28 WO PCT/AT1994/000139 patent/WO1995012698A1/de active IP Right Grant
- 1994-09-28 DE DE59408419T patent/DE59408419D1/de not_active Expired - Fee Related
- 1994-09-28 US US08/481,244 patent/US5804290A/en not_active Expired - Lifetime
- 1994-09-28 KR KR1019950702738A patent/KR100330805B1/ko not_active IP Right Cessation
- 1994-09-28 BR BR9406468A patent/BR9406468A/pt not_active IP Right Cessation
- 1994-09-28 JP JP51290595A patent/JPH08505430A/ja active Pending
- 1994-10-15 TW TW83109583A patent/TW323294B/zh active
Also Published As
Publication number | Publication date |
---|---|
AT399882B (de) | 1995-08-25 |
WO1995012698A1 (de) | 1995-05-11 |
KR100330805B1 (ko) | 2002-11-22 |
RU2135531C1 (ru) | 1999-08-27 |
EP0677120A1 (de) | 1995-10-18 |
RU95115559A (ru) | 1997-06-10 |
KR960700364A (ko) | 1996-01-20 |
CN1117299A (zh) | 1996-02-21 |
DE59408419D1 (de) | 1999-07-22 |
BR9406468A (pt) | 1996-01-23 |
ATA222193A (de) | 1994-12-15 |
EP0677120B1 (de) | 1999-06-16 |
ATE181377T1 (de) | 1999-07-15 |
JPH08505430A (ja) | 1996-06-11 |
US5804290A (en) | 1998-09-08 |
CN1065929C (zh) | 2001-05-16 |
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