TW432082B - Isocyanate compositions for blown polyurethane foams - Google Patents

Isocyanate compositions for blown polyurethane foams Download PDF

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Publication number
TW432082B
TW432082B TW087110925A TW87110925A TW432082B TW 432082 B TW432082 B TW 432082B TW 087110925 A TW087110925 A TW 087110925A TW 87110925 A TW87110925 A TW 87110925A TW 432082 B TW432082 B TW 432082B
Authority
TW
Taiwan
Prior art keywords
light
keyboard
light guide
film
creation
Prior art date
Application number
TW087110925A
Other languages
English (en)
Inventor
Sachchida Nand Singh
Steven Burns
Original Assignee
Huntsman Int Llc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26728835&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TW432082(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Huntsman Int Llc filed Critical Huntsman Int Llc
Application granted granted Critical
Publication of TW432082B publication Critical patent/TW432082B/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
    • C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
    • C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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M432082 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種導光膜片結構，特別是指-種 發光鍵盤之單層式導光膜片結構。 【先前技術】 按目前筆記型電腦由於具有便於隨身攜帶及處理文 =料和即時通訊之功能，故而廣受市場業者及使用者之 月疋及㈣，而目前部份筆記型電腦鍵盤係採用薄型觸控 鍵盤結構’有關筆記型電腦鍵盤其主要係於字鍵之鍵帽與 j板間組裝連結有-架橋式支撐結構，而該等習知筆記型 電腦之薄型架橋式鍵盤結構具有體積超薄、重量輕巧及操 作精確之優點；經查，本國相關專利前案中，申請人公司研 發並申請獲准有：發光鍵盤之導光板及背光模組（本國專 利證書號數：M306689號）專利案，該專利案主要係於導 光板上凸設有卡合構造以利於直接組裝架橋元件，然其並 無對各別按鍵及LED光源間距作加強導光之設計，故使得 距離LED光源較遠之按鍵則顯得透光亮度明顯不足；繼而， 有關習知發光鍵盤係利用三層式導光板架構以作為鍵盤之 背光元件，即其係於一導光板之下方黏貼有一反射片纤 Χ增加向上反射之光量，而於該導光板之上方則係黏貼有 一柵格狀之遮光片（ΡΕΤ)以阻隔並導引投射光線，惟於實務 上，該下層反射片及上層遮光片之結構除了增加整體導光 板之厚度及成本外，且其在組裝時需要將三層遮光片、導 3 M432082 光板及反射片逐對準疋位並膠合成一體，其明顯增加習 知導光板組裝上的困難度，實有加以改良之必要； 有鑑於此，本案創作人遂以其多年從事電腦鍵盤之製 每及叹4貫務經驗，而積極研究改良，並經多次實物樣品 製作及測試，進而具體改良習知電腦鍵盤之導光板的上述 缺點’終致完成本創作。 【新型内容】 i 賴作絲供—種導光膜片結構，其欲解決之主要問 •題係針利知三層式導妹㈣較為㈣及多層厚度的 缺點；其欲解決之次要問題係針對習知導光鍵盤距離光源 較遠之按鍵係顯得透光亮度不足的缺點，而本創作即針對 習知發光鍵盤之導光板的問題點，而加以研發改良突 俾達到大幅簡化其導光結構及增進其鍵盤之透光效果； 本創作係一種發光鍵盤之導光膜片結構，其係將一 導光膜片組裝於一鍵盤之底面位置，纟中於該導光膜片之 #底面係印刷塗覆有一反射層，於該導光膜片之頂面係印刷 塗覆有-柵格狀之遮光層，且於該導光膜片上之適處係陣 .列佈設有複數個環凹穴構造，其中該遮光層對應於鍵盤字 鍵之適處係具有穿孔構造，俾能有效導引投射光線至字鍵 位置，本創作之單層式導光膜片具有降低厚度及組褒簡易 之效能，進而能具體增進整體發光鍵盤之均勻導光效果。 有關於本創作之構造特徵及實際功效，兹舉一較=之實 4 M432082 施例並佐以圖式”細說明如后，期使審查Μ能深入瞭解 本創作。 【實施方式】 請參閱圖1至圖3之本創作較佳施例所示，本創作係 -種發光鍵盤之導光膜片結構，其係'將—導光膜片扣組 裝於一鍵盤10之底面位置；其中， 該導光膜片20係屬於-透明塑性材質之薄膜片，於 •該導光膜片2Q之底面係'印刷塗覆有-反射層21’俾能集 春t增加反射光線之向上投射光量，於該導光膜片2〇之頂 面係印刷塗覆有-概呈栅格狀之遮光層22，且其對應於 子鍵位置係具有穿孔221構造，俾能有效遮光阻隔並導引 技射光線至其上端之字鍵，繼而，於該導光膜片Μ上對 應於字鍵位置係分別陣列佈設有複數個不同深淺度之環 凹穴201，而該複數個陣列狀之環凹穴2〇1係分別具有不 同之涑淺度及佈設密度，俾能因應其與發光源之不同距離 • 以適度地調整產生出相同的垂直反射光亮度，即由於當該 -複數個環凹穴201距離發光源較遠之狀況時，而該較遠之 複數個環凹穴201則係因應設計成具有較深之外環周面 以增加其向上垂直反射光亮度，同理，依光線亮度與光源 距離之關係，則各該環凹穴2〇1之深淺度係因應其與光源 距離而由淺至深之比例遞增，俾能調整達到使各個按鍵具 有均勻之垂直反射光亮度，俾具體增進整體鍵盤之均勻導 5 M432082 光效果；至於，該導光膜片2〇上之環凹穴2〇1導光構造 亦可以由印刷塗覆複數個油墨反光點構造替代之，其同樣 可以藉由陣列佈設複數個油墨反光點構造以達到增進其 導光效果者。 該鍵盤10係包括：數個架橋丨丨、數個透光鍵帽12、數個 透光彈性7L件14、一透光薄膜電路板15及一按鍵框板16 ; 其中，該透光鍵帽12係一概呈方形之透光按壓元件，於該 . 鍵帽12底面成型有二對稱之樞接槽121及二導滑槽122,而 鲁於其令央位置則成型有一按壓部125，且該二摇接槽121 及一導μ槽122係對應枢接於該架橋11頂緣之樞軸111及 二滑軸112，而該架橋π底緣之二滑軸113及樞軸U4則係 對應樞接在該按鍵框板丨6上之二導滑槽丨63及承接槽丨 内，而該透光之彈性元件14係頂掣於該透光鍵帽12底面之 按壓部125，其中該複數個彈性元件14係對應固設於一墊 片1 3上，而於該墊片13上係穿設有複數個透孔131，俾使該 • 墊片13得以组設於該按鍵框板16之頂面，且該彈性元件14 係對應位設於該透光薄膜電路板15及該按鍵框板16之透 孔161頂面，故而該彈性元件14内之按壓柱141係可向下按 壓觸動導通該薄膜電路板15，而該按鍵框板16之透孔i6i 則係具有導光作用； 該薄膜電路板15係一透光薄膜板上形成有若干電路 以控制按鍵輸入訊號，於該薄膜電路板15對應該透光鍵 6 M432082 帽12之中心點位置係分別形成有—電路之斷路畔⑸ 且於各該電路之斷路點151二端係分別形成有對岸之導 觸端，於該薄膜電路板15底面端緣適當位置係電性連結 有數個發光二極體LED153光源，俾提供鍵盤之導光效^ 者》 &gt;月匕 有關本創作之主要構造特徵及實際使用效能，則謹作 扼要說明如下：本創作的單層式導光膜片2〇係組装於一 發光鍵盤H)之底面，其主要係於該導光膜片2〇之頂面印 _刷塗覆有-概呈柵格狀之遮光層22,且於該導光膜片加 之底面係印刷塗覆有-反射層2卜俾能集中反射光線之 投射光量，本創作之單層式導光膜片2〇則具有降低厚度 及組裝簡易之效能，且其亦能藉由該導光膜片2〇上陣列 佈設之複數個不同深淺度之環凹穴2〇丨或印刷塗覆之油 墨反光點構造，俾能因應其與發光二極體LEDi53光源之 不同距離以適度地調整產生出相同的垂直反射光亮度’進 • 而能具體增進整體鍵盤之均勻導光效果者。 綜上所述，本創作係於發光鍵盤内組裝有一導光膜 片，且其係屬於一單層式導光膜片構造，俾達到降低整體 鍵盤厚度及增進其組裝和導光效果，是以，本創作確實具 有創新性和進步性，實已符合我國專利法有關新型專利之 申請要件的規定，爰乃依法提起專利申請。 7 M432082 【圖式簡單說明】 圖1 ··係本創作發光鍵盤之導光結構的立體分解 顯示一導光膜片組裝於一鍵盤上。刀 圖2··係圖1發光鍵盤之導光結構的局部放大 圖，其係顯示單一按鍵之組裝構造。 圖3.係圖1之導光膜片構造的剖面示意_ ° • 【主要元件符號說明】 10 :鍵盤 11 :架橋 111 ·彳區轴 112 :滑軸 113 :滑軸 114 :樞車由 12 .透光鍵帽 121 :樞接槽 籲122 :導滑槽 125 :按壓部 &quot;13 :墊片 131 :透孔 14 :彈性元件 141 :按壓杈 15 :薄膜電路板. 151 :斷路點 M432082 ---- aV λΡ 4- 新型專利說明書 (本說明書格式.順序，請勿任意更動，※記號部分請勿填寫） ※申請案號：θ q2qv3^ ※申請曰：胤2. OS ^PC分類：（5〇6F % (2006•⑽ 一、 新型名稱：（中文/英文） 發光鍵盤之導光膜片結構 二、 中文新型摘要： ， 本創作係一種發光鍵盤之導光膜另結構，其係將— 參 導光膜片組裝於一鍵盤之底面位置，其中於該導光膜片之 底面係印刷塗覆有一反射層，於該導光膜片之頂面係印刷 塗覆有一柵格狀之遮光層，且於該導光膜片上之適處係陣 列佈設有複數個環凹穴構造，其中該遮光層對應於鍵盤字 鍵之適處係具有穿孔構造，俾能有效導引投射光線至字鍵 底面位置’本創作之單層式導光膜月具有降低厚度及組裝 簡易之效能，俾能增進發光鍵盤之均勻導光效果者。 Φ三、英文新型摘要： /、、申請專利範圍： 、—種發光鍵盤之導光膜片結構，其係將—導光 獏片組裝於—鍵盤之底面位置；其中於該導光膜片之底 面係印刷塗覆有一反射層，於該導光膜片之頂面係印刷 塗覆有一柵格狀之遮光層，且於該導光膜月上之適處係 陣列佈設有複數個環凹穴構造。 2、依據申請專利範圍第丨項所述發光鍵盤之導光 、片、。構，其中該遮光層對應於鍵盤字鍵之適處係具有 穿孔構造’俾能有效導引投射光線至字鍵位置。 ▲ 3、依據申請專利範圍第2項所述發光鍵盤之導光 :片、、’。構，其中該導光膜片上之複數個環凹穴構造係上 下對應於鍵盤字鍵位置。 * 4依據申請專利範圍第1項所述發光鍵盤之導光 二片、σ構，其中於該導光膜片之頂面適處係印刷塗覆有 複數個油墨反光點構造。 5、依據申請專利範圍第2項所述發光鍵盤之導光 構’其中該㈣係包括：數個架橋、數個透光鍵 帽\數個透光彈性元件、—透光_電路板及—按鍵框 板’於錢光鍵帽底面係對應樞接於該架橋頂緣，而該 架橋底緣則係對應拖接在該按鍵框板上，而該透光彈性 凡件係頂掣於該透光鍵帽底面之按壓部，其中該複數個 、光彈!生7L件铩對應固設於一墊片上’而該墊片係組設 M432082 於該按鍵框板之頂面，且該透光彈性元件係對應位設於 該透光薄膜電路板及該按鍵框板之透孔頂面，而該按鍵 框板之透孔係上下對應於該遮光層之穿孔位置。 6、依據申請專利範圍第5項所述發光鍵盤之導光 膜片結構’其巾該透光薄財路板上形成有若干電路以於 制按鍵輸人訊號，於該薄膜電路板對應該透光鍵帽之中： 點位置係分別形成有-電路之斷路點，而該彈性㈣内之 按壓柱係、可向下按壓觸動導通㈣膜電路板，且於該薄膜 電路板底面端緣適處係電性連結有數個發光二極體LED。
TW087110925A 1997-06-13 1998-07-07 Isocyanate compositions for blown polyurethane foams TW432082B (en)

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US20030078310A1 (en) 2003-04-24
AU731538B2 (en) 2001-03-29
KR20010013695A (ko) 2001-02-26
US6455601B1 (en) 2002-09-24
DE69803669T2 (de) 2002-08-14
PL337317A1 (en) 2000-08-14
US20020022674A1 (en) 2002-02-21
EP0990006B1 (en) 2002-01-30
CN1260809A (zh) 2000-07-19
TR199902970T2 (xx) 2000-05-22
PL192466B1 (pl) 2006-10-31
ES2172159T3 (es) 2002-09-16
MY116748A (en) 2004-03-31
NZ501122A (en) 2002-04-26
EP0990006A1 (en) 2000-04-05
DE69803669D1 (de) 2002-03-14
CA2289530A1 (en) 1998-12-17
JP2002510343A (ja) 2002-04-02
US6248802B1 (en) 2001-06-19
KR100505774B1 (ko) 2005-08-04
WO1998056847A1 (en) 1998-12-17
CN1117781C (zh) 2003-08-13
AU8211998A (en) 1998-12-30
US6590005B2 (en) 2003-07-08

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