Process for the manufacture and separation from the mold of injection
molded articles
    1.
    发明授权
    Process for the manufacture and separation from the mold of injection molded articles 失效
    用于从注塑制品的模具制造和分离的方法

    公开(公告)号:US4935187A

    公开(公告)日:1990-06-19

    申请号:US373624

    申请日:1989-06-29

    IPC分类号: B29C33/44 B29C45/43 B29K83/00

    摘要: A process for the manufacture of injection molded articles out of material that is capable of being processed in an injection molding process comprising injection fluid material into a hollow space of a mold of a desired form, hardening or reacting the injected material at raised temperatures and subsequently separating the molded article from the mold at the same high tempeature by the aid of inert gas and/or air, pressed between the molded article and the mold, which is regulated by a self readjusting conical valve.

    摘要翻译: 一种用于制造注射成型制品的方法,该材料能够在注射成型工艺中加工,包括将注射流体材料注入到所需形式的模具的中空空间中,在升高的温度下硬化或反应注射的材料,随后 借助惰性气体和/或空气在相同高温下将模制品与模具分开,压制在模制品和模具之间,该模具由自调节锥形阀调节。

    Disintegration of chromites
    2.
    发明授权
    Disintegration of chromites 失效
    铬铁矿的崩解

    公开(公告)号:US4500350A

    公开(公告)日:1985-02-19

    申请号:US766414

    申请日:1977-02-07

    IPC分类号: C01G37/14 C22B34/32 C22B1/02

    CPC分类号: C22B34/32 Y02P10/234

    摘要: In the disintegration of a chromite or chromium-containing residue, wherein the chromium-containing material is disintegrated with an alkaline compound in the presence of oxygen and a diluent at a temperature above about 800.degree. C. and thereafter leached, the improvement which comprises pre-roasting the chromium-containing material prior to addition of the alkaline compound. Pre-roasting can be effected at 400.degree. to 1200.degree. C. with addition of certain amounts of silica dioxide and/or aluminum oxide and such additives, depending on the chromium containing material, if still required, are added--prior to disintegration and leaching--in such a quantity to establish a ratio of SiO.sub.2 : AL.sub.2 O.sub.3 of about 2:1 and further a ratio, calculated on the basis of NaOH as the alkaline compound, of SiO.sub.2 : Na.sub.2 O of about 1:0.5 plus a Cr.sub.2 O.sub.3 : Na.sub.2 O ratio of about 1:2 to 1:4. Residues from previous leaching cycles can be present during disintegration as solid diluents but their contents of SiO.sub.2 and/or Al.sub.2 O.sub.3 are not taken into account in calculating the SiO.sub.2 :AL.sub.2 O.sub.3 ratios. The process gives excellent results even with starting materials relatively high in SiO.sub.2 which are difficult to disintegrate to materials of desirable properties by other methods.

    摘要翻译: 在铬铁矿或含铬残渣的分解中,其中含铬材料在氧气和稀释剂存在下在高于约800℃的温度下用碱性化合物分解,然后浸出,其改进包括预先 在加入碱性化合物之前,先将含铬材料进行焙烧。 在焙烧之前,可以在400〜1200℃下加入一定量的二氧化硅和/或氧化铝,这些添加剂根据含铬材料的添加,如果仍然需要,则在分解和浸出之前加入 - 以这样的量来确定SiO 2 :Al 2 O 3的比例为约2:1,并且还基于作为碱性化合物的NaOH计算的SiO 2 :Na 2 O的比例为约1:0.5,加上Cr 2 O 3 :Na 2 O的比例 约1:2至1:4。 以前的浸出循环中的残渣可以作为固体稀释剂在分解过程中存在,但是在计算SiO 2 :Al 2 O 3比率时不考虑其SiO 2和/或Al 2 O 3的含量。 该方法即使在SiO 2中起始材料相对较高而难以通过其它方法分解成具有所需性质的材料也能获得优异的结果。

    Production of tetraethyl ammonium perfluoroalkyl sulphonate
    3.
    发明授权
    Production of tetraethyl ammonium perfluoroalkyl sulphonate 失效
    生产全氟烷基磺酸四乙基铵

    公开(公告)号:US4168277A

    公开(公告)日:1979-09-18

    申请号:US858499

    申请日:1977-12-07

    CPC分类号: C07C309/00 C07F7/123

    摘要: Production of tetraethyl ammonium perfluoroalkyl sulphonates (C.sub.2 H.sub.5).sub.4 N.sym.R.sub.F SO.sub.3 .crclbar., wherein R.sub.F represents a perfluorinated alkyl radical with about 4 to 10 carbon atoms, by reacting crude perfluoroalkyl sulphonic acid fluoride, i.e. perfluoroalkyl sulphonic acid fluoride which has not been especially purified, with triethylamine and an ethoxy silane, preferably dimethyl diethoxy silane, methyl triethoxy silane or tetraethoxy silane in an inert solvent at temperatures of about 10.degree. to 60.degree. C., preferably about 20.degree. to 40.degree. C. The process according to the invention is particularly suitable for the production of tetraethyl ammonium perfluorooctane sulphonate.

    摘要翻译: 制备全氟烷基磺酸四乙基铵(C 2 H 5)4 N(+)RFSO 3( - ),其中RF表示具有约4至10个碳原子的全氟烷基,通过使全氟烷基磺酸氟化物即即未全氟烷基磺酸氟化物 特别是用三乙胺和乙氧基硅烷,优选二甲基二乙氧基硅烷,甲基三乙氧基硅烷或四乙氧基硅烷在惰性溶剂中,在约10℃至60℃,优选约20℃至40℃的温度下纯化。根据 本发明特别适用于生产全氟辛烷磺酸四乙基铵。

    Disintegration of silica-rich chromite
    4.
    发明授权
    Disintegration of silica-rich chromite 失效
    富含二氧化硅的铬铁矿的崩解

    公开(公告)号:US4112046A

    公开(公告)日:1978-09-05

    申请号:US747261

    申请日:1976-12-03

    CPC分类号: C22B34/32 C22B5/04 Y02P10/234

    摘要: In the disintegration of at least one chromium source selected from the group consisting of a SiO.sub.2 -containing chromite and a chromium-containing residue with an alkali compound at a temperature above about 800.degree. C in the presence of atmospheric oxygen and a lime-free diluent, followed by leaching of the mixture with at least one of water and/or a chromium (VI)-containing aqueous solution, the improvement which comprises including in the mixture to be disintegrated an aluminum compound and at least sufficient alkali to form alkali chromate and to convert the SiO.sub.2 into an alkali-aluminum silicate corresponding to the formula nMe.sub.2 O . mSiO.sub.2 . Al.sub.2 O.sub.3, wherein Me is at least one of sodium and potassium, 0.8 .ltoreq. n .ltoreq. 1.2 and 1.3 .ltoreq. m .ltoreq. 4.3.

    摘要翻译: 在大气氧气和无石灰稀释剂的存在下,在高于约800℃的温度下,将至少一种选自含SiO 2的铬铁矿和含铬残渣的铬源分解 ,然后用至少一种含水和/或含铬(VI)的水溶液浸出混合物,其改进包括在混合物中包含铝化合物和至少足够的碱以形成碱式铬酸盐, 将SiO 2转化为对应于式nMe 2 O的碱 - 硅酸铝。 mSiO2。 Al 2 O 3,其中Me是钠和钾中的至少一种,0.8≤n≤1.3且1.3≤3.4。

    Etching glass with HF and fluorine-containing surfactant
    5.
    发明授权
    Etching glass with HF and fluorine-containing surfactant 失效
    用HF和含氟表面活性剂蚀刻玻璃

    公开(公告)号:US4055458A

    公开(公告)日:1977-10-25

    申请号:US709995

    申请日:1976-07-30

    IPC分类号: C03C15/00 C03C15/02 C03C25/06

    CPC分类号: C03C15/00 C03C15/02

    摘要: In the etching of glass wherein glass is contacted with an aqueous etching bath containing hydrofluoric acid, and the glass is thereafter removed from the bath and rinsed, the improvement which comprises dissolving in the etching bath an acid-resistant wetting agent. Preferably the wetting agent contains fluorine, e.g. a perfluoralkane sulfonic acid quaternary ammonium salt, a perfluoralkane carboxylic acid salt, an alkoxylation product of a perfluoralkane sulfonamide, or the like.

    摘要翻译: 在玻璃的蚀刻中,其中玻璃与含有氢氟酸的水性蚀刻液接触,然后从浴中除去玻璃并进行漂洗,其改进包括在蚀刻浴中溶解耐酸润湿剂。 优选地,润湿剂含有氟,例如 全氟烷基磺酸季铵盐,全氟烷基羧酸盐,全氟烷基磺酰胺的烷氧基化产物等。

    Process for the electrodeposition of chrome plate using
fluorine-containing wetting agents
    8.
    发明授权
    Process for the electrodeposition of chrome plate using fluorine-containing wetting agents 失效
    使用含氟润湿剂电镀铬板的方法

    公开(公告)号:US4006064A

    公开(公告)日:1977-02-01

    申请号:US657014

    申请日:1976-02-10

    IPC分类号: C25D3/10

    CPC分类号: C25D3/10

    摘要: In the electrodeposition of a chrome layer wherein the chrome is deposited from an electrolyte solution containing a hexavalent chromium compound in the presence of a fluorine-based surfactant, the improvement which comprises employing as the fluorine-based surfactant a quaternary ammonium perfluoralkane sulfonate of the formula[R.sub.F SO.sub.3 ].sup.- [NR.sup.1 R.sup.2 R.sup.3 R.sup.4 ].sup.+in which R.sup.1,R.sup.2, R.sup.3 and R.sup.4 each individually is alkyl, alkenyl, cycloalkyl or aralkyl of up to 18 carbon atoms, or two or three of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 together with the nitrogen atom to which they are attached form a heterocyclic ring, and R.sub.F is a perfluorinated alkyl radical with 6 to 12 carbon atoms.Additives such as Na.sub.2 CO.sub.3, NaHCO.sub.3, Na.sub.2 CrO.sub.4, K.sub.2 CrO.sub.4, Na.sub.2 Cr.sub.2 O.sub.7 and K.sub.2 Cr.sub.2 O.sub.7 or water may also be admixed with the quaternary ammonium perfluoralkane sulfonate.

    摘要翻译: 在铬层的电沉积中,其中铬在含氟六价铬化合物的电解液中在氟基表面活性剂的存在下沉积,包括使用式为氟基表面活性剂的季铵全氟烷基磺酸盐 其中R 1,R 2,R 3和R 4分别是至多18个碳原子的烷基,烯基,环烷基或芳烷基,或者R 1,R 2,R 3和R 4中的两个或三个 与它们所连接的氮原子一起形成杂环,RF是具有6至12个碳原子的全氟化烷基。

    Perfluoroalkane sulfonamido-alkane phosphonic and phosphonic acid
derivatives
    9.
    发明授权
    Perfluoroalkane sulfonamido-alkane phosphonic and phosphonic acid derivatives 失效
    全氟烷烃磺酰氨基 - 烷烃膦酸衍生物

    公开(公告)号:US3970586A

    公开(公告)日:1976-07-20

    申请号:US575097

    申请日:1975-05-07

    摘要: An .omega.-perfluoroalkane sulfonamido-alkane phosphonic or phosphinic acid or salt of the formula ##EQU1## in which R.sub.F is a perfluoroalkyl radical with from 1 to 12 carbon atoms;x and n each independently is 0 or 1,Y is hydrogen or a lower aliphatic radical with up to 5 carbon atoms,Z is an aliphatic radical with up to 5 carbon atoms, a cycloaliphatic, araliphatic or aromatic radical, andR is hydrogen, an alkali metal, alkaline earth metal or ammonium radical.The compounds are useful as surfactants in depressing the surface tension of water.

    摘要翻译: ω-全氟烷烃磺酰氨基 - 烷烃膦酸或次膦酸或式Z |(O)nRF-SO2-N-(CH2)x-CHY-CH2-P ANGLE = O | HOR的盐,其中RF是全氟烷基 具有1至12个碳原子; X和N各自独立地为0或1,Y为氢或具有至多5个碳原子的低级脂族基团,Z为具有至多5个碳原子的脂族基团,脂环族,芳脂族或芳族基团,R为氢, 碱金属,碱土金属或铵基。