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11.
公开(公告)号:US4912166A
公开(公告)日:1990-03-27
申请号:US261738
申请日:1988-10-26
申请人: Charles W. Stewart
发明人: Charles W. Stewart
CPC分类号: C08L27/18
摘要: A blend of tetrafluoroethylene and a poly(oxy-p-phenyleneisophthaloyl-phenylene/oxy-p-phenyleneterephthaloyl- p-phenylene) (PEKK) results in improved processing of the fluoroelastomer at temperatures below the melting temperature of the PEKK and improves physical properties of cured fluoroelastomer.
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公开(公告)号:US4713418A
公开(公告)日:1987-12-15
申请号:US805543
申请日:1985-12-06
CPC分类号: C08L27/18
摘要: A composition and method for preparing it is disclosed. The composition in a blend of a cured fluoroelastomer which except for the cure sites is a perfluorocarbon and a thermoplastic copolymer of tetrafluoroethylene which is present as generally spherical particles having a particle size of less than 10 microns. The composition is prepared by blending the fluoroelastomer and thermoplastic copolymer at a temperature above the melting point of the thermoplastic copolymer followed by curing the fluoroelastomer.
摘要翻译: 公开了一种制备组合物和方法。 除了固化部位之外的固化的含氟弹性体的共混物中的组合物是全氟化碳和四氟乙烯的热塑性共聚物,其作为通常为粒径小于10微米的球形颗粒存在。 通过在高于热塑性共聚物的熔点的温度下混合含氟弹性体和热塑性共聚物,然后固化含氟弹性体来制备组合物。
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公开(公告)号:US5637663A
公开(公告)日:1997-06-10
申请号:US596932
申请日:1996-02-05
申请人: Colin Anolick , Viacheslav A. Petrov , Bruce E. Smart , Charles W. Stewart , Robert C. Wheland , William B. Farnham , Andrew E. Feiring , Weiming Qiu
发明人: Colin Anolick , Viacheslav A. Petrov , Bruce E. Smart , Charles W. Stewart , Robert C. Wheland , William B. Farnham , Andrew E. Feiring , Weiming Qiu
IPC分类号: C07C317/04 , C08F214/18 , C08F214/22 , C08F214/26 , C08F214/28 , C08L23/02 , C08L27/18 , C09D127/20 , C08F14/18
CPC分类号: C09D127/20 , C07C317/04 , C08F214/18 , C08F214/22 , C08F214/26 , C08F214/265 , C08F214/28 , C08L23/02 , C08L23/06 , C08L27/18
摘要: Disclosed herein are novel amorphous tetrafluoroethylene-hexafluoropropylene (TFE-HFP) dipolymers, and other copolymers containing TFE, HFP and a third monomer, many of which are more random than previous amorphous TFE-HFP copolymers, as well as a novel high productivity continuous process for making these polymers. The polymers are particularly useful in the form of coatings, films and encapsulants.
摘要翻译: 本文公开了新型无定形四氟乙烯 - 六氟丙烯(TFE-HFP)二元聚合物,以及含有TFE,HFP和第三单体的其它共聚物,其中许多比以前的无定形TFE-HFP共聚物更随机,以及新颖的高生产率连续方法 用于制备这些聚合物。 聚合物特别可用于涂料,薄膜和密封剂的形式。
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公开(公告)号:US4503192A
公开(公告)日:1985-03-05
申请号:US568888
申请日:1984-01-06
IPC分类号: C08K3/22 , C08L1/00 , C08L23/00 , C08L23/06 , C08L23/26 , C08L23/28 , C08L23/34 , C08L27/00 , C08L101/00
CPC分类号: C08L23/286 , C08L23/34 , C08L23/06
摘要: Blends of elastomers of chlorinated or chlorosulfonated polyethylene and ultra high molecular weight, i.e. at least one million, when cured with conventional curing systems for the chlorinated or chlorosulfonated polyethylene have higher tear strengths at temperatures of about 150.degree. C. than do the unblended elastomers. The amount of polyethylene in the blend is 5 to 50 parts by weight per 100 parts by weight of elastomer. The blend, thus produced has a modulus (M.sub.100) of greater than 1000 psi prior to curing.
摘要翻译: 氯化或氯磺化聚乙烯的弹性体和超高分子量的共混物,即至少一百万,当用常规的氯化或氯磺化聚乙烯的固化体系固化时,在比共混弹性体高约150℃的温度下具有较高的撕裂强度。 共混物中的聚乙烯的量为每100重量份弹性体5至50重量份。 如此制备的共混物在固化之前的模量(M100)大于1000psi。
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公开(公告)号:US4963609A
公开(公告)日:1990-10-16
申请号:US430138
申请日:1989-11-01
IPC分类号: C08J3/12 , C08F14/24 , C08F214/24 , C08F214/26 , C08K3/20 , C08K3/22 , C08L27/12 , C08L27/18 , C08L57/00 , H01B3/44
CPC分类号: H01B3/44 , C08K3/22 , C08L27/18 , C08L2205/02 , Y10T428/2938
摘要: A low smoke and flame-resistant fluoropolymer composition, useful as insulation in a plenum cable and comprised of a base polymer of ethylene units, tetrafluoroethylene and/or chlorotrifluoroethylene units, and fluorine-containing, non-telogenic termonomer units; a metal oxide; and a polytetrafluoroethylene drip suppressant.
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公开(公告)号:US4503171A
公开(公告)日:1985-03-05
申请号:US569975
申请日:1984-01-11
申请人: Charles W. Stewart
发明人: Charles W. Stewart
CPC分类号: C08K9/04 , Y10T428/2998
摘要: Graphite particularly suitable for compounding with perfluoroelastomers having grafted thereto reactive sites having a fluorinated aromatic ring. The perfluoroelastomer blends exhibit markedly improved tensile strength while retaining the outstanding thermal and chemical stability of the perfluoroelastomers.
摘要翻译: 石墨特别适用于与具有氟化芳环的具有接枝反应性位点的全氟弹性体复配。 全氟弹性体共混物显示出显着提高的拉伸强度,同时保持全氟弹性体的出色的热和化学稳定性。
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公开(公告)号:US5478905A
公开(公告)日:1995-12-26
申请号:US384068
申请日:1995-02-06
IPC分类号: C07C313/20 , C07C317/04 , C07C317/18 , C08F214/18 , C08F214/22 , C08F214/26 , C08F214/28 , C08L23/02 , C08L27/18 , C09D123/02 , C09D127/18 , C09D127/20 , C08F14/18
CPC分类号: C09D127/20 , C07C313/20 , C07C317/04 , C07C317/18 , C08F214/18 , C08F214/22 , C08F214/26 , C08F214/265 , C08F214/28 , C08L23/02 , C08L23/06 , C09D123/02 , C09D127/18 , C08L2205/08 , C08L27/18 , C08L51/06 , C08L77/00
摘要: Disclosed herein are novel amorphous tetrafluoroethylene/hexafluoropropylene (TFE/HFP) copolymers, which are more random than previous amorphous TFE/HFP copolymers, as well as a novel high productivity continuous process for making these polymers. The polymers are particularly useful in the form of coatings, films and encapsulants.
摘要翻译: 本文公开了新型无定形四氟乙烯/六氟丙烯(TFE / HFP)共聚物,其比先前的无定形TFE / HFP共聚物更随机,以及用于制备这些聚合物的新型高生产率连续方法。 聚合物特别可用于涂料,薄膜和密封剂的形式。
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18.
公开(公告)号:US5051479A
公开(公告)日:1991-09-24
申请号:US332030
申请日:1989-04-03
摘要: A melt-processable thermoplastic composition consisting essentially of a blend of a melt processable thermoplastic fluorocarbon polymer and about 0.05 to about 0.5 percent by weight of an elastomeric copolymer of tetrafluoroethylene and a perfluoro(alkyl vinyl ether) exhibits improved processing properties.
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公开(公告)号:US4507439A
公开(公告)日:1985-03-26
申请号:US555488
申请日:1983-11-28
申请人: Charles W. Stewart
发明人: Charles W. Stewart
IPC分类号: C08L101/00 , C08L1/00 , C08L7/00 , C08L21/00 , C08L23/00 , C08L27/00 , C08L27/12 , C08L27/14 , C08L27/18 , C08L33/00 , C08L33/02 , C08L51/00 , C08L51/02 , C08L27/22 , C08L27/16
摘要: An elastomeric composition comprising an elastomer matrix having dispersed therein about 3-30 parts per 100 parts by weight of the elastomer of powdered polytetrafluoroethylene having a number average molecular weight of at least about 250,000 and a surface area of at least 1 m.sup.2 /g which has been treated with about 50-120% of sodium-naphthalene addition compound or another addition compound of an alkali metal required for the alkali metal to react with all the fluorine atoms on the surface of the polytetrafluoroethylene powder.By dispersing such treated polytetrafluoroethylene powder in elastomer matrix, one increases significantly the tear strength of the elastomer, while increasing its modulus only moderately. In this way, the processability of the elastomeric compositions is not adversely affected.
摘要翻译: 一种弹性体组合物,其包含其中分散有约3-30份的弹性体基质,每100重量份数均分子量为至少约250,000的粉末状聚四氟乙烯弹性体和表面积至少为1m 2 / g,其具有 用大约50-120%的钠 - 萘加成化合物或碱金属的另一加成化合物与聚四氟乙烯粉末表面上的全部氟原子反应。 通过将这种处理的聚四氟乙烯粉末分散在弹性体基体中,可以显着提高弹性体的撕裂强度,同时仅适度增加其模量。 以这种方式,弹性体组合物的加工性不受不利影响。
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公开(公告)号:US20160035122A1
公开(公告)日:2016-02-04
申请号:US14447794
申请日:2014-07-31
摘要: A solution for targeting a visual function using varying contrasting areas is provided. An animation including a changing figure can be generated. The changing figure can include contrasting areas having attributes that change substantially continually during the animation. For example, a location of the contrasting areas within the changing figure can be changed to create an appearance of motion of the contrasting areas within the changing figure. The shape attributes can be determined based on a target visual function, a target performance level of the target visual function, and a plurality of display attributes of a display environment for an observer. The animation can be provided for display to the observer, and an indication of whether the observer is able to perceive the changes can be received and used to assess a performance level of the visual function.
摘要翻译: 提供了使用不同对比区域来瞄准视觉功能的解决方案。 可以生成包括变化的图形的动画。 变化的人物可以包括具有在动画期间基本上连续变化的属性的对比区域。 例如,改变图中的对比区域的位置可以被改变以产生变化图中的对比区域的运动的外观。 可以基于目标视觉功能,目标视觉功能的目标性能水平以及用于观察者的显示环境的多个显示属性来确定形状属性。 可以将动画提供给观察者显示,并且可以接收观察者是否能够感知到变化的指示并用于评估视觉功能的性能水平。
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