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13 条记录 (耗时 0.013 秒)

    PROCESS TO PREPARE TWO PHASE FOAM COMPOSITIONS
    3.
    发明公开
    PROCESS TO PREPARE TWO PHASE FOAM COMPOSITIONS 失效
    方法产生泡沫相组合物

    公开(公告)号：EP0861287A1

    公开(公告)日：1998-09-02

    申请号：EP96940560.0

    申请日：1996-11-15

    申请人： SHELL OIL COMPANY

    发明人： BROWNSCOMBE, Thomas, Fairchild ,  BASS, Ronald, Marshall ,  WONG, Pui, Kwan ,  BLYTAS, George, Constantine ,  GERGEN, William, Peter ,  MORES, Maryanne

    IPC分类号： A61F13 ,  A61L15 ,  C08J9

    CPC分类号： C08J9/283 ,  A61F13/15203 ,  A61L15/425

    摘要： A process is provided for the production of a porous cross-linked polymeric foam comprising the steps of: (a) providing a first water-in-oil emulsion comprising (i) a first mixture of polymerizable monomers comprising at least one oil-soluble vinyl monomer and from about 2 to about 70 weight percent, based on the mixture, of a multifunctional unsaturated cross-linking monomer, (ii) at least 70 weight percent, based on the emulsion, of water as the internal phase, (iii) an effective amount to produce the water-in-oil emulsion of a first surfactant, and (iv) a first polymerization initiator; (b) providing a second water-in-oil emulsion comprising (i) a mixture of polymerizable monomers comprising at least one oil-soluble vinyl monomer and from about 2 to about 70 weight percent, based on the mixture, of a second multifunctional unsaturated cross-linking monomer, (ii) at least 70 weight percent, based on the emulsion, of water as the internal phase, (iii) an effective amount to produce the water-in-oil emulsion of a second surfactant, and (iv) a second polymerization initiator; (c) combining the first and second emulsions; and (d) curving said polymerizable monomers under conditions effective to polymerize and cross-link the polymer prior to significant diffusion between the emulsions. Polymeric foams can be prepared by this process that exhibit positive attributes of foams formed by curing of each of the emulsions individually.

    PROCESS TO PREPARE FOAMS FROM HIGH INTERNAL PHASE EMULSIONS
    6.
    发明授权
    PROCESS TO PREPARE FOAMS FROM HIGH INTERNAL PHASE EMULSIONS 失效
    用于生产泡沫从BIG HEARTS相乳液

    公开(公告)号：EP0876423B1

    公开(公告)日：2000-03-15

    申请号：EP97903088.9

    申请日：1997-01-24

    申请人： SHELL OIL COMPANY

    发明人： NATHOO, Nazim, Safarali ,  BROWNSCOMBE, Thomas, Fairchild ,  BASS, Ronald, Marshall

    IPC分类号： C08J9/28 ,  B29C39/16

    CPC分类号： C08J9/283 ,  B29C44/3215 ,  B29C44/334 ,  C08J2201/028 ,  C08J2201/0504

    摘要： A process is provided for curing a high internal phase emulsion to form a porous crosslinked polymeric material, comprising the steps of: forming a high internal phase emulsion having at least one curable phase; providing a continuous strip of polymeric film wherein the polymeric film is incompatible with each of the phase of emulsion; placing at least a portion of the emulsion continuously on the polymer film; closing the polymeric film around the emulsion; spiraling the emulsion in the polymeric film onto a spool, wherein the spool rotates about an essentially vertical axis for storage of the emulsion during curing; and curing the emulsion within the polymeric film on the spool. Apparatuses to perform this process are also disclosed.

    METHOD AND APPARATUS FOR DETERMINING TIRE INFLATION STATUS
    9.
    发明公开
    METHOD AND APPARATUS FOR DETERMINING TIRE INFLATION STATUS 失效
    方法和系统，用于确定REIFENFÜLLZUSTANDES

    公开(公告)号：EP0931251A1

    公开(公告)日：1999-07-28

    申请号：EP98902843.0

    申请日：1998-01-28

    申请人： SHELL OIL COMPANY

    发明人： BASS, Ronald, Marshall

    IPC分类号： G01L17

    CPC分类号： G01L17/005

    摘要： An apparatus for determining the inflation status of a vehicle tire (30) while the tire is attached to a vehicle, comprising: a scale plate (10) installed in a road surface, which scale plate (10) is supported by load cells (14a, 14c) and recording means connected to the load cells (14a, 14c) for recording the weight on the scale plate (10) with respect to time; a deformation bar (20) located in the road surface and supported by the load cells (14a, 14c), which deformation bar (20) is raised above the road surface and adapted to deform the tire when it rolls over the deformation bar (20) and recording means connected to the load cells (14a, 14c) for recording the weight on the deformation bar (20) with respect to time; means for calculating a ratio R by dividing the maximum X of the weight on the deformation bar (20) with respect to time when the tire (30) is rolling over the deformation bar (20) by the maximum Y of the weight on the scale plate (10) with respect to time when the tire (30) is rolling on the scale plate (10); and means for comparing the ratio R with a ratio corresponding to a minimum acceptable inflation pressure for the tire (30).

    PROCESS TO PREPARE LOW DENSITY POROUS CROSSLINKED POLYMERIC MATERIALS
    10.
    发明公开
    PROCESS TO PREPARE LOW DENSITY POROUS CROSSLINKED POLYMERIC MATERIALS 失效
    工艺，一种生产多孔交联聚合物具有低密度

    公开(公告)号：EP0902805A1

    公开(公告)日：1999-03-24

    申请号：EP97925742.0

    申请日：1997-05-27

    申请人： SHELL OIL COMPANY

    发明人： BASS, Ronald, Marshall ,  BROWNSCOMBE, Thomas, Fairchild

    IPC分类号： C08F2 ,  C08J9

    CPC分类号： C08F2/32 ,  C08J9/28 ,  C08J2201/028 ,  C08J2201/0504

    摘要： Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators are obtained, useful in producing low density porous crosslinked polymeric materials by using a surfactant system containing (a) an anionic surfactant, the anionic surfactant having an oil soluble tail and an anionic functional group and (b) one or more quaternary salts having one or more hydrocarbon groups having greater than or equal to 8 carbon atoms. A water-in-oil emulsion can be formed with lower surfactant concentration than sorbitan fatty acid ester alone and improved surfactant performance at elevated temperatures is obtained.