IMAGEABLE RECORDING FILMS
    72.
    发明授权
    IMAGEABLE RECORDING FILMS 失效
    记录膜FOR IMAGING

    公开(公告)号:EP0554276B1

    公开(公告)日:1997-09-17

    申请号:EP91917559.6

    申请日:1991-09-16

    发明人: LEWIS, David, F.

    IPC分类号: G03C7/00 G03C1/73 G03F7/025

    摘要: The invention relates to the exposure of a recording film to an image transmitting device and to a thermochromic polyacetylenic recording film comprising, as an imageable medium, a supported, imageable crystalline polyacetylene monomer layer in contact with an imageable polyacetylen polymer in a mole ratio of between about 1:1 and about 1000:1 which medium additionally can contain an energy absorbing, heat transferring agent having an optical absorbance at a wavelength similar to that of the image transmitting device.

    PRODUCTION OF AN ETHANOL SOLUTION OF ETHYL OR BUTYL HALF-ESTER OF A COPOLYMER
    73.
    发明授权
    PRODUCTION OF AN ETHANOL SOLUTION OF ETHYL OR BUTYL HALF-ESTER OF A COPOLYMER 失效
    制备将丁基或半酯共聚物的乙醇溶液

    公开(公告)号:EP0631600B1

    公开(公告)日:1997-06-25

    申请号:EP93906008.3

    申请日:1993-02-18

    IPC分类号: C08L31/00 C08F2/00

    CPC分类号: C08F8/14

    摘要: A process for the production of an ethanol solution of an ethyl or butyl alkyl half-ester copolymer of maleic anhydride and an alkyl vinyl ether which comprises: (a) copolymerizing the monomers in acetone as solvent by simultaneously feeding molten maleic anhydride, a molar excess of methyl vinyl ether, and a solution of a free radical initiator in acetone, into a reactor precharged with acetone, at about 68-85 °C, preferably 70-80 °C; (b) esterifying the acetone solution of said copolymer with ethanol or butanol; and (c) solvent exchanging ethanol for acetone by continuously injecting vapors of ethanol at about 85-95°C into said copolymer solution while simultaneously distilling out acetone therefrom at atmospheric pressure.

    RAPIDLY CURABLE VINYL ETHER RELEASE COATINGS
    74.
    发明授权
    RAPIDLY CURABLE VINYL ETHER RELEASE COATINGS 失效
    快速固化乙烯基醚释放涂层

    公开(公告)号:EP0656016B1

    公开(公告)日:1997-06-18

    申请号:EP93915413.4

    申请日:1993-06-18

    CPC分类号: C09D4/00 C08F216/00

    摘要: The present invention relates to a rapidly curable, silicone-free release coating composition comprising (a) between about 50 and about 95 wt. % of a vinyl ether having the formula: CnH2n+1O-CH=CH2, wherein n has a value of from 8 to 20, optionally containing a cationically polymerizable comonomer; (b) between about 5 and about 50 wt. % of a multifunctional vinyl ether monomer and (c) between about 0.1 and about 10 wt. % of an onium salt photoinitiator.

    摘要翻译: 本发明涉及可快速固化的不含硅酮的剥离涂料组合物,其包含(a)约50-约95wt。 具有下式的乙烯基醚:C n H 2n + 1 O-CH = CH 2,其中n的值为8至20,任选含有阳离子可聚合共聚单体; (b)约5至约50wt。 (c)约0.1-约10wt。%的多官能乙烯基醚单体和(c) %的鎓盐光引发剂。

    PROCESS FOR MAKING ETHANOL SOLUTIONS OF ALKYL HALF-ESTERS OF COPOLYMERS OF MALEIC ANHYDRIDE AND A C 1-C 4 ALKYL VINYL ETHER
    76.
    发明授权
    PROCESS FOR MAKING ETHANOL SOLUTIONS OF ALKYL HALF-ESTERS OF COPOLYMERS OF MALEIC ANHYDRIDE AND A C 1-C 4 ALKYL VINYL ETHER 失效
    用于生产马来酸酐以及C1-C4烷基乙烯基醚的共聚物烷基 - 半星的乙醇溶液。

    公开(公告)号:EP0545947B1

    公开(公告)日:1995-10-04

    申请号:EP91912967.6

    申请日:1991-06-28

    CPC分类号: C08J3/09 C08J2335/08

    摘要: What is described herein is a process for making ethanol solutions of alkyl half-esters of copolymers of maleic anhydride and a C1-C4 alkyl vinyl ether which are benzene and acetone-free. The invention is characterized by (a) precharging a reactor with excess C1-C4 alkyl vinyl ether as both monomer reactant and solvent, and a free radical polymerization intiator, at a reaction temperature; (b) feeding the alkyl half-ester of maleic anhydride formed by reaction of substantially one mole of maleic anhydride and substantially one mole of alkanol into the precharged reactor to form the desired alkyl half-ester of the alternating copolymer of maleic anhydride and the C1-C4 alkyl vinyl ether in excess alkyl vinyl ether as solvent; (c) cooling the reactor to room temperature; and (d) introducing ethanol solvent into the reactor and removing excess alkyl vinyl ether to form the desired half-ester copolymer in ethanol solution.

    RAPIDLY CURABLE VINYL ETHER RELEASE COATINGS.
    77.
    发明公开
    RAPIDLY CURABLE VINYL ETHER RELEASE COATINGS. 失效
    SCHNELLHÄRTAREVINYLETHERTRENNBESCHICHUNGUNG。

    公开(公告)号:EP0656016A4

    公开(公告)日:1995-09-27

    申请号:EP93915413

    申请日:1993-06-18

    CPC分类号: C09D4/00 C08F216/00

    摘要: The present invention relates to a rapidly curable, silicone-free release coating composition comprising (a) between about 50 and about 95 wt. % of a vinyl ether having the formula: CnH2n+1O-CH=CH2, wherein n has a value of from 8 to 20, optionally containing a cationically polymerizable comonomer; (b) between about 5 and about 50 wt. % of a multifunctional vinyl ether monomer and (c) between about 0.1 and about 10 wt. % of an onium salt photoinitiator.

    摘要翻译: 本发明涉及可快速固化的不含硅酮的剥离涂料组合物,其包含(a)约50-约95wt。 具有下式的乙烯基醚:C n H 2n + 1 O-CH = CH 2,其中n的值为8至20,任选含有阳离子可聚合共聚单体; (b)约5至约50wt。 (c)约0.1-约10wt。%的多官能乙烯基醚单体和(c) %的鎓盐光引发剂。

    STABILIZED AQUEOUS SOLUTION.
    78.
    发明公开
    STABILIZED AQUEOUS SOLUTION. 失效
    稳定的水溶液。

    公开(公告)号:EP0604454A4

    公开(公告)日:1995-04-26

    申请号:EP92916901

    申请日:1992-07-31

    摘要: What is provided herein is a stabilized aqueous solution of a C1-C5 alkyl vinyl ether and maleic acid copolymer which includes about 100 to 1,000 ppm of (1) an additive mixture of (a) about 30-70 % by weight of ethylenediaminetetraacetic acid EDTA and (b) about 30-70 % by weight of a secondary additive which is an organic antioxidant and/or free radical scavenger selected from t-butylhydroquinone, propyl gallate and N,N-diethylhydroxylamine; or (2) 10-500 ppm of an inorganic reducing agent such as sulfur dioxide and salts derived from sulfur dioxide and alkali metals such as sodium or potassium bisulfite, sodium or potassium metabisulfite, sodium or potassium thiosulfite, or sodium or potassium sulfite, said stabilized solution exhibiting a retention of at least about 85-90 % of its original viscosity after 3 months.

    BENZENE-FREE MALEIC ANHYDRIDE/VINYL ETHER POLYMERS.
    80.
    发明公开
    BENZENE-FREE MALEIC ANHYDRIDE/VINYL ETHER POLYMERS. 失效
    免费苯顺酐/乙烯基醚POLE CASHMERE。

    公开(公告)号:EP0593565A4

    公开(公告)日:1995-03-29

    申请号:EP92914152

    申请日:1992-06-17

    CPC分类号: C08F222/06 C08F216/18

    摘要: A process for the manufacture of benzene-free maleic anhydride/lower alkyl vinyl ether polymer having a specific viscosity ranging from about 1.0 to about 5.5 by premixing maleic anhydride and the alkyl vinyl ether in a mole ratio of between about 1:1.1 and about 1:2 in a cosolvent mixture of lower alkyl substituted benzene, a C6-8 alkane, a saturated lower alkyl ether with a lower alkyl vinyl ether as cosolvent and reacting the monomeric complexed mixture at elevated temperature and pressure in continuous contact with a peroxide initiator wherein the specific viscosity is controlled by adjusting the amount of lower alkyl vinyl ether in the cosolvent mixture. The polymeric product is recovered from the resulting slurry by vacuum drying.