Coating a substrate with an ionomer
    5.
    发明授权
    Coating a substrate with an ionomer 失效
    用离聚物涂覆基材

    公开(公告)号:US5190797A

    公开(公告)日:1993-03-02

    申请号:US720042

    申请日:1991-06-24

    IPC分类号: B01J2/00 B01J2/28 C05G3/00

    CPC分类号: B01J2/28 B01J2/006 C05G3/0029

    摘要: The present invention relates to a process for the encapsulation of a solid substrate with a neutralized sulfonated polymer, which comprises the steps of: (a) forming a solution of a non-conjugated, diene polymer in a solvent selected from the group consisting of aliphatic, aromatic hydrocarbons and mixtures thereof; (b) contacting the solution of the unsaturated polymer with a sulfonating agent at a sufficient temperature and for a sufficient period of time to form a solution of a sulfonated polymer containing free acid; (c) forming a solution of a base selected from the group consisting of alkali metal hydroxides and mixtures thereof in a mixtrue of an aliphatic alcohol and a hydrocarbon, the hydrocarbon being selected from the group consisting of aliphatic and aromatic hydrocarbons and mixtures thereof; (d) adding the solution of base to the solution of sulfonated polymer in an amount sufficient to neutralize the polymer and the free acid, thereby forming a coating solution; (e) contacting the solid substrate with the coating solution while removing the solvent therefrom, thereby forming an encapsulated substrate. In a preferred embodiment, the solvent removed during step (e) is recovered and distilled to separate the solvent into at least two fractions, a fraction containing substantially hydrocarbon and an alcohol containing fraction. The separated solvents are then recycled to dissolve the polymer in step (a) and to dissolve the base in step (c).

    摘要翻译: 本发明涉及用中和的磺化聚合物包封固体基质的方法,其包括以下步骤:(a)在选自脂肪族的溶剂中的溶剂中形成非共轭二烯聚合物的溶液 ,芳族烃及其混合物; (b)在足够的温度下将不饱和聚合物的溶液与磺化剂接触足够的时间以形成含有游离酸的磺化聚合物的溶液; (c)在脂族醇和烃的混合物中形成选自碱金属氢氧化物及其混合物的碱的溶液,所述烃选自脂族和芳族烃及其混合物; (d)将碱溶液以足以中和聚合物和游离酸的量向磺化聚合物溶液中加入,从而形成涂布溶液; (e)将固体基质与涂布溶液接触,同时从其中除去溶剂,由此形成封装的基材。 在优选的实施方案中,回收步骤(e)中除去的溶剂并蒸馏以将溶剂分离成至少两个馏分,基本上含有烃和含醇的馏分。 然后将分离的溶剂再循环以在步骤(a)中溶解聚合物并在步骤(c)中溶解碱。

    Encapsulated breaker chemical
    6.
    发明授权
    Encapsulated breaker chemical 失效
    封装式断路器化学品

    公开(公告)号:US5102558A

    公开(公告)日:1992-04-07

    申请号:US637401

    申请日:1991-01-04

    IPC分类号: C09K8/62 C09K8/92

    摘要: An encapsulated breaker chemical composition used in a fracturing process in the protection of an oil or gas stimulation operation which comprises: a breaker chemical; and a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical, wherein the neutralized sulfonated polymer is permeable to the breaker chemical and the neutralized sulfonated polymer is non-reactive to the breaker chemical.

    摘要翻译: 一种用于压裂过程中用于保护油或气体刺激操作的封装的破碎剂化学组合物,其包括:破碎剂化学品; 以及沉积在破碎剂化学品的表面上的约2至约80微米厚的中和的磺化弹性体聚合物的无针孔涂层,其中所述中和的磺化聚合物封装破碎剂化学品,其中中和的磺化聚合物对破碎剂化学品是可渗透的, 中和的磺化聚合物与破碎剂化学品无反应性。

    Composition comprising polymer encapsulant for sealing layer
encapsulated substrate
    7.
    发明授权
    Composition comprising polymer encapsulant for sealing layer encapsulated substrate 失效
    包含聚合物密封剂的组合物,用于密封层封装的基材

    公开(公告)号:US5204183A

    公开(公告)日:1993-04-20

    申请号:US816915

    申请日:1992-01-03

    IPC分类号: C09K8/62 C09K8/92

    摘要: An encapsulated breaker chemical composition used in a fracturing process in an oil or gas stimulation operation which comprises: (a) a breaker chemical; (b) a water soluble sealing layer, such as urea, having a thickness within the range of about 1 to about 30 microns deposited on the surface of said breaker chemical and encapsulating said breaker chemical; and (c) a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the coated breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical and is permeable to the breaker chemical.

    摘要翻译: 一种用于油或气体刺激操作中的压裂过程中的封装的破碎剂化学组合物,其包括:(a)破碎剂化学品; (b)沉积在所述破碎剂化学品的表面上并包封所述破碎剂化学品的水溶性密封层,例如尿素,其厚度在约1至约30微米的范围内; 并且(c)沉积在涂覆的破碎剂化学品的表面上的约2至约80微米厚的中和的磺化弹性体聚合物的无针孔涂层,其中所述中和的磺化聚合物封装破坏剂化学品并且对于破碎剂化学品是可渗透的。

    Encapsulated breaker chemical with a multi-coat layer urea
    9.
    发明授权
    Encapsulated breaker chemical with a multi-coat layer urea 失效
    带有多层尿布的封闭式断路器化学品

    公开(公告)号:US5102559A

    公开(公告)日:1992-04-07

    申请号:US637391

    申请日:1991-01-04

    IPC分类号: C09K8/62 C09K8/92

    摘要: An encapsulated breaker chemical composition used in a fracturing process in an oil or gas stimulation operation which comprises: (a) a breaker chemical; (b) a water soluble sealing layer, such as urea, having a thickness within the range of about 1 to about 30 microns deposited on the surface of said breaker chemical and encapsulating said breaker chemical; and (c) a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the coated breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical and is permeable to the breaker chemical.

    摘要翻译: 一种用于油或气体刺激操作中的压裂过程中的封装的破碎剂化学组合物,其包括:(a)破碎剂化学品; (b)沉积在所述破碎剂化学品的表面上并包封所述破碎剂化学品的水溶性密封层,例如尿素,其厚度在约1至约30微米的范围内; 并且(c)沉积在涂覆的破碎剂化学品的表面上的约2至约80微米厚的中和的磺化弹性体聚合物的无针孔涂层,其中所述中和的磺化聚合物封装破坏剂化学品并且对于破碎剂化学品是可渗透的。

    Coatings with sulfonated polymers
    10.
    发明授权
    Coatings with sulfonated polymers 失效
    涂料与磺化聚合物

    公开(公告)号:US4988377A

    公开(公告)日:1991-01-29

    申请号:US387059

    申请日:1989-07-31

    IPC分类号: C05C9/00 C05G3/00

    CPC分类号: C05G3/0029 C05C9/005

    摘要: A composite comprising a substrate and an elastomeric coating adhered to at least one surface of said substrate, said elastomeric coating having a thickness of about 1 to about 100 micrometers, wherein said elastomeric coating comprises a neutralized sulfonated polymer having a sulfonate content of about 4 to about 200 meq. per 100 grams of said neutralized sulfonated polymer.

    摘要翻译: 一种复合材料,其包括粘附到所述基材的至少一个表面上的基材和弹性体涂层,所述弹性体涂层具有约1至约100微米的厚度,其中所述弹性体涂层包含中和的磺化聚合物,其磺酸盐含量为约4至 约200毫克 每100克所述中和的磺化聚合物。