会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 21. 发明授权
    • Coating composition and articles having a cured coating
    • 具有固化涂层的涂料组合物和制品
    • US5728758A
    • 1998-03-17
    • US635077
    • 1996-04-19
    • Robert A. Smith
    • Robert A. Smith
    • C08J7/04C09D129/04C09D183/04G02B1/10G02B5/23C08L29/04C08L43/04
    • C08J7/047C09D129/04C09D183/04G02B1/105G02B5/23C08J2483/00Y10T428/31507Y10T428/31598Y10T428/31663Y10T428/31667
    • Describes a coating composition for the preparation of abrasion resistant coatings consisting essentially of: (a) 5 to 35 weight percent of a silane monomer mixture of (i) C.sub.1 -C.sub.12 alkyl tri(C.sub.1 -C.sub.6)alkoxysilane and (ii) tetra(C.sub.1 -C.sub.6)alkoxysilane, the weight ratio of (i) to (ii) being from 3:1 to 1:3; (b) 1 to 9 weight percent of polyvinyl alcohol that is at least 72 percent hydrolyzed; (c) a solvating amount of lower aliphatic alcohol; (d) a catalytic amount of water-soluble acid; (e) a leveling amount of nonionic surfactant; and (f) water in an amount sufficient to form hydrolysates of the silane monomers and to solubilize the polyvinyl alcohol and acid. Further described are transparent articles and photochromic articles comprising organic polymeric host material, organic photochromic compound(s), and a cured abrasion resistant coating prepared from the coating composition.
    • 描述了用于制备耐磨涂层的涂料组合物,其基本上由以下组成:(a)5-35重量%的(i)C 1 -C 12烷基三(C 1 -C 6)烷氧基硅烷和(ii)四(C 1 -C 6)烷氧基硅烷的硅烷单体混合物 -C 6)烷氧基硅烷,(i)至(ii)的重量比为3:1至1:3; (b)1至9重量%的至少72%水解的聚乙烯醇; (c)溶剂化的低级脂族醇; (d)催化量的水溶性酸; (e)非离子表面活性剂的调配量; 和(f)水的量足以形成硅烷单体的水解产物并溶解聚乙烯醇和酸。 还描述了包含有机聚合物主体材料,有机光致变色化合物和由涂料组合物制备的固化的耐磨涂层的透明制品和光致变色制品。
    • 25. 发明授权
    • Fast curing rubber blend
    • 快速固化橡胶混合物
    • US5162425A
    • 1992-11-10
    • US590260
    • 1990-09-28
    • Paul H. SandstromEmil M. FriedmanJ. Dale Massie, IIRobert A. Smith
    • Paul H. SandstromEmil M. FriedmanJ. Dale Massie, IIRobert A. Smith
    • C08L21/00
    • C08L21/00C08L9/00C08L9/06
    • It is highly desirable to be able to cure rubbers quickly since the amount of energy required for the curing process is reduced and the number of articles that can be cured in a mold in a given time is increased. In other words, the cycle time needed to cure articles made from such a rubber is reduced and the throughput of a mold utilized in curing such a rubber is increased. Unfortunately, most attempts to accelerate the cure rate of rubber have resulted in the rubber having poor scorch safety. The present invention discloses a fast curing rubber blend having excellent scorch safety which comprises: (a) from 50 to 98 weight percent of at least one polydiene rubber, and (b) from 2 to 50 weight percent of at least one vinylpyridine copolymer comprised of repeat units which are derived from a diene monomer and vinylpyridine wherein from 1 to 75 weight percent of the repeat units in said copolymer are derived from vinylpyridine. The rubber blends of the present invention have unexpectedly been shown to have particular utility in improving tire tread traction.
    • 由于固化过程所需的能量的量减少并且在给定时间内可以在模具中固化的制品的数量增加,所以非常希望能够快速地固化橡胶。 换句话说,固化由这种橡胶制成的制品所需的循环时间减少,并且用于固化这种橡胶的模具的生产量增加。 不幸的是,大多数加速橡胶固化速度的尝试导致橡胶具有差的焦烧安全性。 本发明公开了一种具有优异的焦烧安全性的快速固化橡胶共混物,其包括:(a)50至98重量%的至少一种聚二烯橡胶,和(b)2至50重量%的至少一种乙烯基吡啶共聚物, 衍生自二烯单体和乙烯基吡啶的重复单元,其中所述共聚物中1至75重量%的重复单元衍生自乙烯基吡啶。 本发明的橡胶混合物意外地被证明在改善轮胎胎面牵引力方面具有特别的用途。