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    • 2. 发明专利
    • Process for producing n-halogenated organic compounds
    • IL181355A
    • 2016-07-31
    • IL18135507
    • 2007-02-15
    • ALBEMARLE CORPORATION
    • C07D20060101C07D233/72C07D233/74C07D233/82
    • The process enables highly effective N-halogenation of a compound having one or more halogenatable amido or imido functional groups in the molecule. The process involves, for example, concurrently feeding into a reactor (i) water, inorganic base, and the compound to be N-halogenated, e.g., a hydantoin, and a feed of (ii) a brominating agent and/or a chlorinating agent. The proportions of these feeds are such that the pH is kept at 5 or below or within a specified range e . g ., 5.5-8.5 and one or more of the amido or imido nitrogen atoms is substituted by a bromine or chlorine atom. A feature of the process is that it can be conducted at elevated temperatures as high as about 90°C without appreciable thermal decomposition of reactants or product. The resultant product continuously precipitates in high yield and purity. Moreover, products can be produced that are very pale yellow to almost pure white in appearance. Further, the process has been found capable of producing 1,3-dibromo-5,5-dimethylhydantoin with far larger particle sizes than previously produced on a commercial basis.
    • 6. 发明专利
    • Process for producing pelletized brominated styrenic polymers
    • IL231066A
    • 2016-07-31
    • IL23106614
    • 2014-02-20
    • ALBEMARLE CORPORATION
    • B29B20060101B29C20060101C08F20060101C08J20060101
    • The invention is directed to pellets of unadulterated brominated anionic styrenic polymer having the following characteristics: A) a bromine content of at least about 50 wt%; B) an average crush strength in the Crush Strength Test of at least about 28 pounds per square inch; C) a particle size range in which at least about 70 wt% of the pellets are retained on a standard US No. 40 sieve and no more than about 30 wt% are retained on a standard US No. 5 sieve, which pellets can be prepared by brominating at least one anionic styrenic polymer having a GPC weight average molecular weight (Mw) in the range of about 2000 to about 200,000 and a GPC polydispersity in the range of 1 to about 2. Further, the invention is directed to pellets of unadulterated brominated styrenic polymer wherein the unadulterated brominated styrenic polymer is prepared by brominating at least one free-radically produced styrenic polymer having a GPC weight average molecular weight (Mw) in the range of about 30,000 to about 500,000 and a GPC polydispersity in the range of 1 to about 10, and wherein the brominated styrenic polymer formed in said process has a bromine content of at least about 50 wt%.
    • 9. 发明专利
    • 鏈增長劑 CHAIN EXTENDERS
    • 链增长剂 CHAIN EXTENDERS
    • TW200902578A
    • 2009-01-16
    • TW097108434
    • 2008-03-11
    • 亞比馬利股份有限公司 ALBEMARLE CORPORATION
    • 李約翰 LEE, JOHN Y.保羅L 威根斯 WIGGINS, PAUL L.
    • C08G
    • C08G18/325C08G59/50
    • 本發明提供了鏈增長劑組成物。這些組成物包含了(i)N,N'-二環己基-1,6-己二胺,或者是(ii)具有二級胺基直鏈之脂肪族二級���,���-二胺。當該組成物包含(i)時,該組成物還包含一種成分係選自由(a)脂肪族二級二胺,(b)脂肪族二級二胺和脂肪族一級二胺,(c)脂肪族二亞胺,(d)芳香族一級二胺,和(e)(a)到(d)中任兩種或兩種以上的組合所構成之組群。當該組成物包含(ii)時,該組成物還包含一種成分係選自由(a)脂肪族二級二胺,(d)芳香族一級二胺,(f)具有至少一個內部二級胺基的脂肪族二級���,���-二胺,和(g)(a)、(d)和(f)中任兩種或兩種以上的組合所構成之組群。也提供了製造聚胺基甲酸酯、聚和聚-胺基甲酸酯的方法。
    • 本发明提供了链增长剂组成物。这些组成物包含了(i)N,N'-二环己基-1,6-己二胺,或者是(ii)具有二级胺基直链之脂肪族二级���,���-二胺。当该组成物包含(i)时,该组成物还包含一种成分系选自由(a)脂肪族二级二胺,(b)脂肪族二级二胺和脂肪族一级二胺,(c)脂肪族二亚胺,(d)芳香族一级二胺,和(e)(a)到(d)中任两种或两种以上的组合所构成之组群。当该组成物包含(ii)时,该组成物还包含一种成分系选自由(a)脂肪族二级二胺,(d)芳香族一级二胺,(f)具有至少一个内部二级胺基的脂肪族二级���,���-二胺,和(g)(a)、(d)和(f)中任两种或两种以上的组合所构成之组群。也提供了制造聚胺基甲酸酯、聚和聚-胺基甲酸酯的方法。