CAS: 2094-99-7; 3-Isopropenyl-Alpha,Alpha-Dimethylbenzylisocyanate

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CAS号75-13-8 异氰酸酯 | CAS号3748-13-8 1,3-二异丙烯基苯 | CAS号87771-41-3 1-(3-(2-羟基丙-2-基... | CAS号90826-32-7 2-(3-prop-1-en-... | CAS号97257-28-8 1,3-bis[2-(3-pr...

📜以 氘代氯仿 用作溶剂,化学反应 376.0H,反应生成3-异丙烯基-α,α-二甲基苄基异氰酸酯
参考文献:Hydrolyzable Polyureas Bearing Hindered Urea Bonds
标题:Hydrolyzable Polyureas Bearing Hindered Urea Bonds
摘要:Hydrolyzable Polymers Are Widely Used Materials That Have Found Numerous Applications In Biomedical,Agricultural,Plastic,And Packaging Industrials. They Usually Contain Ester And Other Hydrolyzable Bonds,Such As Anhydride,Acetal,Ketal,Or Imine,In Their Backbone Structures. Here,We Report The First Design Of Hydrolyzable Polyureas Bearing Dynamic Hindered Urea Bonds (Hubs) That Can Reversibly Dissociate To Bulky Amines And Isocyanates,The Latter Of Which Can Be Further Hydrolyzed By Water,Driving The Equilibrium To Facilitate The Degradation Of Polyureas. Polyureas Bearing 1-Tert-Butyl-1-Ethylurea Bonds That Show High Dynamicity (High Bond Dissociation Rate),In The Form Of Either Linear Polymers Or Cross-Linked Gels,Can Be Completely Degraded By Water Under Mild Conditions. Given The Simplicity And Low Cost For The Production Of Polyureas By Simply Mixing Multifunctional Bulky Amines And Isocyanates,The Versatility Of The Structures,And The Tunability Of The Degradation Profiles Of Hub-Bearing Polyureas,These Materials Are Potentially Of Very Broad Applications.
Doi:10.1021/ja5093437

专利信息

专利号:US-10294336-B2
优先权日:2014-11-27
标题 :Synthesis of polymer polyols in unsaturated polyols, polymer polyols and their use
发明人：KOENIG CHRISTIAN; EMGE ANDREAS; OTERO MARTINEZ IRAN
权利人:BASF SE
摘要:The present invention relates to the synthesis of polymer polyols in unsaturated polyols as liquid phase, polymer polyols and their use.

专利号:US-7592392-B2
优先权日:2003-04-04
标 题 :Synthesis of functional polymers for use in organic synthesis and combinatorial chemistry
发明人：LINDSLEY CRAIG W; WISNOSKI DAVID D
权利人:MERCK & CO INC
摘要:The present invention relates to a novel process for the preparation of solid-supported scavenging reagents and solid-supported functional polymers. The invention further relates to novel solid-supported functional polymers and to their use in organic synthesis and combinatorial chemistry.

专利号:WO-9013609-A1
优先权日:1989-05-01
标题 :Novel fluorescent pigment compositions and a process for their preparation and use of same
发明人：MALLAVARAPU LEO X
权利人:MALLAVARAPU LEO X
摘要:A process is disclosed for producing novel fluorescent pigment compositions with no formaldehyde or para-formaldehyde during their synthesis. The synthesis of these compositions is, for example, achieved by using an in situ reaction of epoxy resins of preferably up to a molecular weight of 20,000 with a sulfonamide compound, e.g., toluene sulfonamide, in the presence of a Lewis acid catalyst, followed by, preferably, the further reaction with an isocyanate, e.g., aliphatic isocyanate and/or para-toluene sulfonyl isocyanate. During this reaction, a fluorescent dye is incorporated into the molten mass.

专利号:US-8541524-B2
优先权日:2006-07-04
标 题 :Free-radical polymerization process in aqueous dispersion for the preparation of a block copolymer at least one block of which is a block of a halogenated polymer
发明人：FRINGANT CHRISTOPHE; VANDERVEKEN YVES; LACROIX-DESMAZES PATRICK; TONNAR JEFF
权利人:FRINGANT CHRISTOPHE; VANDERVEKEN YVES; LACROIX-DESMAZES PATRICK; TONNAR JEFF; SOLVAY
摘要:Process of controlled free-radical polymerization in aqueous dispersion for the preparation of a block copolymer at least one block of which is a block of a halogenated polymer using molecular iodine and at least one oxidant whose solubility in water is at least 10 g/l for the synthesis of the first block of the block copolymer.

专利号:US-6599972-B2
优先权日:1996-12-24
标 题 :Latex compositions containing ethylenically unsaturated esters of fatty compounds and applications thereof
发明人：THAMES SHELBY FRELAND; PANJNANI KAMLESH GOPICHAND; FRUCHEY OLAN STANLEY
权利人:UNIV SOUTHERN MISSISSIPPI
摘要:Novel latex or emulsion compositions containing internally plasticizing and crosslinkable monomers derived from traditional semi-drying or non-drying oils are disclosed and claimed. The monomers are ethylenically unsaturated derivatives of long-chain olefinic compounds. Preferred embodiments include latex formed from acrylate or methacrylate esters of fatty alcohols. A process for the synthesis of the latex composition is also disclosed, which involves (a) polymerization of the ethylenically unsaturated derivatives of a long-chain olefinic compound in an aqueous phase with at least one other copolymerizable monomer; and (b) blending of so formed polymer with at least one drier and a surfactant to form the novel latex or emulsion compositions. These compositions form films at low minimum film forming temperatures (MFT) ranging from -5 to 10° C. and cure to above ambient glass transition (Tg) polymers without the use of traditional organic cosolvents which contribute to environmental pollution via volatile organic compounds (VOCs) emissions. These compositions are therefore useful in waterborne coatings, contact and pressure sensitive adhesives, and inks.

专利号:US-5556924-A
优先权日:1993-11-01
标题 :Synthesis of photoreactive polymeric binders
发明人：FITZGERALD MAURICE J; KEARNEY FREDERICK R; LIANG RONG-CHANG; SCHWARZEL WILLIAM C
权利人:POLAROID CORP
摘要:A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl- alpha , alpha -dimethylbenzyl isocyanate is derivatized for vinyl group reactivity by reacting the isocyanate groups thereof with hydroxyalkyl acrylate. The resulting photopolymeric binder provides significantly higher photospeed than the non-reactive binder currently utilized in the production of conventional printing plates. The resulting lithographic printing plate also shows better durability (as manifested by longer run-length) and is more easily developed by the microencapsulated developers utilized in the present invention. As to the preparation of the photoreactive binders, the application discloses a method of copolymerizing m-isopropenyl- alpha , alpha -dimethylbenzyl isocyanate (m-TMI) through complexation with an electron-deficient monomer such as maleic anhydride to accelerate free radical copolymerization with other monomers, and thus, provides greater monomer-to-polymer conversion. Use of the resulting product in the photoresist of a lithographic printing plate improves its adhesion to an underlying substrate.