CAS: 25168-21-2; 4-O-[dibutyl-[(Z)-4-(6-Methylheptoxy)-4-Oxobut-2-Enoyl]Oxystannyl] 1-O-(6-Methylheptyl) (Z)-But-2-Enedioate

专利信息

专利号:US-3684773-A
优先权日:1967-11-24
标 题:Synthesis of cyanoformamidyl isocyanates and polyiminoimidazolidinediones therefrom
发明人：PATTON TAD L
权利人:TAD L PATTON
摘要:The monoadduct of a diisocyanate and hydrogen cyanide, a cyanoformamidyl isocyanate, is produced by the reaction of one mole of a diisocyanate with one mole of hydrogen cyanide. Heterocyclic polymers are produced by the head-to-tail polymerization of cyanoformamidyl isocyanates in an appropriate solvent and in the presence of an effective catalyst.

专利号:US-2018312623-A1
优先权日:2017-04-28
标题 :Polyurethane Elastomer with High Ultimate Elongation
发明人：WANG LIANG; WANG VIKTORIA
权利人:WANG LIANG; WANG VIKTORIA
摘要:The present invention relates to polyurethane-urea elastomers with exceptional mechanical properties and enhanced elasticity based on molecular structure analysis. The present invention involves the synthesis of a polyurethane-urea elastomer using a combination of commercially available materials: (1) polyols with ultralow unsaturation and narrow polydispersity, (2) diisocyanates with symmetric steric conformation, and (3) bulky diamines between functional groups. The preparation method for the novel polyurethane-urea is disclosed. The subject elastomers have the highest reported elongation-at-break among known polyurethane elastomers.

专利号:US-4035404-A
优先权日:1967-11-24
标题:Cyanoformamidyl isocyanates and synthesis thereof
发明人：PATTON TAD L
权利人:EXXON RESEARCH ENGINEERING CO
摘要:The monoadduct of a diisocyanate and hydrogen cyanide, a cyanoformamidyl isocyanate, is produced by he reaction of 1 mole of a diisocyanate with 1 mole of hydrogen cyanide. Heterocyclic polymers are produced by the head-to-tail polymerization of cyanoformamidyl isocyanates in an appropriate solvent and in the presence of an effective catalyst.