CAS: 10288-28-5; (E)-2-(2-Cyanopropan-2-yl)Diazenecarboxamide

专利信息

专利号:US-2007142588-A1
优先权日:2003-08-29
标 题:Method for the synthesis of copolymers for producing polymethacrylimides
发明人：SCHERBLE JONAS; STEIN PETER; ALUPEI JULIAN C; RITTER HELMUT; SCHWARZ-BARAC SABINE
权利人:ROEHM GMBH
摘要:The invention relates to a method for producing polymethacrylimides in two steps: 1) radical copolymerization of (meth)acrylamides (A, (Me,H)HC=CHCONHR2) and alkyl(meth)acrylic esters (B) and optionally further ethylenically unsaturated monomers in the presence of an aqueous solvent. The monomers (A) include, in addition to acrylamide and methacrylamide, (meth)acrylamides that are substituted on their nitrogen group (R2<>H). The monomers (B) are the (meth)acrylic esters of secondary or tertiary alcohols, preferably tert. butylmethacrylate. 2) Thermal or catalytic reaction of the copolymers produced in 1) to polymethacrylimide or for R2<>H to N-substituted polymethacrylimides while alkenes are separated.

专利号:US-7807764-B2
优先权日:2003-08-27
标 题:Composition and process for the controlled synthesis of block copolymers
发明人：WERMTER HENDRIK; SIMON DIRK; PFAENDNER RUDOLF
权利人:CIBA SC HOLDING AG
摘要:The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) at least one hydroxylamine of high molecular weight, preferably a long chain alkyl substituted hydroxylamine. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of high molecular weight hydroxylamines for controlled polymerization.

专利号:US-7399806-B2
优先权日:2003-06-26
标 题:Synthesis of photoresist polymers
发明人：BENOIT DIDIER; SAFIR ADAM; CHANG HAN-TING; CHARMOT DOMINIQUE; OKAMOTO KENJI; NISHIMURA ISAO; WANG YONG
权利人:SYMYX TECHNOLOGIES INC
摘要:The present invention is directed to the preparation of photoresist polymers via living free radical polymerization techniques. Sterically bulky ester monomers are utilized as the polymerization components. Use of chain transfer agents is included in polymerization processing conditions. Cleavage of polymer terminal end groups that include a heteroatom are described.

专利号:US-7351781-B2
优先权日:2001-04-24
标题 :Synthesis of vinyl polymers by controlled radical polymerization
发明人：WHITE DANIELA; O'DWYER JAMES B
权利人:PPG IND OHIO INC
摘要:A controlled free radical polymerization process, which includes the steps of: adding a monofunctional iniferter compound to an oxygen-free solvent; heating the solution to a temperature sufficient to allow the iniferter compound to form two carbon centered radical residues; adding a first monomer composition comprising one or more monomers to the solution containing the radical containing residues; polymerizing the first monomer composition to form a quasi-living polymer; and optionally polymerizing a second monomer composition comprising one or more monomers, which are different than the first monomer composition. The resulting non-random copolymer having the general formula:n nφ-[-A p -B s -] t -φn nwhere A and B are different compositions of ethylenically unsaturated monomers; p is an integer from 1 to 1,000; s is an integer from 0 to 1,000; t is an integer from 1 to 100; and φ is a residue from the iniferter.

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-8426497-B2
优先权日:2008-04-01
标题 :Synthesis of improved binders and modified tacticity
发明人：SCHWIND HELMUT; WIESLER UWE-MARTIN; BORGMANN CORNELIA; LEUNINGER HEIKE; SCHMIED THOMAS; MAUS STEFANIE; FRIEDRICH WERNER; BALK SVEN
权利人:SCHWIND HELMUT; WIESLER UWE-MARTIN; BORGMANN CORNELIA; LEUNINGER HEIKE; SCHMIED THOMAS; MAUS STEFANIE; FRIEDRICH WERNER; BALK SVEN; EVONIK ROEHM GMBH
摘要:The invention relates to a process for preparing polymers for coating applications by polymerizing esters of acrylic acid or of methacrylic acid or vinyl aromatics or other free-radically polymerizable vinyl compounds or monomer mixtures composed predominantly of such monomers by means of a continuous polymerization process. In particular, the invention relates to a solvent-free preparation process for polymers, through which the binder can be prepared for coating applications with superior processing properties, very good thermal stability, improved pigment wetting and a higher gloss.