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公开(公告)号：US11072688B2
公开(公告)日：2021-07-27
申请号：US16464723
申请日：2017-11-09
Applicant: Rohm and Haas Company
Inventor： Muhunthan Sathiosatham , James H. Pawlow , Lan T. P. Hoang Nguyen
Abstract: A method for preparation of (meth)acrylate esters of polysiloxanes. The method comprises contacting in the presence of zirconium acetylacetonate or hafnium acetylacetonate: (i) a polysiloxane having at least two hydroxyl groups, each of which is attached to a carbon atom, and (ii) a C1-C4 alkyl (meth)acrylate.
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公开(公告)号：US09796650B2
公开(公告)日：2017-10-24
申请号：US15100759
申请日：2014-11-21
Applicant: Dow Global Technologies LLC , Rohm and Haas Company
Inventor： Robert Wilczynski , Christopher R. Eddy , John O. Osby , Lan T. P. Hoang Nguyen
IPC: C07C67/03 , C07C67/02 , C08F2/38 , C07C69/587 , C08F210/02
CPC classification number: C07C67/02 , C07C67/03 , C07C69/587 , C08F2/38 , C08F210/02 , C08F220/68 , C08F2220/1891 , C08F2220/287
Abstract: A process to form a composition comprising an asymmetrical polyene, the asymmetrical polyene comprising an “α,β unsaturated-carbonyl end” and a “C—C double bond end,” the process comprising: reacting an alkene- or polyene-containing alcohol with an alkyl ester of an α,β unsaturated carboxylic acid in the presence of at least the following components A) through C) to form a solution comprising an asymmetrical polyene: A) a lithium salt; B) a component selected from the group consisting of hydroquinone, an alkyl-substituted phenol, a substituted alkyl-substituted phenol, an alkyl-substituted hydroquinone, a substituted alkyl-substituted hydroquinone, and combinations thereof; and C) an N-oxyl-containing compound; wherein the “α,β unsaturated-carbonyl end” of the asymmetrical polyene is selected from the group consisting of structures a) through c), as described herein, and wherein the “C—C double bond end” of the asymmetrical polyene is selected from the group consisting of structures 1) through 17), as described herein.
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