Halogen Resistant Amides, Polyamides, and Membranes Made From the Same
申请人:Murphy Andrew P.
公开号:US20160074817A1
公开(公告)日:2016-03-17
A halogen resistant polyamide is formed from the reaction product of an amine monomer and an acid chloride monomer wherein the amino group of the starting amine monomer is separated from the aromatic amine ring system by an alkyl group and (i) minimizes halogenation on the amine and (ii) minimizes N-halogenation at a pH range of approximately 7 to approximately 10.5. A membrane is made from the polyamide for use, for example, in a reverse osmosis desalination unit.
Production of alpha-chloroisopropyl-substituted aromatics
申请人:Lang Gabriele
公开号:US20050171392A1
公开(公告)日:2005-08-04
α-Chloroisopropyl-substituted aromatics are obtained in high yield by treating isopropenyl-substituted aromatics with hydrogen chloride gas in the absence of a solvent. The α-chloroisopropyl-substituted aromatics serve as initiators for the cationic polymerization of isobutene.
Polymer composition containing double salt whose metal components are magnesium and aluminum
申请人:Fukuda Ryuji
公开号:US20060167156A1
公开(公告)日:2006-07-27
It is an object of the present invention to provide a polymer composition including a polymer produced by cationic polymerization in which the composition does not liberate a chlorine component by heating, which prevent processing apparatus, driers, etc. from corroding, and which is odorless and safe. The object is achieved by a polymer composition obtained by adding a double salt containing magnesium and aluminum as metal atoms to a polymer containing chlorine atoms produced by polymerizing cationically polymerizable monomers with an initiator in the presence of a Lewis acid.
The present invention has for its object to provide a damping material which, despite a high damping capacity at and around room temperature, has a small temperature dependence of rigidity at and around room temperature and a damping material having hot-melt processability and a good balance between damping capacity and temperature dependence of rigidity at and around room temperature.
This invention provides a damper material composition
wherein the ratio of the storage modulus (G′) value at 0° C. to the corresponding value at 40° C. as found by the measurement of dynamic viscoelasticity in the shear mode, namely (G′
0° C.
/G′
40° C.
), is not greater than 15
and the loss tangent (tan &dgr;) value as found by said measurement is not smaller than 0.4 at 0° C. to 40° C.
(METH)ACRYLOYL-TERMINATED POLYISOBUTYLENE POLYMER, METHOD FOR PRODUCING THE SAME, AND ACTIVE ENERGY RAY-CURABLE COMPOSITION
申请人:KANEKA CORPORATION
公开号:US20140243444A1
公开(公告)日:2014-08-28
The purpose of the present invention is to provide a polymer having a low halogen atom content remaining in the polymer, a simple production method thereof, an active energy ray-curable composition that can be rapidly cured by an irradiation of a small amount of light, and a cured product thereof. These purpose can be achieved by an active energy ray-curable composition, including a polyisobutylene polymer (A) represented by the following general formula (1) (wherein R
1
represents a monovalent or polyvalent aromatic hydrocarbon group, or a monovalent or a polyvalent aliphatic hydrocarbon group; A represents a polyisobutylene polymer; R
2
represents a divalent saturated hydrocarbon group having 2-6 carbon atoms, which contains no hetero atoms; R
3
and R
4
each represent hydrogen, a monovalent hydrocarbon group having 1-20 carbon atoms, or an alkoxy group having 1-20 carbon atoms; R
5
represents hydrogen or a methyl group; and n denotes a natural number), and an active energy ray polymerization initiator (B).