Aluminum Phosphorus Acid Salts as Epoxy Resin Cure Inhibitors
申请人:TIMBERLAKE LARRY D.
公开号:US20120296013A1
公开(公告)日:2012-11-22
Certain aluminum salts of organic phosphorus acids are found to have a strong effect on inhibiting the epoxy cure rate in epoxy formulations. The substances act catalytically and can be used at a low level in an epoxy formulation to adjust the reactivity of a resin formulation to give longer gel times. Compositions and methods of preparing and using the compositions are disclosed.
Die vorliegende Erfindung betrifft wasserquellbare hydrophile Polymere, herstellbar durch radikalische (Co)polymerisation von einem oder mehreren hydrophilen Monomeren oder Pfropf(co)polymerisation von einem oder mehreren hydrophilen Monomeren auf eine geeignete Pfropfgrundlage, dadurch gekennzeichnet, daß ein Radikalinitiator eingesetzt wird, der Di- oder Polyradikale bilden kann.
WATER ABSORBENT POWDER AND PROCESS FOR THE PRODUCTION THEREOF
申请人:NIPPON SHOKUBAI CO., LTD.
公开号:EP0780424A1
公开(公告)日:1997-06-25
A manufacturing method of water-absorbent agent powders of the present invention is a method of reducing an amount of a residue of an epoxy crosslinking agent remaining therein by adding a nucleophilic reagent in a form of powder to surface region crosslinked water-absorbent resin powders having a carboxyl group under an applied heat in which the residue of the crosslinking agent remains.
Since the method permits an amount of the residue of the crosslinking agent to be reduced by adding a nucleophilic reagent to the heated water-absorbent resin powders, the water-absorbent agent powders exhibiting well-balanced properties which are mutually negatively correlated from one another, i.e., high absorbency under pressure, a reduced amount of a residue of the epoxy crosslinking agent and a high absorbing rate compared with the conventional surface region crosslinked water-absorbent resin powders can be achieved. Such water-absorbent agent powders are suitably used in sanitary materials such as disposable diaper, sanitary napkin, etc.
Die vorliegende Erfindung betrifft wasserquellbare, hydrophile Polymerzusammensetzungen, herstellbar durch radikalische (Co)polymerisation von einem oder mehreren hydrophilen Monomeren in Anwesenheit von Stärke und/oder chemisch modifizierter Stärke, dadurch gekennzeichnet, daß ein Radikalinitiator eingesetzt wird, der drei oder mehr Radikalstellen pro Molekül ausbildet.
An object of the present invention is to provide a resin composition that has a variety of properties required for a material for printed circuit boards such as high flame retardancy, and can attain a cured product having high moldability, high resistance against chemicals in a desmearing step, and a small coefficient of thermal expansion, a prepreg comprising the resin composition, a laminate including the prepreg, a metallic foil clad laminate including the prepreg, and a printed circuit board including the prepreg. A resin composition comprising an acrylic-silicone copolymer (A), a halogen-free epoxy resin (B), a cyanic acid ester compound (C) and/or a phenol resin (D), and an inorganic filler (E).