The present invention relates to an eggshell catalyst comprising an active metal selected from the group consisting of ruthenium, rhodium, palladium, platinum and mixtures thereof, applied to a support material comprising silicon dioxide, wherein the pore volume of the support material is 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is 280 to 500 m
2
/g, and at least 90% of the pores present have a diameter of 6 to 12 nm, to a process for preparing this eggshell catalyst, to a process for hydrogenating an organic compound which comprises at least one hydrogenatable group using the eggshell catalyst, and to the use of the eggshell catalyst for hydrogenating an organic compound.
PROCESS FOR PRODUCING EXPANDABLE STYRENE POLYMER COMPOSITIONS
申请人:Husemann Wolfram
公开号:US20110291040A1
公开(公告)日:2011-12-01
A composition comprising at least one expandable styrene polymer component and at least one cyclohexanecarboxylic ester and also optionally further components can be processed to mechanically robust foam materials.
CYCLOHEXANE POLYCARBOXYLIC ACID DERIVATIVES AS PLASTICIZERS FOR ADHESIVES AND SEALANTS
申请人:Mack Helmut
公开号:US20110232825A1
公开(公告)日:2011-09-29
The invention provides an adhesive or sealant comprising at least (A) one compound selected from the group consisting of silylated polyurethanes, silylated polyureas, silylated polyethers, silylated polysulfides and silyl-terminated acrylates, and at least (B) one cyclohexane polycarboxylic acid derivative. The composition has enhanced extensibility with good adhesion properties and high tensile strength. A process is disclosed for preparing the adhesive or sealant, and also disclosed is the use thereof for producing material bonds between parts to be joined.
The present invention provides a curable composition comprising an organic polymer having a reactive silyl group that is applicable to a sealant and an adhesive by improving depth curability, curing retardation after storage, and tensile properties. A curable composition comprising (A) an organic polymer having a reactive silyl group; (B) at least one ester compound (except for compounds having a methyl ester group) selected from the group consisting of isophthalic acid ester compounds, terephthalic acid ester compounds, 1,3-cyclohexanedicarboxylic acid ester compounds, and 1,4-cyclohexanedicarboxylic acid ester compounds; and (C) a compound having a methyl ester group.
[Problem] To provide an insulation material that has an excellent volume resistivity while retaining the balance among various capabilities including the mechanical strength, the heat resistance, the oil resistance, the bleed-out resistance, the plasticizer migration resistance, and the like, equivalent to a resin composition containing an ordinary phthalate ester.
[Solution] An insulation material containing a resin composition containing: an ester (i) having one or more constitutional unit represented by the following formula (A) (wherein R1 and R2 each independently represent an alkyl group having from 1 to 4 carbon atoms); and a resin (ii).