Abstract: A regeneration control apparatus for controlling, in an exhaust gas treatment apparatus of a diesel engine including a diesel oxidation catalyst (DOC) disposed in an exhaust passage of an internal combustion engine and a diesel particulate filter (DPF) disposed downstream of the DOC, execution of forced regeneration to remove an exhaust particulate matter (PM) which accumulates on the DPF through a temperature increase of the DPF, includes: a late-post injection amount determination part which determines a late-post injection amount. The late-post injection amount determination part is configured to determine an upper limit value of the late-post injection amount on the basis of an air excess ratio of exhaust gas flowing into the DOC obtained on the basis of a temperature index of the DOC.

Abstract: Provided is a control device configured to be able to execute, in an engine which includes a DOC, a DPF, and a temperature increase unit including an exhaust throttle valve, for increasing a temperature of each of the DOC and the DPF, a forced regeneration process of removing PM deposited on the DPF by increasing the temperature of the DPF. The control device includes a flow rate estimation part configured to estimate an intake flow rate of a combustion gas sent into a cylinder of the engine.

Abstract: Provided is a control device configured to be able to execute, in an engine which includes a DOC, a DPF, and a temperature increase unit including an exhaust throttle valve, for increasing a temperature of each of the DOC and the DPF, a forced regeneration process of removing PM deposited on the DPF by increasing the temperature of the DPF. The control device includes a flow rate estimation part configured to estimate an intake flow rate of a combustion gas sent into a cylinder of the engine.

Abstract: A two-package solventless rust preventive material comprises (A) a sprayable component essentially containing a liquid epoxy resin and a liquid polycarboxylic acid anhydride and (B) a sprayable component essentially containing a liquid primary or secondary amino compound and a curing accelerator, at least one of said components (A) and (B) essentially comprising a non-reactive epoxy resin diluent having a molecular weight of 300 to 4,000 and an electrically conductive powder.

Abstract: An air drying paint composition comprising a chlorinated polymer selected from the group consisting of chlorinated polydiolefin rubbers and chlorinated polyolefins as at least one ingredient of a binder, said composition further comprising 5 to 100 parts by weight, per 100 parts by weight of the chlorinated polymer, of a cyclopentadiene resin having a softening point of 50.degree. to 160.degree. C. prepared by heat polymerization of 50 to 100% by weight of a cyclopentadiene monomer and 50 to 0% by weight of a comonomer copolymerizable with it.

Abstract: Aqueous coating compositions comprising a water-soluble or water-dispersible resin prepared by at least partially neutralizing with a basic compound an addition product of an .alpha.,.beta.-unsaturated dicarboxylic compound and a butadiene polymer which has a number average molecular weight of 400-10,000 and contains 40-75% cis-1,4-bonds, 15% or less trans-1,4-bonds and 20-50% 1,2-bonds in the butadiene units forming the polymer chain.

Abstract: A process for preparing a colorless, odorless and transparent polymer oil having a low number average molecular weight, iodine value and viscosity and a high flash point, characterized by copolymerizing a mixture of n-pentene-1 and at least one other chain pentene in specific quantitative ratios in a Friedel-Crafts type catalyst and then hydrogenating the thus obtained liquid copolymer to a certain extent, and the polymer oil prepared thereby.