摘要:
A thermoplastic resin composition composed of a mixture comprising:(A) from 5 to 94% by weight of an elastomer-containing styrene resin comprising an elastomer component and a resin component having a glass transition temperature of higher than 20.degree. C., with a covalent substance of the elastomer and resin components being present at the interface between the elastomer component constituting a dispersed phase and the resin component constituting a continuous phase;(B) from 5 to 94% by weight of a polycarbonate resin; and(C) from 0.1 to 20% by weight of a polymer of a monomer containing an acrylate monomer having a solubility parameter of from 8.4 to 9.8 (cal/cc).sup.1/2, a glass transition temperature of not higher than 20.degree. C. and a gel content of not higher than 70% by weight.
摘要:
A molded article of a transparent ABS resin comprising 10 to 24% by weight of a diene type rubber having a weight average particle size of 150 m.mu. or less and not containing methyl methacrylate in the continuous resin phase is subjected to wet plating. The resulting plated resin article has an excellent adhesion of the plating layer and a good transparency.
摘要:
A thermoplastic resin composition consists essentially of (A) 100 parts by weight of a rubber-containing styrene type resin and (B) 1 to 45 parts by weight of a polymeric substance selected from the group consisting of a homopolymer of an acrylic acid ester, copolymers of an acrylic acid ester, and a mixture of these polymers, said component (B) having a solubility parameter of from 8.4 to 9.8 (cal/c.c.).sup.1/2, a glass transition temperature of 20.degree. C. or below, a gel content of 70% by weight or below, and relative viscosity of a substance soluble in methylethyl ketone of 20 or below.
摘要:
A developing device is provided with developing unit covers mounted on opening portions of developing units through which developing rollers are exposed to close the opening portions. Due to such a construction, even when the developing units receive the vibration or the impact of falling during the course of transportation of an image forming apparatus on which the developing device is mounted, the overflow of a developer through the opening portion can be prevented.
摘要:
A rotary developing device which facilitates a positional adjustment of developing units and prevents the developing units from being shifted even when they are used for a long period. Pins protruding from a revolver are inserted into elongated holes formed in developing units so that developing units are held in such a manner that the developing units are movable relative to the revolver. By mounting a spacer between the elongated hole and the pin, the positional adjustment of the photosensitive drum and the tracking roller is completed. Furthermore, a plurality of spacers which differ in thickness are prepared and by merely selectively mounting an appropriate spacer, the position adjustment of the tracking roller is completed.
摘要:
A polymer composition obtained by mixing, in an emulsion state,(A) from 20 to 90% by weight (as solid content of polymer) of an emulsion of polymer component (A) which is a polymer of a vinyl monomer and has a glass transition temperature of higher than 20.degree. C., a gel content of not higher than 10% and a solubility parameter of from 8.0 to 11.0 (cal/cc) .sup.1/2 and which has a weight average molecular weight, based on polystyrene, of at least 1.5.times.10.sup.5, and(B) from 10 to 80% by weight (as solid content of polymer) of an emulsion of polymer component (B) which is a homopolymer of an acrylate monomer, a copolymer of acrylate monomers or a copolymer of an acrylate monomer with other copolymerizable monomer and has a glass transition temperature of not higher than 20.degree. C., a gel content of not higher than 70% and a solubility parameter of from 8.4 to 9.8 (cal/cc).sup.1/2,and separating the polymer from the emulsion mixture.
摘要:
Disclosed is a wet-platable acrylonitrilebutadiene-styrene resin (ABS resin) composition comprising 100 parts by weight of an ABS resin and 0.1 to 10 parts by weight of a compound represented by the following general formula [I]: ##STR1## wherein R.sub.1 stands for an alkyl group, R.sub.2 and R.sub.3 each stand for a hydrogen atom or a methyl group, R.sub.4 and R.sub.5 stand for a hydrogen atom or a group --C(O)R.sub.6 in which R.sub.6 stands for an alkyl group, and m and n are integers of from 1 to 20.A plated resin article having an improved plating adhesion can be obtained by wet-plating a molded article formed from this ABS resin composition.