摘要:
This invention relates to a toner for electrophotography which develops an electrostatically charged image, the toner at least containing a coloring agent, a binder resin, a charge control agent, and a functioning agent, wherein low molecular weight polyolefin wax obtained by a metallocene type polymerization catalyst is contained as the function imparting agent. The toner of the invention is excellent in fixability, and has offset preventing properties, heat response characteristic, anti-spent toner properties, and storage stability, which can thus obtain a sharp, high quality image.
摘要:
This invention relates to a toner for electrophotography which develops an electrostatically charged image, the toner at least containing a coloring agent, a binder resin, a charge control agent, and a functioning agent, wherein low molecular weight polyolefin wax obtained by a metallocene type polymerization catalyst is contained as the function imparting agent. The toner of the invention is excellent in fixability, and has offset preventing properties, heat response characteristic, anti-spent toner properties, and storage stability, which can thus obtain a sharp, high quality image.
摘要:
This invention relates to a coated carrier for development of an electrostatically charged image, comprising carrier core particles coated with a coating resin; wherein the coating resin at least includes a polyolefin resin having a cyclic structure; a polyolefin resin of a cyclic structure having an intrinsic viscosity (i.v.) of 0.25 dl/g or more, a heat distortion temperature (HDT) by DIN53461-B of 70 .degree. C. or higher, and a number average molecular weight of 7,500 or more and a weight average molecular weight of 15,000 or more, as measured by GPC, is contained in an amount of less than 50% by weight based on the entire coating resin; and the coating resin is used for coating in an amount of 1 to 30% by weight based on the carrier core particles. The present invention can obtain a coated carrier which exhibits high anti-spent toner effect and excellent charge control properties during development with a dry toner.
摘要:
This invention relates to a toner for developing an electrostatically charged image of a heat roller type copier or printer, the toner consisting essentially of a binder resin, a colorant and a charge control agent, in which the binder resin at least includes a polyolefin resin having a cyclic structure, and a polyolefin resin of a cyclic structure having an intrinsic viscosity (i.v.) of 0.25 dl/g or more, a heat distortion temperature (HDT) by DIN53461-B of 70° C. or higher, and a number average molecular weight of 7,500 or more and a weight average molecular weight of 15,000 or more, as measured by GPC, is contained in a proportion of less than 50% by weight based on the entire binder resin. The toner for developing an electrostatically charged image according to the invention is excellent in fixability, light transmission, and anti-toner spent properties, giving a sharp, high quality image, can be applied to any of a dry one-component magnetic toner, a dry one-component nonmagnetic toner, a dry two-component toner and a liquid toner, and exhibits marked effects particularly when used in a color toner.
摘要:
Polymers can be obtained by free-radical polymerization of monomers in the presence of a dissolved polysiloxane. The free-radical-polymerizable monomers used are at least one compound of the formula I ##STR1## where R.sup.1 and R.sup.2 are, independently of one another, hydrogen, COOH, C.sub.1 -C.sub.18 -alkyl, cyclohexyl, C.sub.1 -C.sub.4 -alkyl-cyclohexyl, C.sub.6 -C.sub.10 -bicycloalkyl, C.sub.6 -C.sub.18 -tricycloalkyl,R.sup.3 is hydrogen or methyl,R.sup.4 is hydrogen, (C.sub.1 -C.sub.20)-alkyl, 2-hydroxypropyl, glycidyl,--[CH.sub.2 CH.sub.2 --O].sub.n H, having n=1 to 5,--[CH.sub.2 ].sub.m --OH, having m=3 to 18, in particular m=3 to 8,--[CH.sub.2 ].sub.2 O--[CO--(CH.sub.2).sub.5 ].sub.x OH, where x=a number from 1 to 3, or--[CH.sub.2 CHOHCH.sub.2 ]--O--(CO)R,where R is a C.sub.1 to C.sub.18 -alkyl radical.The polysiloxane used is at least one aromatic polyarylene siloxane of the formula III ##STR2## where R.sup.9 and R.sup.10 are, independently of one another, a C.sub.1 -C.sub.12 -alkyl radical, a C.sub.6 -C.sub.14 -aryl radical, or an unsubstituted or substituted vinyl radical, andR.sup.11, R.sup.12, R.sup.13 and R.sup.14 are, independently of one another, hydrogen, a C.sub.1 -C.sub.3 -alkyl radical or a substituted or unsubstituted C.sub.6 -C.sub.14 -aryl radical and--X-- is a group --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 --, --S--, --SO.sub.2 --, --CH.sub.2 -- or a cyclohexylidene group, or a single chemical bond and M is equal to 0 or 1 and N is a number from 2 to 500, in particular from 3 to 200.
摘要:
A fiber-reinforced cycloolefin polymer material comprises 1 to 99% by weight of reinforcing fibers, in particular glass fibers, and 99 to 1% by weight of a cycloolefin copolymer which is built up froma) at least one (polycyclo)olefin which is derived from norbornene, for example tetracyclododecene, and b) at least one olefin which is chosen from monocycloolefins having 4 to 12 C atoms (VII) and/or the group of acyclic olefins VIII ##STR1## in which R.sup.9, R.sup.10, R.sup.11 and R.sup.12 are identical or different and are a hydrogen atom or a C.sub.1 -C.sub.8 -alkyl radical. VII is preferably ethylene. The monomer units of the (polycyclo)olefin in the cycloolefin copolymer molecule are in each case separated by monomer units of the cyclic olefins VII and/or of the acyclic olefins of the formula VIII.
摘要翻译:纤维增强的环烯烃聚合物材料包含1至99重量%的增强纤维,特别是玻璃纤维,和99至1重量%的环烯烃共聚物,其由以下组成:a)至少一种(多环)烯烃,其是 衍生自降冰片烯,例如四环十二碳烯,和b)至少一种选自具有4-12个碳原子的单环烯烃(VII)和/或非环烯烃VIII(VIII)的烯烃,其中R 9,R 10, R 11和R 12相同或不同,为氢原子或C1-C8-烷基。 VII优选为乙烯。 在环烯烃共聚物分子中的(多环)烯烃的单体单元各自由环状烯烃VII和/或式VIII的无环烯烃的单体单元分离。
摘要:
The invention relates to amorphous polyesterimides which comprises 50 to 100 mole-% of units of formula II ##STR1## and from 0 to 50 mole-% of units of formula ##STR2## in which units R.sub.1 and R.sub.2, independentlyof one another, are H, branched or unbranched alkyl radicals having 1 to 6 carbon atoms, branched or unbranched alkoxy radicals having 1 to 6 carbon atoms, or F, Cl or Br.The polyesterimides according to the invention are suitable for the production of molding compositions, moldings, fibers and films.
摘要:
A toner for development of an electrostatically charged image, said toner comprising a binder resin, a colorant, a function imparting agent, and a charge control agent, wherein said binder resin at least contains a polyolefin resin having a cyclic structure, said polyolefin resin is composed of a resin or resin fraction having a number average molecular weight (Mn), as measured by GPC, of less than 7,500 and a resin or resin fraction having said number average molecular weight of 7,500 or more, and in said polyolefin resin having a cyclic structure, a resin or resin fraction having an intrinsic viscosity (i.v.) of 0.25 dl/g or more, and a number average molecular weight (Mn) of 7,500 or more and a weight average molecular weight (Mw) of 15,000 or more, as measured by the GPC method, is contained in a proportion of less than 50% by weight based on the entire binder resin.