摘要:
A lubricant compound which comprises carbon, hydrogen, fluorine and etheric oxygen atoms and which contains perfluoropolyether chain of the formula (A), a perfluoroalkyl chain of the formula (B) and a polyether chain of the formula (C) in combinations of (A) and (C), (B) and (C), or (A) and (C) and of (B) and (C), in a molecule wherein:A is --(C.sub.n F.sub.2n O).sub.m --,wherein n is an integer of 1 to 10 and m is an integer of at least 1;B is --C.sub.n F.sub.2n --,wherein n is an integer of 1 to 15, andC is --(C.sub.n H.sub.2n O).sub.m --,wherein n is an integer of 1 to 6 and m is an integer of at least 1.
摘要翻译:PCT No.PCT / JP94 / 00279 Sec。 371日期:1994年10月24日 102(e)日期1994年10月24日PCT 1994年2月23日提交PCT公布。 公开号WO94 / 19433 1994年9月1日。一种润滑剂化合物,其包含碳,氢,氟和醚的氧原子并且含有式(A)的全氟聚醚链,式(B)的全氟烷基链和式 (A)和(C),或(A)和(C)和(B)和(C))的组合,其中:A为 - (C n F 2n O) m-,其中n为1至10的整数,m为至少1的整数; B为-C n F 2n,其中n为1〜15的整数,C为 - (C n H 2n O)m - ,n为1〜6的整数,m为1以上的整数。
摘要:
A method of reusing a coated substrate having a surface coating fixed to the material substrate surface, comprising the steps: (a) allowing the coated substrate, which carries deposits on its surface, to swell as a coated composition to which said deposits adhere, and (b) drying said coated substrate to reuse said coated substrate wherein the coated substrate comprises a material substrate and a coating composition fixed to the surface of said material substrate, said coating composition comprising a crosslinked water swellable hydrophilic resin which is solid in air at ambient temperature and from which surface deposits are readily removable, such that said coated material substrate is reusable, and wherein the condition of said swellable hydrophilic resin is such that while said hydrophilic resin swells in the presence of water it is not washed away from said surface of said material substrate by water when the deposits are readily removed with water. The method includes the features that (i) said water swellable hydrophilic resin is capable of swelling to a volume at least 1.5 times its initial volume (ii) and said deposits include toner ink.
摘要:
A reversible heat-sensitive recording medium comprising a support; a heat-sensitive layer formed on top of the support, which layer comprises a resin matrix and a low molecular weight organic compound dispersed in said matrix, and a transparency of which is reversibly changeable depending on the temperature, in which a conductive powder is contained in at least a part of the support and heat-sensitive layer, which medium has a low-surface resistivity and excellent anti-static properties.
摘要:
A polycarbonate polyol having a main chain of the formula: ##STR1## wherein R is an aliphatic or alicyclic hydrocarbon group having 4 to 10 carbon atoms, and n is a number of 2.00 to 20.00, and having an aliphatic OH group at the terminal; an aromatic polycarbonate polyurethane resin prepared from the polycarbonate polyol as set forth above and a polyisocyanate compound having two or more isocyanate groups in the molecule and optionally other components, particularly a chain extender having a polar group; a coating agent comprising the polycarbonate polyol and/or aromatic polycarbonate polyurethane resin as set forth above and optionally a polyisocyanate compound as set forth above and a solvent; a cast film comprising a coating film formed from the polycarbonate polyol and/or aromatic polycarbonate polyurethane resin as set forth above and a base film; and a magnetic recording medium comprising a magnetic layer formed from the aromatic polycarbonate polyurethane resin as set forth above and optionally the polyisocyanate compound as set forth above, and a base film.
摘要:
A polycarbonate polyol having a main chain of the formula: ##STR1## wherein R is an aliphatic or alicyclic hydrcarbon group having 4 to 10 carbon atoms, and n is a number of 2.00 to 20.00, and having an aliphatic OH group at the terminal; an aromatic polycarbonate polyurethane resin prepared from the polycarbonate polyol as set forth above and a polyisocyanate compound having two or more isocyanate groups in the molecule and optionally other components, particularly a chain extender having a polar group; a coating agent comprising the polycarbonate polyol and/or aromatic polycarbonate polyurethane resin as set forth above and optionally a polyisocyanate compound as set forth above and a solvent; a cast film comprising a coating film formed from the polycarbonate polyol and/or aromatic polycarbonate polyurethane resin as set forth above and a base film; and a magnetic recording medium compriisng a magnetic layer formed from the aromatic polycarbonate polyurethane resin as set forth above and optionally the polyisocyanate compound as set forth above, and a base film.
摘要:
A material having a substrate and a coating formed on the surface of the substrate, in which the coating contains a resin swellable with water such as an acrylic copolymer, and a water-soluble compound such as polyethylene glycol. When such a coating is formed on the surface of a material such as an office automation sheet, inks and other deposits can be easily removed with water from the surface, and the office automation sheet can be repeatedly used. Thus, such a coating is useful for reserving resources and protecting environments. Furthermore, dirts can be easily removed from furniture, electric appliances, and the like.
摘要:
A coating fixed to the surface of a material, the coating comprising a hydrophilic resin which swells with water but is not washed away, and is solid in air at ambient temperature, from which a deposit, such as a toner ink, can be readily removed with water.
摘要:
A coated substrate having a material substrate, and a coating composition fixed to a surface of the material substrate as a surface layer, the surface layer containing a hydrophilic resin which swells water but is not washed off by water, and which is solid in air at ambient temperatures that are encountered when said coated substrate is functioning as a reusable printing sheet and from which surface layer prior printing deposits can be readily removed, and when which the coated substrate has a surface resistivity of to 10.sup.5 to 10.sup.13 .OMEGA./.quadrature. at 25.degree. C., 50% RH after being dipped in water for 5 minutes and dried with a hot air of 60.degree. to 90.degree. C. for 5 minutes.
摘要:
A magnetic recording medium having a non-magnetic substrate and a magnetic layer formed on at least one surface of the substrate and containing a fluorine-containing lubricant on or in a surface thereof, in which the fluorine-containing lubricant is a fluorinated block/non-fluorinated block/fluorinated block triblock copolymer.
摘要:
A reversibly changeable heat-sensitive recording medium comprising a heat-sensitive layer which comprises a support, and a resin matrix and a low molecular weight organic material dispersed inside the resin matrix, the transparency of which changes reversibly depending on the temperature and which is formed on a support, and, if necessary, including a protection layer or an intermediate layer prepared above the heat-sensitive layer or on the lower surface of the support layer or between the support layer and any other layer or between any other layers in the reversibly changeable heat-sensitive recording medium, characterized in that a fluorescent body which emits visible light through the excitement by visible light is included in at least a portion of the support body, heat-sensitive layer and, if necessary, any other layer. This medium has excellent visibility and can be used with backgrounds of any of many possible colors.