Abstract: A laminating propylene/1-butene random copolymer composition comprising a propylene/1-butene random copolymer and a low-density polyethylene in a specified proportion. With respect to the propylene/1-butene random copolymer, the content of structural units derived from propylene, content of structural units derived from 1-butene, MFR, Mw/Mn and B-value as a parameter indicating the randomness of copolymer monomer chain distribution fall within specified ranges. With respect to the low-density polyethylene, the MFR and density fall within specified ranges. The invention also provides a composite film comprising a substrate film such as a crystalline polypropylene film and, laminated onto at least one side thereof, a resin layer of the above composition having a thickness of 2 to 200 &mgr;m. The above composition is excellent in laminate moldability and enables producing a composite film having excellent low-temperature sealing properties, blocking resistance and hot tack.

Abstract: The invention provides multilayered polymethylpentene-containing release films, processes for making the same and for their use in preparing articles comprises cured fiber reinforced epoxy, phenolic or polyacrylate compositions which file use as aerospace structural elements. The films have improved release properties when exposed to high temperatures. The films are non-oriented and multilayered comprising a polyamide layer, a polymethylpentene layer and an adhesive interlayer therebetween. The a polyamide layer has a heat stabilizer; and polyamide blend composed of from about 30% to about 80% of a nylon 6 polymer having a number average molecular weight of at least about 40,000; from about 10% to about 30% of a nylon 6,66 copolymer having a number average molecular weight of at least about 15,000; and from about 5% to about 40% of a nylon 6,12 copolymer having a number average molecular weight of at least about 10,000.

Abstract: A method employed to dry a copper foil having been subjected to various surface treatments, which method comprises irradiating at least one surface-treated side of the copper foil with near infrared rays to dry the copper foil, and an apparatus suitable to the method. The drying of the copper foil having undergone surface treatments can be accomplished by a simple apparatus with low electric power while controlling the heating of the surface of the copper foil so that the drying temperature can be held at 100° C. or higher at which a eutectic alloying of rust preventive metal and copper foil, for example, alloying (brass formation) of zinc and copper on the surface of the copper foil is effected.

Abstract: This invention provides a composite foil comprising an organic release layer between a metal carrier layer and an ultra-thin copper foil, and a process for producing such composite foils comprising the steps of depositing the organic release layer on the metal carrier layer and then forming an ultra-thin copper foil layer on said organic release layer by electrodeposition. The organic release layer preferably is a nitrogen-containing compound, a sulfur-containing compound, or a carboxylic acid, which provides a uniform bond strength which is adequate to prevent separation of the carrier and ultra-thin copper foil during handling and lamination, but which is significantly lower than the peel strength of a copper/substrate bond, so that the carrier can easily be removed after lamination of the composite foil to an insulating substrate. The invention also includes laminates made from such composite foils and printed wiring boards made from such laminates.

Abstract: Olefin polymerization catalysts are formed from: (I-1) a contact product obtained by contacting (A) a solid titanium catalyst component, (B) an organometallic compound catalyst component, and (C) a specific organosilicon compound, (II-1) (D) a specific polyether compound and, optionally, (III) an organometallic compound catalyst component; or (I-2) a contact product obtained by contacting (A) a solid titanium catalyst component, (B) an organometallic compound catalyst component, and (D) a specific polyether compounds, (II-2) (C) a specific organosilicon compound, and, optionally, (III) an organometallic compound catalyst component; or the contact product (I-1) or (I-2) may be replaced by one which is obtained by prepolymerizing an olefin of 2 or more carbon atoms in the presence of the catalyst components for the contact product (I-1) or (I-2).

Abstract: A sulfur-containing O-(meth)acrylate compound of the following formula (1) is useful as a starting material for a resin composition used in optical applications such as a lens; wherein R represents hydrogen atom or methyl group; 1 represents an integer from 1 to 3; B is when B is  n is 2; m is 1 or 2; A is selected from the following groups: wherein m represents 1 or 2; each ring may be substituted by one or more alkyl, alkylthio or alkoxy groups having 1 or 2 carbon atoms; p and q are 0 or 1, while m is 1 when p is 1; when B is  n is 1; m is 2 or 3; A is selected from the following groups: —(CH2)r—S—(CH2)r—, —(CH2)r—S—S—(CH2)r—, —(CH2)r—S—(CH2)s—S—(CH2)r— and wherein r and s are an integer from 1 to 3; when B is  n is 1; m is 2; A is selected from the following groups: —

Abstract: A poly-4-methyl-1-pentene resin laminate excellent in not only heat sealing properties and oxygen gas permeability but also blocking resistance is provided. The poly-4-methyl-1-pentene resin laminate comprises a layer made of a 4-methyl-1-pentene polymer (A), an intermediate layer made of an adhesive resin composition (B) and a layer made of a propylene polymer composition (C) comprising 60 to 90 parts by weight of a propylene polymer (c-1) and 10 to 40 parts by weight of a 1-butene polymer (c-2), the total amount of said components (c-1) and (c-2) being 100 parts by weight. This poly-4-methyl-1-pentene resin laminate can be used as a material of freshness-keeping packaging media and culture containers. Also provided is a poly-4-methyl-1-pentene resin laminate having excellent peel resistance and capable of being easily controlled in the oxygen gas permeability.

Abstract: Disclosed is a process for producing norbornane dimethylene amines wherein norbornane dicarbonitriles are hydrogenated by using a Raney cobalt catalyst containing manganese etc. in the presence of water in an amount of 0.1 to 1.5 moles per mole of the norbornane dicarbonitriles.

Abstract: The present invention provides olefin polymerization catalysts which can produce olefin polymers with excellent polymerization activity and an olefin polymerization method using the catalyst, wherein the catalyst comprises a transition metal amide compound represented by general formula (I) below: where M1 is Ti, etc.; R1 is alkyl, (substituted) phenyl, etc.; R2 is C(R5)2C(R6)mC(R5)2— or —C(R5)2—X1—C(R5)2— (X1 representing a silicon-containing group, etc., and R5 and R6 representing hydrocarbon groups, etc.); and R3 is a hydrocarbon group or halogen, etc.; and at least one compound selected from among organoaluminum oxy-compounds, ionizing ionic compounds and organometallic compounds.

Abstract: A syndiotactic polypropylene copolymer is disclosed which comprises 70 to 99.9 mole % of propylene and 0.1 to 30 mole % of an olefin other than propylene; in the 13C-NMR spectrum of the syndiotactic polypropylene copolymer, a ratio of the intensity of a peak at about 20.2 ppm to the sum of the intensities of the total peaks attributable to methyl groups in propylene units at about 19-22 ppm being 0.3 or more. Also disclosed are extrusion-molded high-transparency articles, especially films and sheets and blown films, obtained by the extrusion of a polypropylene substantially having a syndiotactic structure.

Abstract: There is provided a process for preparing a poly(alkylene oxide) by using a polymerization initiator which does not cause any problem on preparing and handling in the preparation of the polyalkylene oxide by polymerizing an alkylene oxide compound and does not require a special treatment before the initiation of the polymerization. That is, it is a process of polymerizing the alkylene oxide compound in the presence of a phosphine oxide compound represented by the formula (1): wherein R is the same or different and each represents a hydrocarbon group having 1 to 10 carbon atoms, and x represents an amount of water molecules contained in terms of a molar ratio and is within a range from 0 to 5.0, or in the presence of said phosphine oxide compound and an active hydrogen compound selected from water or an organic compound having a partial structural formula —OH or —NH—.

Abstract: A polymer (B) is prepared by polymerizing one or more vinyl monomers (c) in the presence of a polymer (A) prepared by polymerizing one or more vinyl monomers (a) selected from the group consisting of vinyl monomers represented by the general formula (1): wherein R1 represents a hydrogen atom or a lower alkyl with 1 to 3 carbon atoms and n is an integer of 1 to 8 and their salts with one or more vinyl monomers (b) which are co-polymerizable with the vinyl monomer components (a).

Abstract: A paste to be fired at a temperature lower than melting point of silver for forming a circuit board comprising surface-modified silver powder consisting essentially of metal silver particles having an average particle size of not more than 10 &mgr;m and at least one member selected from the group consisting of oxides and double oxides containing at least one metal element selected from the group consisting of those belonging to Groups 2 to 14 of Periodic Table whose atomic number falls within the range of from 12 to 82, which is adhered to the surface of the individual metal silver particles. The surface-modified silver powder has an elevated sintering-initiation temperature and a reduced rate of heat shrinkage due to sintering. Therefore, the surface-modified silver powder is particularly suitable for use in making a circuit board, in particular an LTCC circuit board.

Abstract: A spherical object supplying apparatus is to positively and smoothly supply, when spherical objects such as spherical single crystal silicons are supplied from a storing container such as a hopper to the following processing or manufacturing station (or apparatus), the spherical objects one at a time. The apparatus comprises: a supplying pipe path coupled to a spherical object storing container; a branch pipe which branches from the supplying pipe path; and a fluid supplying apparatus adapted to introduce pressurized fluid into the branch pipe path. The spherical objects are accelerated by the pressurized fluid which is jetted through the branch pipe path into the supplying pipe path.

Abstract: The refraction type non-destruction measuring apparatus of the present invention has a prism having a predetermined refractive index, projecting means for projecting near infrared light onto an object to be examined through the prism, a contact material filling the space between the object to be examined and the prism and having a refractive index set in conformity with the characteristic of the object to be examined, and light receiving means for receiving the internal reflected light of the light having entered the interior of the object to be examined through the contact material and the prism.

Abstract: A chewing gum which has a preventative effect against infection by influenza virus and inhibits dissemination of influenza virus. The chewing gum comprises adding at least 0.03 weight % of at least one tea polyphenol, for a chewing gum containing no organic acids; the chewing gum comprises at least 0.01 weight % of at least one tea polyphenol for a chewing gum containing at least one organic acid.

Abstract: The liquid crystal composition of the invention contains at least two compounds represented by the following formula (A) and each having different structures, one or more methylene group in the alkylene group R1 may be substituted with —O— groups, not less than 50% by weight, and has a transmitted light quantity I32 satisfying the condition of 0.5≦I32≦0.50, wherein R1 is an alkyl group of 2 to 20 carbon atoms; m is 0 or 1; Z is a —COO— group or a —CH2O— group; X is a hydrogen atom, a methyl group or a trifluoromethyl group; and R2 is a group selected from the group consisting of a straight-chain alkyl group of 1 to 5 carbon atoms, an ether group represented by —(CH2)p—O—(CH2)qCH3 and an alkene group wherein a terminal ethyl group consisting a straight-chain alkyl group of 2 to 5 carbon atoms is replaced with a group having a C═C double bond.

Abstract: A hollow vessel for heat sterilization, which is superior in the transparency and in the impact resistance with scarce odor, made of a polyolefin resin having characteristic properties comprising an underwater light transmittance of 70-99% resulting from determination of light transmission at a wave length of 450 nm for a resin specimen of a thickness of 0.5 mm which has been subjected to a heat sterilization treatment with steam at a temperature of 121° C. for 20 minutes; a tensile elastic modulus of 200-700 MPa, determined according to ASTM D 638 for a resin specimen of a thickness of 0.5 mm which has been subjected to a heat sterilization treatment with steam; a haze value difference &Dgr; Haze of 1-20%, determined according to ASTM D 1330 for a resin specimen of a thickness of 0.5 mm respectively before and after a heat sterilization treatment thereof with steam; and a high-speed impact strength of 1.5-10 J, determined on an impact test at 0° C.

Abstract: In a process producing a multi-layer printed wiring board, an inner core having at least one wiring pattern on its surface and an outer layer of copper foil are laminated with an organic insulating layer interposed therebetween, a via hole is formed using a laser beam, and the outer copper foil and the inner wiring patterns are electrically connected to each other by depositing copper. The process is characterized in that the outer layer of copper foil has a thickness of no more than one-fifth of the thickness of the inner wiring pattern, but will not exceed 7 &mgr;m, preferably 4 &mgr;m. The hole is formed in both the copper foil and the insulating layer simultaneously by irradiating with a laser beam on the outer layer of copper foil.

Abstract: A preparation process of a fluorine substituted aromatic compound comprising reacting an alkali metal or alkali earth metal salt of an aromatic compound having a hydroxy group with an organic fluorinating agent is disclosed. As a representative fluorinating agent, a bis-dialkylamino-difluoromethane compound, for example, 2,2′-difluoro-1,3-dimethylimidazolidine, is exemplified. According to the process, an industrially useful fluorinated aromatic compound, for example, a fluorobenzene, a fluorine substituted benzophenone, a fluorine substituted diarylsulfone can be prepared with ease in economy without specific equipment.