Patents Assigned to Asahi-Dow Limited
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Patent number: 4572803Abstract: Rare-earth metal salts of organic carboxylic acids of this invention constitute themselves phosphors which exhibit unusually high luminescence efficiency, excel in chemical and physical stability and weatherability, show high affinity for other chemical substances and promise extensive usefulness in the field of high-performance luminescent products.Type: GrantFiled: June 30, 1982Date of Patent: February 25, 1986Assignee: Asahi Dow LimitedInventors: Katsuhiko Yamazoe, Akira Yoshino, Yoshiharu Kitahama, Isamu Iwami
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Patent number: 4543391Abstract: Polyphenylene ether compositions having enhanced commercial value as engineering resin, which are excellent in the appearance characteristics, such as surface gloss and weld part beauty, and stress crack resistance. The present resin composition is composed of a polyether resin (PPE) and a rubber reinforced high impact polystyrene (HIPS), if desired, together with a vinyl aromatic compound resin, wherein the PPE has specific characteristics with respect to the intrinsic viscosity, the eluting amount, and others.Type: GrantFiled: November 19, 1981Date of Patent: September 24, 1985Assignee: Asahi-Dow LimitedInventors: Isao Kuribayashi, Kunio Fukuda
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Patent number: 4543392Abstract: A polymeric material which is superior in mechanical strength, dimensional stability, moldability and resistances to chemicals, heat and abrasion comprises a copolymer composed of polymer chain moieties of a copolymer containing an imide compound of an .alpha.,.beta.-unsaturated dicarboxylic acid and polymer chain moieties of a polyamide, both chain moieties being bonded to each other. The material may be blended with thermoplastic resins. Furthermore, the material may be reinforced with glass fiber, etc.Type: GrantFiled: May 26, 1983Date of Patent: September 24, 1985Assignee: Asahi-Dow LimitedInventors: Hideo Kasahara, Hiroshi Suzuki, Noriaki Umeda
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Patent number: 4537935Abstract: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene.Type: GrantFiled: October 29, 1984Date of Patent: August 27, 1985Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Hideo Hata, Takashi Kaneko
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Patent number: 4520072Abstract: A compound selected from some classes of coloring substances having good resistance to light and oxidation is found to have a high photosensitive activity when it is supported in an actively dispersed form on a carrier. The sensitizer obtained is useful for heterogeneous system photosensitive oxidation for various purposes, for example, treatment of harmful organisms or impurities contained in the air or water. The sensitizer has also good resistance to light and oxidation and can be used repeatedly for a long time.Type: GrantFiled: March 30, 1982Date of Patent: May 28, 1985Assignee: Asahi-Dow LimitedInventors: Akira Yoshino, Isamu Iwami
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Patent number: 4501634Abstract: A high-orientation multilayered film incorporates at least one cold drawn, highly oriented resin layer excellent in mechanical strength and suitable mainly for use as packaging material. Because of its specific stratal construction which is highly adaptable to afford a wide variety of specific functions, the composite film is suitable for manufacture of thermally shrinkable films which excel in transparency and in ability to shrink rapidly particularly at low temperatures. Also disclosed is a process for drawing at specific low temperatures at high expansion ratios the aforementioned multiplicity of resin layers either all by themselves or in conjunction with layers of other resins by utilizing the cold drawability of the aforementioned resin layers excelling in mechanical strength.Type: GrantFiled: November 1, 1983Date of Patent: February 26, 1985Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Osamu Mizukami, Hideo Hata, Junichi Kageyama, Takashi Kaneko
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Patent number: 4499241Abstract: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefin resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene.Type: GrantFiled: December 5, 1980Date of Patent: February 12, 1985Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Hideo Hata, Takashi Kaneko
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Patent number: 4483958Abstract: A thermoplastic polymer composition having well-balanced physical properties, especially impact strength and gloss, is provided, which comprises an aromatic polyether resin, a styrene polymer and/or a rubber-enforced styrene polymer containing a cross-linked conjugated diolefin polymer in a dispersed island state, an inorganic filler, and a thermoplastic elastomer selected from styrene-conjugated diolefin copolymers and styrenic polymer grafted polyolefin.Type: GrantFiled: May 4, 1983Date of Patent: November 20, 1984Assignee: Asahi-Dow LimitedInventors: Nobutoshi Kosaka, deceased, Shinichi Izawa, Jun Sugiyama
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Patent number: 4481334Abstract: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particulaly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene.Type: GrantFiled: January 12, 1983Date of Patent: November 6, 1984Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Hideo Hata, Takashi Kaneko
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Patent number: 4472228Abstract: A high-orientation multilayered film incorporates at least one cold drawn, highly oriented resin layer excellent in mechanical strength and suitable mainly for use as packaging material. Because of its specific stratal construction which is highly adaptable to afford a wide variety of specific functions, the composite film is suitable for manufacture of thermally shrinkable films which excel in transparency and in ability to shrink rapidly particularly at low temperatures. Also disclosed is a process for drawing at specific low temperatures at high expansion ratios the aforementioned multiplicity of resin layers either all by themselves or in conjunction with layers of other resins by utilizing the cold drawability of the aforementioned resin layers excelling in mechanical strength.Type: GrantFiled: December 8, 1983Date of Patent: September 18, 1984Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Osamu Mizukami, Hideo Hata, Junichi Kageyama, Takashi Kaneko
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Patent number: 4469753Abstract: A high-orientation multilayered film incorporates at least one cold drawn, highly oriented resin layer excellent in mechanical strength and suitable mainly for use as packaging material. Because of its specific stratal construction which is highly adaptable to afford a wide variety of specific functions, the composite film is suitable for manufacture of thermally shrinkable films which excel in transparency and in ability to shrink rapidly particularly at low temperatures. Also disclosed is a process for drawing at specific low temperatures at high expansion ratios the aforementioned multiplicity of resin layers either all by themselves or in conjunction with layers of other resins by utilizing the cold drawability of the aforementioned resin layers excelling in mechanical strength.Type: GrantFiled: December 8, 1983Date of Patent: September 4, 1984Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Osamu Mizukami, Hideo Hata, Junichi Kageyama, Takashi Kaneko
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Patent number: 4469752Abstract: A high-orientation multilayered film incorporates at least one cold drawn, highly oriented resin layer excellent in mechanical strength and suitable mainly for use as packaging material. Because of its specific stratal construction which is highly adaptable to afford a wide variety of specific functions, the composite film is suitable for manufacture of thermally shrinkable films which excel in transparency and in ability to shrink rapidly particularly at low temperatures. Also disclosed is a process for drawing at specific low temperatures at high expansion ratios the aforementioned multiplicity of resin layers either all by themselves or in conjunction with layers of other resins by utilizing the cold drawability of the aforementioned resin layers excelling in mechanical strength.Type: GrantFiled: December 8, 1983Date of Patent: September 4, 1984Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Osamu Mizukami, Hideo Hata, Junichi Kageyama, Takashi Kaneko
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Patent number: 4465215Abstract: A cutting device using as its cutting edge a coarse file-like face, a method for cutting a thin sheet or film by causing at least the cut-starting portion of the thin sheet or film to be pressed against the coarse file-like face of the cutting device, and a dispenser for a thin sheet or film provided with the aforementioned cutting device using said coarse file-like face as a cutting edge thereof are disclosed. A thin sheet or film is readily torn when a notch or cut is formed at the cut-starting portion of the sheet or film. The present invention makes use of this property of the thin sheet or film.Type: GrantFiled: January 12, 1982Date of Patent: August 14, 1984Assignee: Asahi-Dow LimitedInventor: Hisao Kai
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Patent number: 4463162Abstract: A condensation polymer having a .eta.sp/C=0.1-1.5, containing an anthracene unit in the main chain of the polymer, which is found to have various functions of ultraviolet absorption, fluorescence emission, photoconductivity, organic semiconductor characteristics, etc. as well as excellent flexibility and mechanical strength, is prepared by condensation of an anthracenediol compound with a dicarboxylic acid dihalide or a hydrocarbylene dihalide.Type: GrantFiled: December 4, 1981Date of Patent: July 31, 1984Assignee: Asahi-Dow LimitedInventors: Sumitaka Nogami, Tsuneo Wakabayashi, Eiichi Oono, Yoshiharu Kitahama, Isamu Iwami
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Patent number: 4454303Abstract: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B), and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene.Type: GrantFiled: January 12, 1983Date of Patent: June 12, 1984Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Hideo Hata, Takashi Kaneko
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Patent number: 4446272Abstract: A resin composition having nice color tone and high crack-resistance as well as flame-retardancy is obtained by blending(A) 100 weight parts of a resin composition containing a rubber-reinforced vinyl aromatic polymer and polyphenylene ether represented by the following general formula: ##STR1## wherein each of R.sub.1 and R.sub.2 represents a monovalent residue such as the same or different alkyl group having 1-4 carbon atoms, aryl group, halogen and hydrogen, and n represents the polymerization degree or a polyphenylene ether onto which a vinyl aromatic compound is graft-copolymerized, in which the polyphenylene ether content is 5-70 wt. % (based on the weight of the resin part),(B) 1-30 weight parts of a halogenated aromatic compound and(C) 0.5-20 weight parts of a non-crystalline ethylene-propylene copolymer.Type: GrantFiled: September 10, 1981Date of Patent: May 1, 1984Assignee: Asahi-Dow LimitedInventors: Kunio Fukuda, Kichiya Tazaki, Akihisa Takano, Yuji Kusumi
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Patent number: 4443380Abstract: Rare-earth metal salts of organic carboxylic acids of this invention constitute themselves phosphors which exhibit unusually high luminescence efficiency, excel in chemical and physical stability and weatherability, show high affinity for other chemical substances and promise extensive usefulness in the field of high-performance luminescent products.Type: GrantFiled: August 22, 1980Date of Patent: April 17, 1984Assignee: Asahi-Dow LimitedInventors: Katsuhiko Yamazoe, Akira Yoshino, Yoshiharu Kitahama, Isamu Iwami
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Patent number: 4439492Abstract: In injection molding thermoplastic resin compositions containing reinforcing materials and/or fillers, high quality molded articles superior in surface gloss and exhibiting substantially no surface defect can be obtained, by employing a technical measure, in which only superficial layer of the inner wall surface of the mold is selectively heated, by high-frequency induction heating, to a temperature above the heat distortion temperature of the thermoplastic resin composition employed prior to injection molding and cooling and solidifying the resin.Type: GrantFiled: March 29, 1982Date of Patent: March 27, 1984Assignee: Asahi-Dow LimitedInventors: Akihiro Wada, Kichiya Tazaki, Tamotsu Tahara, Hiroshi Suzuki, Yukihisa Mizutani
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Patent number: 4430378Abstract: A high-orientation multilayered film incorporates at least one cold drawn, highly oriented resin layer excellent in mechanical strength and suitable mainly for use as packaging material. Because of its specific stratal construction which is highly adaptable to afford a wide variety of specific functions, the composite film is suitable for manufacture of thermally shrinkable films which excel in transparency and in ability to shrink rapidly particularly at low temperatures. Also disclosed is a process for drawing at specific low temperatures at high expansion ratios the aforementioned multiplicity of resin layers either all by themselves or in conjunction with layers of other resins by utilizing the cold drawability of the aforementioned resin layers excelling in mechanical strength.Type: GrantFiled: January 21, 1983Date of Patent: February 7, 1984Assignee: Asahi-Dow LimitedInventors: Isao Yoshimura, Osamu Mizukami, Hideo Hata, Junichi Kageyama, Takashi Kaneko
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Patent number: RE31744Abstract: A thermoplastic synthetic resin such as polyethylene or ethylene-vinyl acetate copolymer resin containing 0.1 to 10 wt. % of a specific additive selected from specific classes of compounds, namely saturated higher fatty acid amides, saturated higher aliphatic amines and complete esters of saturated higher fatty acids is found to be very suitable for production of expanded articles and can be easily formed into expanded articles with little shrinkage after expansion, free from creases on the surface or cracks on the cell walls, and having excellent characteristics such as good closed cellular characteristic, high compressive strength, low density, etc.Type: GrantFiled: June 8, 1981Date of Patent: November 20, 1984Assignee: Asahi-Dow LimitedInventors: Seizaburo Watanabe, Yutaka Matsuki