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1. 发明专利

GB2271356B Method of removing coating films from resin substrates 未知
公开(公告)号：GB2271356B
公开(公告)日：1996-01-31
申请号：GB9319758
申请日：1993-09-24
申请人： NISSAN MOTOR , MITSUI PETROCHEMICAL IND
发明人： TERADA MASAHIRO , KAMAE HIROSUKE , YUSAWA MOTOYASU , WATANABE KAZUYUKI , SAITO MITSUO
IPC分类号： C08J7/00 , B29B17/02 , C08J7/02 , C08J11/06 , C09D9/00
摘要： Improved methods of removing coating films from resin substrates includes first treating the resin substrates in an aqueous alkali solution with a concentration of 0.1 wt % or more at a temperature of 110 DEG C. or more, which temperature is lower than the melting point of the substrates and then polishing the surfaces of the substrates by either bringing them into contact with each other in suitable equipment such as a screw feeder, or using an abrasive in suitable equipment such as a high-speed vessel type stirrer, or subjecting the substrates to a liquid honing process.

2. 发明专利

GB2271356A Method of removing coating films 未知
公开(公告)号：GB2271356A
公开(公告)日：1994-04-13
申请号：GB9319758
申请日：1993-09-24
申请人： NISSAN MOTOR , MITSUI PETROCHEMICAL IND
发明人： TERADA MASAHIRO , KAMAE HIROSUKE , YUSAWA MOTOYASU , WATANABE KAZUYUKI , SAITO MITSUO
IPC分类号： C08J7/00 , B29B17/02 , C08J7/02 , C08J11/06 , C09D9/00
摘要： The improved method of removing the coating films on resin substrates comprises first treating the resin substrates in an aqueous alkali solution with a concentration of 0.1 wt% or more at a temperature of 110 DEG C or more which is lower than the melting point of the substrates and then polishing the surfaces of the substrates by either bringing them into contact with each other in suitable equipment such as a screw feeder, or using an abrasive in suitable equipment such as a high-speed vessel type stirrer, or subjecting the substrates to a liquid honing process. The method assures complete removal of the coating films on the resin substrates and yet the stripped substrates can be recycled to another industrial use. The method is used for removing paint films from polypropylene for use in automobile bumpers.

3. 发明专利

DE4332642A1 未知
公开(公告)号：DE4332642A1
公开(公告)日：1994-03-31
申请号：DE4332642
申请日：1993-09-24
申请人： NISSAN MOTOR , MITSUI PETROCHEMICAL IND
发明人： TERADA MASAHIRO , KAMAE HIROSUKE , YUSAWA MOTOYASU , WATANABE KAZUYUKI , SAITO MITSUO
IPC分类号： C08J7/00 , B29B17/02 , C08J7/02 , C08J11/06 , C09D9/00 , B29C37/00 , B24B31/00
摘要： Improved methods of removing coating films from resin substrates includes first treating the resin substrates in an aqueous alkali solution with a concentration of 0.1 wt % or more at a temperature of 110 DEG C. or more, which temperature is lower than the melting point of the substrates and then polishing the surfaces of the substrates by either bringing them into contact with each other in suitable equipment such as a screw feeder, or using an abrasive in suitable equipment such as a high-speed vessel type stirrer, or subjecting the substrates to a liquid honing process.

4. 发明专利

JPH0820686A AUTOMOTIVE BUMPER MADE OF FLEXIBLE RESIN AND ITS COATED PRODUCT 失效
公开(公告)号：JPH0820686A
公开(公告)日：1996-01-23
申请号：JP15738894
申请日：1994-07-08
申请人： MITSUI PETROCHEMICAL IND , NISSAN MOTOR
发明人： ITO YUICHI , UCHIYAMA AKIRA , KAMAE KOSUKE , TERADA MASAHIRO
IPC分类号： B60R19/03 , C08K3/34 , C08L23/00 , C08L23/08 , C08L23/10
摘要： PURPOSE:To obtain the subject product, comprising a propylene-based specific polymer composition and excellent in appearance, dimensional stability, balance between low-temperature impact resistance and flexibility and coating properties. CONSTITUTION:This automotive bumper comprises a propylene-based resin composition containing 100 pts.wt. total amount of (A) 50-65 pts.wt. propylene- based polymer having >=85mol% propylene content, 20-100g/10min melt flow rate (measured at 230 deg.C under 2.16kg load according to ASTM D 1238) and (B) 50-35 pts.wt. ethylene-alpha-olefin-based copolymer having 30-98mol% ethylene content and (C) 1-10 pts.wt. talc having 1-2.5mum average particle diameter as essential components and further (D) 0.1-30 pts.wt. propylene polymer, obtained by heating (i) a propylene-based polymer having carboxyl or an acid anhydride group with (ii) an amino compound, having flexural elastic modulus measured at 23 deg.C and >=8X10 cm/cm/ deg.C linear expansion coefficient.

5. 发明专利

JPH06107983A REMOVAL OF COATING FILM 失效
公开(公告)号：JPH06107983A
公开(公告)日：1994-04-19
申请号：JP25645892
申请日：1992-09-25
申请人： NISSAN MOTOR , MITSUI PETROCHEMICAL IND
发明人： TERADA MASAHIRO , KAMAE KOSUKE , YUZAWA MOTOYASU , WATANABE KAZUYUKI , SAITO MITSUO
IPC分类号： C08J7/00 , B29B17/02 , C08J7/02 , C09D9/00
摘要： PURPOSE:To provide a process for sufficiently removing a coating film from a resin substrate to an extent to enable the recycling use of the substrate in industrial use. CONSTITUTION:A resin substrate having a coating film on the surface is treated in an aqueous solution of an alkali having a concentration of >=0.1wt.% at a temperature above 110 deg.C and below the melting temperature of the substrate and the substrate is passed through a screen mesh in molten state to remove the coating film from the surface of the resin substrate.

6. 发明专利

JPH07266337A METHOD FOR REMOVING FILM ON SURFACE OF RESIN BASE 失效
公开(公告)号：JPH07266337A
公开(公告)日：1995-10-17
申请号：JP5776294
申请日：1994-03-28
申请人： MITSUI PETROCHEMICAL IND , NISSAN MOTOR
发明人： YUZAWA MOTOYASU , WATANABE KAZUYUKI , SAITO MITSUO , KAMAE KOSUKE , TERADA MASAHIRO
IPC分类号： B09B3/00 , B29B17/00 , C08J11/00
摘要： PURPOSE:To provide a method for removing a film which is not age-colored when the film of a resin base is sufficiently peeled and the base is again recycle- used for industrial utilization. CONSTITUTION:A method for removing a film on a surface of a resin base comprises the steps of heat treating resin base having a film on its surface at a lower temperature than a temperature for melting the base at 110 deg.C or higher in alkaline aqueous solution containing 0.1wt.% of alkali concentration and 5ppm or less of oxygen concentration, and further polishing it in contact with surfaces of the bases by using a screw feeder, etc., or, is polishing it by using an abrasive material by using a high-speed tank type agitator, etc., or liquid honing it.

7. 发明专利

JPH07118488A OLEFIN RESIN COMPOSITION FOR EXTERIOR TRIM PART OF AUTOMOBILE 失效
公开(公告)号：JPH07118488A
公开(公告)日：1995-05-09
申请号：JP26242093
申请日：1993-10-20
申请人： NISSAN MOTOR , MITSUI PETROCHEMICAL IND
发明人： KAMAE KOSUKE , TERADA MASAHIRO , HIRAOKA SHOJI , NAGAMI SATORU
IPC分类号： C08K3/00 , C08L23/16 , C08L53/00
摘要： PURPOSE:To provide an olefin resin composition having a specific composition, exhibiting excellent paintability with an acrylic melamine resin paint without using pretreatment, having excellent moldability and giving an exterior trim part of automobile having excellent rigidity, impact resistance, etc. CONSTITUTION:The objective composition is composed of (A) a propylene- ethylene block copolymer having a melt flow rate of 20-100g/10min and containing 85-95wt.% of a crystalline polypropylene block having a melt flow rate of 50-200g/10min and 5-15wt.% of a propylene-ethylene random copolymer block having ethylene content of 20-50wt.%, (B) an ethylene-alpha-olefin copolymer rubber having a Mooney viscosity of 10-60 and an ethylene content of 60-95mol%, (C) a graft-modified propylene polymer grafted with 0.5-5wt.% of maleic acid and having an intrinsic viscosity of 0.2-0.5dl/g, (D) a conjugated diene polymer having OH on the terminal and having a number-average molecular weight of 1,000-8,000 and (E) an inorganic filter having a specific surface area of >=30,000cm /g and an average particle diameter of 0.8-2.5mum, etc.

8. 发明专利

JPH06107982A REMOVAL OF COATING FILM 失效
公开(公告)号：JPH06107982A
公开(公告)日：1994-04-19
申请号：JP25645792
申请日：1992-09-25
申请人： NISSAN MOTOR , MITSUI PETROCHEMICAL IND
发明人： TERADA MASAHIRO , KAMAE KOSUKE , YUZAWA MOTOYASU , WATANABE KAZUYUKI , SAITO MITSUO
IPC分类号： C08J7/00 , B29B17/02 , C08J7/02 , C08J11/06 , C09D9/00
摘要： PURPOSE:To provide a process for sufficiently removing a coating film from a resin substrate to an extent to enable the recycling use of the substrate in industrial use. CONSTITUTION:A resin substrate having a coating film on the surface is treated in an aqueous solution of an alkali having a concentration of >=0.1wt.% at a temperature above 110 deg.C and below the melting temperature of the substrate and the surfaces of the substrates are polished with a screw feeder, etc., by contacting the surfaces with each other. As an alternative, the surface is polished with a polishing material using a high-speed tank stirring apparatus, etc., or polished by a liquid honing process.

9. 发明专利

ES2125232T3 未知
公开(公告)号：ES2125232T3
公开(公告)日：1999-03-01
申请号：ES91401759
申请日：1991-06-27
申请人： NISSAN MOTOR , MITSUBISHI CHEM CORP
发明人： TERADA MASAHIRO , SUGIMOTO NOBUJI , WATANABE TOSHIRO , SUGIMOTO TAKASHI
IPC分类号： B29C45/00 , B60R19/03 , C08J5/00 , C08L23/08 , C08L23/10 , C08L23/12 , C08L23/14 , C08L23/16 , B60R19/02
摘要： A large-sized exterior part of an automotive vehicle, injection-molded and formed of a polymer material comprising: (A) polypropylene in an amount ranging from 50 to 70 weight %, the polypropylene containing ethylene in an amount not more than 15 weight % relative to the polypropylene and having a MFR (at 230 DEG C) ranging from 5 to 60 g/10 min.; (B) ethylene-propylene copolymer rubber polymerized in presence of a vanadium-based catalyst, in an amount ranging from 5 to 30 weight %, the copolymer containing propylene in an amount ranging from 20 to 40 weight % relative to the ethylene-propylene copolymer rubber and having a Mooney viscosity ML1+4(100 DEG C) ranging from 20 to 80; (C) ethylene-propylene copolymer rubber polymerized in presence of a titanium-based catalyst, in an amount ranging from 5 to 45 weight %, the copolymer containing propylene in an amount ranging from 30 to 70 weight % relative to the ethylene-prolylene copolymer rubber and having a Mooney viscosity ML1+4(100 DEG C) ranging from 20 to 75; and (D) polyethylene in an amount not more than 10 weight %, the polyethylene having a MFR (at 190 DEG C) ranging from 5 to 50 g/10 min. The injection-molded article has an average thickness ranging from 2 to 6 mm, a flexural elastic modulus ranging from 3000 to 6000 kg/cm , and a coefficient of linear expansion not higher than 8 X 10 / DEG C.

10. 发明专利

ES2083540T3 未知
公开(公告)号：ES2083540T3
公开(公告)日：1996-04-16
申请号：ES91401729
申请日：1991-06-26
申请人： NISSAN MOTOR , UBE INDUSTRIES
发明人： TERADA MASAHIRO , MORITA HIDEYO , UENO KOHEI , TANAKA KAZUYOSHI
IPC分类号： B60R19/03 , C08K3/34 , C08L23/16 , C08L53/00 , C08L53/02
摘要： The invention provides a moldable resin composition comprising (A) 50-73 wt% of a crystalline ethylene-propylene block copolymer in which the content of ethylene is 5-15 wt%, (B) 10-20 wt% of a hydro-genated block copolymer consisting of (i) 10-40 wt% of blocks of an aromatic vinyl compound polymer and (ii) 90-60 wt% of blocks of a conjugated diene polymer, (C) 2-7 wt% of an amorphous ethylene-propylene copolymer in which the content of propylene is 20-30 wt% and (D) 15-25 wt% of talc, with the proviso that the total amount of (B) and (C) is 12-25 wt%. The particulars of the components (A) to (D), including the degree of solubility of the polypropylene component of the block copolymer (A), the degree of hydrogenation of each of the blocks (i) and (ii) of the copolymer (B), Mooney viscosity of the copolymer (C) and the particle size distribution of the talc (D), are strictly specified. The resin composition can be molded into automobile bumpers which are good in appearance and paint coatability and sufficiently high in both rigidity and impact resistance.

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