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1. 发明专利

JPH06287542A JOINT SHEET 失效
公开(公告)号：JPH06287542A
公开(公告)日：1994-10-11
申请号：JP7294092
申请日：1992-02-24
申请人： NICHIAS CORP
发明人： ASHIZAWA MASAAKI , WATANABE YUJI , TSUKADA MASANORI , NAKANO MITSUYUKI
IPC分类号： C09K3/10
摘要： PURPOSE:To prepare a flexible joint sheet having an improved compression ratio and good sealing properties by incorporating a specified amt. of cork having a grain size finer than 50 meshes into the sheet. CONSTITUTION:This flexible joint sheet is prepd. by incorporating cork having a grain size finer than 50 meshes into a joint sheet comprising an org. fiber, an inorg. fiber other than asbestos, an inorg. filler, a rubber, and rubber chemicals in an ant. of the cork of 2-4wt.% based on the total solid content of the sheet.

2. 发明专利

JPH0599574A DISK ROLL AND FABRICATION THEREOF 失效
公开(公告)号：JPH0599574A
公开(公告)日：1993-04-20
申请号：JP29251991
申请日：1991-10-11
申请人： NICHIAS CORP
发明人： AOKI SUSUMU , ASHIZAWA MASAAKI
IPC分类号： C21D1/00 , C03B13/16 , C03B35/18 , C04B35/80 , C21D9/56 , F27B9/24
摘要： PURPOSE:To provide a disk roll having excellent heat resistance and wear resistance as well as a proper magnitude frictional coefficient by forming a sheet by heating and compressing a mixture composition where rubber chemicals, etc., are added in particular inorganic fibers, etc., and forming a disk raw material by blanking the sheet. CONSTITUTION:In a roll for a bridle roll, a fired disk 1 is fitted to a shaft 2 having a cooling water hole 2 and a rock nut 4 is tightened through a retainer ring 3. In this case, a disk raw material of the disk roll is formed by blanking a sheet which is yielded by heating and compressing inorganic fibers having no shaft excepting asbestos fibers or 20-80wt.% of the foregoing inorganic fibers and organic fibers and a mixture composition of rubber chemicals and a filler into 10-30wt.% rubber. Upon manufacture, the sheet blanked into the foregoing disk is fired at about 200 deg.C, and the fired disk 1 is inserted and fitted to many sheet shafts and it is after compressed and fixed, surface-polished.

3. 发明专利

JPH0524190B2 失效
公开(公告)号：JPH0524190B2
公开(公告)日：1993-04-07
申请号：JP18579388
申请日：1988-07-26
申请人： NICHIAS CORP
发明人： ASHIZAWA MASAAKI , NISHIMOTO KAZUO , SAITO HIROSHI
IPC分类号： C09K3/10 , F16J15/12

4. 发明专利

JPH02180981A JOINT SHEET AND ITS PRODUCTION 失效
公开(公告)号：JPH02180981A
公开(公告)日：1990-07-13
申请号：JP33506788
申请日：1988-12-30
申请人： NICHIAS CORP
发明人： YAMAMOTO TSUTOMU , ASHIZAWA MASAAKI , NISHIMOTO KAZUO , WATANABE YUJI
IPC分类号： F16J15/10 , C04B38/00 , C09K3/10
摘要： PURPOSE:To obtain the title sheet excellent in compression recovery and stress relaxation resistance by mixing a rubbery material with a specified amount of a specified base fiber together with a filler and rubber chemicals and subjecting the mixture to specified processing. CONSTITUTION:100 pts.wt. rubbery material is mixed with 50-700 pts.wt. base material comprising 30-85wt.% sepiolite fiber, 5-15wt.% organic fiber (e.g. aromatic polyamide fiber) and the balance of an inorganic fiber (e.g. glass fiber) except asbestos fiber and sepiolite fiber together with a filler and rubber chemicals, and the obtained mixture is subjected to specified processing.

5. 发明专利

JPH0220587A JOINT SEAT 失效
公开(公告)号：JPH0220587A
公开(公告)日：1990-01-24
申请号：JP17052988
申请日：1988-07-08
申请人： NICHIAS CORP
发明人： ASHIZAWA MASAAKI , NISHIMOTO KAZUO , WATANABE YUJI , MACHII MICHIO
IPC分类号： F16J15/10 , C09K3/10
摘要： PURPOSE:To enable the formation of a joint seat which exhibits excellent compression recovery characteristics while rubbery material loads are limited within the range in which no problem arises on production by employing an elastic graphite article as the filler of a joint seat comprising a fiber material, a rubber material and a filler as principal materials. CONSTITUTION:The title joint seat comprises a fiber material, a rubber material and a filler as principal materials. An elastic graphite article is contained as the filler in an amt. of 5wt.% or higher. The elastic graphite article is obtd. by heat treating a bulk mesophase formed in the carbonization process of pitch or the like or a nitration product of raw coke as it is and then graphitizing the product. Its bulk density is as low as 0.5-0.2g/cc. For the morphology thereof, the surface irregularity is larger than that of a graphite article, and the inner portion is composed of a spongy structure comprising thin films.

6. 发明专利

JPH01252686A MATERIAL FOR RUBBER-COATED GASKET 失效
公开(公告)号：JPH01252686A
公开(公告)日：1989-10-09
申请号：JP18579388
申请日：1988-07-26
申请人： NICHIAS CORP
发明人： ASHIZAWA MASAAKI , NISHIMOTO KAZUO , SAITO HIROSHI
IPC分类号： C09K3/10 , F16J15/12
摘要： PURPOSE:To obtain the title material improved in adhesion of a metal plate to a rubber layer and resistance to an antifreezer, by bonding a specified rubber layer to at least either surface of a metal plate with a primer based on a phenolic resin. CONSTITUTION:A rubber composition is obtained by mixing a nitrile rubber with 30-150 pts.wt., per 100 pts.wt. rubber compound, flaky filler the (e.g., talc) of a diameter

7. 发明专利

JPS624582B2 失效
公开(公告)号：JPS624582B2
公开(公告)日：1987-01-30
申请号：JP20310281
申请日：1981-12-16
申请人： NICHIAS CORP
发明人： YAMAMOTO TSUTOMU , ASHIZAWA MASAAKI , SHIMODA YUTAKA
IPC分类号： B29D99/00 , B29B7/00 , B29B15/00 , B29C41/00 , B32B15/06 , B32B15/08 , F16J15/12

8. 发明专利

JP2587740B2 失效
公开(公告)号：JP2587740B2
公开(公告)日：1997-03-05
申请号：JP29251991
申请日：1991-10-11
申请人： NICHIAS CORP
发明人： AOKI SUSUMU , ASHIZAWA MASAAKI
IPC分类号： C21D1/00 , C03B13/16 , C03B35/18 , C04B35/80 , C21D9/56 , F27B9/24

9. 发明专利

JPH06287539A PRODUCTION OF JOINT SHEET 失效
公开(公告)号：JPH06287539A
公开(公告)日：1994-10-11
申请号：JP5956892
申请日：1992-02-14
申请人： NICHIAS CORP
发明人： ASHIZAWA MASAAKI , WATANABE YUJI , SHIGETOME SHOICHI , TSUKADA MASANORI , NAKANO MITSUYUKI
IPC分类号： C08L21/00 , C09K3/10
摘要： PURPOSE:To improve the tensile strength, steam resistance, and productivity of a joint sheet by producing it from a specific rubber latex, rubber chemicals. an org. fiber, an inorg. fiber other than asbestos, and an inorg. filler. CONSTITUTION:This joint sheet is produced from a rubber latex, rubber chemicals, an org. fiber, an inorg. fiber other than asbestos, and an inorg. filler. The latex is obtd. by polymerizing a monomer mixture comprising 20-45wt.% ethylenically unsatd. nitrile monomer and 80-55wt.% copolymerizable monomer in the presence of an emulsifier mixture comprising 80-60wt. % anionic emulsifier and 20-40wt.% nonionic emulsifier, contains 5-12wt.% emulsifier based on the copolymer, and contains copolymer particles having a mean diameter of 100-150nm, a toluene-insol. content of 10-30wt.%, and a proportion of copolymer having a mol.wt. of 50,000 or lower in the tetrahydrofuran-sol. components of the copolymer of 20wt.% or lower.

10. 发明专利

JPH0539384A RUBBER COMPOSITION AND ITS MANUFACTURE 失效
公开(公告)号：JPH0539384A
公开(公告)日：1993-02-19
申请号：JP30968391
申请日：1991-10-29
申请人： NICHIAS CORP
发明人： ASHIZAWA MASAAKI , NISHIMOTO KAZUO , ITO SHUJI , NAGAI YASUTAKA , NAKANO MITSUYUKI
IPC分类号： C08J5/04 , C08K3/00 , C08K7/00 , C08K7/02 , C08L21/00
摘要： PURPOSE:To improve the extensibility, tear strength, tensile strength and modulus by using rubber, fibrous polytetrafluoroethylene, a vulcanizing agent, and an inorganic filler as constituents. CONSTITUTION:A polytetrafluoroethylene powder and an inorganic filler are kneaded under a high shear force to give a fibrous polytetrafluoroethylene powder and to disperse the inorganic filler among the fibers. 100 pts.wt. rubber is mixed with the polytetrafluoroethylene in an amount of 1-20 pts.wt. and a vulcanizing agent.

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