公开(公告)号：DE3788642T2

公开(公告)日：1994-05-19

申请号：DE3788642

申请日：1987-09-25

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  TSUBOTA TOSHIO ,  IMAI SHIRO

IPC: B01D39/16 ,  D01F6/66 ,  D01F6/76 ,  D01F8/10 ,  D01F8/16 ,  D06M11/00 ,  C08J7/12 ,  C08J7/14 ,  C08G75/20

Abstract: Polyphenylene sulphone fibre (1) is mainly composed of structure units of general formula (I) where X is 0, 1 or 2 and the ave. of X represented by X, lies between 1.0 and 2.0 (pref. between 1.4 and 2.0). The mole ratio, SO/SOx should be 0.3 or more. The degree of orientation of the polyphenylene sulphone fibre (1) is pref. 60% or more. The specific surface area of (1) should be 0.4 m2/g or more. (1) is specified to be a porous fibre.

公开(公告)号：DE3788642D1

公开(公告)日：1994-02-10

申请号：DE3788642

申请日：1987-09-25

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  TSUBOTA TOSHIO ,  IMAI SHIRO

IPC: B01D39/16 ,  D01F6/66 ,  D01F6/76 ,  D01F8/10 ,  D01F8/16 ,  D06M11/00 ,  C08J7/12 ,  C08J7/14 ,  C08G75/20

Abstract: Polyphenylene sulphone fibre (1) is mainly composed of structure units of general formula (I) where X is 0, 1 or 2 and the ave. of X represented by X, lies between 1.0 and 2.0 (pref. between 1.4 and 2.0). The mole ratio, SO/SOx should be 0.3 or more. The degree of orientation of the polyphenylene sulphone fibre (1) is pref. 60% or more. The specific surface area of (1) should be 0.4 m2/g or more. (1) is specified to be a porous fibre.

公开(公告)号：CA1159320A

公开(公告)日：1983-12-27

申请号：CA373849

申请日：1981-03-25

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  OKAMOTO MIYOSHI

IPC: D06N3/00

Abstract: In a method for producing a soft sheet material containing thinned fibers or filaments and a viscoelastic substance, the improvement comprising: (A) applying a mixture of a viscoelastic substance and a temporary filler to a sheet Material containing thinnable fibers or filaments; (B) thinning the thinnable fibers or filaments forming said sheet material; (B') applying temporary filler to said sheet material or relocating said temporary filler applied previously at step (A) within said sheet material, whenever necessary; (C) applying a viscoelastic substance; (D) removing said temporary filler; and (E) napping the sheet, whenever necessary, to thereby obtain a leatherlike sheet Material which, though soft, has good mechanical properties such as high abrasion resistance and high tear strength. A leather-like sheet material is produced which is free from deficiencies such as low abrasion resistance and tear strength even where the thickness is further reduced.

公开(公告)号：IT8068601D0

公开(公告)日：1980-10-20

申请号：IT6860180

申请日：1980-10-20

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  OKAMOTO MIYOSHI

IPC: B29D20060101 ,  B29D

公开(公告)号：CA1335745C

公开(公告)日：1995-05-30

申请号：CA552830

申请日：1987-11-26

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  TSUBOTA TOSHIO ,  IMAI SHIRO

IPC: B01D39/16 ,  D01F6/66 ,  D01F6/76 ,  D01F8/10 ,  D01F8/16 ,  C08G75/20 ,  C08J7/14 ,  D01F11/08

Abstract: Disclosed are polyphenylene sulfone fibers mainly consisting of a structural unit represented by the general formula (wherein x is 0 or 1 or 2, ?, the average value of x is 1.0 to 2.0 and the bond attached to the benzene ring is in the para- or meta-position with respect to the SOx group). The fibers can be obtained by oxidizing polyphenylene sulfide fibers mainly consisting of a structural unit represented by the formula (wherein the bond attached to the benzene ring is in the para- or meta-position with respect to the S atom) with an organic peracid. The fibers of the present invention have very excellent heat resistance and chemicals resistance and are useful for the production of woven, knitted or n-on-woven sheets or fabrics, particularly filters for refining concentrated sulfuric acid or nitric acid.

公开(公告)号：EP0422218A4

公开(公告)日：1990-11-20

申请号：EP88908387

申请日：1988-09-30

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  KOTERA YASUKAZU

IPC: C08G63/685 ,  C08L67/00 ,  D01F6/62 ,  D01F6/84 ,  D01F8/14 ,  D01F8/16

CPC classification number: D01F8/16 ,  C08G63/685 ,  C08L67/00 ,  D01F6/62 ,  D01F6/84 ,  D01F8/14 ,  C08L2666/02

Abstract: Advanced reinforced materials, base materials for the advanced reinforced materials, and processes for their production are disclosed. More particularly, the present invention is related to (1) high-strength liquid crystal resin moldings having a specific surface area as high as 0.29 m2/g or above, (2) liquid resin composites composed of liquid crystal resins and non-liquid crystal resins, wherein the liquid crystal resins are in fibrous form in the non-liquid crystal resins, (3) colored liquid crystal resin moldings and liquid crystal resin composites, (4) antistatic liquid crystal resin moldings and liquid crystal resin composites, (5) infusibilized liquid crystal resin moldings and liquid crystal resin composites, and processes for their production, and (6) processes for rapid solid-phase polymerization for producing the liquid crystal resin moldings and liquid crystal resin composites using organophosphorus compounds.

公开(公告)号：JPH06228807A

公开(公告)日：1994-08-16

申请号：JP1756493

申请日：1993-02-04

Applicant: TORAY INDUSTRIES

Inventor： UMEZAWA MASAO ,  KURATA NOBUO

IPC: D01D5/36

Abstract: PURPOSE:To provide the spinneret for conjugate fibers, enabling its disassembly and assembly and facilitating its cleaning without reducing the number of the island components of the conjugate fiber. CONSTITUTION:The spinneret used for conjugate spinning and comprising at least three spinneret plates A, B, C having penetrated holes 41, 42, 43 in the order of A/B/C is characterized in that the holes of the spinneret plates A and B comprise at least one hole group 4, 5 comprising plural holes 41, 42, 43, that projections 51, 52, 53 larger than the holes 41, 42, 43 opened on the spinneret plate B surface side of the spinneret plate A and having the holes 41, 42, 43 are disposed on the spinneret A surface side of the spinneret plate B, and that a funnel-like hole 6 having a larger diameter than all the holes 41, 42, 43 of the hole group 5 opened on the spinneret plate C surface side of the spinneret plate B is disposed in the spinneret plate C.

公开(公告)号：JPH05209368A

公开(公告)日：1993-08-20

申请号：JP15670792

申请日：1992-06-16

Applicant: TORAY INDUSTRIES

Inventor： IMAI SHIRO ,  UMEZAWA MASAO ,  TSUBOTA TOSHIO

IPC: C08G75/02 ,  C08G75/00 ,  C08G75/06 ,  C08G75/20 ,  D01F6/76 ,  D06M11/00 ,  D06M13/184 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30

Abstract: PURPOSE:To obtain the subject fiber resistant to heat and chemicals, having high knot strength by oxidizing highly oriented polyphenylene sulfide fibers having specific structure using an organic peracid. CONSTITUTION:Polyphenylene sulfide fibers of >=20Angstrom crystal size and >=60% orientation degree pref. comprising ultrafine fibers is first produced by high- speed spinning at >=4000m/min of a polymer composed of structural unit of formula I. The fibers is then put to oxidation treatment using an organic peracid (pref. peracetic acid) to convert the structural unit to a new structural unit of formula II, thus obtaining the objective polyphenylene sulfone fibers comprising ultrafine fibers of >=20Angstrom crystal size and >=60% orientation degree. The fibers is highly resistant to heat and chemicals such as concentrated sulfuric or nitric acid and also rich in flexibility, and can be suitably used for filters, etc., in sectors being required for heat and chemical resistances.

公开(公告)号：JPH0478730B2

公开(公告)日：1992-12-14

申请号：JP24507487

申请日：1987-09-28

Applicant: TORAY INDUSTRIES

Inventor： IMAI SHIRO ,  UMEZAWA MASAO ,  TSUBOTA TOSHIO

IPC: C08G75/00 ,  C08G75/02 ,  C08G75/029 ,  C08G75/06 ,  C08G75/20 ,  D01F6/76 ,  D06M11/00 ,  D06M13/196 ,  D06M23/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30

公开(公告)号：JPH03260177A

公开(公告)日：1991-11-20

申请号：JP5227490

申请日：1990-03-02

Applicant: TORAY INDUSTRIES

Inventor： SUZUKI AKIRA ,  UMEZAWA MASAO ,  MIURA SADAO

IPC: C08L81/06 ,  C08G75/00 ,  C08G75/20 ,  C08L81/00 ,  C09J161/06 ,  C09J179/08 ,  D04H1/4326 ,  D04H1/587 ,  D06M15/256 ,  D06M15/41 ,  D06M15/59 ,  D06M15/63 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  H05K1/03

Abstract: PURPOSE:To obtain a sheet-like article having excellent heat resistance and chemical resistance by combining a sheet-like article consisting of a fiber having a recurring unit of paraphenylene sulfone with a binder having specific characteristics. CONSTITUTION:A binder unmelting or being >=300 deg.C in melting point and having heat resistance and chemical resistance, e.g. a resin consisting of polyparaphenylene sulfone expressed by the formula [X is 0-2 and the ratio of recurring unit in which X is 2 is >=70% (sulfonated ratio)] is applied to a fiber, e.g. nonwoven fabric (or woven fabric) consisting of polyparaphenylene sulfone expressed by the above-mentioned formula and the resin-coated fiber is thermally cured to provide the objective fiber sheet-like article having excellent heat resistance, and chemical resistance. Furthermore, when the binder is polyimide, the sheet-like article having extremely excellent heat resistance is obtained and when the binder is tetrafluoroethylene resin, the sheet-like article having excellent chemical resistance as well as excellent water repellency and oil repellency is obtained.