Fabric Composed Of A Fiber Or Strand Which Is Of Specific Structural Definition Patents (Class 442/60)
  • Patent number: 5851930
    Abstract: A rigid three-dimensionally shaped fiber network structure having improved post-yield dimensional recovery is composed of a deformed textile fabric network structure containing: (A) at least one oriented, semi-crystalline monofilament yarn containing a thermoplastic polymer and disposed in the deformed fabric so as to provide a plurality of monofilament cross-over points therein; and (B) a cured crosslinkable resin impregnating the deformed network structure so as to effect bonding of all or substantially all of the monofilament cross-over points.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 22, 1998
    Assignee: Hoechst Celanese Corp.
    Inventors: William E. Bessey, Gerald Peter Rumierz, Clinton Dale Felton
  • Patent number: 5851646
    Abstract: The present invention provides a lightweight prepreg having uniform formation, low linear thermal expansion coefficient and good mechanical strength, comprising a porous para-oriented aromatic polyamide film and a thermoplastic resin and/or a thermosetting resin, the porous para-oriented aromatic polyamide film being impregnated with the thermoplastic resin and/or the thermosetting resin, a process for producing the same, and a printed circuit substrate/board using the same.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 22, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tsutomu Takahashi, Yoshifumi Tsujimoto, Hiroaki Kumada, Hiroyuki Sato
  • Patent number: 5809806
    Abstract: A cleansing fabric and a method for manufacturing cleansing fabric wherein in the method, separative type ultrafine fiber and highly shrinkable polyester fiber are circular knitted or interlaced such that the highly shrinkable polyester fiber is interposed between the separative ultrafine fibers to obtain a three-layered knitted structure and subjecting the three-layered structure to dyeing. The separative type ultrafine fiber is obtained by conjugate spinning of hydrophilic nylon and lipophilic polyester.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: September 22, 1998
    Assignee: Tong Yang Nylon Co., Ltd.
    Inventors: Jong Sun Yoon, Jae Soo Kim, Byung Joo Kim
  • Patent number: 5807793
    Abstract: A description is provided of laminates for printed circuits using unidirectional glass fabric produced with continuous yarn which is twisted, has a low number of twists or zero twisting turns with different gramme weights, interlaced warpwise with a leno interwoven binding using glass yarns of 5.5 to 22 Tex at a spacing of up to 20 cm. The application of these laminates to the manufacture of printed circuits offers advantages in terms of surface roughness and waviness, dimensional stability, evenness and perforability.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 15, 1998
    Assignee: Gividi Italia S.p.A.
    Inventors: Diego Armando Scari, Marco Scari
  • Patent number: 5792323
    Abstract: A belt for use on a long nip press for dewatering a fibrous web includes a base assembled by spirally winding a prepared structure strip in a plurality of non-overlapping turns. Successive turns are abutted against and joined to those previously wound by sewing or otherwise bonding along the continuous spiral seam thus formed. The prepared structure strip may be a fabric strip woven from lengthwise and crosswise yarns, which may be monofilament yarns of a synthetic polymeric resin. The fabric strip may be of either a single- or multi-layer weave. At least one side of the base, namely, that side which will be on the inside of the belt in its endless loop form, and which slides over the arcuate pressure shoe component of the long nip press during its operation, is coated with a polymeric resin, such as polyurethane, to render it impervious to liquids, and especially to the oil used to lubricate the surface of the arcuate pressure shoe.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: August 11, 1998
    Assignee: Albany International Corp.
    Inventor: Erik Wilhelm Grondahl
  • Patent number: 5783278
    Abstract: This invention provides a reinforcing woven fabric using as weaving threads flat and substantially nontwisted multifilaments of reinforcing fiber having less than 0.5 wt. % of sizing agent provided thereto and a binding property of 400-800 mm in hook drop value, and a method and an apparatus for manufacturing a reinforcing woven fabric by weaving the multifilaments of reinforcing fiber as warps and wefts. A reinforcing woven fabric having a small thickness and an extremely high covering factor and capable of indicating a high strength can be obtained at a low cost as a substrate for reinforcing composite materials.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: July 21, 1998
    Assignee: Toray Industries, Inc.
    Inventors: Akira Nishimura, Kiyoshi Homma, Ikuo Horibe
  • Patent number: 5776597
    Abstract: There is provided a speaker damper for use in an acoustic output device, which exhibits excellent shape retaining property at the time of molding, is highly safe to work environment and has excellent water resistance, heat resistance an durability. The speaker damper is obtained by impregnating cloth formed of mixed yarn of a wholly aromatic polyamide fiber and an aromatic polyester fiber with a polyester resin, and molding the cloth under heat and pressure.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: July 7, 1998
    Assignees: Teijin Limited, Matsushita Electric Industrial Co., Ltd.
    Inventors: Hirosuke Watanabe, Takeo Kimura, Masatoshi Okazaki, Shinya Mizone
  • Patent number: 5773370
    Abstract: An entangled multifilament yarn made from high strength filaments having a tenacity of at least about 7 g/d, a tensile modulus of at least about 150 g/d and an energy-to-break of at least about 8 J/g. The yarn is used to make ballistic resistant articles.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: June 30, 1998
    Assignee: AlliedSignal Inc.
    Inventors: James Jay Dunbar, Chok Bin Tan, Gene Clyde Weedon, Thomas Yiu-Tai Tam, Alfred Lewis Cutrone, Elizabeth Stroud Bledsoe
  • Patent number: 5763032
    Abstract: A composite material having heat shrinkable fibers comprising LLDPE, characterized in that the LLDPE has a weight average molecular weight of from 55,000 to 130,000 and a crystallinity less than 60%.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: June 9, 1998
    Assignee: Raychem Limited
    Inventor: Norman Hutt
  • Patent number: 5759924
    Abstract: An improved translucent architectural fabric reinforced fluoroplastic composite is described exhibiting a transmission of normally incident visible light of at least about 23%, and when subjected to 1:1 biaxial loads up to 25% of the uniaxial tensile breaking strength of the fabric, exhibits a biaxial elongation value in the warp direction that is greater than 0 but less than 1.0%, and a biaxial elongation value in the fill direction that is greater than biaxial elongation value in the warp direction but less than 10%.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: June 2, 1998
    Assignee: Chemfab Corporation
    Inventor: Katherine Mary Sahlin
  • Patent number: 5753351
    Abstract: A nubuck-like woven fabric comprising a two-layered structural yarn wherein ultra-fine polyester multifilaments are primarily disposed in a sheath portion and polyester multifilaments having a larger single fiber thickness are primarily disposed in a core portion, and having an apparent specific gravity of 0.35-0.7 and a shear rigidity of 0.5-1.2 gf/cm.multidot.deg. This woven fabric is produced by a method wherein a woven fabric of a two-layered structural yarn composed of (i) side-by-side type or islands-in-sea type composite multifilaments comprising (a) a readily soluble ingredient and (b) ultra-fine multifilaments-forming ingredient and (ii) highly shrinkable multifilaments, is subjected to a treatment for dissolving and removing ingredient (a) without substantial shrinkage of the two-layered structural yarn, then, the woven fabric is shrunk in a widespread state.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: May 19, 1998
    Assignee: Teijin Limited
    Inventors: Norio Yoshida, Kojiro Shimada, Fumio Shibata, Seiji Tachika
  • Patent number: 5733629
    Abstract: A sorbent article comprises a sorbent layer having first and second major surfaces and a texturized polymeric skin layer secured to the first major surface of the sorbent layer. The article has a stiffness of about 200 N/g.cm.sup.-2 or less. An article of this construction has excellent sorptive and non-slip properties, making it well suited for use on floors and other work surfaces. Wet kinetic coefficients of friction of 0.4 and greater can be demonstrated by the inventive articles. The article improves the safety of persons who need to stand, walk, or otherwise safely function on floors or other surfaces that are susceptible to wet conditions.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: March 31, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Thomas I. Insley
  • Patent number: 5716892
    Abstract: The glass cloth canvas of the present invention comprises a glass cloth having a mass of not less than 100 g/m.sup.2 and a thickness of not less than 0.10 mm and surface-coated with one or more resins selected from acrylic, urethane and melamine resins in an amount of 10 g/m.sup.2 or more.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: February 10, 1998
    Assignee: Unitika Glass Fiber Co., Ltd.
    Inventors: Kanemi Kasano, Terufumi Suda, Tadataka Higashi, Syunsei Harada
  • Patent number: 5676577
    Abstract: The present invention relates to a fibrous base material comprising fibrillated aramid fibers, cellulose fibers, and at least one type of filler material and a non-asbestos friction material produced therefrom by impregnating the fibrous base material with a phenolic or modified phenolic resin. The friction material exhibits good anti-shuddering properties and is especially useful in continuous slip clutch applications.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: October 14, 1997
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Robert Chi-Chiu Lam, Yih-Fang Chen
  • Patent number: 5656361
    Abstract: A wet wipe which includes a pattern bonded polypropylene nonwoven web adapted to provide a sustained controlled release to a surface of an aqueous alcoholic composition contained within the nonwoven web. The nonwoven web has a basis weight of from about 17 to about 100 grams per square meter and includes polypropylene meltblown fibers having diameters in a range of from about 0.01 to about 50 micrometers. The aqueous alcoholic composition contained within the polypropylene nonwoven web is present in a range of from about 300 to about 600 weight percent, based on a dry weight of the nonwoven web of 34 grams per square meter. The wet wipe provides a first release of the aqueous alcoholic composition in a range of from about 40 to about 70 weight percent, a second release in a range of from about 10 to about 25 weight percent, and a third release in a range of from about 5 to about 18 weight percent, of the composition originally present in the nonwoven web.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: August 12, 1997
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Clifford Marshall Vogt, Bernard Cohen, Clifford Jackson Ellis
  • Patent number: 5629079
    Abstract: The present invention provides a medical tape comprising a highly conformable and deformable nonwoven web coated with an adhesive. The non-adhesive side of the web may be heat bonded to many different polymeric film materials and is particularly useful with ostomy pouch films. The present invention also provides ostomy bags comprising an elastic, breathable nonwoven based medical tape.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: May 13, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Donald R. Battles, Eugene G. Joseph, Audrey S. Huang, John F. Reed, Scott M. Purrington
  • Patent number: 5616405
    Abstract: Disclosed is a prepreg which is suited for preparing honeycomb sandwich panels, by which the formation of pores in the interlayer zones in the cured composite can be reduced. The prepreg of the present invention comprises a resin composition including an epoxy resin, a curing agent and a solid rubber, and a woven fabric made of reinforcing fibers, the meshes of the woven fabric being crushed such that said prepreg has a cover factor K.sub.p of 97-99.9%. Also disclosed is a reinforcing fabric comprising warps and woofs which are multifilament yarns made of carbon fibers, the widths W (mm) and finenesses D (d:denier) of the warp and woof satisfying the equation of:W=k.multidot.(D/.rho.).sup.5/9(wherein k represents 3.5.times.10.sup.-2 -10.0.times.10.sup.-2 (mm.multidot.d.sup.-5/9) and .rho. represents specific gravity of said carbon fibers), the woven fabric having a cover factor K.sub.c of 90.0-99.8%.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: April 1, 1997
    Assignee: Toray Industries, Inc.
    Inventors: Hajime Kishi, Nobuyuki Odagiri, Tokuo Tazaki, Hideo Nagata, Takeshi Terashita, Akira Nishimura, Hiroyasu Kato
  • Patent number: 5605749
    Abstract: The present invention provides an topically appliable active agent impregnated nonwoven pad, and the pad is fabricated from a nonwoven web that contains crimped conjugate fibers of spunbond fibers or staple fibers, wherein the nonwoven web is characterized as having autogenous interfiber bonds at the crossover contact points of its fibers throughout the web. The invention additionally provides a method of cleaning or buffing a solid surface with the nonwoven web.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: February 25, 1997
    Assignee: Kimberly-Clark Corporation
    Inventors: Richard D. Pike, John W. Fowler
  • Patent number: 5599612
    Abstract: A prepreg precursor including a carbon fiber woven fabric having applied to the fabric between about 0.5 to about 10 wt % of a stabilizer material for stabilizing the structural form of the fabric. Prepregs can then be produced using the woven fabric. Undesired settlement of matrix resin from the surface of the woven fabric is thus prevented. Hence, compared with a prepreg prepared using conventional woven fabric, a prepreg prepared by using the woven fabric of the invention can hold its tackiness for a long time and can be used to produce a fiber reinforced composite material excellent in smoothness without being devoid of surface resin.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: February 4, 1997
    Assignee: Toray Industries, Inc.
    Inventors: Toshio Muraki, Masazumi Tokunou, Ryuji Sawaoka, Masahiko Hayashi, Toshiaki Higashi, Tokuo Tazaki