摘要:
The invention provides a water blocking tape for use in a variety of cable designs, such as power cable, data communications cable and telecommunications cable. A water blocking tape according to the invention includes layers of lightweight nonwoven fabric with one or more swellable water blocking compounds, such as water absorbent polymers, disposed between the layers. The nonwoven fabric layers are bonded in a pattern using an ultrasonic bonding technique. The bonding pattern helps to contain and to restrain movement of the water blocking compounds between the layers. The bonding pattern compartmentalizes the water blocking compounds to prevent pooling of the compounds and to facilitate a substantially consistent distribution of the compounds between the layers such that when a tape contacts water, the tape achieves a substantially consistent swell height. A substantially consistent swell height permits a tape to serve as a reliable water barrier to prevent damage and degradation of a cable and its components. Ultrasonic bonding of the multilayer tape eliminates the need and use of adhesives and bonding agents to form the tape that can have inhibiting effects on a swelling action of the tape.
摘要:
A composition for treating fabric includes about 0.1 to about 10.0 % cross linking agent, about 0.1 to about 5.0 % polyolefin, about 0.1 to about 0.5 % wetting agent, about 0.0 to about 8.0 % aminofunctional silicone, about 0.0 to about 6.0 % ionizing agent, about 0.0 to about 2.0 % catalyst and any remainder as a carrier. The composition has a pH of between about 2.0 to about 4.0 and at least some aminofunctional silicone and/or ionizing agent is provided.
摘要:
An abrasive cloth which comprises an article in a sheet form having, in at least a part thereof, nanofibers comprising a thermoplastic polymer and having a number average single fiber fineness of 1 x 10 -8 to 2 x 10 -4 dtex wherein the sum of single fiber fineness percentages (which is defined in the specification) of a single fiber fineness of 1 x 10 -8 to 2 x 10 -4 dtex is the range of 60 % or more, and exhibits a stress at 10 % elongation in a longitudinal direction of 5 to 200 N/cm-width; and a method for preparing a nanofiber structure, which comprises providing a nanofiber dispersion having a dispersant and, dispersed therein, nanofibers comprising a thermoplastic polymer and having a number average diameter of 1 to 500 nm, attaching the dispersion to a support, and then removing said dispersant. The above abrasive cloth is excellent in texturing characteristics, and the above method allows the preparation of a nanofiber structure wherein nanofibers form a composite with the support.
摘要:
This invention relates to a thin reinforced nonwoven fabric for fire blocking an article, articles containing such fabrics, and methods for making the fabrics and fire blocking the articles. When exposed to heat or flame, the fabric is capable of increasing its thickness by at least three times. The fabric comprises an open mesh scrim having a having crimped, heat-resistant organic fibers compressed thereon and held in a compressed state by a thermoplastic binder. When subjected to high heat or flame, the binder in the structure softens and flows, releasing the restrained crimped fibers and allowing the thickness of the fabric to increase dramatically.
摘要:
Maleinized imide polymer resins, optionally in solution and optionally comprising metallic salt of α,β-ethylenically unsaturated carboxylic acid, the polymer being selected from the group consisting of butadiene homopolymer, butadiene copolymers, isoprene homopolymer, isoprene copolymers, and poly(maleic anhydride-co-alkenyl benzenes), are used to treat fabric and thereby improve fabric to rubber adhesion. Treated fabric and fabric-rubber composites and specific uses are also disclosed.
摘要:
The invention relates to a method and a device for producing individual pieces of the airbag of an airbag system, consisting of a fabric that is coated with silicon. According to said method, the contours of the individual pieces to be produced are successively cut in a cutting station from a fabric web. Said individual pieces are selectively coated in a coating station (8), in a step of a screen printing method and the coated individual pieces are then subjected to a thermal treatment in a heating station in order to be cross-linked. The advantage of said method in comparison to prior art is that there is less wastage of the relatively expensive silicon and that the waste products are more uniform and easier to treat in waste disposal terms, as they consist only of uncoated fabric.
摘要:
A method for producing a reinforced polyester non-woven material suitable for use as a roofing material, comprising: forming a mixture comprising glass fibers and a liquid binder; applying the mixture to a polyester non-woven material; and curing the liquid binder to form a layer comprising glass fibers that is attached to the polyester non-woven material.
摘要:
The invention relates to flat textile structures with self-cleaning and water-repellent surfaces that are composed of A) at least one synthetic and/or natural textile base material and B) one artificial, at least partially hydrophobic surface with elevations and depressions from particles that are firmly linked with the base material A without glues, resins or lacquers. The flat textile structures are obtained by treating the base material A with at least one solvent that contains the particles in an undissolved state, and removing the solvent, whereby at least a part of the particles are firmly linked with the surface of the base material A.
摘要:
Provided is a liquid silicone rubber coating agent composition, including:
(A) an organopolysiloxane containing at least two silicon atom-bonded alkenyl groups within each molecule, (B) an organohydrogenpolysiloxane containing at least two silicon atom-bonded hydrogen atoms within each molecule, (C) an addition reaction catalyst, (D) a gelled silica with a BET specific surface area within a range from 260 to 500 m 2 /g and an average particle size within a range from 0.5 to 20 µ m, and (E) an adhesion improver. Also provided is an air bag with a rubber coating layer including a cured product of the above composition. The liquid silicone rubber coating agent composition yields a cured product with excellent properties of adhesion to fiber, rubber strength, and blocking resistance.