Abstract:
PROBLEM TO BE SOLVED: To provide a reversed, heat-set elastic fiber. SOLUTION: A covered fiber comprising: A. a core comprising an elastic fiber comprising a substantially crosslinked, temperature-stable, olefin polymer, and B. a cover comprising an inelastic fiber. The fiber is heat set by a method comprising: (a) stretching the covered fiber by applying a stretching force to the stretched fiber; (b) heating the stretched covered fiber of (a) to a temperature in excess of the crystalline melting point of the olefin polymer for a period of time sufficient to at least partially melt the olefin polymer; (c) cooling the stretched and heated covered fiber of (b) to a temperature below the crystalline melting point of the olefin polymer for a period of time sufficient to solidify the polymer; and (d) removing the stretching force from the covered fiber. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a reversed heat-set elastic fiber. SOLUTION: A covered fiber includes (A) a core containing an elastic fiber comprising a substantially crosslinked and temperature-stable olefin polymer and (B) a cover containing an inelastic fiber. The fiber is heat-set by a method comprising (a) stretching the covered fiber by applying a stretching force to the covered fiber, (b) heating the stretched covered fiber of (a) to a temperature in excess of the crystalline melting point of the olefin polymer for a period of time sufficient to at least partially melt the olefin polymer, (c) cooling the stretched and heated covered fiber of (b) to a temperature below the crystalline melting point of the olefin polymer for a period of time sufficient to solidify the polymer and (d) removing the stretching force from the covered fiber. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
A fiber is obtainable from or comprises a propylene/a-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re >1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non- woven fabrics can be made from such fibers.
Abstract:
A fiber is obtainable from or comprises an ethylene/a-olefm interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and (1) cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re >1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.
Abstract:
The invention is an article comprising at least two layers, a low crystallinity layer and a high crystallinity layer. One or both layers is capable of being elongated so that a pre- stretched article is capable of being formed.
Abstract:
A window envelope that includes a window patch formed from a low gloss polymer film based upon a rubber-modified vinyl aromatic polymer or a blend of a rubber- modified vinyl aromatic polymer and a vinyl aromatic polymer. The film may be a monolayer film or an external layer of a multilayer film. The film optionally includes an inorganic coating applied to either surface of the film where the film is a monolayer film or to an outermost surface of the film where the film is an external layer of a multilayer film. When an inorganic coating is applied to a film surface, the film need not include a rubber- modified vinyl aromatic polymer and may be based solely upon a vinyl aromatic polymer.
Abstract:
Cushioning net structures comprise random loops, such as three-dimensional random loops, bonded with one another, wherein the loops are formed by allowing continuous fibers, made of ethylene/a-olefin interpolymers, to bend to come in contact with one another in a molten state and to be heat-bonded at most contact points. The structures provided herein have desirable heat resistance, durability and cushioning property. The cushioning structures are used in furniture, vehicle seats etc.
Abstract:
An oriented polymer composition containing thirty to 95 weight-percent inert inorganic filler and a continuous phase of at least one orientable polymer contains void spaces due to cavitation and has a density of less than 0.8 grams per cubic centimeter, a flexural modulus of 1.4 gigapascals or more, cross section dimensions all greater than 1.5 millimeters, a delamination force value of 44.5 Newtons (ten pounds force) or more and little or no blowing agent.
Abstract:
An electronic device module comprising: A. At least one electronic device, e.g., a solar cell, and B. A polymeric material in intimate contact with at least one surface of the electronic device, the polymeric material comprising (1) a polyolefin copolymer with at least one of (a) a density of less than about 0.90 g/cc, (b) a 2% secant modulus of less than about 150 megaPascal (mPa) as measured by ASTM D-882-02), (c) a melt point of less than about 95C, (d) an a-olefin content of at least about 15 and less than about 50 wt% based on the weight of the polymer, (e) a Tg of less than about -35C, and (f) a SCBDI of at least about 50, (2) optionally, free radical initiator, e.g., a peroxide or azo compound, or a photoinitiator, e.g., benzophenone, and (3) optionally, a co-agent. Typically, the polyolefin copolymer is an ethylene/a-olefin copolymer. Optionally, the polymeric material can further comprise a vinyl silane and/or a scorch inhibitor, and the copolymer can remain uncrosslinked or be crosslinked.
Abstract:
A fiber is obtainable from or comprises an ethylene/a-olefm interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and (1) cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re >1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.