Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7357819 | Fuel blends There is provided a diesel fuel blend comprising one or more commercially available diesel fuels; ethanol and a coupling agent. ... | 04/15/2008 |
| 7189295 | Yarn with heat-activated binder material and process of making Yarn suitable for tufting comprises a base fiber ring spun or wrap spun with a second fiber at least partially comprising a heat-activated adhesive material such that the yarn includes from 0.1 to 12, preferably 0.25 to 10, weight percent adhesive material having a ... | 03/13/2007 |
| 7168232 | Fiber reinforcement material, products made thereform, and method for making the same The present invention provides a synthetic fiber and methods for its use and formation. The present invention may comprise a fiber component that is a twisted bundle comprised of multiple strands of a nonfibrillating monofilament, the degree of twist being greater t... | 01/30/2007 |
| 7081299 | Polypropylene fibers and fabrics The present invention is a meltblown fiber and a fabric manufactured from the fiber comprising reactor grade polypropylene having a melt flow rate of from 100 to 5000 and having less than 50 stereo defects per 1000 units. Further, the polypropylene is typically prod... | 07/25/2006 |
| 6969437 | Yarn with heat-activated binder material and process of making Yarn suitable for tufting comprises a base fiber ring spun or wrap spun with a second fiber at least partially comprising a heat-activated adhesive material such that the yarn includes from 0.1 to 12, preferably 0.25 to 10, weight percent adhesive material having a ... | 11/29/2005 |
| 6399194 | Polypropylene terephthalate twisted yarn and method for producing the same The present invention offers polypropylene terephthalate textured yarn which has little dyeing unevenness or fibrillation, and is outstanding in its product quality, by carrying out texturing at the same time as drawing under specified conditions using po... | 06/04/2002 |
| 6349532 | Method and apparatus for producing textile yarn, and yarn produced thereby A method and apparatus for producing a combined textile yarn comprising two yarn components that are false twisted to different twist levels and then combined to form a combined textile yarn. The yarn components may be twisted in the same or opposing dire... | 02/26/2002 |
| 6335093 | Composite crimped yarn Composite crimped yarn comprising 50-90 wt. % of cellulose filaments and synthetic fiber filaments and having a crimp elongation percentage of 0.1-4.0%; and a weft knitted fabric comprising the composite crimped yarns. A weft knitted fabric comprising the... | 01/01/2002 |
| 6276121 | Crimped yarn, textile fabric, and process for preparing the same Crimped yarns that comprise a conjugate multifilament yarn having unique surface texture, dry touch, and stretchability; woven/knitted products comprising said crimped yarn; and production methods of crimped yarn as a conjugate multifilament yarn comprisi... | 08/21/2001 |
| 6074751 | Composite textured yarn, a process for its production, woven or knitted fabrics made thereof, and an apparatus for producing it A composite textured yarn contains a component yarn A and a component yarn B each false twisted and crimped. The component yarn B is shorter in yarn length or larger in shrinkage at least after heat treatment. Single fibers of component B have thick porti... | 06/13/2000 |
| 5930989 | False twisted yarn A false twisted yarn is made from a lyocell multifilament yarn having a crimp shape coefficient defined by CE/N of 0.02-0.20, wherein CE is a crimp extension (%) and N is the number of crimps; a crimp extension of 0.7-7%; and a degree of swelling in water... | 08/03/1999 |
| 5725949 | Hollow-fiber bundle and mass-transfer and/or heat exchanger A hollow-fiber bundle containing at least one core bundle, where the core bundle contains at least three hollow fibers which are arranged around a carrier thread, with at least one winding thread wound around them, where the cross-sectional form of the ca... | 03/10/1998 |
| 5662980 | Carpets made from poly(trimethylene terephthalate) bulked continuous filaments Polyester carpets of poly(trimethylene terephthalate) are disclosed which have excellent stain-resistance, texture retention and resistance to crushing. The bulked continuous filament yarn used to make the carpets and the process for making the yarns are ... | 09/02/1997 |
| 5644906 | Hot feed draw texturing for dark dyeing polyester A method is disclosed for increasing the dyeability of polyester yarn and comprises heating the partially oriented yarn to a temperature between its crystallization temperature and its melting point while preventing the partially oriented yarn from shrink... | 07/08/1997 |
| 5593777 | Two-component loop yarns, production thereof and use thereof as sewing and embroidery yarns Two-component loop yarns composed of core and effect filaments are made of synthetic polymers and comprise the following features. At least some of the effect filaments are made of polyester, and at least some of the effect filaments have a breaking exten... | 01/14/1997 |
| 5585182 | Process for polyester fine hollow filaments A post-coalescence melt-spinning process for preparing fine undrawn hollow polyester filaments having excellent mechanical quality and uniformity at high speeds (2-5 km/min) involving selection of polymer viscosity and spinning conditions, whereby the voi... | 12/17/1996 |
| 5579629 | Method of producing a friction texturized polyester filament yarn and yarn made thereby The friction texturized polyester filament yarn has a titer of 400 to 600 dtex and a crimpability of at least 45% and can be provided with at least 60 slubs/m. The method of making this friction texturized polyester filament yarn comprises texturizing a f... | 12/03/1996 |
| 5579628 | Entangled high strength yarn 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.... | 12/03/1996 |
| 5532060 | Continuous hollow filaments, yarns, and tows Hollow polyester undrawn filaments having excellent mechanical quality and uniformity are prepared by a simplified post-coalescence melt spinning process at speeds of e.g. 2-5 km/min by selection of polymer and spinning conditions whereby the void content... | 07/02/1996 |
| 5492758 | Fiber blend for carpet yarns and watermarking resistant carpet formed therefrom The present invention is directed to a fiber blend useful in the manufacture of carpet yarn used for pile in carpet construction. The blend includes, by weight based on the weight of the total blend, about 40% to about 70% normally crimped fibers, about 5... | 02/20/1996 |
| 5462790 | Combined and multi-component false-twist textured filament yarn, production method thereof, and knitted/woven fabric using the yarn In a polyester multi-filament yarn consisting of at least two kinds of false twisted filament yarns having different sectional shapes, the present invention relates to a combined and multi-component false twisted filament yarn which comprises at least one... | 10/31/1995 |
| 5429868 | Yarn, especially sewing yarn, and method of producing same A yarn, especially a sewing yarn, comprises at least two multifile yarn components. The first yarn component forms mainly the core of the yarn and the second yarn component forms mainly the jacket of the yarn. The two yarn components are intermingled with... | 07/04/1995 |
| 5344710 | Low-denier two-component loop yarns of high strength, production thereof and use thereof as sewing and embroidery yarns There are described two-component loop yarns composed of core and effect filaments made of synthetic polymers, having a final tenacity of at least 30 cN/tex and a final linear density of less than 200 dtex and wherein the core and effect filaments each ha... | 09/06/1994 |
| 5342677 | Composites with polyether ketone yarn There are described composites containing as the matrix a polymeric organic compound and as the reinforcing material polyether ketone (PEK) single, folded or cabled yarn or fabric formed from such single, folded or cabled yarn. In the composites of the in... | 08/30/1994 |
| 5313776 | Process for manufacturing an elastic bulk yarn A friction-textured elastic yarn is prepared by twisting a single-component multifilament melt-spinnable polymer yarn having an initial modulus of 80 to 150 cN/tex and a melting point of at least 200° C. at a speed of at least 200 m/min, the thus twisted... | 05/24/1994 |
| 5175038 | Carpet yarns and carpets with improved balance of newness retention and bulk Bulked continuous filament carpet yarns having high levels of bulk are disclosed. When ply-twisted together at unusually high twist levels and tufted into carpets, such yarns produce cut-pile carpets having a superior balance of carpet bulk and newness re... | 12/29/1992 |
| 5100729 | Two-component loop sewing yarn and manufacture thereof Two-component loop sewing yarn composed of core and effect filaments of high tenacity and low shrinkage made of synthetic polymers, having an ultimate tenacity of above 40 cN/tex, a thermoshrinkage at 180° C. of below 8% and an ultimate tensile strength ... | 03/31/1992 |
| 4965919 | Potential bulky polyester associated bundles for woven or knitted fabric and process for production thereof Potential bulky polyester associated bundles or yarns for woven or knitted fabric include spontaneously heat extensible multi-filament A and heat shrinkable multi-filament B. The associated bundles are interlaced at 20-100 interlaces/m. For multi-filament... | 10/30/1990 |
| 4955189 | Worsted yarn-like false-twisted yarn Disclosed is a worsted yarn-like false-twisted yarn composed of large-denier multifilaments having a thickness of at least 4 de and small-denier multifilaments having a thickness of 0.7 to 2 de, which comprises (a) alternately twisted yarn-like wrapped po... | 09/11/1990 |
| 4897990 | Highly shrinkable substantially acrylic filament yarn A highly shrinkable acrylic filament yarn which exhibits a degree of shrinking of at least 20% in boiling water, a maximum heat shrinking stress of at least 0.15 g/d in a dry heating atmosphere, and a Young's modulus of at least 280 Kg/mm2 afte... | 02/06/1990 |
| 4870813 | Ply-twist heat set carpet yarns A ply-twisted crimped continuous filament yarn having at least 40 twist reversals per meter and particularly suited for freize style carpets and the process for making the yarn is disclosed.... | 10/03/1989 |
| 4845934 | False twisted bulky multifilament yarn, method of making and end use of this yarn A false twisted bulky synthetic multifilament yarn of a uniform polymer consisting of at least two filament bundles of different filament deniers, with the filaments in each of said bundles having the same denier per filament. The smaller denier per filam... | 07/11/1989 |
| 4712366 | Denier-mixed composite yarn, denier-mixed special thick and thin yarn, false twist yarn and denier-mixed shrinkage-mixed composite yarn The present invention relates to a denier-mixed composite yarn containing 20 weight percent or more coarse filaments whose single filament fineness is 3 deniers or more and 5 weight percent or more fine filaments whose single filament fineness is 1.5 deni... | 12/15/1987 |
| 4704856 | False twisted differential tension yarn A continuous multifilament crimped polyamide or polypropylene yarn suitable for use in loop pile carpeting and the process for making the yarn including feeding the yarn at different tensions and then treating the yarn with saturated steam is disclosed.... | 11/10/1987 |
| 4682465 | False-twist textured yarn of polyamide A false-twist textured yarn composed of a polyamide filament yarn excellent in stretchability and heat durability suitable for sports wear is proposed, which is characterized in that the maximum value F (g) of a shrinkage force under dry heat and a heat t... | 07/28/1987 |
| 4656825 | Sewing thread and method for manufacturing the same A method for manufacturing a sewing thread comprising the following steps: drawing an undrawn polyester multifilament yarn; preliminarily heat treating the drawn yarn at an effective heat treating temperature before false twisting; then, false twisting the heat tre... | 04/14/1987 |
| 4638624 | False twist crimped yarn having improved coherency The present invention provides a false twist crimped yarn having an improved coherent structure which is produced by the specific mode of processing realized by defining the processing conditions of false twist crimping system. Here the unitary effect gen... | 01/27/1987 |
| 4634625 | New fabrics, yarns and process Scalloped-oval cross-section for low denier filaments of partially-oriented polyester for new draw-texturing feed yarn, and a new process of draw-texturing to prepare corresponding polyester textured yarns for use in combination spun yarn/textured polyest... | 01/06/1987 |
| 4578940 | Method for manufacturing sewing thread A method for manufacturing a sewing thread comprising the following steps: drawing an undrawn polyester multifilament yarn; preliminarily heat treating the drawn yarn at an effective heat treating temperature before false twisting; then, false twisting the heat tre... | 04/01/1986 |
| 4574578 | Synthetic yarn and yarn-like structures and a method for their production Synthetic yarn and yarn-like structures are formed by the method of treating separate multifilament strands of thermoplastics material so that at least one has a shrinkage ratio higher than normal at an elevated temperature. The strands are intermingled i... | 03/11/1986 |
