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7585443 |
Pelletized brominated anionic styrenic polymers and their preparation and use
Despite the frangibility of additive-free granules of brominated anionic styrenic polymer, it has been found possible by use of special mechanical processing to provide pellets of unadulterated...
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7550203 |
Compartmentalized resin pellets
This invention discloses a process and a necessary article to simultaneously thermally treat at least two thermoplastics. The process utilizes the necessary compartmentalized or zoned pellet...
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7541091 |
Compartmentalized resin pellets for oxygen scavenging
Disclosed is a process and article to simultaneously thermally treat at least two thermoplastics when one of the thermoplastics is an oxygen inert material and the other is an oxygen sensitive...
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7527841 |
Method for dissolving PPTA in sulfuric acid using a twin screw extruder
Described is a method for dissolving PPTA or copolymers thereof in sulfuric acid using a twin screw extruder having transporting, mixing, and kneading elements with an entering zone, an...
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7425290 |
Granular polymer additives and their preparation
A compacted particulate polymer additive composition in a dry granular form formed from a substantially uniform mixture of the following components:
(a) at least one particulate...
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7393201 |
System and apparatus for manufacturing thermoplastic micropellets
A highly efficient pelletizing system for making thermoplastic micropellets includes and extruder for extruding molten thermoplastic into thermoplastic strands. A rotor cuts the strands into...
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7317072 |
Process for the production of polyarylene sulfide resins
The present invention is a process for the production of polyarylene sulfide based resin, wherein in washing a polyarylene sulfide based resin with a mixed solvent of an aprotic organic solvent and...
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7204945 |
Direct coupling of melt polymerization and solid state processing for PET
Strands of molten polyethylene terephthalate (PET) from a PET polycondensation reactor are solidified, pelletized, and cooled only to a temperature in the range of 50° C. to a temperature near the...
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7157032 |
Method and apparatus for making crystalline PET pellets
A method and apparatus for underwater pelletizing and subsequent drying of polyethylene terephthalate (PET) polymers and other high temperature crystallizing polymeric materials to crystallize the...
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6967057 |
Poly(trimethylene dicarboxylate) fibers, their manufacture and use
A process for preparing poly(trimethylene terephthalate) fibers including (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 10 weight % ionomer and (b)...
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6923925 |
Process of making poly (trimethylene dicarboxylate) fibers
A process for preparing poly(trimethylene dicarboxylate) multifilament yarns and monofilaments. One process for preparing poly(trimethylene dicarboxylate) multifilament yarns includes (a) providing...
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6896752 |
Method for producing compacted free-flowing raw materials for varnish
A process for producing compacted free-flowing nitrocellulose based lacquer raw materials is described. The process involves pressing a nitrocellulose based lacquer feed material, which is...
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6872352 |
Process of making web or fiberfill from polytrimethylene terephthalate staple fibers
The invention relates to webs or batts including polytrimethylene terephthalate crimped staple fibers and fiberfill products comprising such webs and batts, as well as the processes of making the...
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6852256 |
Process for upgrading plastic material
In a process for upgrading cleaned used plastic material to be reclaimed, all steps are performed in a continuous way so as to extrude continuously the plastic material to provide elongated strands...
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6835339 |
Process for preparing poly(trimethylene terephthalate) tetrachannel cross-section staple fiber
Poly(trimethylene terephthalate) tetrachannel cross-section staple fibers, as well as yarns, fiberfill webs, batts and products, and fabrics made therewith. Also, the process of making such staple...
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6824717 |
Method for melt spinning filament yarns
A method of melt spinning a group of multifilament yarns ( 1 ) from a polymer melt, wherein each group of yarns ( 10 ) is formed from a plurality of filaments ( 4 ) that are extruded through a...
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6805822 |
Method for producing thermoplastic elastomer powder
A method for producing powder of a thermoplastic elastomer having a sphere-reduced average particle diameter of 700 μm or less by an under water cut method which comprises discharging the...
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6783710 |
Method for the production of expandable plastics granulate
Apparatus and method for the production of expandable plastics granulate (C). A plastics melt (A′) is impregnated by a fluid blowing agent (B), which is, at an elevated pressure within a...
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6780357 |
Splittable multicomponent polyester fibers
Mechanically divisible multicomponent fibers have at least a component including poly(lactic acid) polymer and at least a second component including at aromatic polyester. The multicomponent fibers...
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6752943 |
Apparatus and process for granulating dry powder materials
Uniformly sized granules are formed using the present extruder and granulation process. The extruder contains a spiral worm screw for guiding a granulation material to an apertured plate. The...
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6752945 |
Process for making poly(trimethylene terephthalate) staple fibers
A process of making polytrimethylene terephthalate staple fibers, including (a) providing polytrimethylene terephthalate, (b) melt spinning the melted polytrimethylene terephthalate at a...
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6737004 |
Process of making splittable microfiber substrate
A microfiber substrate of improved carding ability and its manufacturing method, and more particularly a micro-fiber spun by conjugated melting of crystallization difference of high crystallization...
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6733709 |
Methods and apparatus for producing granular compositions
Methods for producing granular compositions comprise the steps of preparing a viscous liquid mixture, forming a plurality of ligaments from the viscous liquid mixture, cutting the ligaments with...
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6632525 |
Material and method for manufacturing plastic parts
A plastic particle is formed of a plastic material having at least one integral protruding ring disposed on its outer surface. The ring may be continuous or intermittent around a perimeter of the...
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6627129 |
Process of making high RV polyamide filaments
The present invention relates to industrial high relative viscosity (RV) filaments, such as, for use in papermaking machine felts and other staple fiber applications. The invention is further...
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6620507 |
Fiber-reinforced thermoplastic resin pellets and manufacturing method thereof
Disclosed is fiber-reinforced thermoplastic resin pellets that satisfy the quality stability (homogeneous impregnation, deterioration prevention of reinforcing fiber) of the molding material and...
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6610233 |
Saponified ethylene-vinyl acetate copolymer pellets and method for their production
The invention provides pellets of a saponified ethylene-vinyl acetate copolymer which are excellent in feedability, cause little fluctuation of extruder torque or discharge during molding, and...
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6579965 |
Process for the anionic polymerization of lactams
For the anionic polymerization of lactams: (a) (i) a catalyst capable of creating a lactamate and (ii) a regulator chosen from amides of formula R1-NH—CO-R2, in which R1 can be substituted by an...
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6544447 |
Method of paper sludge and plastics formulation
This invention generally relates to the formulation of thermoplastic pellets from a combination of raw sludge material from a paper mill with thermoplastic material from post industrial or consumer...
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6537473 |
Process of making polyolefin fibers
Polyolefin fibers and polyolefin yarns of high strength and elongation and textile fabrics produced therefrom, which consist of modified propylene polymers, unmodified propylene polymers and...
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6495080 |
Methods for making water-sensitive compositions for improved processability and fibers including same
The present invention is directed to thermoformable ion-sensitive compositions having improved processability. In addition, the present invention is directed to a process of making...
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6491853 |
Storage-stable plastics additives
The present application relates to storage-stable plastics additives which are prepared by cooling a mixture of 99.9 to 10% by weight of molten additive material and 0.1 to 90% by weight of...
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6479001 |
Methods for making a thermoplastic composition including polyethlene oxide and fibers including same
A thermoplastic composition that includes an unreacted mixture of a polyethylene oxide polymer, a polyolefin polymer, an aliphatic polyester polymer, and, optionally, a compatibilizer for the...
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6475418 |
Methods for making a thermoplastic composition and fibers including same
A disposable article including a biodegradable nonwoven material having improved fluid management properties. The nonwoven material may be produced using thermoplastic compositions which comprise...
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6451236 |
Method of making photochromic thermoplastics
A method of making photochromic thermoplastic wherein the material is extruded into a length or lengths having at least one relatively small cross-sectional dimension. The length or lengths are...
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6436323 |
Production of fibre
Staple fiber is produced by extruding a solution of a polymer through a spinneret to form continuous filaments, gathering the continuous filaments to form a tow and continuously cutting the...
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6428298 |
Apparatus for pelletizing strands of polymer
An apparatus for pelletizing strands of polymer emerging in molten form from dies with a pelletizer, in which apparatus a cooling section carrying a coolant flow and a dewatering section are...
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6426026 |
Process for pelletizing ultra-high melt flow polymers
Disclosed is a process for pelletizing high melt flow crystalline polymers to produce crystalline pellet products. The process includes feeding a polyolefin granular or pelleted polymer into a...
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6419864 |
Method of preparing filled, modified and fiber reinforced thermoplastics and twin screw extruder for putting the method into practice
A method of preparing filled, modified and fiber reinforced thermoplastics is distinguished by the fact that polymer as matrix material together with blend polymer is fed to a twin screw extruder...
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6410141 |
Material and process for manufacturing plastic parts
Spherical particles having a diameter between 0.007″ and 0.040″ are formed from melt extruded thermo-plastic material suitable for casting on a heated mold surface and melting thereon to form a...
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6391239 |
Methods of making multiphase elongate polymeric extrudates by directing additives into a cross-sectional location thereof
This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die...
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6337138 |
Cellulosic, inorganic-filled plastic composite
The present invention is a cellulosic, inorganic-filled plastic composite. The composite includes about 30% to about 70% by weight of the composite of cellulosic material, about 1% to about 20% by...
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6332993 |
Process of making heat-retaining fibers
A method for making heat-retaining fiber and fabrics. According to the present invention, the white conductive particles and the white particles with good radiating efficiency of far-infrared...
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6315931 |
Method of producing a foamed granulate
A method for producing a foamed granulate, wherein a thermoplastic synthetic material is placed in an extruder, the synthetic material is melted, a pressurized expanding agent is fed through one or...
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6251321 |
Process of making a homogeneous floor covering
A homogeneous floor covering composed of elastomer, varicolored granular particles contains 3 to 20 per cent by weight of a copolymer of ethylene, including at least one comonomer of vinyl esters...
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6241168 |
Recycling of carpet scrap and compositions employing ultralow density polyethylene (ULDPE)
Carpet scrap containing mixtures of polyesters and/or polyamides and polyolefins are compatiblized with ultralow density polyethylene (ULDPE) to make homogeneous thermoplastic blends having useful...
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6238606 |
Process for preparing pellets of saponified ethylene/vinyl acetate copolymer
In the method of continuously producing pellets by continuously extruding a saponified ethylene-vinyl acetate (EVOH) solution in a strand form into a coagulation liquid and then cutting the...
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6217804 |
Painted plastic material recycling process
In a recycling process, granulated plastic material coated with a paint film is melted in an extruder. During extrusion, the paint film is volatilized and removed by vacuum from the melted...
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6183679 |
Production process for injection-molded product of polyglycolic acid
The invention provides an injection-molded product of polyglycolic acid obtainable by molding a thermoplastic resin material at an injection temperature ranging from the melting point, Tm of the...
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6177191 |
Internally lubricated fiber, cardable hydrophobic staple fibers therefrom, and methods of making and using the same
Hydrophobic polyolefin fibers are provided with an internal hydrophobic polysiloxane of the formula ##STR1## in which X, Y, R 1 , and R 2 , which may be the same or different, or substituted or...
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