Basf Corporation

Honeywell International Inc.

Other

Basf Aktiengesellschaft

Otto M Ilg

Matthew B Hoyt

John A Hodan

Charles F Helms, Jr

Diane R Kent

Randall A Sferrazza

Dominick A Burlone

Harry Y Hu

Richard Kotek

Thomas F Corbin

Robert N Armstrong

Carol W Morgan

Morris K Queen

Ronald G Morrow

Fang A Wang

Terry D Roberts

Jeffrey S Dugan

Scott R Brank

Heinz Berbner

Hans D Zettler

Karl Ott

Donald Barry Thompson

George M Kent

Theodore G Karageorgiou

Carl R Holzer, Jr

Melvin R Thompson

Gary W Hanwell

David L Caldwell

Gernot Herbst

Thomas M Toney

Manfred Juluis

John M Temples

Larry D Blackston

Philip T Earley

Jewell D Purvis

Jerry M Walker

Freddie L Banks

Charles E Eatmon

Eugene Carnes

James A Hucks

James F Coker

John E Emery, Ii

David M Pendley

Dennis W Pomeroy

Richard Arnold

Billy K Osborne

William Theuer

A method of making thermoformable articles is disclosed. The method includes mixing one or more light-stabilized polymers having a high concentration of light-stabilizing moieties covalently bonded along the polymer chain with one or more additional polymeric materials, which are substantially free from light-stabilizing moieties.

Light-stabilized polymeric articles and methods of making the same

A method of making a polymer is disclosed. The method includes the following steps: packaging a polymer precursor composition in a sealable container; transferring the polymer precursor composition from the sealable container to a reaction vessel; and polymerizing the polymer precursor composition. A method of making a thermoformable article from a pre-packaged polymer precursor composition is also disclosed. Further, a method of doing business, which includes the step of offering for sale a sealable container containing a polymer precursor composition, is disclosed. In addition, articles of manufacture are disclosed. One article includes a sealable container containing a polymer precursor composition.

Method of making a polymer from a polymer precursor composition

BCF yarn is melt-spun, drawn and textured to provide morphologically stable BCF yarns. The yarn texturizing includes a relatively low efficiency fluid jet texturizer, that is a fluid jet texturizer operating at a sufficiently low fluid jet velocity and a sufficiently high fluid jet temperature to obtain a yarn skein shrinkage of less than about 0.50 inch, more preferably about 0.25 inch or less. Most preferably, the BCE yarns are formed of nylon-6 and exhibit an alpha-crystalline content of less than about 45%, and usually between about 45% to about 55%.

Methods for making morphologically stable bulked continuous filaments

Morphologically stable BCF yarns, and the methods and systems for making such BCF yarns are provided. More specifically, the BCF yarn is melt-spun, drawn and textured. The yarn texturizing includes a relatively low efficiency fluid jet texturizer, that is a fluid jet texturizer operating at a sufficiently low fluid jet velocity and a sufficiently high fluid jet temperature to obtain a yarn skein shrinkage of less than about 0.50 inch, more preferably about 0.25 inch or less. Most preferably, the BCF yarns are formed of nylon-6 and exhibit an alpha-crystalline content of less than about 45%, and usually between about 45% to about 55%.

Morphologically stable bulked continuous filaments and methods and systems for making the same

Continuous anionic polymerization and melt-spinning of a polycaprolactam includes forming a reaction mixture by bringing at least two streams of liquid caprolactam respectively containing a polymerization initiator and co-initiator into contact with one another, and then subjecting the reaction mixture to anionic polymerization reaction conditions in the reactor zone to obtain a molten polycaprolactam. The molten polycaprolactam is the directly (i.e., without intermediate solidification) transferred to, and extruded through, a fiber-forming orifice of a spinneret to form a fiber thereof. A spinneret zone downstream of the reactor zone thus receives the molten polycaprolactam directly from the reactor zone and forms a fiber therefrom by extruding it through the spinneret's fiber-spinning orifice.

Continuous polymerization and direct fiber spinning and systems for accomplishing same

Continuous anionic polymerization and melt-spinning of a polycaprolactam includes forming a reaction mixture by bringing at least two streams of liquid caprolactam respectively containing a polymerization initiator and co-initiator into contact with one another, and then subjecting the reaction mixture to anionic polymerization reaction conditions to obtain a molten polycaprolactam. The molten polycaprolactam is the directly (i.e., without intermediate solidification) transferred to, and extruded through, a fiber-forming orifice of a spinneret to form a fiber thereof. One exemplary system to achieve such continuous anionic polymerization and melt-spinning of polycaprolactam includes a mixer for receiving and mixing at least two streams of liquid caprolactam respectively containing a polymerization initiator and co-initiator, and a reactor and melt-spinning apparatus downstream of the mixer. The reactor and melt-spinning apparatus most preferably is formed of multiple plates which establish a reactor zone having a flow path for the reaction mixture which is sized and configured to achieve a predetermined residence time of the reaction mixture therein, and a temperature control zone in thermal communication with the reactor plate for controlling the temperature of the reaction plate to achieve anionic polymerization reaction conditions while the reaction mixture is flowing along the defined flow path therein to obtain the molten polycaprolactam. A spinneret zone downstream of the reactor zone thus receives the molten polycaprolactam directly and forms a fiber therefrom by extruding it through the spinneret's fiber-spinning orifice.

The end group content of polyamide in the solid state may be reduced by treating the polyamide with gas-phase acid, anhydride, or amine. Stain- or dye-resistant polyamide fibers can be made by reducing the number of amino end groups. Reduction in the number of carboxylic end groups reduces the rate of regeneration of starting monomers during extrusion.

Treatment of polyamide with gas phase of acid, anhydride or amine

Continuous polymerization and direct fiber spinning and apparatus for accomplishing same

A process for manufacturing substantially 100% nylon 6 carpet provides a nylon 6 face yarn to a nylon 6 support means so that the yarn and the support means form a carpet having a face side which is displayed when the carpet is installed and a back that binds the face yarn to the support means wherein said binding is with molten or dissolved nylon 6.

Recyclable carpet

Treatment of polyamide with gas phase of acid anhydride or amine

Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of fixed geometry so as to achieve a bicomponent fiber having a desired cross-section. In order to change to a bicomponent fiber having a cross-section which is different, therefore, at least one of (1) the differential relative viscosity, (2) the relative proportions of the first and/or second polymers, and (3) the cross-sectional bicomponent distribution of the first and second polymers, is changed. In such a manner, therefore, a wide variety of bicomponent fibers having different cross-sectional geometries may be produced without changing the fixed geometry orifice through which the polymers are co-melt-spun. Thus, bicomponent fiber cross-sections may be 'engineered' to suit a variety of needs without necessarily shutting down production equipment in order to change spinnerets. The bicomponent fibers are most preferably multilobal (e.g., trilobal) in which the core component is generally triangularly shaped.

Process for modifying synthetic bicomponent fiber cross-sections

An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded to the backbone polymer chain. The inherently light- and heat-stabilized polyamide may be used to form articles such as, for example, fibers, carpets, yarns, and textile fabrics.

Inherently light-and-heat-stabilized polyamide and method of making the

Novel bicomponent fibers have a polyamide domain and a contaminant-containing polymer domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The preferred bicomponent fibers have a sheath-core structure wherein the polyamide domain constitutes the sheath and the contaminant-containing polymer constitutes the core. Surprisingly, even though the core is formed of a contaminant-containing polymer (which is difficultly spinnable), the bicomponent fibers are readily spinnable and exhibit properties which are comparable in many respects to fibers formed from 100% polyamide. Preferably, the fibers are concentric sheath-core bicomponent fibers having an uncontaminated nylon-6 sheath and a core formed from nylon-6 having a relatively high level of contamination in the form of the cyclic dimer of caprolactam and/or nylon-6 derived from colored regenerated post-consumer nylon carpet fibers.

Process of making a bicomponent fiber

Bicomponent fibers having contaminant-containing core domain and methods

Process for modifying synthetic bicomponent fiber cross-sections and

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Asheville, NC, United States of America

Otto M Ilg