Alliedsignal Inc.

Allied Corporation

Other

Yash P Khanna

Annemarie C Reimschuessel

John P Sibilia

Mingliang Lawrence Tsai

Joseph E Mackey

Himangshu R Bhattacharjee

Rakesh Kumar

Georgette Chomyn

Tammy Lynn Smith

Asis Banerjie

Kevin R Slusarz

Shaul M Aharoni

Theodore Largman

Jon I Williams

Anthony J Signorelli

Julie R Schollmeyer

Edith A Turi

Divarakaran Masilamani

William P Kuhn

John J Belles, Jr

Dean A Roberts

Martin J Schena

Mina K Gabriel

Frank H Puterbuagh, Jr

Kristina A Miller

The present invention provides highly oriented multilayer films. They are produced by coextruding or laminating films having at least one layer of a fluoropolymer, at least one layer of a polyolefin homopolymer or copolymer and an intermediate adhesive layer of a polyolefin having at least one functional moiety of an unsaturated carboxylic acid or anhydride thereof. With this structure the polyolefin layer allows the fluoropolymer layer to be stretched up to ten times its original length. Such a high orientation ratio for the fluoropolymer film increases the mechanical strength, toughness, and water vapor barrier properties of the film while using a thinner gauge fluoropolymer film. Coextrusion processing can be done at higher temperatures, i.e. in the range of from at about 280&deg; C. to about 400&deg; C. These temperatures allow films to be produced in the absence of polymer degradation and film melt fracture.

Highly oriented fluoropolymer films

A method of producing highly oriented multilayer films comprising laminating films having at least one layer of a fluoropolymer, at least one layer of a polyolefin homopolymer or copolymer and an intermediate adhesive layer of a polyolefin having at least one functional moiety of an unsaturated carboxylic acid or anhydride thereof. With this structure the polyolefin layer allows the fluoropolymer layer to be stretched up to ten times its original length. Such a high orientation ratio for the fluoropolymer film increases the mechanical strength, toughness, and water vapor barrier properties of the film while using a thinner gauge fluoropolymer film.

Super-miscible blends of nylon copolymers are provided as well as multilayered film structures made therefrom. A nylon composition is a substantially uniform blend of at least one semi-crystalline copolymer I and at least one semi-crystalline copolymer II, wherein the proportion by weight of each of copolymer I and copolymer II. The nylon compositions are extremely uniform, and have only a single melting point rather than individual melting points of the component nylon copolymer parts. Coextruded films of a layer of this nylon composition with an olefin containing polymer are suitable for use as barrier films, such as aroma barrier films, which have reduced curl.

Nylon 6 or 66 based compositions and films formed therefrom having

A method of producing highly oriented multilayer films comprising coextruding films having at least one layer of a fluoropolymer, at least one layer of a polyolefin homopolymer or copolymer and an intermediate adhesive layer of a polyolefin having at least one functional moiety of an unsaturated carboxylic acid or anhydride thereof. With this structure the polyolefin layer allows the fluoropolymer layer to be stretched up to ten times its original length. Such a high orientation ratio for the fluoropolymer film increases the mechanical strength, toughness, and water vapor barrier properties of the film while using a thinner gauge fluoropolymer film. Coextrusion processing is done at higher temperatures, i.e. in the range of from at about 280.degree. C. to about 400.degree. C. These temperatures allow films to be produced in the absence of polymer degradation and film melt fracture.

This invention relates to a process of forming a polyamide composition having increased crystallization rate which comprises the steps of reducing the oligomeric polyamide content of said composition to less than 8% by weight of the composition, preferably with prior melt shearing, use of 1-2% nucleating filler e.g. talc and a mold release agent.

Process for improving the properties of polymers

New process for blowing molding polyamide compositions, employing a composition comprising a polyamide and one or more cyanate components, specifically cross-linking cyanates which form a triazine upon curing.

Blow molding compositions of polyamide and cyanate components

This invention relates to a process for improving the optical, thermal and/or mechanical properties of a polymer by subjecting a melt of the polymer to a shearing action at an effective shear rate, as for example a shear rate of greater than about 100 sec.sup.-1, for a time sufficient to improve said properties.

This invention relates to a composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc and lays bentonite, montmorillonite, hectorite and derivatives thereof.

Nucleating system for poly(chlorofluoroethylene) and articles formed

The invention relates to novel tri-acetal polyol compounds and to a crystalline polyolefin composition having dispersed therein a nucleating agent composed of one or more of said polyol acetals.

Polyolefins containing polyol nucleating agents and articles formed

The invention relates to a crystalline polyolefin composition having dispersed therein a nucleating agent composed of one or more polyesters.

Polyolefins containing polyester nucleating agent and articles formed

This invention relates to a process of preparing polytetrafluoroethylene comprising one or more fractions of polyethylene having a melting point of greater than about 340.degree. C. by subjecting a polytetrafluoroethylene to a shear at elevated temperature.

Process for improving the properties of polytetrafluoroethylene

This invention relates to a process of modifying the crystallization temperature (T.sub.cc) of polymers, such as polyesters or polyamides, the polymers produced by this process and the molding compositions containing these polymers. The process comprises cooling a polymer to a temperature sufficient to allow grinding of the polymer to an effective particle and then grinding said polymer to the effective particle size in order that the polymer exhibits an increased T.sub.cc.

A process for forming random copolymers which comprises forming a polymer melt containing one or more polyamides and one or more aryl phosphoryl azide compounds, such as diphenyl phosphoryl azide; and heating said melt for a period of time sufficient to form the desired amount of the copolymer.

Process for production of quasi-random copolymers from homopolymers

A process for decreasing the melt index and increasing the melt viscosity and melt elasticity of polyamide by adding thereto an effective amount of an aryl phosphoryl azide compound as for example diphenyl phosphoryl azide, and thereafter heating the composition until the desired changes in melt index, melt viscosity and melt elasticity are attained.

Process for increasing the melt viscosity and/or melt elasticity of

This invention relates to a process for blow molding polyamide compositions where the molten polyamide includes an effective amount of one or more aryl phosphoryl azide compounds.

Growing community of inventors

Cedar Knolls, NJ, United States of America

Yash P Khanna