Paul E Mcmahon

US Patent:

6403504, Jun 11, 2002

Filed:

Dec 2, 1999

Appl. No.:

09/452093

Inventors:

Paul E. McMahon - Mountainside NJ
Lincoln Ying - Bridgewater NJ

Assignee:

Cytec Technology Corp. - West Paterson NJ

International Classification:

B32B 2704

US Classification:

442197, 442103, 4282974, 4282981, 4282991

Abstract:

The instant invention involves a process used in preparing fibrous tows which may be formed into polymeric plastic composites. The process involves the steps of (a) forming a carbon fiber tow; (b) forming a thermoplastic polymeric fiber tow; (c) intermixing the two tows; and (d) withdrawing the intermixed tow for further use.

US Patent:

48714917, Oct 3, 1989

Filed:

Jan 6, 1987

Appl. No.:

7/004219

Inventors:

Paul E. McMahon - Mountainside NJ
Lincoln Ying - Bridgewater NJ

Assignee:

BASF Structural Materials Inc. - Charlotte NC

International Classification:

D01G 1300
B29C 4302

US Classification:

264 292

Abstract:

A composite article is prepared by forming a continuous tow of continuous carbon fibers, forming a continuous tow of thermoplastic polymer fibers, uniformly and continuously spreading the thermoplastic polymer fibers to a selected width, uniformly and continuously spreading the carbon fiber tow to a width that is essentially the same as the selected width for the thermoplastic polymer fiber tow, intermixing the tows intimately, uniformly and continuously, in a relatively tension-free state, continuously withdrawing the intermixed tow and applying the tow to a mold and heating the tow.

US Patent:

50742493, Dec 24, 1991

Filed:

Aug 31, 1990

Appl. No.:

7/576685

Inventors:

Paul W. McMahon - Brooklyn NY

International Classification:

A01K 2900

US Classification:

119 29

Abstract:

A method for making a mouse toy for cats comprises the steps of (a) providing a strip of flexible sheet material and an elongate flexible tensile element, the strip of sheet material having a width shorter that a length of the tensile element, and (b) wrapping the strip about the tensile element proximately to one end thereof to form a substantially cylindrical roll of the strip about the tensile element, such that opposite ends of the tensile element extend from opposite sides of the roll. Upon formation of the roll, the opposite ends of the tensile element are drawn towards one another and tied in a knot so that the roll is deformed to assume a partially arcuate shape and so that one of the opposite ends extends in one direction and the other of the opposite ends ends in a substantially opposite direction, whereby the deformed roll and the tensile element together assume an aspect of a mouse. A long end of the tensile element becomes the analog of a mouse's tail while the other end, if sufficiently short, can take on the appearance of a foot of the toy mouse formed in accordance with the present invention. The arcuate shape of the roll again simulates the appearance of a mouse's back.

US Patent:

43741142, Feb 15, 1983

Filed:

Jan 5, 1981

Appl. No.:

6/222790

Inventors:

Sang N. Kim - Randolph Township, Morris County NJ
Paul E. McMahon - North Plainfield NJ
John P. Riggs - New Providence NJ
John M. Rhodes - Summit NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

D01F 912

US Classification:

4234471

Abstract:

An improved continuous hot gas surface modification process for carbon fibers is provided. The carbon fibers undergoing such processing are passed for a relatively brief residence time through a surface treatment zone to which continuously is fed nitrogen dioxide and air under conditions which have been found to produce a surprisingly effective surface modification. The resulting carbon fibers exhibit a significantly enhanced surface area and an improved ability to bond to a resinous matrix material while retaining a substantial portion of the tensile strength originally exhibited. When incorporated in a resinous matrix material, a fiber reinforced composite article of enhanced interlaminar shear strength is formed.

US Patent:

43649939, Dec 21, 1982

Filed:

Jul 14, 1980

Appl. No.:

6/167987

Inventors:

Robert Edelman - Staten Island NY
Paul E. McMahon - North Plainfield NJ
Gene P. Daumit - Berkeley Heights NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B05D 510
C08K 706
C09J 316
D04H 158

US Classification:

428288

Abstract:

The present invention is directed to carbon fibers which are coated on the surface with a sizing agent of either a polyisocyanate, such as polymethylene polyphenyl polyisocyanate, or a sorbitol polyglycidyl ether having a specifically defined total chlorine content and epoxide equivalent weight. The coated carbon fibers are employed to prepare carbon fiber composites wherein the matrix resin is a thermoplastic polyester such as poly(1,4-butylene terephthalate). The matrix resin of the composite exhibits improved bonding with the coated carbon fibers thereby imparting improved interlaminar shear strength to the composite.

US Patent:

45885389, May 13, 1986

Filed:

Mar 15, 1984

Appl. No.:

6/589816

Inventors:

Howard Furst - Berkeley Heights NJ
Zev Gurion - Charlotte NC
Paul E. McMahon - Mountainside NJ
Richard D. Orwoll - Mountainside NJ
Daniel Palangio - Woodbridge NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B29C 4702

US Classification:

264 292

Abstract:

The instant invention involves a process for use in preparing tapes or rovings, which are formed from a thermoplastic material used to impregnate longitudinally extended bundles of carbon fibers. The process involves the steps of (a) gas spreading a tow of carbon fibers; (b) feeding the spread tow into a crosshead die; (c) impregnating the tow in the die with a thermoplastic polymer; (d) withdrawing the impregnated tow from the die; and (e) gas cooling the impregnated tow with a jet of air. The crosshead die useful in the instant invention includes a horizontally extended, carbon fiber bundle inlet channel, means for providing melted polymer under pressure to the die, means for dividing the polymeric material flowing into the die into an upper flow channel and a lower flow channel disposed above and below the moving carbon fiber bundle, means for applying the thermoplastic material from both the upper and lower channels to the fiber bundle, and means for withdrawing the resulting tape from the die.

US Patent:

44169248, Nov 22, 1983

Filed:

Sep 23, 1982

Appl. No.:

6/422105

Inventors:

Howell L. Peterson - New Providence NJ
Paul E. McMahon - Chatham NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B05D 726

US Classification:

4273881

Abstract:

An improved polycarbonate sizing finish is provided comprised of a polycarbonate dissolved in a solvent mixture comprising N-methyl-2-pyrrolidone (NMP) and an alcohol having from 1 to 4 carbon atoms. The use of such a solvent mixture enables a relatively constant concentration of polycarbonate to be maintained, and consequently, enables a sized product fiber to be provided having a substantially uniform polycarbonate concentration thereon. In addition, the solvent may be readily and substantially completely removed from the sized fiber.

US Patent:

60459069, Apr 4, 2000

Filed:

Nov 12, 1992

Appl. No.:

7/975141

Inventors:

Paul E. McMahon - Mountainside NJ
Lincoln Ying - Bridgewater NJ

Assignee:

Cytec Technology Corp. - Wilmington DE

International Classification:

D02G 302
B32B 900

US Classification:

428364

Abstract:

The instant invention involves a process used in preparing fibrous tows which may be formed into polymeric plastic composites. The process involves the steps of (a) forming a carbon fiber tow; (b) forming a thermoplastic polymeric fiber tow; (c) intermixing the two tows; and (d) withdrawing the intermixed tow for further use.