James R Crozier

US Patent:

47812230, Nov 1, 1988

Filed:

Jun 26, 1987

Appl. No.:

7/066551

Inventors:

J. Eugene McAliley - Rock Hill SC
Gene P. Daumit - Charlotte NC
Fredrick A. Ethridge - Waxhaw NC
James R. Crozier - Rock Hill SC

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

D03D 2300

US Classification:

139420R

Abstract:

An improved multifilamentary tow of carbon fibers is provided which possesses a novel physical configuration that better enables it to undergo impregnation with a matrix-forming resin to form quality composite articles. The individual filaments of the tow are randomly decollimated and commingled with numerous filament cross-over points throughout the length of the multifilamentary tow in order to create a multitude of interstices between adjacent filaments which are well adapted to receive and retain a matrix-forming resin as evidenced by the ability of the filaments when subjected to the flaring test described herein to resist lateral expansion to a width that is as much as three times the original width. The tow commonly comprises approximately 1,000 to 50,000 filaments. Also, the filaments of the tow are substantially continuous and contain at least 70 percent carbon by weight (preferably at least 90 percent carbon by weight).

US Patent:

47146427, Dec 22, 1987

Filed:

Jun 27, 1985

Appl. No.:

6/748781

Inventors:

J. Eugene McAliley - Rock Hill SC
Gene P. Daumit - Charlotte NC
Frederick A. Ethridge - Waxhaw NC
James R. Crozier - Rock Hill SC

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

B32B 512

US Classification:

428113

Abstract:

An improved multifilamentary tow of carbon fibers is provided which possesses a novel physical configuration that better enables it to undergo impregnation with a matrix-forming resin to form quality composite articles. The individual filaments of the tow are randomly decollimated and commingled with numerous filament cross-over points throughout the length of the multifilamentary tow in order to create a multitude of interstices between adjacent filaments which are well adapted to receive and retain a matrix-forming resin as evidenced by the ability of the filaments when subjected to the flaring test described herein to resist lateral expansion to a width that is as much as three times the original width. The tow commonly comprises approximately 1,000 to 50,000 filaments. Also, the filaments of the tow are substantially continuous and contain at least 70 percent carbon by weight (preferably at least 90 percent carbon by weight).

US Patent:

46335501, Jan 6, 1987

Filed:

Mar 29, 1985

Appl. No.:

6/717405

Inventors:

John E. McAliley - Rock Hill SC
James R. Crozier - Rock Hill SC

Assignee:

BASF Aktiengesellschaft

International Classification:

D02G 116
D02J 108

US Classification:

28272

Abstract:

An apparatus for entangling filamentary yarns comprises first and second blocks which are positionable in mutually superimposed relationship. Each block includes a plurality of channels and a plurality of fluid ports. The channels are located so that when the blocks are in superimposed relationship, respective ones of the channels are aligned to define yarn passages through which yarns can be fed. The fluid ports communicate with the yarn passages and are communicable with pressurized fluid to create a turbulent fluid flow within respective ones of the yarn passages for entangling the yarns. A motor actuated mechanism separates the first and second blocks to provide simultaneous and immediate access to the interior of the yarn passages. When the blocks are separated, the yarn can be continually fed therethrough to pull trash through the yarn passages. Each block includes a base section and a head section removably attached thereto.

US Patent:

46759573, Jun 30, 1987

Filed:

Sep 9, 1986

Appl. No.:

6/905132

Inventors:

John E. McAliley - Rock Hill SC
James R. Crozier - Rock Hill SC

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

D02G 116
D02J 108

US Classification:

28272

Abstract:

An apparatus for entangling filamentary yarns comprises first and second blocks which are positionable in mutually superimposed relationship. Each block includes a plurality of channels and a plurality of fluid ports. The channels are located so that when the blocks are in superimposed relationship, respective ones of the channels are aligned to define yarn passages through which yarns can be fed. The fluid ports communicate with the yarn passages and are communicable with pressurized fluid to create a turbulent fluid flow within respective ones of the yarn passages for entangling the yarns. A motor actuated mechanism separates the first and second blocks to provide simultaneous and immediate access to the interior of the yarn passages. When the blocks are separated, the yarns can be continually fed therethrough to pull trash through the yarn passages. Each block includes a base section and a head section removably attached thereto.