CHOPPED CARBON FIBER PREFORM PROCESSING METHOD USING COAL TAR PITCH BINDER

Title:

CHOPPED CARBON FIBER PREFORM PROCESSING METHOD USING COAL TAR PITCH BINDER

Document Type and Number:

WIPO Patent Application WO2004108859

Kind Code:

A3

Abstract:

A procedure for forming a chopped fiber preform using a coal tar pitch binder and the product thereof by providing removable inside and outside sleeves (16, 18) on a mold pan (12), and distributing chopped carbon fibers (20) throughout the mold pan (12) and sleeves (16, 18) to a specified depth. The fibers (20) are pressed and a vacuum is pulled prior to introducing the coal tar pitch binder, and additional pressure is provided to form the desired product.

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Inventors:

SNYDER DAVID R
WOMBLES ROBERT H
GOLUBIC THOMAS A

Application Number:

PCT/US2004/017506

Publication Date:

September 09, 2005

Filing Date:

June 01, 2004

Export Citation:

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Assignee:

KOPPERS IND OF DELAWARE INC (US)

International Classes:

B29C43/04; B29C43/34; B29C43/56; B29C70/42; B29C70/88; C04B35/52; C04B35/83; C08L21/00; F16D69/02; C08L95/00; C10C; (IPC1-7): B29C43/04; B29C43/34; B29C43/56; B29C70/42; B29C70/88

Foreign References:

US2302564A	1942-11-17
US3171720A	1965-03-02
US3309437A	1967-03-14
US3867491A	1975-02-18
US5569417A	1996-10-29

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