ROVINGS AND METHODS AND SYSTEMS FOR PRODUCING ROVINGS
摘要
A fiber glass roving comprises a plurality of ends from a plurality of direc t draw packages, each direct draw package having a single end. Ends from a plurality of direct draw packages may be combined to form a roving at a poin t of use, such as just prior to chopping the roving in a chopping gun. Assembl ed rovings may also be formed by winding a plurality of ends from a plurality o f direct draw packages, each direct draw package having a single end, into an assembled roving package.
申请公布号
CA2475791(C)
申请公布日期
2007.11.13
申请号
CA20032475791
申请日期
2003.02.11
申请人
PPG INDUSTRIES OHIO, INC.
发明人
SARRATT, JOHN L.;PETERS, JAMES C.;TANG, CHI;WESTBROOK, PAUL A.;GU, PU;CROSS, CHRISTOPHER G.