HYBRID UNIDIRECTIONAL TAPES, PARTS INCLUDING THE SAME, AND METHODS OF MAKING SUCH TAPES AND PARTS

• Main Authors: THEOFANOUS, Theofanis, KOURKOUTSAKI, Theodosia, PICARD, Philipp
• Format: Patent
• Language: English; French; German
• Published: 26.08.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Some unidirectional (UD) tapes (10a) include a matrix material and fibers that are dispersed within the matrix material, the fibers including fibers (14a) of a first type and fibers (14b) of a second type that is distinct from the first type, wherein the fibers are positioned such that a cross-section of the tape, taken perpendicularly to the length of the tape, includes one or more first fiber regions (26) in which at least 90% of the fibers are of the first type and one or more second fiber regions (30a, 30b) in which at least 90% of the fibers are of the second type, wherein each of the fiber regions has a width that is greater than or equal to 3 millimeters (mm), and wherein the width of at least one of the first fiber region(s) is at least 2 times larger than the width of at least one of the second fiber region(s).