THREE DIMENSIONAL POLYMER WEBS AND METHODS OF MAKING SAME

Three-dimensional nonwoven webs comprise at least one layer consisting of drawn and unoriented thermoplatic fibers formed from a blend of polypropylene and polybutylene, wherein the blend by weight is from 90% to 70% polypropylene and from 10% to 30% polybutylene. The blend can be a blend of a homop...

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Bibliographic Details
Main Authors GWALTNEY, SHARON WATKINS, SHAWVER, SUSAN ELAINE, WATTS, HUGO PAUL, DAPONTE, DIEGO H
Format Patent
LanguageEnglish
Published 04.12.1991
Edition5
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
BRAIDING
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
COFFEE MILLS
COTTON-WOOL
DOMESTIC ARTICLES OR APPLIANCES
DOMESTIC WASHING OR CLEANING
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
FURNITURE
HUMAN NECESSITIES
KNITTING
LACE-MAKING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NATURAL OR ARTIFICIAL THREADS OR FIBRES
NON-WOVEN FABRICS
PERFORMING OPERATIONS
SPICE MILLS
SPINNING
SUCTION CLEANERS IN GENERAL
TEXTILES
TRANSPORTING
TRIMMINGS
WADDING
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Summary:Three-dimensional nonwoven webs comprise at least one layer consisting of drawn and unoriented thermoplatic fibers formed from a blend of polypropylene and polybutylene, wherein the blend by weight is from 90% to 70% polypropylene and from 10% to 30% polybutylene. The blend can be a blend of a homopolymer of polypropylene and a homopolymer of polybutylene: a homopolymer of polypropylene and a copolymer of polybutlene: a copolymer of polypropylene and a homopolymer of polybutylene: and a copolymer of polypropylene and a copolymer of polybutylene. In addition, ternary blends comprising polypropylene, polybutylene and a terpolymer (propylene, ethylene, and l-butene) are disclosed. The resulting nonwoven webs have high strength, toughness, and tear resistance.
Bibliography:Application Number: EP19910106709