초록 ▼

A modifier composition is disclosed for compounding with a polyolefin to produce a resin from which cement adherent polyolefin fibers may be produced by conventional fiber forming methods. The modifier composition comprising a polyolefin resin modified to contain a reactive Si(IV) moeity. A preferre

A modifier composition is disclosed for compounding with a polyolefin to produce a resin from which cement adherent polyolefin fibers may be produced by conventional fiber forming methods. The modifier composition comprising a polyolefin resin modified to contain a reactive Si(IV) moeity. A preferred embodiment comprises the reaction product obtained from the high shear dry blending of an alkylamino alkoxysilane with an acid modified polyolefin, preferably gamma-aminopropyltriethoxysilane dry blended with maleated polypropylene. Such modifier composition when compounded in from about 1 to about 10 weight percent with a polyolefin, preferably polypropylene, provides a resin from which cement adherent fibers may be produced.

대표청구항 ▼

Concrete adherent polyolefin fibers for reinforcement of concrete articles, comprising: fibers composed of from about 90 wt % to about 99 wt % of an olefinic polymer containing from about 1 wt % to about 10 wt % of a modifying agent comprising: a Si (IV) composition represented by the formula: [Figu

Concrete adherent polyolefin fibers for reinforcement of concrete articles, comprising: fibers composed of from about 90 wt % to about 99 wt % of an olefinic polymer containing from about 1 wt % to about 10 wt % of a modifying agent comprising: a Si (IV) composition represented by the formula: [Figure] wherein R is a polyolefin having from about 50 to 1,000 monomeric units, s is 0 or 1, R1 is a C1-C10 alkylene group, C6-C20 arylene or substituted arylene group, Si1-10 oligomeric siloxane group, alkylene amide or imide, arylene amide or imide, alkylarylene amide or imide, alkylene or arylene sulfonyl amine, alkylene or arylene ester, alkylene or arylene carbonate with the alkylene and arylene having from 1 to 10 and 6 to 20 C atoms, respectively, R2, R3 and R4 which can be the same or different are hydrogen, halogen, hydroxyl C1-C10 alkyl or C1-C10 alkoxy group, with the proviso that at least one of R2, R3 and R4 must be hydrogen, halogen or alkoxy.