Patent ID: 8784988
Filing Date: 2014-07-22
Classification: D01F,Y10T

Abstract:
1. A polymer inorganic-particulate composite fiber comprising a molecularly self-assembling (MSA) material and an inorganic particulate dispersed in the MSA material, wherein the inorganic particulate comprises a metal hydroxide or an inorganic clay, the inorganic clay consisting of a cation exchanging layered material and inorganic cations, the cation exchanging layered material having a cation exchanging capacity, the polymer inorganic-particulate composite fiber having an average diameter and the inorganic particulate having at least two dimensions that are less than 10% of the average diameter of polymer inorganic-particulate composite fiber, the inorganic particulate comprising from 1 weight percent (wt %) to 90 wt % of the polymer inorganic-particulate composite fiber based on total weight of the polymer inorganic-particulate composite fiber, and the MSA comprises repeat units of formula I: and at least one second repeat unit selected from the ester-amide units of Formula II and III: and the ester-urethane units for Formula IV: or combinations thereof wherein: R is at each occurrence, independently a C2-C20 non-aromatic hydrocarbylene group, a C2-C20 non-aromatic heterohydrocarbylene group, or a polyalkylene oxide group having a group molecular weight of from about 100 grams per mole to about 5000 grams per mole; R1 at each occurrence independently is a bond or a C1-C20 non-aromatic hydrocarbylene group; R2 at each occurrence independently is a C1-C20 non-aromatic hydrocarbylene group; RN is —N(R3)-Ra-N(R3)-, where R3 at each occurrence independently is H or a C1-C6 alkylene and Ra is a C2-C20 non-aromatic hydrocarbylene group, or RN is a C2-C20 heterocycloalkyl group containing the two nitrogen atoms, wherein each nitrogen atom is bonded to a carbonyl group according to formula (III) above; n is at least 1 and has a mean value less than 2; and w represents the ester mol fraction of Formula I, and x, y and z represent the amide or urethane mole fractions of Formulas II, III, and IV, respectively, where w+x+y+z=1, and 0<w<1, and at least one of x, y and z is greater than zero but less than 1.