Cellulose esters or ethers blended with cyclic ester polymers

Abstract

Abstract Uniform, thermoplastic, normally solid blends containing cyclic ester polymers containing recurring units of the formula WHEREIN EACH R, individually, is selected from the class consisting of hydrogen, alkyl, halo, and alkoxy; A is the oxy group; x is an integer from 1 to 4; y is an integer from 1 to 4; z is an integer of zero or one; with the provisos that (a) the sum of x + y + z is at least 4 and not greater than 7, and (b) the total number of R variables which are substituents other than hydrogen does not exceed 3, with or without recurring units of the formula wherein each R'' is selected from the class consisting of, individually, hydrogen, alkyl, cyclcoalkyl, aryl, and chloroalkyl, and, together with the ethylene moiety of the oxyethylene chain of Unit II, a saturated cycloaliphatic hydrocarbon ring having from 4 to 8 carbon atoms; and thermoplastic normally solid polymer which can be a condensation polymer, and/or an addition polymer of olefinically unsaturated monomers having no more than one hydrogen bonded to each carbon of each olefinically unsaturated group thereof, including such polymers as cellulose derivatives, nylons, polyester polymers, polyoxyalkylenes, polycarbonates, poly(fluorocarbons), coumaroneindene resins, maleic acid or anhydride addition polymers and copolymers, stilbene addition polymers and copolymers, chlorinated polyethers, aromatic poly(hydroxy ether) polymers, polysufones, polypeptides, etc. These novel blends are useful in the production of fibers, films, coatings, adhesives, wire and cable coatings, molding materials, extrusion materials, or shaped articles, having one or more unique properties, such as, dyeability, improved stress crack resistance, improved optical properties, e.g., improved hiding power, low haze, high gloss and/or high light transmission, improved plasticization, improved toughness, improved melt processability, improved impact resistance, and/or improved ability to disperse additives, such as, fillers coloring agents, antioxidants, extenders, etc.

Inventors

• 👤 Joseph Victor Koleske
• 👤 Jr Clyde Jesse Whitworth
• 👤 Robert Dean Lundberg

Bibliographic Details