A polyamide molding material having good impact strength at low temperature comprising a blend of 66 nylon; 6 nylon; and a toughening polymer.

Toughened polyamide blends

The invention provides a composition of matter having oxygen scavenger capabilities. The composition comprises a blend of a first polymeric component comprising a polyolefin, the first polymeric component having been grafted with an unsaturated carboxylic anhydride or an unsaturated carboxylic acid, or combinations thereof, or with an epoxide; a second polymeric component having OH, SH or NHR² groups where R² is H, C₁-C₃ alkyl, substituted C₁-C₃ alkyl; and a metal salt capable of catalyzing the reaction between oxygen and the second polymeric component, the polyolefin being present in an amount sufficient so that the blend is non phase-separated. In the preferred composition maleic anhydride is the grafted material, the second polymeric component is MXD6 nylon and the metal is cobalt. A method of providing a homogeneous blend of a polyolefin with a second polymeric component having OH, SH or NHR² groups is also set forth. Articles such as containers for foods and beverages utilizing such compositions and/or such method are provided.

Oxygen scavenging homogeneous modified polyolefin-oxidizable polymer-metal salt blends

Molding or fiber grade condensation polymer having copolymerized therein a total of from 1.0 to about 5,000 ppm of at least one methine moiety having one or more methine units defined as "the group $(1,5)$C=C$(1,5)$ conjoined with a conjugated aromatic system", said moiety absorbing in the range of from about 350 nm to about 650 nm and being nonextractable from said polymer and stable under the polymer processing conditions. The moieties preferably have molecular weights of from about 200 to about 600 although lower and higher molecular weights are also operable and are derived from reactants (monomers) having one or more groups such as hydroxyl, carboxyl, carboxylic ester, acid halide, amino and the like which condense during condensation or polycondensation to enter the moiety into the polymer chain.

Condensation polymers and products therefrom

Blends of highly-neutralized ionomers of copolymers of ethylene and high weight percentages of α,β-ethylenically-unsaturated C3-C8 carboxylic acids dispersed in a continuous or co-continuous polyamide phase are provided and a process for making such blends. The blends are particularly useful in applications such as molded parts where toughness, high gloss, abrasion/scratch (mar) resistance, UV resistance, high temperature properties and stiffness are desired.

High performance ionomer blends

Thermoplastic molding materials containing: A) 10 to 90 wt. % of at least one thermoplastic polymer; B) 1 to 20 wt. % of a polyethylene containing carboxyl groups with an average molecular weight Mn (number average) of 24,000 to 100,000 g/mol; C) 5 to 60 wt. % of a halogen-free flame-proofing agent; D) 0 to 70 wt. % of other additives and auxiliary processing agents, wherein the sum of the weight percentages of constituents A) to D) amounts to 100 %.

Flame-proofed molding materials

Certain metal compounds such as antimony oxide and magnesium oxide are used to enhance the notched Izod impact resistance of molded objects made from selected polyamide copolymer compositions comprised of polyepsiloncaprolactam (nylon-6) or polyhexamethyleneadipamide (nylon-66) and preferably ethylene/ethyl acrylate and ethylene/acrylic acid copolymers.

Schulze Stephen Robert

Papers

High impact molding compositions

High impact resistance molding composition