C08L2207/53

CHEMICAL RESISTANT POLYCARBONATE BLEND COMPOSITIONS
20230063198 · 2023-03-02 ·

A thermoplastic molding composition having superior impact strength and chemical resistance comprising 50 to 90 percent by weight (pbw) of an aromatic (co)poly(ester)carbonate, greater than 0 to 40 pbw of first graft (co)polymer comprising structural units derived from styrene, acrylonitrile and 1,3-butadiene, greater than 0 to 6 pbw of a linear glycidyl ester functional polymer comprising repeating units derived from one or more glycidyl ester monomers, greater than 0 to 15 pbw of a second graft (co)polymer comprising a core of (i) an interpenetrated network of poly(meth)alkyl acrylate and polyorganosiloxane or (ii) repeating units derived from a monoethylenically unsaturated acrylate monomer or, and a rigid phase shell selected from the group consisting of methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate and butyl methacrylate, styrene and acrylonitrile, and 0.1-1.5 pbw of an alkylbenzene sulfonic acid.

COATING COMPOSITIONS

The present invention is directed to compositions comprising a first component, a second component, and elastomeric particles. The first component comprises an epoxy-containing compound. The second component comprises a diamine comprising a cyclic ring and/or a polyamine comprising a cyclic ring. The diamine may chemically react with the epoxy-containing compound. Optionally, the cyclic ring of the diamine and/or the polyamine has at least one carbon positioned between the amino functional groups and the cyclic ring structure. Optionally, at least 50% by weight of the elastomeric particles comprise a styrene butadiene core based on total weight of the elastomeric particles. The present invention is also directed to methods of making the compositions, methods of coating a substrate, and coated substrates.

Solvent composition and production method therefor
11629237 · 2023-04-18 · ·

A solvent composition includes an organic solvent including one or more organic solvents (A) and one or more organic solvents (B), and one or more types of core-shell polymer particles each comprising a core layer and a shell layer. The organic sol vents (A) have a polar teen δp of a Hansen solubility parameter of less than 11 and a hydrogen bond term δh of less than 10, and the organic solvents (B) satisfy at least one of 11 or more of the polar term δp or 10 or more of the hydrogen bond term δh. A weight ratio of (A) to (B) ranges from 15:85 to 95:5. Based on a total weight of the solvent composition, a content of the core-shell polymer particles is 20 to 40% by weight and a water content is 1% by weight or less.

DIMENSIONALLY STABLE ACRYLIC ALLOY FOR 3-D PRINTING

An acrylic alloy composition that can be 3-D printed by a material extrusion additive manufacturing process, an acrylic filament that has a very uniform diameter useful in the extrusion additive manufacturing process, acrylic articles made from the acrylic alloy composition by a material extrusion additive process, and a material extrusion additive manufacturing process for producing the acrylic articles. The acrylic alloy composition is an alloy of an acrylic polymer, and a low melt viscosity polymer, such as polylactic acid. The alloy may optionally be impact modified, preferably with hard core core-shell impact modifiers.

POLYMER WITH LOW MOLECULAR WEIGHT PORTION AND HIGH GLASS TRANSITION TEMPERATURE PORTION FOR EARLY BLOCK RESISTANCE

Polymers including single-stage and multi-stage polymers that combine the properties of the structural integrity of a polymer with a high glass transition temperature (Tg) with a softer, lower molecular weight polymer that coalesces quickly and is flexible to maintain scrubbability are disclosed. The single-stage or an outer stage of the multi-stage polymer contains both a cross-linking monomer and a chain transfer agent at different portions of the stage. Architectural compositions containing these film-forming polymers exhibit anti-blocking properties within one hour from being applied to a substrate.

ARTICLES WITH RECYCLE CONTENT HAVING ENDURING PHYSICAL PROPERTIES COMPARABLE TO VIRGIN

A method of making an article of manufacture is disclosed, wherein the article includes a polymer with recycle content. In one or more embodiments, the polymer with recycle content is selected from the group consisting of (i) a recycle content polyester; and (ii) a recycle content cellulose ester.

Epoxy adhesive resistant to open bead humidity exposure

Epoxy adhesives are made using core-shell rubbers and small amounts if any of other elastomeric materials. The epoxy adhesives contain a mixture of latent curing agents and/or high levels of calcium oxide. The adhesives exhibit excellent bonding properties even when an open or closed bead is exposed to humid air for prolonged periods before the epoxy adhesive is cured.

Polycarbonate resin composition having excellent light-reflecting and light-shielding properties, and automotive molded article produced using the same

The present disclosure relates to a polycarbonate resin composition having excellent light-reflecting and light-shielding properties, and an automotive molded article produced using the same. The polycarbonate resin composition includes: 60 to 70 wt % of a polycarbonate resin; 4 to 10 wt % of a rubber-modified vinyl-based graft copolymer; 3 to 11 wt % of a styrene-based copolymer; 15 to 25 wt % of titanium dioxide; and 2 to 3 wt % of a mineral filler.

REACTIVE ACRYLIC POLYOLEFIN BLENDS
20220315745 · 2022-10-06 ·

Disclosed is a composition comprising a polyolefin and a core-shell acrylic polymer comprising a crosslinked core and a shell comprising a branched polymer. The branched polymer is a reaction product of reactants comprising one or more monoethylenically unsaturated ester monomers, a chain transfer agent in an amount of 0.1 to 15 weight percent, and a crosslinker in an amount of 0.1 to 15 weight percent of a crosslinker, wherein weight percent is based on total amount of reactants, provided the amount of crosslinker is within +/−5 weight percent of the amount of chain transfer agent, and wherein the crosslinker comprises at least two carbon-carbon double bonds having different reactivity. A method for preparing the composition is also disclosed.

Additive for epoxy adhesive and epoxy adhesive composition for construction including same

In an additive for an epoxy adhesive and an epoxy adhesive composition for construction including same, the additive for an epoxy adhesive is formed by atomic transfer radical polymerization (ATRP) of a polyacrylate of which one terminal is halogenated, as an arm-polymer, and a diacrylate-based compound or a dimethacrylate-based compound, as a cross-linker, and comprises a star polymer of a star-shape having a core/shell structure including a core formed by the polymerization of the cross-linker and a shell formed by a portion of the arm-polymer.