Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing. Low haze and high transmission versions are a function of specific grades of styrenic block copolymer (SBC) used for impact modification.

Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing.

Abstract: A continuous fiber reinforced thermoplastic (CFRTP) tape is disclosed, made of continuous, unidirectional glass fibers embedded in polyethylene terephthalate glycol modified (PETG) containing a polyphosphonate homopolymer non-halogenated flame retardant (NHFR). With formulations balancing the spread of flame and the detection of smoke, the tape achieves a Class A value when tested in accordance with ASTM E84.

Abstract: Cyclic olefin copolymer (COC) and cyclic olefin polymer (COP) are useful as support material for 3D printing of high temperature polymers, such as polyimides.

Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing.

Abstract: Copolymers of a polyvinyl butyral backbone with polylactic acid grafts and their compounds are disclosed, which can be used to produce clear, flexible and ductile bio-based films. The copolymers are amorphous and have been shown to maintain clarity, flexibility, and ductility after continuous exposure to thermal aging at 80° C. for one week.

Abstract: Aliphatic polyimides are synthesized by a reaction of 2 moles of an unsaturated monoanhydride or an unsaturated diacid with both one mole of a diamine and one mole of a monoamine. Imidization of intermediates so formed from those reactions resolve to 6 possible bicyclic imidic structures bridged by monoamidic or saturated hydrocarbon spans, more likely the latter. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.

Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing.

Abstract: Novel aromatic polyimides are disclosed with sufficient physical properties to be useful in 3D printing.

Abstract: Novel aromatic polyimides are disclosed with sufficient physical properties to be useful in 3D printing.

Abstract: Aliphatic polyimides are synthesized by a 2:1 molar ratio reaction of an unsaturated monoanhydride or an unsaturated diacid with a diamine. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.

Abstract: A method and system for oxygen molecule scavenging is disclosed. The system employs as a novel copolymer as the reducing agent for oxygen molecules. The copolymer is the polymerization product of cyclic aliphatic monomer and unsaturated functional polymer.

Abstract: Cyclic olefin copolymer (COC) and cyclic olefin polymer (COP) are useful as support material for 3D printing of high temperature polymers, such as polyimides.

Abstract: A completely non-halogenated flame retardant polycarbonate compound includes polycarbonate, non-halogenated termini-functional chemical such as vinyl-terminated siloxane and non-halogenated hydride-functional polysiloxane as non-halogenated drip suppressant ingredients which react in the presence of heat to form a drip suppressant adduct, and potassium 3-(phenylsulfonyl)benzenesulfonate as a non-halogenated char former. The compound can achieve a UL 94 rating of V-0 at a thickness of at least 3.2 mm and otherwise achieves no dripping/igniting of the cotton indicator during that test.

Abstract: Copolymers of a polyvinyl butyral backbone with polylactic acid grafts and their compounds are disclosed, which can be used to produce clear, flexible and ductile bio-based films. The copolymers are amorphous and have been shown to maintain clarity, flexibility, and ductility after continuous exposure to thermal aging at 80° C. for one week.

Abstract: Functionalized non-halogenated flame retardants are disclosed having improved hydrolytic stability, represented by decreased conductivity measured in units of ? S/cm when immersed in distilled water and heated to 80 C. The functionalized flame retardant comprises polyphosphonate functionalized by epoxy-functional styrene-acrylic oligomer or aromatic carbodiimide, and optionally antioxidant. Also disclosed are polymer compounds, comprising the functionalized flame retardant described above and a second polymer resin; and flame retardant plastic articles made from such polymer compounds.

Abstract: Reactive extrusion can be used in a continuous, solvent-less preparation of imide oligomers involving two competing reactions among three ingredients, the first reaction between a dianhydride and a diamine and the second reaction between an endcap and the same diamine. The imide oligomer can form a composite via conventional production methods or via formation of a film from imide oligomer re-melted in an extruder before being impregnated into tape or fabric.

Abstract: Cyclic olefin copolymer (COC) has its impact toughness and its resistance to UV absorbers and fatty acid derivatives enhanced to commercially acceptable levels by the addition of an impact modifying polymer selected from the group consisting of styrenic block copolymers and olefinic block copolymers and combinations thereof; and a linear or branched polyolefin, respectively.

Abstract: High temperature nylon compounds that are flame retardant using non-halogenated ingredients are disclosed. Polyphenylene ether, or alternatively the combination of polyphenylene ether and bismaleimides, act as synergists with polyphosphonate to achieve a V-0 rating in a UL 94 test at thicknesses of about 3.18 mm or, preferably, about 1.59 mm.

Abstract: A non-halogenated flame retardant polycarbonate compound is disclosed. The compound comprises a polycarbonate, a non-halogenated, non-migrating, non-plasticizing flame retardant adduct. The compound can achieve a UL 94 rating of V-0 at a thickness of at least 3.2 mm and otherwise achieves no dripping/igniting of the cotton indicator during that test. The adduct is formed from an allyl-functional phenoxyphosphazene and a hydride-functional polysiloxane.