The Dow Chemical Company

Other

Dow Global Technolgoies LLC

Lubrizol Advanced Materials, Inc.

Hani Farah

Michael K Laughner

Morgan Mark Hughes

Frank M Hofmeister

Samuel A Ogoe

Chai-Jing Chou

Leo R Novak

Francisco Lerma, Jr

Steve R Ellebracht

Chai J Chou

Stephen E Bales

Stephen M Hoenig

Ralph D Priester, Jr

Christopher Michael Edwards

Edward Louis D'Hooghe

Gregory M Smith

Kevin F Dick

Nancy J Schrock

Grace M Willis

Don R Roden, Jr

Francisco Lerma

The present invention is a low haze thermoplastic polyurethane (TPU) comprising structural units of a diisocyanate; a diol and three different chain extenders (butanediol chain extender; a different linear diol co-chain-extender and a cyclic co-chain-ex-tender). The TPU has good combinations of light transmission and clarity, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. The preferred composition is a TPU that is based on polycaprolactone as diol, MDI as the diisocyanate monomer, butanediol chain extender, 1,3 propanediol linear chain co-extender and cyclohexanedimethanol cyclic chain co-extenders, and has good clarity and tensile strength.

Low haze thermoplastic polyurethane using co-chain extenders

The present invention is a blend of a polymeric hydrocarbon and a thermoplastic polyurethane which is compatibilized a polymeric hydrocarbon that contains low concentrations of isocyanate reactive group. The compatibilizer can be prepared by reacting a modified polymer having pendant or incorporated amine-reactive groups with a hydroxyl amine, a diamine, or a polyethermonoamine. The compatibilized blend may further include a non-TPU engineering thermoplastic to form compatible blends of the polymeric hydrocarbon and the non-TPU engineering thermoplastic. In this case, the TPU is used as a co-compatibilizer.

Compatibilized resin blends and the preparation thereof

The present invention is an article comprising a fiber-reinforced engineering thermoplastic polyurethane composite welded to a thermoplastic part by way of an interlayer containing a dispersion of a ferromagnetic material and a method for preparing the same. Alternatively, the composite or the thermoplastic part or both may contain the ferromagnetic material. A tight bond is created by subjecting the ferromagnetic material to a radio-frequency magnetic field to generate heat, which locally melts composite and the thermoplastic part, then allowing the subjected areas to cool. The invention is particular useful for the preparation of window frames.

Electromagnetically welded composite and the preparation thereof

A polycarbonate blend composition with a good balance of high impact resistance, moldability, and controllable gloss with reduced tendencies of pearlescence or delamination in molded articles is prepared by admixing with polycarbonate a substantially linear ethylene polymer or linear ethylene polymer, an olefinic epoxide-containing copolymer, and a polyester.

Polycarbonate blend compositions

A blend of polycarbonate and a homogeneously branched, linear ethylene polymer, which blend has a desirable balance of impact resistance and toughness properties.

Blends of polycarbonate and linear ethylene polymers

A blended composition containing polycarbonate, polyester, an olefinic epoxide-containing copolymer and a polyamine compound, which composition possesses a desirable balance of impact resistance, solvent resistance, and resistance to thermal deformation.

Polycarbonate compositions modified with a polyamine compound

Carbonate polymer compositions are prepared comprising a first diaryl fluorene carbonate polymer component and a second bisphenol A carbonate polymer component, the blend composition preferably comprising from about 1 to about 99 weight percent diaryl fluorene carbonate polymer component based on weight of first and second components. Preferably the first diaryl fluorene carbonate polymer component is a copolymer comprising (a) from about 1 up to and including about 99 mole percent dihydroxyaryl fluorene moiety based on the weight of dihydroxyaryl fluorene compound and additional multihydric monomer compound and (b) moieties of at least one additional condensation copolymerizable multihydric monomer compound remnant. In another embodiment, the invention is an improved process for preparing heat resistant diaryl fluorene carbonate polymer composition comprising the step of combining a first diaryl fluorene carbonate polymer component and a second bisphenol A carbonate polymer component, different from the diaryl fluorene carbonate polymer component. These blends can be prepared by known means such as by solution blending or melt blending. It has surprisingly been found that these blend compositions are miscible and transparent across a range of weight ratios and diaryl fluorene contents.

Blends of diaryl fluorene carbonate polymers with bisphenol A carbonate

A blend of polycarbonate and a substantially linear ethylene polymer which has a desirable balance of impact and solvent resistance properties.

Blends of polycarbonate and ethylene polymers

A composition possessing a desirably high balance of resistance to thermal deformation and to chemical solvents, and reduced notch sensitivity, prepared from a polycarbonate having a glass transition temperature in excess of at least 165.degree. C., an aromatic polyester, a polyphenylene ether, and an elastomeric impact modifier.

Impact resistant blends of high heat polycarbonate and aromatic polyester

Filled thermoplastic molding composition containing a polycarbonate, a polyester, an olefin/carbon monoxide copolymer, a grafted core-shell elastomer, and a talc filler.

Filled thermoplastic molding compositions

Environmental stress failure resistant and impact resistant polycarbonates useful for producing molded plastic components are prepared from an aromatic polycarbonate and a copolymer of ethylene and carbon monoxide.

Environmental stress failure resistant polycarbonate

Environmental stress failure resistant and impact resistance thermoplastic molding compositions are prepared from an aromatic polycarbonate, an aromatic polyester, and a copolymer of ethylene and carbon monoxide.

Environmental stress failure resistant polycarbonate blend

A carbonate polymer composition comprising a carbonate polymer such as a bisphenol-A homopolycarbonate which carbonate polymer contains an amount of a salt represented by the formula: ##STR1## wherein Ar is an aromatic group, R is a monovalent organic moiety, or Ar and R collectively are a divalent aromatic moiety M is a cation, and n is a number corresponding to the valence of M and an amount of a free aromatic sulfimide, which carbonate polymer composition resists combustion upon exposure to an ignition source, exhibits good optical properties, and exhibits molecular weight stability. Optionally, a halogenated organic compound may be added to the composition.

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Sugar Land, TX, United States of America

Hani Farah