Patent application number | Description | Published |
20100029819 | HEAT RESISTANT MOLDED OR EXTRUDED THERMOPLASTIC ARTICLES - Disclosed is a molded or extruded thermoplastic article having high heat stability over at least 500 hours at least 170° C. including a thermoplastic composition including a thermoplastic resin; one or more polyhydric alcohols having more than two hydroxyl groups and a having a number average molecular weight (M | 02-04-2010 |
20100029837 | COPOLYETHERESTER COMPOSITIONS AND ARTICLES MADE FROM THESE - Copolyetherester compositions comprising a melt-mixed blend of one or more copolyetherester(s) comprising a multiplicity of recurring long chain ester units and short chain ester units joined head-to-tail through ester linkages, and (b) about 0.25 to about 15 weight percent of one or more polyhydric alcohols having more than two hydroxyl groups; wherein all weight percentages are based on the total weight of the copolyetherester composition. Molded or extruded thermoplastic articles formed from the copolyetherester compositions, wherein 2 mm test bars prepared from said copolyetherester composition, and exposed at a test temperature of 150° C. for a test period of about 120 hours, in an atmosphere of air, and tested according to according to ISO 527-2/5A method have, on average, a retention of tensile strain at break of at least 50 percent as compared with an unexposed control having identical composition and shape. | 02-04-2010 |
20110147998 | Polyester Compositions with Good Melt Rheological Properties - Processes of making hyperbranched polymers comprising heating in the presence of a mild basic/nucleophilic esterification catalyst a monomer mixture comprising a hyperbranching monomer consisting of compounds having two COOH groups and one OH group, compounds having one COOH group and two OH groups, compounds having one COOH group and three OH groups, or compounds having three COOH groups and one OH group, | 06-23-2011 |
20110152456 | Polyester Compositions with Good Melt Rheological Properties - Processes of making thermoplastic compositions comprising melt-mixing one or more thermoplastic polymers with a hyperbranched polymer made by heating in the presence of a mild basic/nucleophilic esterification catalyst a monomer mixture comprising a hyperbranching monomer consisting of compounds having two COOH groups and one OH group, compounds having one COOH group and two OH groups, compounds having one COOH group and three OH groups, or compounds having three COOH groups and one OH group, wherein the mild basic/nucleophilic esterification catalyst is selected from tin, titanium, aluminum, antimony, manganese, zinc, and calcium derivatives. Upon molding the thermoplastic composition into a test specimen having a thickness of 2 millimeters and after aging the test specimen at 121° C., 2 atm and 100 percent relative humidity for 50 hours, the test specimen retains at least 50 percent of its initial tensile strength as measured according to ISO 527-2/5A. | 06-23-2011 |
20110152457 | Polyester Compositions with Good Melt Rheological Properties - Processes of making thermoplastic compositions comprising melt-mixing certain hyperbranched polymers with one or more thermoplastic polymers, such that the hyperbranched polymers are made by heating the presence of an acid esterification catalyst a monomer mixture comprising a hyperbranching monomer consisting of compounds having two COOH groups and one OH group, compounds having one COOH group and two OH groups, compounds having one COOH group and three OH groups, or compounds having three COOH groups and one OH group, | 06-23-2011 |
20120165443 | THERMOPLASTIC RESINS CONTAINING PBT UNITS, HAVING REDUCED ORGANIC CARBON EMISSIONS - Disclosed is a copolyether ester elastomer resin including a polybutylene terephthalate (PBT) repeat unit, and a titanium catalyst deactivating compound. | 06-28-2012 |
20120208954 | COPOLYETHERESTER COMPOSITIONS AND ARTICLES MADE FROM THESE - Copolyetherester compositions comprising a melt-mixed blend of one or more copolyetherester(s) comprising a multiplicity of recurring long chain ester units and short chain ester units joined head-to-tail through ester linkages, and (b) about 0.25 to about 15 weight percent of one or more polyhydric alcohols having more than two hydroxyl groups; wherein all weight percentages are based on the total weight of the copolyetherester composition. Molded or extruded thermoplastic articles formed from the copolyetherester compositions, wherein 2 mm test bars prepared from said copolyetherester composition, and exposed at a test temperature of 150° C. for a test period of about 120 hours, in an atmosphere of air, and tested according to according to ISO 527-2/5A method have, on average, a retention of tensile strain at break of at least 50 percent as compared with an unexposed control having identical composition and shape. | 08-16-2012 |
20130327558 | HALOGEN FREE FLAME RETARDANT THERMOPLASTIC ELASTOMER COMPOSITIONS HAVING IMPROVED INSULATION RESISTANCE - Halogen-free flame retardant compositions comprising copolyetherester thermoplastic elastomers, melamine cyanurate and epoxy-containing compounds and cables and wires made from such flame retardant polymer composition provide good electrical insulation resistance during use. | 12-12-2013 |
20140275346 | HYDROLYSIS RESISTANT COMPOSITIONS - Polyester compositions comprising: a) at least one semi-aromatic polyester resin; b) at least one reinforcing agent; c) hydroxyapatite; d) at least one epoxy component having two or more epoxy functional groups per molecule of the epoxy component; and optionally, at least one toughener, wherein the compositions exhibit the combined property of a desirable melt viscosity stability and a desirable hydrolysis resistance to articles molded from the compositions. Articles molded or extruded from these compositions especially, electric and electronic components. Methods of maintaining melt viscosity stability of a melt-mixed composition while simultaneously retaining tensile strength in the article prepared from the melt-mixed composition. | 09-18-2014 |