Patent application number | Description | Published |
20080287592 | Thermoplastic Starch and Synthetic Polymer Blends and Method of Making - Disclosed herein is a composition of matter comprising a blend of discontinuous thermoplastic starch domains in a synthetic polymer, said composition of matter being characterized by an average diameter of thermoplastic starch domains of about 0.2 to about 1.5 microns. Also disclosed are compositions of matter comprising a blend of discontinuous thermoplastic starch domains in a synthetic polymer and being characterized by finished articles having key mechanical properties which are essentially maintained or in some cases improved over pure synthetic polymers. In yet another aspect, the present invention provides a method for making the material of the present invention. In a related aspect, the present invention provides the novel materials issued from the method of making the material. In other aspects, the present invention provides novel finished article compositions in the form of films or molded articles. | 11-20-2008 |
20090087641 | POROUS NANOSHEATH NETWORKS, METHOD OF MAKING AND USES THEREOF - A method for making a porous material, includes melt-blending two or more non-miscible polymers to obtain a co-continuous melt, solidifying the melt to obtain a solid mass consisting of two co-continuous polymer phases, and selectively extracting one of the co-continuous phases thereby creating within the solid mass an essentially continuous pore network having an internal surface. The method further includes replicating the internal surface of the pore network within the solid mass by coating the internal surface with successive layers of materials, and selectively extracting the solid mass without extracting the layers of materials, to thereby yield the product porous material, formed of the layers of materials. The material has a void fraction higher than about 75%, and mainly having essentially fully interconnected sheath-like non-spherical pores and essentially non-fibrous walls. | 04-02-2009 |
20120232210 | Dynamically Vulcanized Thermoplastic Elastomer Film - A dynamically vulcanized alloy containing an elastomer and a thermoplastic resin is prepared by a process wherein supercritical fluid is injected into the thermoplastic elastomeric material as the material is mixed in an extruder. The material is mixed under conditions such that the thermoplastic elastomeric material is dynamically vulcanized wherein the elastomer forms a discontinuous dispersed of small particles in a continuous phase of the thermoplastic resin. The DVA material may then be directly formed into film or sheets by the use of at least one set of rolls located adjacent to the extruder outlet. | 09-13-2012 |
20120283364 | POLYMER BLENDS COMPRISING PHASE-ENCAPSULATED THERMOPLASTIC STARCH AND PROCESS FOR MAKING THE SAME - New polymer blends are provided. These blends comprise a first polymer, a second polymer and thermoplastic starch, the thermoplastic starch being at least partially encapsulated in the second polymer. The polymer blends may be shaped into articles, for example by extrusion or injection molding. | 11-08-2012 |
20140100310 | THERMOPLASTIC ELASTOMER COMPOSITIONS HAVING BIORENEWABLE CONTENT - Thermoplastic elastomer compositions, in particular derived from one or more styrenic block copolymers, a plurality of biorenewable materials, preferably a softener and one or more synergistic additives such as a polar polymer; a synergistic block copolymer such as a relatively high molecular weight styrenic block copolymer; and/or filler. In one preferred embodiment, the styrenic block copolymer comprises a controlled distribution copolymer block including a conjugated diene and a mono alkenyl arene. Numerous desirable articles can be formed from the compositions. Processes for preparing the compositions and articles are disclosed. | 04-10-2014 |
20140100311 | THERMOPLASTIC ELASTOMER COMPOSITIONS HAVING BIORENEWABLE CONTENT - Thermoplastic elastomer compositions, in particular derived from one or more styrenic block copolymers wherein at least one styrenic block copolymer comprises a controlled distribution copolymer block including a conjugated diene and a mono alkenyl arene, a plurality of biorenewable materials, preferably a softener and one or more synergistic additives such as a polar polymer; a synergistic block copolymer such as a relatively high molecular weight styrenic block copolymer; and/or filler. Numerous desirable articles can be formed from the compositions. Processes for preparing the compositions and articles are disclosed. | 04-10-2014 |
20150031837 | POLYMERIC MATERIAL AND PROCESS FOR RECYCLING PLASTIC BLENDS - There is provided a polymeric material comprising: a co-continuous or highly-continuous blend of polyethylene and polypropylene, the blend comprising a polyethylene phase and a polypropylene phase separated by a polyethylene/polypropylene interface; and one or more thermoplastics other than polyethylene and polypropylene, the one or more thermoplastics each having an interfacial tension with polypropylene higher than the interfacial tension of the polyethylene/polypropylene interface, wherein the one or more thermoplastics form discrete phases that are encapsulating each other, and wherein said discrete phases are comprised within the polypropylene phase of the co-continuous or highly-continuous blend or are located at the polyethylene/polypropylene interface. There is also provided a process for recycling a blend of thermoplastics comprising polyethylene, polypropylene and one or more other thermoplastics, the process comprising the step of melting and mixing the polyethylene, the polypropylene and the one or more other thermoplastics, thereby producing a polymeric material. | 01-29-2015 |
Patent application number | Description | Published |
20120283139 | METHOD OF DESIGNING ADDRESSABLE ARRAY SUITABLE FOR DETECTION OF NUCLEIC ACID SEQUENCE DIFFERENCES USING LIGASE DETECTION REACTION - The present invention is directed to a method of designing a plurality of capture oligonucleotide probes for use on a support to which complementary oligonucleotide probes will hybridize with little mismatch, where the plural capture oligonucleotide probes have melting temperatures within a narrow range. The first step of the method involves providing a first set of a plurality of tetramers of four nucleotides linked together, where (1) each tetramer within the set differs from all other tetramers in the set by at least two nucleotide bases, (2) no two tetramers within a set are complementary to one another, (3) no tetramers within a set are palindromic or dinucleotide repeats, and (4) no tetramer within a set has one or less or three or more G or C nucleotides. Groups of 2 to 4 of the tetramers from the first set are linked together to form a collection of multimer units. From the collection of multimer units, all multimer units formed from the same tetramer and all multimer units having a melting temperature in ° C. of less than 4 times the number of tetramers forming a multimer unit are removed to form a modified collection of multimer units. The modified collection of multimer units is arranged in a list in order of melting temperature. The order of the modified collection of multimer units is randomized in 2° C. increments of melting temperature. Alternating multimer units in the list are then divided into first and second subcollections, each arranged in order of melting temperature. After the order of the second subcollection is inverted, the first collection is linked in order to the inverted second collection to form a collection of double multimer units. From the collection of double multimer units, those units (1) having a melting temperature in ° C. less than 11 times the number of tetramers and more than 15 times the number of tetramers, (2) double multimer units with the same 3 tetramers linked together, and (3) double multimer units with the same 4 tetramers linked together with or without interruption are removed, to form a modified collection of double multimer units. The modified collection of double multimers can be immobilized on a support and used to capture, by hybridization, the products of a ligation detection reaction. As a result, the output of a ligation detection reaction, which is useful in detecting single-base changes, insertions, deletions, or translocations in a plurality of target nucleotide sequences, can be formatted on a support. | 11-08-2012 |
20130345072 | METHOD OF DESIGNING ADDRESSABLE ARRAY SUITABLE FOR DETECTION OF NUCLEIC ACID SEQUENCE DIFFERENCES USING LIGASE DETECTION REACTION - The present invention is directed to a method of designing a plurality of capture oligonucleotide probes for use on a support to which complementary oligonucleotide probes will hybridize with little mismatch, where the plural capture oligonucleotide probes have melting temperatures within a narrow range. The first step of the method involves providing a first set of a plurality of tetramers of four nucleotides linked together, where (1) each tetramer within the set differs from all other tetramers in the set by at least two nucleotide bases, (2) no two tetramers within a set are complementary to one another, (3) no tetramers within a set are palindromic or dinucleotide repeats, and (4) no tetramer within a set has one or less or three or more G or C nucleotides. Groups of 2 to 4 of the tetramers from the first set are linked together to form a collection of multimer units. From the collection of multimer units, all multimer units formed from the same tetramer and all multimer units having a melting temperature in ° C. of less than 4 times the number of tetramers forming a multimer unit are removed to form a modified collection of multimer units. The modified collection of multimer units is arranged in a list in order of melting temperature. The order of the modified collection of multimer units is randomized in 2° C. increments of melting temperature. Alternating multimer units in the list are then divided into first and second subcollections, each arranged in order of melting temperature. After the order of the second subcollection is inverted, the first collection is linked in order to the inverted second collection to form a collection of double multimer units. From the collection of double multimer units, those units (1) having a melting temperature in ° C. less than 11 times the number of tetramers and more than 15 times the number of tetramers, (2) double multimer units with the same 3 tetramers linked together, and (3) double multimer units with the same 4 tetramers linked together with or without interruption are removed, to form a modified collection of double multimer units. The modified collection of double multimers can be immobilized on a support and used to capture, by hybridization, the products of a ligation detection reaction. As a result, the output of a ligation detection reaction, which is useful in detecting single-base changes, insertions, deletions, or translocations in a plurality of target nucleotide sequences, can be formatted on a support. | 12-26-2013 |