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1.发明申请公开(公告)号：US20170198313A1
公开(公告)日：2017-07-13
申请号：US15129726
申请日：2015-03-27
Applicant: KANEKA CORPORATION
Inventor： Shingo KOBAYASHI , Rina AOKI , Tetsuya MINAMI , Hisashi ARIKAWA , Keiji MATSUMOTO
CPC classification number: C12P7/625 , C08G63/06 , C08L101/16 , C12N9/1025 , C12N9/1029 , C12N9/88 , C12N15/09 , C12Y203/01 , C12Y402/01017
Abstract: A PHA copolymer which is slowly crystallized is improved in crystallization speed to improve the melt workability of the PHA copolymer in working such as injection molding, film molding, blow molding, fiber spinning, extrusion foaming or bead foaming, thereby improving the resultant articles in productivity. A method for the improvement is a method for producing a PHA mixture, including the step of culturing a microorganism having both of a gene encoding a PHA synthase that synthesizes a copolymer PHA (A) and that is derived from the genus Aeromonas, and a gene encoding a PHA synthase that synthesizes a PHA (B) different in melting point from the copolymer PHA (A) by 10° C. or more to produce, in a cell of the microorganism, two or more PHAs different in melting point from one another by 10° C. or more simultaneously.
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2.发明申请公开(公告)号：US20200087687A1
公开(公告)日：2020-03-19
申请号：US16616276
申请日：2018-05-23
Applicant: KANEKA CORPORATION
Inventor： Rina AOKI , Shunsuke SATO
Abstract: Provided are a PHA-producing microorganism producing a higher molecular weight PHA and a PHA production method using the PHA-producing microorganism. A PHA-producing microorganism including a gene encoding a PHA synthetase derived from genus Aeromonas, in which at least a portion of a PHA degrading enzyme gene is altered by substitution, deletion, insertion, and/or addition to reduce or eliminate activity of a PHA degrading enzyme encoded by the gene, and further a glycerol kinase activity is enhanced.
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3.发明申请公开(公告)号：US20200056214A1
公开(公告)日：2020-02-20
申请号：US16670042
申请日：2019-10-31
Applicant: KANEKA CORPORATION
Inventor： Shingo KOBAYASHI , Rina AOKI , Tetsuya MINAMI , Hisashi ARIKAWA , Keiji MATSUMOTO
Abstract: A PHA copolymer which is slowly crystallized is improved in crystallization speed to improve the melt workability of the PHA copolymer in working such as injection molding, film molding, blow molding, fiber spinning, extrusion foaming or bead foaming, thereby improving the resultant articles in productivity. A method for the improvement is a method for producing a PHA mixture, including the step of culturing a microorganism having both of a gene encoding a PHA synthase that synthesizes a copolymer PHA (A) and that is derived from the genus Aeromonas, and a gene encoding a PHA synthase that synthesizes a PHA (B) different in melting point from the copolymer PHA (A) by 10° C. or more to produce, in a cell of the microorganism, two or more PHAs different in melting point from one another by 10° C. or more simultaneously.
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公开(公告)号：US20170198136A1
公开(公告)日：2017-07-13
申请号：US15129444
申请日：2015-03-27
Applicant: KANEKA CORPORATION
Inventor： Tetsuya MINAMI , Shingo KOBAYASHI , Rina AOKI , Noriyuki SUZUKI
CPC classification number: C08L67/04 , B29B9/065 , B29B9/12 , B29C48/022 , B29C48/08 , B29C48/30 , B29C48/305 , B29C48/914 , B29K2067/00 , B29L2007/002 , C08L2205/025 , C08L2205/06 , C12N15/09 , C12P7/42 , C12P7/625
Abstract: The purpose of the present invention is to improve processability in the melt-molding by improving the slowness of crystallization that is a disadvantage of polyhydroxyalkanoate, which is slow to crystallize, and to improve processing speed. Provided is a polyester resin composition including a first polyhydroxyalkanoate and a second polyhydroxyalkanoate, wherein the melting point of the second polyhydroxyalkanoate in the polyester resin composition is observed at a temperature lower than the melting point measured for the second polyhydroxyalkanoate alone.
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