公开(公告)号：US11225676B2

公开(公告)日：2022-01-18

申请号：US16670042

申请日：2019-10-31

Applicant: KANEKA CORPORATION

Inventor： Shingo Kobayashi ,  Rina Aoki ,  Tetsuya Minami ,  Hisashi Arikawa ,  Keiji Matsumoto

IPC: C12P7/62 ,  C12N9/10 ,  C08G63/06 ,  C12N9/88 ,  C12N15/09 ,  C08L101/16

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.

公开(公告)号：US10519473B2

公开(公告)日：2019-12-31

申请号：US15129726

申请日：2015-03-27

Applicant: KANEKA CORPORATION

Inventor： Shingo Kobayashi ,  Rina Aoki ,  Tetsuya Minami ,  Hisashi Arikawa ,  Keiji Matsumoto

IPC: C12P7/62 ,  C12N9/10 ,  C12N9/88

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.

公开(公告)号：US10093799B2

公开(公告)日：2018-10-09

申请号：US15645232

申请日：2017-07-10

Applicant: Kaneka Corporation

Inventor： Tetsuya Minami ,  Noriyuki Suzuki

IPC: C08K5/05 ,  C08L67/04

Abstract: A polyester resin composition includes: a polylactic acid; a poly(3-hydroxyalkanoate); pentaerythritol; and a silicate. In the polyester resin composition, an amount of the polylactic acid is from 55 to 75 parts by weight, and an amount of the poly(3-hydroxyalkanoate) (B) is from 25 to 45 parts by weight, with respect to 100 parts by weight of a total amount of the polylactic acid and the poly(3-hydroxyalkanoate); an amount of the pentaerythritol is from 0.05 to 20 parts by weight with respect to 100 parts by weight of the total amount of the polylactic acid and the poly(3-hydroxyalkanoate); and an amount of the silicate is from 10 to 40 parts by weight with respect to 100 parts by weight of the total amount of the polylactic acid and the poly(3-hydroxyalkanoate).

公开(公告)号：US09732443B2

公开(公告)日：2017-08-15

申请号：US14915648

申请日：2014-07-16

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  KANEKA CORPORATION

Inventor： Takeshi Kikutani ,  Wataru Takarada ,  Noriyuki Suzuki ,  Tetsuya Minami ,  Takahiko Sugaya

IPC: C08G63/02 ,  D01F6/84 ,  D01F6/62 ,  B29C47/88 ,  C08G63/06 ,  B29C47/00 ,  B29K67/00 ,  B29L31/00

CPC classification number: D01F6/84 ,  B29C47/0014 ,  B29C47/8805 ,  B29K2067/00 ,  B29L2031/731 ,  C08G63/06 ,  C08G2230/00 ,  D01F6/625 ,  D10B2331/041 ,  D10B2401/063 ,  D10B2401/12 ,  D10B2401/20

Abstract: An object of the present invention is to improve spinnability, productivity, and tensile strength of a polyester fiber containing poly(3-hydroxybutyrate-co-3-hydroxyhexanoate).By spinning the polyester resin containing the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) at a high spinning velocity, the spinnability, productivity, and tensile strength of the polyester fiber can be improved.

公开(公告)号：US09670358B2

公开(公告)日：2017-06-06

申请号：US14767144

申请日：2014-01-16

Applicant: KANEKA CORPORATION

Inventor： Tetsuya Minami ,  Noriyuki Suzuki

IPC: C08L67/04 ,  C08K5/053 ,  C08L51/04

CPC classification number: C08L67/04 ,  C08K5/053 ,  C08L51/04

Abstract: Disclosed herein is an aliphatic polyester resin composition that simultaneously improves slow crystallization, low impact strength, and low tensile elongation that are the drawbacks of a polyhydroxyalkanoate.The aliphatic polyester resin composition comprises: a polyhydroxyalkanoate (A); a graft copolymer (B); and pentaerythritol (C), wherein the graft copolymer (B) is obtained by graft polymerization of a vinyl-based monomer onto at least one rubber selected from the group consisting of a composite rubber (b1) comprising a polyorganosiloxane component and a polyalkyl(meth)acrylate component, an acrylic rubber (b2), and a diene-based rubber (b3) comprising a diene-based monomer.

公开(公告)号：US20150252186A1

公开(公告)日：2015-09-10

申请号：US14435297

申请日：2013-10-10

Applicant: KANEKA CORPORATION

Inventor： Noriyuki Suzuki ,  Tetsuya Minami

IPC: C08L67/04

CPC classification number: C08K5/053 ,  C08L23/0853 ,  C08L23/0861 ,  C08L31/04 ,  C08L67/04 ,  C08L2201/06

Abstract: An object is to improve both slow crystallization and brittleness that are drawbacks of polyhydroxyalkanoates, so that processability in mold processing, such as injection molding, is improved, processing speed is increased, and ductility is imparted to a resulting molded article. Provided is an aliphatic polyester resin composition including a polyhydroxyalkanoate (A), an ethylene-vinyl acetate copolymer resin (B), and pentaerythritol (C), wherein the ethylene-vinyl acetate copolymer resin (B) has a vinyl acetate content of 65 to 95 wt %, and the polyhydroxyalkanoate (A) and the ethylene-vinyl acetate copolymer resin (B) are compatible.

Abstract translation: 其目的在于改善作为聚羟基链烷酸酯缺点的缓慢结晶和脆性，从而提高了模塑加工中的加工性能，例如注射成型，提高了加工速度，并赋予了所得模塑制品的延展性。 本发明提供包含聚羟基链烷酸酯（A），乙烯 - 乙酸乙烯酯共聚物树脂（B）和季戊四醇（C）的脂肪族聚酯树脂组合物，其中乙烯 - 乙酸乙烯酯共聚物树脂（B）的乙酸乙烯酯含量为65〜 95重量％，聚羟基链烷酸酯（A）和乙烯 - 乙酸乙烯酯共聚物树脂（B）相容。

公开(公告)号：US11459436B2

公开(公告)日：2022-10-04

申请号：US16937654

申请日：2020-07-24

Applicant: KANEKA CORPORATION

Inventor： Tetsuya Minami

IPC: C08J9/20 ,  C08J9/22 ,  C08J9/06

Abstract: Provided are poly(3-hydroxyalkanoate) foam particles, which can give a foam molded article having good surface aspects and a low shrinkage ratio of a molding, and the foam molded article. The poly(3-hydroxyalkanoate) foam particles have at least two melting peaks on a DSC curve obtained by differential scanning calorimetry and in which a melting calorie (X) on a high temperature side is 0.1 to 20 J/g, a gel fraction (Y) is 20 to 75% by weight, and the melting calorie (X) and the gel fraction (Y) satisfy Formula: X+Y≥30.

公开(公告)号：US09765198B2

公开(公告)日：2017-09-19

申请号：US14892149

申请日：2014-03-26

Applicant: KANEKA CORPORATION

Inventor： Ryohei Koyama ,  Tetsuya Minami ,  Noriyuki Suzuki

IPC: C08K5/053 ,  C08K5/103 ,  C08L101/16

CPC classification number: C08K5/053 ,  C08K5/103 ,  C08L101/16 ,  C08L67/02

Abstract: Provided is a resin composition excellent in processability and productivity, which improves low crystallization rate and improves processability in forming such as injection molding or sheet forming. Provided is a polyester resin composition including a polyester resin (A), a crystallization promoter (B), and pentaerythritol (C).

公开(公告)号：US09475934B2

公开(公告)日：2016-10-25

申请号：US14419414

申请日：2013-07-11

Applicant: KANEKA CORPORATION ,  RIKEN

Inventor： Hideki Abe ,  Noriyuki Suzuki ,  Tetsuya Minami ,  Nobuo Nakamura

IPC: C08L67/04 ,  C08K5/053 ,  C08G63/06 ,  C08G63/08

CPC classification number: C08L67/04 ,  C08G63/06 ,  C08G63/08 ,  C08K5/053

Abstract: An object is to increase crystallization speed, which is a drawback of polyhydroxyalkanoate, to improve processability in processing such as injection molding or blow molding and increase the speed of processing and is, in addition, to refine the crystal of polyhydroxyalkanoate to suppress a change of mechanical properties with passage of time of a resulting molded article. Disclosed herein is a polyester resin composition containing polyhydroxyalkanoate and pentaerythritol.

Abstract translation: 目的是提高结晶速度，这是聚羟基链烷酸酯的缺点，以提高加工中的加工性能，例如注射成型或吹塑成型，并提高加工速度，此外，为了改善聚羟基链烷酸酯的结晶以抑制 机械性能随着所得模塑制品的时间流逝。 本文公开了含有聚羟基链烷酸酯和季戊四醇的聚酯树脂组合物。

公开(公告)号：US09221972B2

公开(公告)日：2015-12-29

申请号：US14410895

申请日：2013-06-13

Applicant: KANEKA CORPORATION

Inventor： Tetsuya Minami ,  Kenichiro Nishiza ,  Noriyuki Suzuki

IPC: C08L67/04 ,  C08L31/04 ,  B29C47/00

CPC classification number: C08L67/04 ,  C08L2201/06 ,  C08L31/04

Abstract: A poly-3-hydroxyalkanoate resin composition having excellent ductility and transparency, and a molded article thereof. The poly-3-hydroxyalkanoate resin composition includes: a poly-3-hydroxyalkanoate resin (A); and an ethylene-vinyl acetate copolymer resin (B) having a vinyl acetate content of 65 to 95 wt %, wherein the resin (A) and the resin (B) are miscible and a ratio of resin (A)/resin (B) is 90/10 to 55/45 (wt/wt). The molded article is produced using such a poly-3-hydroxyalkanoate resin composition.

Abstract translation: 具有优异的延展性和透明性的聚-3-羟基链烷酸酯树脂组合物及其成型品。 聚-3-羟基链烷酸酯树脂组合物包括：聚-3-羟基链烷酸酯树脂（A）; 和乙酸乙烯酯含量为65〜95重量％的乙烯 - 乙酸乙烯酯共聚物树脂（B），其中树脂（A）和树脂（B）是可混溶的，树脂（A）/树脂（B）的比例 为90/10〜55/45（wt / wt）。 使用这种聚-3-羟基链烷酸酯树脂组合物制造模塑制品。