公开(公告)号：US20150330537A1

公开(公告)日：2015-11-19

申请号：US14380133

申请日：2013-02-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke OTA ,  Akinori UEDA ,  Yuu KADOWAKI ,  Mayuko TAEDA ,  Masanori KITAICHI ,  Kazuhiro YAMAMURA ,  Michiko DOI ,  Shoji FUKUOKA

IPC: F16L11/04 ,  C08L27/16

CPC classification number: F16L11/04 ,  C08K3/04 ,  C08L27/12 ,  C08L27/16 ,  C08L45/02 ,  C08L2312/00 ,  F02M37/0017 ,  F02M37/16 ,  Y10T428/1386

Abstract: Provided is a fluororubber composition capable of providing a crosslinked fluororubber article that exhibits not only heat resistance, but also excellent mechanical properties at high temperatures. The fluororubber composition includes a fluororubber (A), a carbon black (B), and an aromatic petroleum resin (E), and the fluororubber composition has a difference δG′ (G′ (1%)−G′ (100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G′ (1%) denotes a shear modulus at a dynamic strain of 1%, G′ (100%) denotes a shear modulus at a dynamic strain of 100%, and G′ (1%) and G′ (100%) are determined by a dynamic viscoelasticity test carried out on an unvulcanised rubber with a rubber process analyzer (RPA) in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100° C.

Abstract translation: 本发明提供一种氟橡胶组合物，其能够提供不仅具有耐热性的交联氟橡胶制品，而且在高温下也具有优异的机械性能。 氟橡胶组合物包含氟橡胶（A），炭黑（B）和芳香族石油树脂（E），氟橡胶组合物的差δG'（G'（1％）-G'（100％）） （1％）表示动态应变为1％时的剪切模量，G'（100％）表示动态应变为100％时的剪切模量， 和G'（1％）和G'（100％）通过橡胶过程分析仪（RPA）在未硫化橡胶上进行的动态粘弹性试验测定，测量频率为1Hz，测量温度为 100°C

公开(公告)号：US20210070974A1

公开(公告)日：2021-03-11

申请号：US16771497

申请日：2018-12-13

Applicant: DAIKIN INDUSTRIES, LTD. ,  NISSIN CHEMICAL INDUSTRY CO., LTD.

Inventor： Katsuhide OHTANI ,  Masamichi SUKEGAWA ,  Kazuhiro YAMAMURA ,  Shoichi ARIMA ,  Takeshi FUKUZUMI ,  Yuji GAMA

IPC: C08L27/18

Abstract: A core-shell particle including a core containing a perfluoropolymer and a shell containing a non-fluorine resin, the core having a periphery coated with the non-fluorine resin at a coverage of 90% or more, the perfluoropolymer being a polymer containing a polymerized unit based on a perfluoro monomer in an amount of 90 mol % or more relative to all polymerized units, and the shell having a mass of 50 or less relative to a total mass of the core and the shell of 80. Also disclosed is a method for producing the core-shell particle.