公开(公告)号：US20170008988A1

公开(公告)日：2017-01-12

申请号：US15119204

申请日：2015-02-16

Applicant: KURARAY CO., LTD.

Inventor： Takeshi KUSUDOU ,  Yoshiaki ASANUMA ,  Kazuki TOKUCHI ,  Yuhi SHIMAZUMI

IPC: C08F216/38 ,  C04B35/634 ,  C09D5/24 ,  C04B41/80 ,  C08F18/08 ,  C08F16/06 ,  C04B41/00 ,  H01B1/22 ,  C08K3/08

CPC classification number: C08F216/38 ,  C04B35/4682 ,  C04B35/634 ,  C04B35/6342 ,  C04B41/0054 ,  C04B41/009 ,  C04B41/80 ,  C08F8/12 ,  C08F8/28 ,  C08F16/06 ,  C08F16/38 ,  C08F18/08 ,  C08F218/08 ,  C08F2500/17 ,  C08F2800/10 ,  C08F2800/20 ,  C08K3/08 ,  C08K2003/0862 ,  C08K2201/001 ,  C09D5/24 ,  H01B1/22 ,  C08F118/08 ,  C08F216/06

Abstract: There is provided a binder for ceramic formation or a conductive paste, comprising polyvinyl acetal having a degree of acetalization of from 50 to 85 mol %, a content of vinyl ester monomer unit of from 0.1 to 20 mol %, and having a viscosity-average degree of polymerization of from 200 to 5000, wherein a peak-top molecular weight (A) as measured by a differential refractive index detector and a peak-top molecular weight (B) as measured by an absorptiometer (measurement wavelength: 280 nm) in gel permeation chromatographic measurement of the polyvinyl acetal heated at 230° C. for 3 hours satisfy a formula (1) (A−B)/A

Abstract translation: 提供了一种用于陶瓷形成的粘合剂或导电性糊剂，其包含缩醛化度为50〜85摩尔％的聚乙烯醇缩醛，乙烯基酯单体单元的含量为0.1〜20摩尔％，粘度平均 聚合度为200至5000，其中通过差示折射率检测器测量的峰顶分子量（A）和通过吸光光度计（测量波长：280nm）测量的峰顶分子量（B）在 在230℃下加热3小时的聚乙烯醇缩醛的凝胶渗透色谱测定满足式（1）（A-B）/ A <0.60，聚乙烯醇缩醛的峰顶分子量（B） 从0.50×10-3到1.00×10-2。

公开(公告)号：US20210394494A1

公开(公告)日：2021-12-23

申请号：US17279316

申请日：2019-09-25

Applicant: KURARAY CO., LTD.

Inventor： Yuhi SHIMAZUMI ,  Takeshi KUSUDOU ,  Koichiro ISOUE ,  Hirotaka YASUDA ,  Takuya KOBAYASHI

IPC: B32B17/10 ,  C08F16/38 ,  C08J5/18

Abstract: The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein the polyvinyl acetal resin film has a thickness of 10 to 350 μm, one surface has a 10-point average roughness Rz value of less than 2 μm and a friction angle of larger than 31° but 40° or smaller, the other surface has a 10-point average roughness Rz value of 2 μm to 7 μm and a friction angle of 20° to 31°, a viscosity of a toluene/ethanol (1:1, mass ratio) solution containing 10%-by-mass of a polyvinyl acetal resin contained in the polyvinyl acetal resin material, which is measured at 20° C. and 30 rpm using a Brookfield-type (B-type) viscometer, is 100 to 1,000 mPa·s, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.

公开(公告)号：US20160032131A1

公开(公告)日：2016-02-04

申请号：US14881826

申请日：2015-10-13

Applicant: KURARAY CO., LTD.

Inventor： Yuhi SHIMAZUMI

IPC: C09D129/04

CPC classification number: C09D129/04 ,  C04B35/4682 ,  C04B35/6342 ,  C04B2235/3236 ,  C08F116/06 ,  C08F216/38 ,  C08K3/22 ,  C08K5/01 ,  C08K2003/2241 ,  H01G4/12 ,  H01G4/30

Abstract: A slurry composition, including: a polyvinyl acetal resin; a ceramic powder; and an organic solvent. The polyvinyl acetal resin has a degree of polymerization of from 200 to 6000, a content percentage of vinylester unit of from 0.01 to 30 mol %, and a degree of acetalization of from 55 to 83 mol %. The polyvinyl acetal resin has a structural unit of formula (1) in the molecule:

Abstract translation: 一种浆料组合物，包括：聚乙烯醇缩醛树脂; 陶瓷粉 和有机溶剂。 聚乙烯醇缩醛树脂的聚合度为200〜6000，乙烯基酯单元的含有率为0.01〜30摩尔％，缩醛化度为55〜83摩尔％。 聚乙烯醇缩醛树脂在分子中具有式（1）的结构单元：