公开(公告)号：US20210139652A1

公开(公告)日：2021-05-13

申请号：US16612001

申请日：2018-04-26

Applicant: DAICEL CORPORATION

Inventor： Hiroto MIYAKE ,  Naoko TSUJI ,  Akira YAMAKAWA

IPC: C08G77/42 ,  C09D183/06 ,  C08G77/14 ,  C08G59/32 ,  C08G59/38 ,  H01L23/29

Abstract: The present invention provides an insulating film forming composition that excels in insulating properties and heat resistance, suppresses the occurrence of warpage, and can form an insulating film with excellent adhesion. The insulating film forming composition of the present invention contains, as a polymerizable compound, a polyorganosilsesquioxane containing siloxane constituent units; wherein the total content of: constituent units represented by formula (I) [RaSiO3/2] (I) and constituent units represented by formula (II) [RaSiO2/2(ORb)] (II) is greater than or equal to 55 mol % of the total amount of the siloxane constituent units; and the polyorganosilsesquioxane has a number average molecular weight of from 500 to 10000 and an epoxy equivalent of from 200 to 2000 g/eq.

公开(公告)号：US20180171193A1

公开(公告)日：2018-06-21

申请号：US15737229

申请日：2016-06-13

Applicant: DAICEL CORPORATION

Inventor： Hiroki TANAKA ,  Naoko TSUJI ,  Akira YAMAKAWA

IPC: C09J183/12 ,  C09J183/04 ,  C08L83/04 ,  B32B27/28 ,  C08L83/12

CPC classification number: C09J183/12 ,  B32B27/283 ,  C08G77/045 ,  C08K5/17 ,  C08K5/34 ,  C08L83/04 ,  C08L83/06 ,  C08L83/12 ,  C09J183/04 ,  C09J183/06 ,  C08K5/5435

Abstract: Provided is a curable composition that can, when cured, form a cured product having adhesiveness and adhesion to an adherend at excellent levels. The curable composition contains a polyorganosilsesquioxane and one of (A) a compound represented by Formula (X); and (B) a polymerization stabilizer, where Formula (X) is expressed as follows: wherein r1 represents an integer from 4 to 20; L represents a group containing epoxy, oxetanyl or vinyl ether group; R11 and R12 each represent an optionally substituted hydrocarbon group; s1 represents an integer from 1 to 3; t1 represents an integer from 0 to 2, where s1 plus t1 equals 3; and R13 and R14 are selected from hydrogen and an optionally substituted hydrocarbon group. The polyorganosilsesquioxane has a number-average molecular weight of 1000 to 3000 and a molecular-weight dispersity of 1.0 to 3.0, includes a constitutional unit represented by Formula (1), has a ratio of a constitutional unit represented by Formula (I) to a constitutional unit represented by Formula (II) of 5 or more, and has a total proportion of the constitutional unit represented by Formula (1) and a constitutional unit represented by Formula (4) of 55 to 100 mole percent of all siloxane constitutional units. [R1SiO3/2] (1), [RaSiO3/2] (I), [RbSiO2/2(ORc)] (II), [R1SiO2/2(ORc)] (4), where R1 represents an epoxy-containing group; Ra and Rb are each selected from an epoxy-containing group, substituted or unsubstituted aryl, substituted or unsubstituted aralkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, and hydrogen; and Rc is selected from hydrogen and C1-C4 alkyl.

公开(公告)号：US20200148926A1

公开(公告)日：2020-05-14

申请号：US16614146

申请日：2018-05-16

Applicant: DAICEL CORPORATION

Inventor： Akira YAMAKAWA ,  Naoko TSUJI

IPC: C09J183/04 ,  C08G77/04 ,  B32B7/12 ,  C09J11/06 ,  C09J5/06

Abstract: The present invention is to provide a curable composition for adhesive agents that cures at a low temperature and that can form a cured article having excellent heat resistance, crack resistance, and adhesive properties and tight bonding properties for adhereds. The present invention provides a curable composition for adhesive agents containing a polyorganosilsesquioxane (A) having a constituent unit represented by Formula (1) below; a mole ratio of a constituent unit represented by Formula (I) below to a constituent unit represented by Formula (II) below (constituent unit represented by Formula (I)/constituent unit represented by Formula (II)) being from 20 to 500; a proportion of the constituent unit represented by Formula (1) below and a constituent unit represented by Formula (4) below being from 55 to 100 mol % relative to a total amount (100 mol %) of siloxane constituent units; a number average molecular weight being from 2500 to 50000; and a molecular weight dispersity (weight average molecular weight/number average molecular weight) being from 1.0 to 4.0.

公开(公告)号：US20210358867A1

公开(公告)日：2021-11-18

申请号：US17286712

申请日：2019-10-18

Applicant: DAICEL CORPORATION

Inventor： Naoko TSUJI ,  Akira YAMAKAWA ,  Katsuhiko SUMITA

IPC: H01L23/00 ,  H01L25/065 ,  H01L23/48 ,  H01L21/768 ,  H01L25/00

Abstract: Provided is a method suitable for efficiently manufacturing a semiconductor device while preventing warpage of the wafer laminate in manufacturing a semiconductor device in which semiconductor elements are multilayered through laminating wafers in which the semiconductor elements are fabricated. The method includes at least: preparing a plurality of first wafer laminates each having a laminate configuration including a first and second wafers each having an element forming surface and a back surface opposite from the element forming surface, the laminate configuration wherein the element forming surface sides of the first and second wafers are bonded to each other; thinning the first wafer of the first wafer laminate to form a first wafer laminate having the thinned first wafer; and bonding the thinned first wafer sides of two first wafer laminates having undergone the thinning to each other to form a second wafer laminate.

公开(公告)号：US20200071579A1

公开(公告)日：2020-03-05

申请号：US16614023

申请日：2018-05-16

Applicant: DAICEL CORPORATION

Inventor： Akihiro SHIBAMOTO ,  Shinji MAETANI ,  Kazuhiro NISHIDA ,  Daisuke USA ,  Akira YAMAKAWA ,  Naoko TSUJI

IPC: C09J183/06 ,  C09J5/06 ,  C09J11/06 ,  C08G77/04 ,  C08K5/00 ,  B32B7/12

Abstract: Provided is an adhesive composition that can be cured at low temperatures and can form a cured product having excellent insulating property, heat resistance, and adhesiveness. The adhesive composition according to the present invention includes polyorganosilsesquioxane (A) including a constituent unit represented by Formula (1) below, R1SiO3/2(1), in Formula (1), R1 represents a group containing a radically polymerizable group. In the polyorganosilsesquioxane (A), a proportion of the constituent unit represented by Formula (1) and a constituent unit represented by the following Formula (2), relative to a total amount (100 mol %) of siloxane constituent units, is from 55 to 100 mol %, R1SiO2/2(OR2) (2), in Formula (2), R1 is as defined above, and R2 is a hydrogen atom or an alkyl group having from 1 to 4 carbons. The polyorganosilsesquioxane (A) has a number average molecular weight from 1500 to 50000 and a molecular weight dispersity (weight average molecular weight/number average molecular weight) from 1.0 to 4.0.

公开(公告)号：US20180163049A1

公开(公告)日：2018-06-14

申请号：US15736078

申请日：2016-06-07

Applicant: DAICEL CORPORATION

Inventor： Naoko TSUJI ,  Hiroki TANAKA ,  Akira YAMAKAWA ,  Akihiro SHIBAMOTO ,  Nobuhiko HARADA

IPC: C08L83/06 ,  C08G59/32 ,  C09J7/35 ,  C09J11/04 ,  C09J183/06 ,  B32B7/12 ,  B32B27/28 ,  B32B37/14

CPC classification number: C08L83/06 ,  B32B7/12 ,  B32B27/283 ,  B32B37/142 ,  B32B2037/1253 ,  B32B2250/03 ,  B32B2305/72 ,  B32B2383/00 ,  C08G59/32 ,  C08G77/045 ,  C08G77/14 ,  C08L2205/025 ,  C09J7/20 ,  C09J7/35 ,  C09J11/04 ,  C09J11/06 ,  C09J183/06 ,  C08L83/00

Abstract: Provided is a curable composition having excellent film-formability and can be cured at low temperatures to form a cured product that has heat resistance, cracking resistance, and adhesiveness and adhesion to an adherend at excellent levels. The curable composition according to the present invention is a composition containing polyorganosilsesquioxanes (A). The polyorganosilsesquioxanes (A) include (a-1) an epoxy-containing polyorganosilsesquioxane having a weight-average molecular weight of 3000 or more, and (a-2) an epoxy-containing polyorganosilsesquioxane having a weight-average molecular weight of 2500 or less. The polyorganosilsesquioxanes (A) contain the components (a-1) and (a-2) in a total content of 50 weight percent or more of the total amount of the polyorganosilsesquioxanes (A). The polyorganosilsesquioxanes (A) have a ratio in content (weight ratio) of (a-1) to (a-2) of from 10:90 to 70:30.

公开(公告)号：US20170240429A1

公开(公告)日：2017-08-24

申请号：US15521669

申请日：2015-08-31

Applicant: DAICEL CORPORATION

Inventor： Akira YAMAKAWA

IPC: C01B31/02 ,  C07C61/125 ,  C07C51/305

CPC classification number: C07C61/125 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/25 ,  C01B32/28 ,  C07C51/305 ,  C07C2603/90

Abstract: A nanodiamond according to the present invention has acidic functional groups, contains the acidic functional groups in a number density of 1 or more per square nanometer in the nanodiamond surface, and has a specific surface area of 150 m2/g or more. Particles of the nanodiamond preferably have a D50 (median diameter) of 9 nm or less. The nanodiamond is preferably derived from a nanodiamond synthesized by a detonation technique (in particular, an air-cooling detonation technique).