摘要:
The present invention provides a perfluoro(poly)ether group containing silane compound which is able to form a layer having water-repellency, oil-repellency and antifouling property as well as high friction durability, and represented by the formula (1a) or the formula (1b): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒA - Rf - X - SiQ k Y 3-k –ª–ª–ª€ƒ€ƒ€ƒ€ƒ€ƒ(1a) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒY 3 - k Q k Si-X-Rf-X- SiQ k Y 3-k –ª–ª–ª€ƒ€ƒ€ƒ€ƒ€ƒ(1b) wherein A represents a C 1-16 alkyl which may be substituted by one or more fluorine atoms; Rf represents -(OC 9 F 8 ) a -(OC 3 F 6 ) b -(OC 2 F 4 ) c -(OCF 2 ) d -wherein a, b, c and d are each independently an integer of 0 or more and 200 or less, the sum of a, b, c and d is 1 or more and the occurrence order of the respective repeating units in parentheses with the subscript a, b, c or d is not limited in the formula; X represents a divalent organic group; Y represents, each independently at each occurrence, a hydroxyl group, a hydrolyzable group, or a hydrocarbon group; Q represents, each independently at each occurrence,-Z-SiR 1 n R 2 3 - n ; Z represents, each independently at each occurrence, a divalent organic group: with the proviso that Z is not a group which forms a siloxane bond together with a Si atom present in the end of a molecular backbone of the formula (1a) or the formula (1b), R 1 represents, each independently at each occurrence, a hydroxyl group or a hydrolyzable group; R 2 represents, each independently at each occurrence, a C 1-22 alkyl group or Q'; Q' has the same definition as that of Q; n is, each independently in each Q and Q', an integer selected from 0-3, and the total sum of n one or more; in Q, the number of Si atoms which are straightly linked via the Z group is up to five; k is an integer each independently selected from 1-3.
摘要:
The present invention provides a tetracarboxylic acid diester compound represented by the following general formula (1),
wherein, X 1 represents a tetravalent organic group, and R 1 represents a group represented by the following general formula (2),
wherein, the dotted line represents a bonding, Y 1 represents an organic group with a valency of k+1, Rs represents a group containing at least one silicon atom, "k" represents 1, 2 or 3, and "n" represents 0 or 1. There can be provided a tetracarboxylic acid diester compound which can lead a polymer of a polyimide precursor capable of using a base resin of a negative photosensitive resin composition which is capable of forming a fine pattern and giving high resolution, a polymer of a polyimide precursor obtained by using the tetracarboxylic acid diester compound and a method for producing the same.
摘要翻译:本发明提供由下述通式(1)表示的四羧酸二酯化合物,其中,X 1表示四价有机基团,R 1表示下述通式(2)表示的基团,其中,虚线表示 Y 1表示价数为k + 1的有机基团,R s表示含有至少一个硅原子的基团,“k”表示1,2或3,并且“n”表示0或1.可以提供 能够导出能够使用能够形成微细图案且高分辨率的负型感光性树脂组合物的基础树脂的聚酰亚胺前体的聚合物的四羧酸二酯化合物,使用该四羧酸得到的聚酰亚胺前体的聚合物 二酯化合物及其制备方法。
摘要:
A catalyst in solid particulate form free from an external carrier material comprising (i) a complex of formula (I)
wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from -R' 2 C-, -R' 2 C-CR' 2 -, -R' 2 Si-, -R' 2 Si-SiR' 2 -,-R' 2 Ge-, wherein each R' is independently a hydrogen atom, C 1-20 -alkyl, tri(C 1-20 -alkyl)silyl, C 6-20 -aryl, C 7-20 -arylalkyl or C 7-20 -alkylaryl; R 2 is a C 1-20 -hydrocarbyl radical; R 2' is a C 1-20 -hydrocarbyl radical; R 5 is a linear or branched aliphatic C 1-20 -hydrocarbyl group, SR 9 or OR 9 ; R 6' is a linear or branched aliphatic C 1-20 -hydrocarbyl group, SR 9' or OR 9' ; with the proviso that neither R 6 or R 6' represents a group having a quaternary carbon atom directly attached to the indenyl ring; R 9 is a C 1-20 -hydrocarbyl group; R 9' is a C 1-20 -hydrocarbyl group; Ar is a C 6-12 -aryl or C 5-12 -heteroaryl group optionally carrying one or more substituents R 8 ; Ar' is a C 6-12 -aryl or C 5-12 -heteroaryl group optionally carrying one or more substituents R 8' ; each R 8 is a C 1-20 -hydrocarbyl group; each R 8' is a C 1-20 -hydrocarbyl group; wherein at least two of R 2 and R 2' ; R 6 and R 6' ; or Ar and Ar' are the same; and (ii) a cocatalyst comprising a compound of a group 13 metal, e.g. A1 or boron.
摘要:
The present specification describes a multicyclic aromatic ring compound having a novel structure and an organic light emitting device using the same.
摘要:
The present invention relates to a novel transition metal compound, a catalyst composition comprising the transition metal compound, and a method of preparing polyolefin using the catalyst composition.
摘要:
The present invention relates to a new compound of formula wherein the variables have the meaning as indicated in the claims; or an enantiomer or salt thereof. The compounds of formula (I) are useful in the control of parasites, in particular endoparasites, in and on vertebrates.
摘要:
The present invention relates to compound (I) or a salt thereof which has a RORγt inhibitory action. In the formula (I), each symbol is as defined in the specification.
摘要:
Compounds that have agonist activity at one or more of the S1P receptors are provided. The compounds are sphingosine analogs that, after phosphorylation, can behave as agonists at S1P receptors.