摘要:
A partially-fluorinated surfactant having internal methylene groups and having the formula R.sub.f --(CH.sub.2).sub.m --R'.sub.f --COOM wherein m is 1-3, R.sub.f is perfluoroalkyl or perfluoroalkoxy, containing 3-8 carbon atoms, R'.sub.f is linear or branched perfluoroalkylene containing 1-4 carbon atoms, and M is NH.sub.4, Li, Na, K, or H is useful in polymerization of fluorinated monomers. High molecular weight can be achieved in homopolymerization of tetrafluoroethylene.
摘要:
This invention concerns novel fluorine-containing diamines, polyamides and polyimides. The compounds are useful in the formation of moisture resistant films, fibers and shaped articles.
摘要:
Liquid Crystal Display Devices having alignment layers of polyimides which are characterized by pendant perfluorinated chains, preferably linear, and having more than 6 perfluorinated carbon atoms. These alignment layers are capable to provide the Liquid Crystal Display Devices with stable tilt angles of 5 or more degrees.
摘要:
This invention relates to optical elements capable of second harmonic generation and novel compositions for use in such optical elements comprising polar molecules placed in noncentrosymmetric configuration wherein such optical element has an electron donor moiety linked through a conjugated bonding moiety to an electron acceptor moiety which consists of a selected fluorinated sulfone, fluorinated ketone, fluorinated vinyl sulfone or fluorinated alkyl vinyl sulfone.
摘要:
Polymers comprising fluorine-containing poly(ether sulfones) and monomers comprising aromatic fluorine-containing sulfones used in the preparation of these polymers.
摘要:
The present invention concerns the design of an environmentally friendly and efficient fluorous phase based on dendritic architectures containing short semifluorinated groups on their periphery.
摘要:
The invention provides a polymer having (a) at least one repeat unit derived from an ethylenically unsaturated compound having at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and (b) at least one repeat unit derived from an ethylenically unsaturated cyclic compound of structure: (I) wherein n is 0, 1, or 2; and R2 to R4 are independently H; C1-C10 alkyl or alkoxy, optionally substituted by halogen or ether oxygens; or C6-C20 aryl. These polymers can be used in making photoresist compositions and coated substrates.
摘要翻译:本发明提供了一种聚合物,其具有(a)至少一种衍生自具有至少一个与烯属不饱和碳原子共价连接的氟原子的烯属不饱和化合物的重复单元; 和(b)衍生自以下结构的烯属不饱和环状化合物的至少一个重复单元:(I)其中n为0,1或2; R 2和R 4独立地是H; C 1 -C 10烷基或烷氧基,任选被卤素或醚氧取代; 或C 6 -C 20芳基。 这些聚合物可用于制备光致抗蚀剂组合物和涂覆的基材。
摘要:
This invention provides novel fluorine containing polymers which comprise at least one fluorinated olefin, at least one polycyclic ethylenically unsaturated monomer with a fused 4-membered carbocyclic ring and, optionally, other components. The polymers are useful for photoimaging compositions and, in particular, photoresist compositions (positive-working and/or negative-working) for imaging in the production of semiconductor devices. The polymers are especially useful in photoresist compositions having high UV transparency (particularly at short wavelengths, e.g., 157 nm) which are useful as base resins in resists and potentially in many other applications.
摘要:
The invention relates to a photoresist composition having a protecting group and a protected material incorporated in a cyclic chemical structure. In this invention a protected material has a cyclic ether group or cyclic ester group as a protecting group. A specific example of a cyclic ether group is an alkylene oxide, such as an oxetane group, substituted with one or more fluorinated alkyl groups. A specific example of a cyclic ester is a lactone which may be substituted with methyl groups. The photoresist composition further includes a photoactive component. The photoresist composition of this invention has a high transparency to ultraviolet radiation, particularly at short wavelengths such as (193) nm and (157) nm.
摘要:
Highly fluorinated aryloxyfluoroether esters, acids and alcohols, which are intermediates in the production of vinyl monomers, are provided. Also provided is a process for making aryloxyfluoroether esters by the base catalyzed addition of hydroxyaromatic compounds to perfluorovinylether esters.