摘要:
The invention provides a coating composition prepared by dissolving a fluorine-type copolymer in an organic solvent, the copolymer comprising:i) about 50 to about 90 mole % of a structural unit represented by the formula a)--CH.sub.2 --CF.sub.2 --ii) about 5 to about 30 mole % of a structural unit represented by the formula b)--CF.sub.2 --CF.sub.2 -- andiii) about 5 to about 30 mole % of a structural unit represented by the formula c)--CF.sub.2 --CFCl--
摘要:
The present invention provides a fluorinecontaining copolymer comprising at least one fluoroolefin and at least one cyclic unsaturated compound represented by the formulas (I) and (II) ##STR1## wherein each of n and m is 0 or a positive integer and preferably 0 or an integer of from 1 to 3, l is an integer of 3 or more than 3 and preferably 3 or 4, and R.sup.1 to R.sup.10 are the same or different and each represents a hydrogen atom, a halogen atom, a hydrocarbon group or a substituted hydrocarbon group and a method of preparing the same; and a fluorine-containing copolymer comprising at least one fluoroolefin, at least one cyclic unsaturated compound selected from the compounds of the above formulas (I) and (II) and at least one of mono and diolefins and a method of preparing the same.
摘要:
The present invention provides a carrier comprising a core and a coating for developing electrostatic images, the core being formed from a specific polymer composition.
摘要:
The invention provides: a fluorine-containing copolymer comprising methyl methacrylate and at least one long-chain fluoroalkyl methacrylate and having a light transmittance of about 90% or more; a method of preparing the copolymer; and an optical fiber using the copolymer as the cladding material.
摘要:
Disclosed are a carrier for developing electrostatic images, the carrier comprising a core and a coating on the core, the coating being formed from a copolymer comprising about 50 to about 90 mole % of vinylidene fluoride, about 5 to about 45 mole % of tetrafluoroethylene and about 1 to about 30 mole % of a fluorine-containing unsaturated polymerizable compound; and a carrier for developing electrostatic images, the carrier comprising a core and a coating on the core, the coating being formed from a copolymer comprising about 50 to about 90 mole % of vinylidene fluoride and about 50 to about 10 mole % of at least one fluorine-containing unsaturated polymerizable compound selected from the group consisting of trifluorochloroethylene, 1,1-dihydrohexafluoroisobutene, hexafluoropropylene, perfluoro(alkyl vinyl ether), trifluoroethylene and hexafluoroacetone.
摘要:
The invention provides an optical fiber comprising a cladding and a core wherein the cladding comprises a terpolymer comprising:(1) about 50 to about 90 mol. % of vinylidene fluoride,(2) about 8 to about 45 mol. % of trifluoroethylene and(3) about 2 to about 15 mol. % of hexafluoropropylene or perfluoro(alkylvinylether).
摘要:
This provides an antifouling coating composition comprising a photopolymerization initiator or thermal polymerization initiator and a fluorine-containing (meth)acrylate represented by the formula (1) ##STR1## wherein X is hydrogen atom, fluorine atom, chlorine atom or methyl, Y is alkylene having 1 to 3 carbon atoms, a group --CH.sub.2 CH.sub.2 N(R)SO.sub.2 -- (wherein R is alkyl having 1 to 4 carbon atoms), a group --CH.sub.2 CH(OZ)CH.sub.2 -- (wherein Z is a hydrogen atom or acetyl) or a group ##STR2## and Rf is fluoroalkyl having 6 to 15 carbon atoms or fluoroalkyl having 5 to 21 carbon atoms and containing 1 to 5 oxygen atoms in the carbon ring provided that the oxygen atoms are not present adjacent to one another.
摘要:
A resist material of positive type having a high sensitivity, a high resolving power and an excellent adhesion property to substrates, which comprises a copolymer of a fluoroalkyl acrylate having the general formula: ##STR1## wherein R.sub.1 is methyl group, ethyl group, a halogen-substituted methyl or ethyl group, a halogen atom or hydrogen atom, R.sub.2 is a bivalent hydrocarbon group having 1 to 6 carbon atoms, and R.sub.f is a fluoroalkyl group having 1 to 15 carbon atoms, with an acrylic comonomer selected from the group consisting of a glycidyl acrylate, an acrylic acid, an acrylamide and an .alpha.-cyanoacrylate.