摘要:
This invention provides (i) novel hexafluoroneopentyl alcohol, (ii) its derivatives, i.e., hexafluoroneopentyl (meth)acrylate, (iii) fluorinated polymers comprising said acrylate as the monomer component, and (iv) optical materials comprising said fluorinated polymers.
摘要:
This invention provides (i) novel hexafluoroneopentyl alcohol, (ii) its derivatives, i.e., hexafluoroneopentyl (meth)acrylate, (iii) fluorinated polymers comprising said acrylate as the monomer component, and (iv) optical materials comprising said fluorinated polymers.
摘要:
Disclosed are an acryloxyorganosiloxane polymer having a structural unit represented by the formula (1): ##STR1## wherein X.sup.1 is chlorine atom or fluorine atom, X.sup.2 and X.sup.3 are the same or different and each represent hydrogen atom or a group --CH.sub.2 (CF.sub.2).sub.p CF.sub.3 (wherein p is 0 or an integer of 1 to 5), Y is oxygen atom or --NH-- group, m is 0 or an integer of 1 to 5 and n is 0 or an integer of 1 to 5; an acryloxyorganosiloxane polymer further having a structural unit represented by the following formula (2) in an amount of not more than 50% by weight based on the combined weight of the structural unit of the formula (1) and the structural unit of the formula (2): ##STR2## wherein X.sup.4 is hydrogen atom, chlorine atom, fluorine atom, alkyl group having 1 to 3 carbon atoms or fluoroalkyl group having 1 to 3 carbon atoms, R is alkyl group having 1 to 20 carbon atoms or fluoroalkyl group having 1 to 20 carbon atoms (with the proviso that oxygen atom may be contained in the carbon atom chain); and a gas separating membrane prepared from the polymer having the structural unit of the formula (1) or a combination of structural unit of the formula (1) and not more than 50% by weight of structural unit of the formula (2).
摘要:
Disclosed are a gas separating membrane prepared from a polymer from a monomer represented by the formula (1): ##STR1## wherein X is chlorine atom or fluorine atom, Y is hydrogen atom or methyl group, and m is 0 or an integer of 1 to 5, and a gas separating membrane prepared from a polymer of the monomer of the formula (1) in an amount of up to 100% by weight and other ethylenically unsaturated monomer in an amount of not more than 50% by weight, based on the combined weight of the monomer of the formula (1) and the other ethylenically unsaturated monomer.
摘要:
This invention provides a fluorine-containing copolymer comprising:(a) 50 to 85 mole % of a structural unit represented by the formula--CH.sub.2 --CF.sub.2--,(b) 5 to 40 mole % of a structural unit represented by the formula--CF.sub.2 --CFX-- wherein X is H or F, and(c) 3 to 18 mole % of a structural unit represented by the formula ##STR1##
摘要:
This invention provides a carrier for developing electrostatic images comprising a core and a coating on the core, the coating being formed from a copolymer comprising a fluoroalkyl acrylate and a monomer copolymerizable therewith.
摘要:
This invention provides an antifouling finishing agent comprising a fluorine-containing polymer comprising at least 50% by weight of a fluorine-containing acrylate represented by the formula ##STR1## wherein Y is alkylene group having 1 to 3 carbon atoms, a group of the formula --CH.sub.2 CH.sub.2 N(R)SO.sub.2 -- (wherein R is alkyl group having 1 to 4 carbon atoms) or a group of the formula --CH.sub.2 CH(OZ)CH.sub.2 -- (wherein Z is hydrogen atom or acetyl group), and R.sub.f is fluoroalkyl group having 3 to 21 carbon atoms or fluoralkyl group having 3 to 21 carbon atoms and containing 1 to 10 oxygen atoms in the carbon chain (provided that no oxygen atom is adjacent or closest to other oxygen atom), said fluoroalkyl groups having at least 5 fluorine atoms.
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:
This invention provides a carrier for developing electrostatic images comprising a core and a coating on the core, the coating being formed from a copolymer comprising a fluoralkyl acrylate and a monomer copolymerizable therewith.
摘要:
This invention provides: (1) a hard coating agent of low refractive index comprising an unsaturated double bond-containing ester compound having fluorine-containing organic group, an unsaturated double bond-containing compound having alkoxysilyl group and a photopolymerization initiator; and (2) a hard coating agent of low refractive index comprising a copolymer prepared by copolymerizing the unsaturated double bond-containing ester compound having fluorine-containing organic group and the unsaturated double bond-containing compound having alkoxysilyl group.