1,721,183 research outputs found
Fluorovinyl ethers and polymers obtainable therefrom
No full textABSTRACT
FLUOROVINYL ETHERS HAVING THE FORMULA CFX=CXOCF2OR, WHEREIN X= F, H; R IS A C2-C6 LINEAR, BRANCHED OR C5-C6 CYCLIC (PER)FLUOROALKYL GROUP, OR A C2-C6 LINEAR, BRANCHED (PER)FLUORO OXYALKYL GROUP CONTAINING FROM ONE TO THREE OXYGEN ATOMS; WHEN R IS FLUOROALKYL OR FLUOROOXYALKYL GROUP AS ABOVE DEFINED, IT CAN CONTAIN FROM 1 TO 2 ATOMS, EQUAL OR DIFFERENT, SELECTED FROM THE FOLLOWING: H, CL, BR, I; AND HOMOPOLYMERS OR POLYMERS OBTAINABLE POLYMERIZING SAID FLUOROVINYL ETHERS WITH AT LEAST ANOTHER POLYMERIZABLE MONOMER
Method of making fluoro vinyl ethers and polymers obtainable therefrom
No full textFluorovinyl ethers having the formula CFX-CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per)fluoroalkyl group, or a C2-C6 linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, it can contain from 1 to 2 atoms, equal or different, selected from the following: H, Cl, Br, I; X-F, H; and homopolymers or polymers obtainable polymerizing said Fluorovinyl ethers with at least another polymerizable monomer
"Preliminary study on the reactivity of the trifluoromethylhypofluorite with chlorotrifluoroethylene (CTFE) in presence of oxygen."
No full text15th Winter Fluorine Conference, St. Petersburg Florida USA (2001)
Compositions for porous materials
No full textThe present invention relates to the use of water soluble neutral esters of acids of phosphorous of general formula (I) as carriers for improving the absorption of aqueous compositions, preferably aqueous solutions, into porous wettable materials such as paper, wood, masonite, plaster, preferably wood: wherein:
R1 and R3, being identical or different, are linear or branched C1-C4 alkyls, preferably C1-C3;
R2 is linear or branched C1-C4 alkyl or oxyalkyl, preferably C1-C3;
R3 and R2, when R2 is oxyalkyl taken together may form a ring having 5 to 6 atoms, including 2 or 3 carbon atom
SYNERGIC ACTIVATION OF PERFLUORINATED REACTIVE INTERMEDIATES: CHEMISTRY AND NEW APPLICATIONS
No full text
Fluoroelastomer
No full textFIELD: polymer materials. ^ SUBSTANCE: invention provides fluoroelastomers including, in their polymer chain, units obtained from fluorovinyl ethers having general formula CFX=CX-O-CF2-OR wherein R represents C2-C6-linear or branched or C5-C6-cyclic (per)fluoroalkyl group, or C2-C6-linear or branched (per)fluorooxyalkyl group containing 1-3 oxygen atoms, provided that, when R is above-defined fluoroalkyl or fluorooxyalkyl group, it can contain 1-2 identical or different atoms selected from group including H, Cl, Br, and I; and X represents F or H. ^ EFFECT: increased choice of fluorinated elastomer materials. ^ 18 cl, 17 e
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