摘要:
Provided is a chlorinated polyether which has excellent solubility in solvents and excellent thermal stability, has the excellent effect of improving the adhesion of coating materials, inks, and adhesives to polyolefins, can be expected to be usable as a flame retardant, and is useful also as a novel starting material for polyurethanes. The polyether is a novel chlorinated polyether containing, as a repeating unit, at least one of the chlorinated-ether residue represented by the following formula (1) and the chlorinated-ether residue represented by the following formula (2). Also provided is a novel polyurethane obtained therefrom.
摘要:
The present invention is directed to a water-soluble polyether glycol polymer having: a structural backbone of carbon atoms and oxygen atoms where there are at least two consecutive carbon atoms present between each oxygen atom; a moiety on the backbone of the polymer or a functionalized derivative on the polymer, that is cationic at physiological pH and permits complexation with phosphate or oxalate; and an average molecular weight from about 5,000 to about 750,000 Daltons. These polymers are formulated for oral dosage to reduce the phosphonate or oxalate levels in an animal. The process of preparing these polymers and the method of reducing gastrointestinal absorption of phosphate and oxalate are included.
摘要:
New halogenated polyether polyols for the production of permanently fire-proof polyurethane foams, said halogenated polyether polyols corresponding to the general formula: ##STR1## in which z represents a number between 2 and 6, x and y represent numbers between 0 and 12 such that the mean value x+y per chain is between 0 and 12, and that z (x+y), in which x+y represents the mean value of x+y in the entire molecule, is between 1 and 72, and Z represents the residue of a halogenated polyhydroxyl compound initiator and comprises a C.sub.2 to C.sub.6 halogenated aliphatic radical of valence z, the halogen being selected from the group consisting of chlorine and bromine.
摘要:
A polycarboxydiene polymer is prepared by reacting a saturated polycarboxylic acid, anhydride, ester or acid halide with a polyhydroxydiene polymer having pendant and terminal hydroxy groups obtained from the reaction of 1 mole of a living polymer having a molecular weight of 500 to 10,000 which is prepared by reacting a conjugated diolefin or a mixture of the conjugated diolefin and a vinyl compound having the formula: CH2 CR1 R2 wherein R1 represents a hydrogen atom or an alkyl group and R2 represents an aryl group or a pyridyl group in the presence of sodium or lithium metal or an organo sodium or lithium compound with 0.5 mole to 2 moles of epichlorohydrin, epibromohydrin, epifluorohydrin, chlorobutylene oxide or bromobutylene oxide.
摘要:
Halogen-containing polymer backbone chains containing grafts of polyethers derived from halogen-substituted oxiranes or oxetanes are described. The graft polymers are produced by contacting polymers containing reactive halogen with halogen-substituted oxiranes or oxetanes in the presence of a catalytic amount of an organoaluminum compound which has been modified with water, boron trifluoride and/or phosphorus pentafluoride. The graft polymers are useful as such for films, fibers, coatings, etc., and are particularly useful for blending with other materials to provide special properties such as flame resistance, impact resistance, etc.
摘要:
CONTAINING MONOMERS TO YIELD USEFUL HIGH MOLECULAR WEIGHT POLYETHER POLYMERS. The polyether compositions have particular utility as substrates onto which vinylidene
WHEREIN X is -Cl, -Br, or -I and R is an alkyl, cycloalkyl, aryl, alkaryl, or aralkyl radical of one to 12 carbon atoms, readily homopolymerize or copolymerize with other epoxide
Trihalomethyl hydrocarbon glycidyl ethers of the formula MONOMERS CAN BE GRAFTED USING METAL COMPLEXES AS CATALYSTS TO PROVIDE IMPROVED POLYMERS.
摘要:
1. A CRYSTALLINE COPOLYMER OF A CIS-1,4-DIHALO-2,3EPOXYBUTANE AND FROM ABOUT 0.5 TO ABOUT 15 WEIGHT PERCENT OF AT LEAST ONE HALOGEN-FREE MONOMER WHICH IS COPOLYMERIZABLE WITH SAID EPOXYBUTANE BY A CATIONIC MECHANISM AND WHICH IS A CYCLIC OXIDE CONTAINING FROM 3 TO 5 MEMBERS IN THE RING.
摘要:
A PROCESS FOR POLYMERIZING EPOXY MONOMERS WHICH COMPRISES MIXING WITH EPOXY MONOMERS PHOTOSENSITIVE ARYLDIAZONIUM COMPOUNDS AND THEREAFTER SUBJECTING THE RESULTING MIXTURE TO ACTINIC RADIATION. THE ARYLDIAZONIUM COMPOUND DECOMPOSE TO PRODUCE POLYMERIZATION INITIATOR IN THE FORM OF A LEWIS ACID, THEREBY CATALYZING THE POLYMERIZATION OF THE MONOMER TO THE POLYMER. EXAMPLES OF PHOTOSENSITIVE COMPOUNDS USEFUL IN THE PROCESS ARE PNITROBENZENEDIAZONIUM HEXAFLUOROPHOSPHATE, P-N-MORPHOLINOBENZENEDIAZONIUM HEXAFLUOROARSENATE, AND 2,4-DICHLOROBENZENEDIAZONIUM HEXACHLOROANTIMONATE.