摘要:
Elastic-thermoplastic graft polymers manufactured by radical emulsion polymerization of resin-forming vinyl monomers in the presence of rubber present in latex form with the use of a combination of a peroxide of formula (I) ##STR1## where R.sup.1 signifies alkyl, cycloalkyl and aryl groups with 4 to 20 carbon atoms, X the groups --COOH and --SO.sub.3 H as well as their alkali, alkaline-earth or ammonium salts, n an integer in the range from 1 to 6, A alkylene, cycloalkylene and arylene groups with 6 to 40 carbon atoms and a reducing agent as initiator system, a method for their manufacture and their use as moulding compositions.
摘要:
Elastic-thermoplastic graft polymers manufactured by radical emulsion polymerisation of resin-forming vinyl monomers in the presence of rubber present in latex form with the use of a combination of a peroxide of formula (I) ##STR1## where R.sup.1 signifies alkyl, cycloalkyl and aryl groups with 4 to 20 carbon atoms,X the groups --COOH and --SO.sub.3 H as well as their alkali, alkaline-earth or ammonium salts,n an integer in the range from 1 to 6,A alkylene, cycloalkylene and arylene groups with 6 to 40 carbon atomsand a reducing agent as initiator system, a method for their manufacture and their use as moulding compositions.
摘要:
New compounds corresponding to formula (I) ##STR1## and their use as emulsifiers for aqueous emulsions and, in the case of carboxylic acid derivatives, also as reactive groups for linking to biologically active substrates. New polymers synthesized from the emulsifiers and other monomers are also claimed.
摘要:
Sulphosuccinamide acids and their salts corresponding to the following general formula ##STR1## wherein X denotes the residue of a hydrophobic, optionally branched vinyloligomer having an average molecular weight M.sub.n of from 200-5,000, preferably from 300-3,000,of the groups denoted byR.sup.1 R.sup.2, one is hydrogen and the other is --SO.sub.3 M, andn represents a number with a value of from 1.4-3.0, preferably form 1.6-2.3. andM denotes hydrogen, an alkali metal, or an ammonium, C.sub.1 -C.sub.4 -alkyl-ammonium or C.sub.2 -C.sub.3 -hydroxy alkyl-ammonium group.
摘要:
This invention relates to a process for the production of an aqueous dispersion based on homo- and copolymers of conjugated dienes which is fluid under normal conditions and has a solids content of from 25 to 55%, by weight, and an average latex particle diameter of from 20 to 150 nm, characterized in that in an aqueous dispersion based on homo- and co-polymers of conjugated dienes which has been produced by one of the conventional processes and is not fluid under normal conditions and is free from alkane polysulphonate salts, from 0.05 to 0.5%, by weight, based on the solids content of the dispersion, of a water-soluble salt of at least one alkane polysulphonate is uniformly distributed in the form of a dilute aqueous solution and is dissolved in the aqueous phase of the dispersion.
摘要:
Surface-active azo compounds corresponding to the following general formula ##STR1## in which ##STR2## R represents C.sub.1 -C.sub.4 -alkyl, R.sup.1 represents the residue diminished by the isocyanate groups of an aliphatic, aromatic or cycloaliphatic diisocyanateR.sup.2 represents C.sub.5 -C.sub.12 -alkylene, phenyleneW represents --COO.sup.(-), --SO.sub.3.sup.(-) andK represents Na.sup.(+), K.sup.(+), NH.sub.4.sup.(+), and their use in the emulsion polymerization of one or more olefinically unsaturated monomers.
摘要:
The present invention provides polymer compositions of special graft rubber polymers, in the production of which are employed rubbers with defined particle diameters obtained by seed polymerization using seed latex particles with defined particle diameters.
摘要:
New compounds corresponding to formula (I) ##STR1## and their use as emulsifiers for aqueous emulsions and, in the case of carboxylic acid derivatives, also as reactive groups for linking to biologically active substrates. New polymers synthesized from the emulsifiers and other monomers are also claimed.