摘要:
A method for producing composite materials which comprises in one step preparing modified cellulose fibers by treating (A) cellulose fibers with an aqueous emulsion of (B) at least one ethylene copolymer having a molecular weight Mn of up to 20 000 g/mol maximum and comprising as comonomers in incorporated form (a) 50% to 95% by weight of ethylene, (b) 5% to 50% by weight of at least one comonomer having at least one alkylated or cycloalkylated amino group which is connected via a spacer to a polymerizable group, (c) 0% to 30% by weight of other comonomers, and in a further step by mixing modified cellulose fibers with (C) at least one thermoplastic (D) and optionally one or more adjuvants.
摘要:
An aqueous paint formulation composed of an aqueous basecoat and an aqueous dispersion of an at least partially neutralized ethylene copolymer wax which is selected from ethylene copolymer waxes comprising as comonomers in copolymerized form: (A) 12% to 40% of an ethylenically unsaturated carboxylic acid of the formula I, where R1 and R2 are hydrogen and/or C1-C10alkyl; (B) 60% to 88% of ethylene; (C) 0% to 10% of a further comonomer; or (A′) 5% to 50% of a comonomer of the formula II where R1 and R2 are hydrogen and/or C1-C10alkyl, R3 is hydrogen, C1-C10alkyl and/or C3-C12cycloalkyl, where two radicals R3 may be joined to form a ring, X is oxygen, sulfur and/or N—R4, R4 is C1-C10alkyl or hydrogen, and A1 is a divalent group; (B′) 50% to 95% by weight of ethylene, and (C′) zero to 20% by weight of a further comonomer; where the ethylene copolymer waxes (A)(B)(C) and (A′)(B′)(C′) have a molecular weight 10 000 to 100 000 and 5000 to 40 000 g/mol, respectively; and the use thereof for coating plastics.
摘要:
An aqueous paint formulation having an aqueous basecoat and an aqueous dispersion having an at least partially neutralized ethylene copolymer wax, wherein the ethylene copolymer wax contains as comonomers in copolymerized form (A) 12-40 wt % of an ethylenically unsaturated carboxylic acid of formula (I), (B) 60-88 wt % of ethylene, and (C) 0-10 wt % of a further comonomer; or the ethylene copolymer was contains as comonomers in copolymerized form (A′) 5-50 wt % of a comonomer of formula (II), (B′) 50-95 wt % of ethylene, and (C′) 0-20 wt % of a further comonomer; wherein the ethylene copolymer wax comprising the comonomers (A), (B), and optionally (C) has a molecular weight Mw of 10000 to 150000 g/mol, and the ethylene copolymer wax comprising the comonomers (A′), (B′), and optionally (C′) has a molecular weight Mw of 5000 to 40000 g/mol.
摘要:
A terpolymer formed from (A) ethylene, (B) (i) C2- to C14-alkenyl esters of one or more aliphatic C1- to C20-monocarboxylic acids or (ii) C1- to C24-alkyl esters of acrylic acid or methacrylic acid and (C) olefinically unsaturated hydrocarbons selected from (iii) five- to seven-membered cycloalkenes and (iv) α-olefins having 6 to 20 carbon atoms. The terpolymer mentioned is suitable as a cold flow improver in middle distillate fuels. It lowers the lower mixing temperature of cold flow improver additives into middle distillate fuels and improves the filterability of middle distillate fuels comprising cold flow improver additives.
摘要:
Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.
摘要:
The present invention relates to the use of cationic polymers obtainable by free-radical copolymerization of a) 60 to 99 mol % of at least one 1-vinylimidazole monomer, b) 1 to 40 mol % of at least one free-radically polymerizable quaternizable monomer b1) or methacrylic acid b2) and c) 0 to 30 mol % of at least one further free-radically copolymerizable monomer different from a) and b) in hair cosmetic preparations.
摘要:
Quaternized terpolymer formed from (A) ethylene, (B) C2-C14-alkenyl esters of one or more aliphatic C1-C20-monocarboxylic acids or C1-C24-alkyl esters of acrylic acid or of methacrylic acid and (Cq) ethylenically unsaturated monomers which comprise at least one tertiary nitrogen atom which is partly or fully in quaternized form. The quaternized terpolymer is suitable as a fuel additive for reducing or preventing deposits, for reducing fuel consumption and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.
摘要:
Aqueous solutions comprising: one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof; and hydrogen peroxide; wherein the hydrogen peroxide is present in an amount of 100 to 5000 ppm; and methods of stabilizing aqueous solutions containing one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof.
摘要:
The following invention relates to copolymers containing silicone groups which comprise, in copolymerized form, at least one monomer with an ionogenic and/or ionic group and at least one crosslinking monomer, to a process for the preparation of such copolymers containing silicone groups by precipitation polymerization, and to the use of these copolymers.
摘要:
The present invention relates to a copolymer with high cationic charge based on quaternized nitrogen-containing monomers, to cosmetic or pharmaceutical compositions which comprise at least one such copolymer, and to further uses of these copolymers.