摘要:
The invention pertains to an aqueous composition having a pH of 3 or less and comprising the following ingredients, based on the total weight of the composition: a) 0.05-40 wt % of a polymeric thickener having —COOR groups, wherein R is independently chosen from H, OH, and a carbon-containing group, and b) 0.05-60 wt % of hydrogen peroxide, wherein the active oxygen content attributable to ingredient a) is at least 0.02 wt %, based on the total weight of the composition, with the proviso that (co)polymers prepared from (meth)acrylate monomers are absent.
摘要:
The invention pertains to an aqueous composition having a pH of 3 or less and comprising the following ingredients, based on the total weight of the composition: a) 0.05-40 wt % of a polymeric thickener having —COOR groups, wherein R is independently chosen from H, OH, and a carbon-containing group, and b) 0.05-60 wt % of hydrogen peroxide, wherein the active oxygen content attributable to ingredient a) is at least 0.02 wt %, based on the total weight of the composition, with the proviso that (co)polymers prepared from (meth)acrylate monomers are absent.
摘要:
The present invention relates to a process for cleaning a filtration membrane by adding one or more peroxide compounds to the influx. Preferably, one or more activators and/or reductants are added to the influx as well, in order to improve the performance of the peroxide compound. Optionally, one or more chelating agents and/or one or more surfactants can be used in said process.
摘要:
The present invention relates to a deicing composition comprising (i) a deicing agent selected from the group consisting of sodium chloride, calcium magnesium acetate, calcium chloride, magnesium chloride, potassium chloride, potassium acetate, sodium acetate, sodium formate, potassium formate, (ii) a native protein, and (iii) a thickener. It furthermore relates to a process for preparing said deicing composition and to a process for deicing a surface using said deicing composition.
摘要:
A process for enhancing the melt strength of polypropylene includes the steps of: mixing the polypropylene with at least 0.1-8 wt. % of an oligomer of maleimide or a derivative thereof, based on the amount of polypropylene, completely or substantially in the absence of peroxide; reacting the polypropylene and oligomer of maleimide or a derivative thereof at a temperature between 150° C. and 300° C.
摘要:
A peroxide-free curing system comprising 20-89.5% by weight of a compound having at least one epoxide group, 0.5-30% by weight of a polyamine, and 10-50% by weight of a co-curing agent is presented. The co-curing agent has formula (I): and/or its tautomeric formulae IIa and/or IIb: and/or formula (III): or a tautomer and/or an oligomer thereof; wherein D stands for branched (CR1R2)n or wherein p is independently 0 or 1, and X is CH2, O, or SO2 and stands for a meta- or para-benzene group; R is independently H or C1-C4 alkyl; R1 and R2 are independently H or (CH2)mCH3; wherein at least one group R2 is (CH2)mCH3 and m being 0 to 2; n being 1 to 10; and n+m is 4 to 14; R′—CH2 is R; and P stands for phenyl, or unsubstituted or hydroxy-substituted C1-6 alkyl or C2-6 alkenyl; with the proviso that at least one of R is C1-4 alkyl.
摘要:
A peroxide-free curing system comprising 20-89.5% by weight of a compound having at least one epoxide group, 0.5-30% by weight of a polyamine, and 10-50% by weight of a co-curing agent is presented. The co-curing agent has formula (I): and/or its tautomeric formulae IIa and/or IIb: and/or formula (III): or a tautomer and/or an oligomer thereof; wherein D stands for branched (CR1R2)n or wherein p is independently 0 or 1, and X is CH2, O, or SO2 and stands for a meta- or para-benzene group; R is independently H or C1-C4 alkyl; R1 and R2 are independently H or (CH2)mCH3; wherein at least one group R2 is (CH2)mCH3 and m being 0 to 2; n being 1 to 10; and n+m is 4 to 14; R′—CH2 is R; and P stands for phenyl, or unsubstituted or hydroxy-substituted C1-6 alkyl or C2-6 alkenyl; with the proviso that at least one of R is C1-4 alkyl.
摘要:
The present invention relates to a deicing composition comprising (i) a deicing agent selected from the group consisting of sodium chloride, calcium magnesium acetate, calcium chloride, magnesium chloride, potassium chloride, potassium acetate, sodium acetate, sodium formate, potassium formate, (ii) a native protein, and (iii) a molasses. It furthermore relates to a process for preparing said deicing composition and to a process for deicing a surface using said deicing composition.
摘要:
The present invention relates to a deicing composition comprising (i) a deicing agent selected from the group consisting of sodium chloride, calcium magnesium acetate, calcium chloride, magnesium chloride, potassium chloride, potassium acetate, sodium acetate, sodium formate, potassium formate, (ii) a native protein, and (iii) a thickener. It furthermore relates to a process for preparing said deicing composition and to a process for deicing a surface using said deicing composition.
摘要:
The present invention relates to a deicing composition comprising (i) a deicing agent selected from the group consisting of sodium chloride, calcium magnesium acetate, calcium chloride, magnesium chloride, potassium chloride, potassium acetate, sodium acetate, sodium formate, potassium formate, (ii) a native protein, and (iii) a molasses. It furthermore relates to a process for preparing said deicing composition and to a process for deicing a surface using said deicing composition.