摘要:
Various embodiments disclosed relate to compatibilized resin-cement composite compositions and methods of using the same. In various embodiments, the present invention provides a method of treating a subterranean formation that includes placing in the subterranean formation a resin-cement composite composition. The resin-cement composite composition includes a resin, a cement, and a substituted or unsubstituted poly(alkylamine) compatibilizer.
摘要:
The present invention includes methods relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion a wellbore by preparing a sealant composition cornprising a fluid component and a polymeric additive component, placing the sealant composition into a wellbore and subjecting the sealant composition to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition.
摘要:
Die vorliegende Erfindung betrifft härtbare Polymermischungen umfassend wenigstens ein mindestens oligomeres Additionsprodukt mit hydrosierbaren Silangruppen und weiteren funktionellen Gruppen als Vermittleradditiv, ein härtbares Polymersystem umfassend Epoxidgruppen aufweisende Polymere und Härter, Füllstoffe und ggf. Hilfsstoffe sowie entsprechende Polymerbetonmischungen und daraus hergestellte Formkörper.
摘要:
Exemplary compositions and methods for reducing hexavalent chromium in cementitious compositions involve the use of a liquid additive composition, comprising stannous chloride. Along with the stannous chloride may be used at least one co-additive comprising an antioxidant, oxygen scavenger, or mixture thereof, and/or at least one agent comprising a cement grinding aid, cement quality improver, or mixture thereof.
摘要:
Methods and compositions involving hexavalent chromate-reducing agents, particularly hydroxylamine, hydrazine, or their salts or derivatives, for use in cement compositions and cement processing.
摘要:
Various embodiments disclosed relate to constitutionally dynamic polymer for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation, the method including placing in the subterranean formation a composition including a constitutionally dynamic polymer.
摘要:
Various embodiments disclosed relate to a weighted composition for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include placing in a subterranean formation a weighted composition. The weighted composition can include a weighting agent and an inorganic coating material on the weighting agent. The inorganic coating material can be a crystalline inorganic coating material. The inorganic coating material can be an amorphous inorganic coating material.
摘要:
The present invention concerns a nozzle assembly (20, 30) for a metal casting apparatus selected from a sliding gate and a tube exchange device, said nozzle assembly comprising: a first refractory element (1 ) comprising a first coupling surface (1 a) which includes a first bore aperture, and a second refractory element (11 ) comprising a second coupling surface (1 1a), which includes a second bore aperture, the first and second elements being coupled to one another in a sliding translation relationship through their respective first and second coupling surfaces such that the first and second bore apertures can be brought into and out of registry to define, when in registry, a continuous bore (3, 13) for discharging molten metal from a molten metal inlet (13a) to a molten metal outlet (3b) of said nozzle assembly, a sealing member (2) provided between the first and second coupling surfaces of the first and second elements, characterized in that, the sealing member (2) comprises a thermally intumescent material.
摘要:
The present invention concerns a nozzle assembly (20, 30) for a metal casting apparatus selected from a sliding gate and a tube exchange device, said nozzle assembly comprising: a first refractory element (1 ) comprising a first coupling surface (1 a) which includes a first bore aperture, and a second refractory element (11 ) comprising a second coupling surface (1 1a), which includes a second bore aperture, the first and second elements being coupled to one another in a sliding translation relationship through their respective first and second coupling surfaces such that the first and second bore apertures can be brought into and out of registry to define, when in registry, a continuous bore (3, 13) for discharging molten metal from a molten metal inlet (13a) to a molten metal outlet (3b) of said nozzle assembly, a sealing member (2) provided between the first and second coupling surfaces of the first and second elements, characterized in that, the sealing member (2) comprises a thermally intumescent material.
摘要:
The present invention pertains to a water-redispersible polymer powder composition based on at least one synthetic polymer and at least one natural latex. Preferably, the polymer powder contains up to about 90 wt.% of at least one water- insoluble, synthetic polymer, up to about 90 wt.% of least one natural latex, about 0 to 50 wt.% of at least one protective colloid, about 2 to 50 wt.% of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder composition, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder composition.