摘要:
A continuous free radical polymerization process for the preparation of water-soluble copolymers from water-soluble monomers for further processing to dry polymers is disclosed. The process allows efficient polymerization of the monomers in aqueous solution in the presence of a free radical catalyst through backmixing. Water-soluble polymers with molecular weights of from about 3,000-30,000,000 and preferably from about 500,000-10,000,000 are obtained utilizing this process.
摘要:
In one aspect, the present disclosure relates to a method for providing a user with three dimensional user personalized video. In some embodiments, the method includes providing, from a web server, a user with a selection of video clips stored in a database; receiving at the web server a selection of a video clip; receiving at the web server data from the user, wherein said data can be a plurality of symbols to personalize the video clip; rendering, using a rendering module, a three dimensional personalized video clip using the selected movie clip and the plurality of symbols; and providing, from the web server, the three dimensional personalized video clip to the user.
摘要:
An apparatus for mixing or blending chemicals includes a dedicated pump for each type of chemical to be blended, such as one pump for water-based chemicals and another pump for oil-based chemicals. Each pump preferably operates in a fast speed when delivering the majority of a particular chemical into a vending vat. When the desired amount of a chemical has almost been pumped into the vat, the pump switches to a slower speed to add the remaining amount. Then, the pump is reversed to clear the chemical from the line so that another similarly based chemical can be pumped through the line into the vat.