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| Number | Title | Issue Date |
| 7867952 | Flexible polymer, particles prepared therefrom and process for preparing the same Disclosed are a flexible polymer, particles made from same, and a process for preparing the particles. This flexible polymer is obtained from copolymerizing monomer (A) and monomer (B), wherein monomer (A) is one or more water-insoluble unsaturated diene monomers; m... | 01/11/2011 |
| 7786336 | Catalyst composition for ethylene oligomerization and the use thereof The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the g... | 08/31/2010 |
| 7727924 | Method to raise the solid content of catalytic cracking catalyst slurry A method for preparing cracking catalyst. The method comprises making catalyst slurry having a homogeneous distribution of molecular sieve slurry, pseudoboehmite, clay, inorganic acid and aluminum-containing binder; and subsequent spray drying. Inorganic acid is add... | 06/01/2010 |
| 7635022 | Pumping system A pumping system is described comprising a bracket being vertically fixed onto the connection end of a pump basement and also connected to a wellhead in order to support multiple fixed pulleys fixed on the same plane as the top end of the bracket), an electric motor... | 12/22/2009 |
| 7595413 | Phosphine-substituted vinyl containing metallocene catalyst, preparation process and the application of the same The invention relates to a phosphine-substituted vinyl containing metallocene catalyst, and also to the preparation process of the same as well as to the application of the catalyst. The catalyst has the general formula of Cp2(CR1═CR2 | 09/29/2009 |
| 7592379 | Oil-based dispersing method of drag reduction polymers An oil-based suspension-dispersion system of drag reduction polymers and the method for preparing same, characterized in adding 0.001-0.1 wt % of ultraviolet absorber and 0.001-0.1 wt % of bactericide into 50-90 wt % of vegetable oil and then mixing the obtained mix... | 09/22/2009 |
| 7410012 | Hydraulic automatic boosting pump A hydraulic automatically-pressurizing pump comprises an intermediate fastening connector, a reversing valve, a mechanically-controlled automatic direction-reversing device, a power cylinder, a pressurizing cylinder and an ultrahigh-pressure connecting tube which ar... | 08/12/2008 |
| 7390762 | Method for the preparation of high-content NaY molecular sieves synthesized from kaolin sprayed microspheres A method for synthesizing high-content NaY molecular sieves with kaolin sprayed microspheres includes adding functional components and deionized water into kaolin so as to be pulped into a mixed slurry. The slurry is sprayed into microspheres. The microspheres are c... | 06/24/2008 |
| 7316773 | Catalytic cracking process and the device used therein The present invention relates to a catalytic cracking process and a device used in the process in particular, the present invention provides a catalytic cracking process, which comprises which comprises: 1) catalytic cracking a fee... | 01/08/2008 |
| 7304116 | Braided comb-shaped salt-resistant polymer thickening agent A braided comb-shaped salt-resistant thickening agent for tertiary oil extraction from class I oil reservoir is disclosed. The agent is polymerized with monomer (A) and monomer (B), and monomer (A) is one or multiple water soluble non-saturated compound(s) wi... | 12/04/2007 |
| 6774092 | Additive composition for gearbox oil Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc ... | 08/10/2004 |
| 6660157 | Heavy oil hydrocracking process with multimetallic liquid catalyst in slurry bed The invention relates to a new and improved heavy oil hydrocracking process using a multimetallic liquid catalyst in a slurry-bed reactor, particularly an improvement of lightweight treatment of heavy oil in the petroleum processing technology. According ... | 12/09/2003 |
| 6394234 | Liquid controlled disk braking device The invention relates to a liquid controlled disk braking device having a brake disk, brake caliper, and a caliper carrier. The brake disk is postionable on the roller of a main hoist and forms a brake pair together with the brake calipers. A combination ... | 05/28/2002 |
