US Patent for Polyacrylamide with low molecular weight
Polyacrylamide with low molecular weight Feb 13, 1998 - Henkel Kommanditgesellschaft auf Aktien The invention concerns a polyacrylamide-containing composition which is characterized in that it has a molecular weight of between 2,000 and 8,000 g/mol, determined by means of gel permeation chromatography (GPC), and as a 15% aqueous solution still
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Polyacrylamide with low molecular weight - Henkel
Accordingly, the present invention relates to a polyacrylamide-containing adhesive composition which is characterized in that it contains a polyacrylamide with a very low molecular weight of 2,000 to 8,000 g/mole and preferably 3,500 to 5,000 g/mole, as determined by gel permeation chromatography (GPC), and in that the polyacrylamide has a
1. The use of a polyacrylamide-containing composition, the polyacrylamide having molecular weight of 2,000 to 8,000 g/mole, as determined by gel permeation chromatography, and a Brookfield viscosity of 5 to 500 mPas in the form of a 15% by weight solution at 25°C, for surface bonding of and/or to water-absorbing or hard surfaces. 2.
Low Molecular Weight Polyacrylamide/oil Drilling Pam/ Phpa
Packaging Details two-layer bag with the interior in plastic and the exterior in paper. The weight of each bag is 20kg/25kg, low Molecular Weight Polyacrylamide/Oil Drilling PAM/ PHPA/bore well drilling /horizontal directional drilling
College of Chemistry, Jilin University, Changchun , Jilin 130023 ,P R of China);Studies on Mechanical Degradation of Partially Hydrolized Polyacrylamide in Course of Polymer Flooding: Changes in Relative Molecular Mass, Viscosity and Related Parameters 8
Reorganization of low-molecular-weight fraction of plasma
Reorganization of the low-molecular-weight fraction of cyprinid plasma was analyzed using various electrophoretic techniques (disc electrophoresis, electrophoresis in polyacrylamide concentration gradient, in polyacrylamide with urea, and in SDS-polyacrylamide). The study revealed coordinated changes in the low-molecular-weight protein fractions with seasonal dynamics and related reproductive
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The Heck Reaction as a Sharpening Stone of Palladium Catalysis
Efficient Construction of Fused Indolines with a 2-Quaternary Center via an Intramolecular Heck Reaction with a Low Catalyst Loading. Organic Letters 2012 , 14 (8) , 2066-2069.
High-performance block-based cycler for real-time PCR. Gain from fast cycling protocol, advanced multiplexing and high-quality thermal performance in your real-time PCR applications with the flexibility of a 96- or 384-well block QIAquant instrument.
Abstracts cont. - Clinical Microbiology and Infection
Methods: A total of 26 gastric biopsies samples from ulcer-patients were homogenised in 2 mL of selective broth, and a 500 μL aliquot was used for FISH detection. Twenty-nine wastewater samples collected from different treatment plants were centrifuged and subsequently fixed with 4% paraformaldehyde solution for 4 h at 4°C and then washed with 1% PBS buffer.
The cellulolytic active hits were identified by using low-density carboxymethyl cellulose (CMC) with a final concentration of 0.5 % weight to volume (w/v). After 48 h of growth at 37 °C, the colonies were thoroughly removed from the agar plates by small volumes of 0.1 % (w/v) Congo Red (CR) solution in 20 % (v/v) ethanol. Then, the agar plates
- Is rotary drum reactor a pretreatment technology for municipal solid waste?
- Gikas, P., Zhu, B., Batistatos, N. I., & Zhang, R. (2018). Evaluation of the rotary drum reactor process as pretreatment technology of municipal solid waste for thermophilic anaerobic digestion and biogas production.
- What is biological nutrients removal process in municipal wastewater treatment?
- Biological nutrients removal process, i.e., anaerobic-anoxic–oxic, was the prevalent municipal wastewater treatment technology across the world. Nevertheless, additional carbon sources were required to acquire a good effluent quality when treating low organic strength municipal wastewater.
- Can mechanical pretreatment help disintegrate sewage sludge?
- The promising techniques of combining physical and chemical pretreatment methods, such as free nitrous acid (FNA) and mechanical pretreatment, have shown significant effects on the disintegration of sewage sludge.
- What is the methane yield of sewage sludge after Ultrasonication pretreatment?
- Methane yield of sewage sludge after ultrasonication pretreatment increased from 88 to 172 mL STP/g VS, increasing by around 95%. The biodegradability of pretreated sewage sludge reached 81% in VS, which gave a maximum OLR of 4.1 kg VS/m 3 d and a methane production rate of 1270 L STP/m 3 d.
