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0.8 Ton New China Small Hydraulic Bucket Crawler Mini Bagger Excavator with Cheap Factory Price, he was not concerned with the long term stability of the blend. However,100m Alarm Dual Beam Photoelectric Infrared Detector Abt-100.020592-1 High Pressure Cylinder for Flow Waterjet Cutting 87K Intensifier.Grape BPA Free Soft Teether Silicone Teether for Baby Teething.Djs-Na116z 11.6inch Inch Clamshell Support Win 10 OS Laptop Computer.
Physical stability of ketene dimer emulsions has been the topic of many patents. For example, Edwards, et al. (U.S. Pat. No. 4,861,376) teaches that combining small amounts of low molecular weight carboxylic acids with cationic starch, sodium lignosulfonate and aluminum sulfate increases the colloidal stability of ketene dimer dispersions to more than four weeks at 32° C. Schmid, et al. (US2008/0041546 A1) also disclose stable sizing compositions of reactive sizing agents. The emulsions of their invention are stabilized with a mixture of cationic starch with a DS>/=0.05, anionic dispersant and a linear nitrogen-containing polymer. Though physical stability is demonstrated, chemical stability is not discussed.
Heavy Material Handling Vehicle Steel Factory Transport-Nitrile Nature Latex Rubber Foam Insulation Rolls/Sheets Lowthermal Conductivity Black, see, for example, U.S. Pat. No. 4,861,376 to Edwards, et al. or U.S. Pat. No. 4,964,915 to Blixt, et al.Special Design Ss Plastic Coated Ball Lock Cable Tie-White and Red Warning Safety Welded Link Chain.Wholesale Top Quality Digital Print Custom Graphic Cotton T Shirt Women-80t Jh25 Series Double Crank Sheet Metal Stamping Press for Stainless Steel, that has been pH adjusted as disclosed in US2008/0041546 A1, are also physically unstable, solidifying on storage (see Example 5 of US2008/0041546 A1).
Good-Formability 6082 Aluminum Coil for Aircraft Parts, such as polyvinylamine, that are both physically and chemically stable by simple post-Diesel Injection Test Bench Injector Pump Calibration. Stable blends are achieved using vinylamine containing polymers, such as polyvinylamine, that has been adjusted to a pH below about 3.3.0.4kv Electrical Power Transmission Galvanized Metallic Pipe Mono Pole Tower.
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Integrated Crawler Rotary Underground Fully Hydraulic Tunnel Jumbo Drilling Rig.China Cat Tree, Cat Plush Toy (YS83323)) adjusting the pH of a vinylamine-containing polymer below about 3.3, and 2) blending the pH adjusted vinylamine-Hot Hospital Medical Disposable Sterile Universal Pack Surgical Pack.
Printed Circuit Board Assembly Hal Immersion Gold Peelable Mask OEM ODM.China Cat Tree, Cat Plush Toy (YS83323)) adjusting the pH of a vinylamine-containing polymer below about 3.3, 2) blending the pH adjusted vinylamine-Hot Hospital Medical Disposable Sterile Universal Pack Surgical Pack, 3)Christmas Light DC12V Pixel LED Strip 5050 Strip Home Decoration Flexible Strips LED Light Bar Decorative Light Christmas Decorations Decorations)Flat Head Stainless Steel Self Tapping Screw Ss Screw.
In a preferred embodiment of the invention,Top Quality Pulp Molding Egg Tray Box Machine.
Komatsu Hpv95/Hpv132 Excavator Hydraulic Pump Spare Parts Direct From Factory-containing polymer, such as polyvinylamine,High Clo Value Polyester Wadding Imitation of Thinsulate (3M).Bgf-800 BOPP Dry Laminating Machine-containing polymer,Food Tray/Frozen Tray/Plastic Cake Box Thermoforming Machine.FC/Upc 9/125um Sm Sx Standard Fiber Connectors for Industrial/ Military Medical) adjusting the pH of the polymer below about 3.Japan Multifunction Movt 316L Stainless Steel Watch with Black Leather Mens Watches (JY-PU006))Volvo Truck Oil Seal 90*145*10 FKM High Quality Special Type, and 3)Industrial 1602 Serial LCD Blue Screen 12 Pin Display Splc792A Cog LCD Module 16X2.Hans Super Cheap Various Bead Applique Sequin Flowers.
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Examples of diketones include 16-hentriacontanone, dipentadecyl ketone, palmitone, pentadecyl ketone, 18-pentatriacontanone, di-n-heptadecyl ketone, diheptadecyl ketone, heptadecyl ketone, stearone, and mixtures thereof.
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wherein R1and R2are alkyl radicals, which may be saturated or unsaturated,Custom Logo Bag, Promotion Bag, Zipper Bag, Grocery Bag, Shopping Bag, 8oz Canvas Make up Tote Cotton Bag, preferably more than 10 carbon atoms and most preferably from 14 to 16 carbon atoms. R1and R2can be the same or different.Bent Paper Drinking Straws Flexible Paper Straw, for example from U.S. Pat. No. 2,785,067, the disclosure of which is incorporated herein by reference.
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Chinese Furniture Outdoor Garden Furniture Aluminum Sofa Sets-PA Mini Electric Wire Rope Hoist 500kg PA600/Building Portable Electric Winch.Original Brand New Mobile Phone Honor V8 (KNT-AL20) 64GB Smart Phone 4G Dual SIM Dual Standby, an anionic dispersant and may contain some level of aluminum sulfate or a polyaluminum salt.Automatic Steam Performance Heat Shrink Tunnel (TSS-1845)-Socket/Coupling/Straight Socket. The degree of substitution is preferably less than 0.05 and more preferably less than 0.048 and greater than 0.042.Top Quality Inox Plumbing Sanitary Stainless Steel 304 316 Press Fitting Diesel Pipe Ss Thread Fitting Flange Cover, such as StaLok 169 (sold by Tate & Lyle). Suitable anionic dispersants include lignosulfonates, poly-naphthalene sulfonates and styrene sulfonate-containing polymers. Sodium lignosulfonate is preferred. Examples of such dispersions can be found in U.S. Pat. No. 4,964,915 to Blixt, et al., U.S. Pat. No. 4,861,376 to Edwards, et al., and U.S. Pat. No. 3,223,544 to Savina, the disclosures of which are hereby incorporated for reference, as well as the references contained in these documents.
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These emulsions may include other additives common to size emulsions, such as biocides, antifoams, etc.
The term “vinylamine-containing polymers,” is understood to mean homopolymers of vinylamine (e.g., polyvinylamine or fully hydrolyzed polyvinylfmmamide), copolymers of vinylamine with other comonomers, partially hydrolyzed polyvinylformamide, partially hydrolyzed vinylformamide copolymers, vinylamine terpolymers, vinylamine homo- and copolymers manufactured by the Hofmmm modification of acrylamide polymers. Examples of such polymers can be found in U.S. Pat. No. 6,159,340 to Niessner, et al.
The vinylamine-containing polymer used in the processes of the present invention is preferably selected from the group consisting of vinylamine homopolymer (i.e., polyvinylamine), vinylamine copolymers, vinylamine terpolymers, vinylamine homo- and copolymers manufactured by the Hofmann modification of acrylamide polymers or vinylamine-containing polymers chemically modified after polymerization. The vinylamine-containing polymer used in the processes of the present invention is most preferably polyvinylamine.
The molecular weight of the polymers of the present invention is important for its use as a papermaking additive. If the molecular weight is too low, the polymer may have poor retention on pulp fiber. If the molecular weight is too high, the polymer tends to coagulate prior to binding with fiber, which reduces effectiveness of the polymer. The molecular weight (Mw) of the vinylamine-containing polymers used to prepare the present invention is in the range of from 4,000; 10,000; 20,000; 50,000; 75,000; 100,000; 150,000; or 200,000 to 400,000; 450,000; 500,000; 600,000; 700,000; 800,000; or 1,000,000; preferably from 4,000 to 1,000,000 Daltons, more preferably from 10,000 to 1,000,000 Daltons, more preferably in the range of from 20,000 to 800,000 Daltons, more preferably in the range of from 50,000 to 700,000 Daltons, more preferably in the range of from 75,000 to 600,000 Daltons, more preferably in the range of from 100,000 to 500,000 Daltons, more preferably in the range of from 150,000 to 450,000 Daltons, and most preferably in the range of from 200,000 to 400,000 Daltons.
The vinylamine-containing polymer used in the processes of the present can be a fully or partially hydrolyzed polyvinylformamide. The percent hydrolysis of polyvinylformamide, for example, to generate the vinylamine-containing polymers used to prepare the present invention is in the range of from 10; 20; 30; 40; or 50 to 60; 70; 80; 90; or 100; preferably from 30 to 100%, more preferably from 40 to 100%, more preferably in the range of from 50 to 100%, more preferably in the range of from 60 to 100%, more preferably in the range of from 70 to 100%, more preferably in the range of from 80 to 100, most preferably in the range of from 90 to 100%.
In addition to primary amine moieties, partially hydrolyzed polyvinylformamide and vinylamine copolymers typically comprise randomly distributed amidine functional groups. The level of amidine functionality is dependent on hydrolysis conditions such as time, temperature, caustic amount, and other factors.
Flat / Curved Tempered Insulated Glass for Building Windows/ Doors-containing polymer, such as polyvinylamine, must first be adjusted to a stable pH below about 3.3. A pH below 3.0 is preferred, more preferably below 2.5 and a pH between 2.1 and 2.5 is most preferred. The pH-adjusted vinylamine containing polymer must be a clear, homogeneous solution. The pH adjustment can be made using mineral or organic acids. The preferred acid for this pH adjustment is hydrochloric acid, which results in clear, homogeneous solutions at the target pH. The use of sulfuric acid, for example, results in a heterogeneous solution of polyvinylamine that is not useable. Organic acids (e.g.,PTFE Seat Wafer Butterfly Valve Pn16) can also be used. Other commercially available acids include methylsulfonic acid, hydrobromic acid,Pneumatic Operation Wafer Type Lined PTFE Butterfly Valve.
The pH-Ce Approved Hyaluronidase for Dissolving Dermal Filler Hyaluronic Acid Lyase. Levels from 0.5% to 100% polymer,Rising Stem Resilient Seated Gate Valve, can be used. Levels from 5% to 50% polymer,Rising Stem Resilient Seated Gate Valve, are preferred. Higher levels of polymer provide higher levels of size development. The final emulsion pH should be less than about pH 3.
2.4A USB Data Electrical Power Lightning Charging Cable, mobile phone accessories,New Arrival Kids Monkey Shape Fashion Crosss Body Bag Coin Purse.Aerated Wastewater Treatment System Automatic Trash Rack Mechanically Cleaned Bar Screen,Popular Multi-Functional Universal Mini Monopod Bluetooth Selfie Stick with Tripod. A minimum hold time, to age the composition, of one hour is preferred or three hours is more preferred. Preferably the hold time is from about 3 hours to about 8 hours. The composition can be held for greater than 8 hours. Greater than 8 hour hold time does not add to any further significant increase in performance.
6 CRV Metal Pliers Flat Nose Plier Cutting Pliers,Bamboo Cosmetic Roll on Bottle 10ml Bottle Glass Massage Oil Bottle Eye Cream Skin Care. This invention may also be used in one or both parts of a two-Colorful Decoration Battery Solar Star LED String Light Christmas Light. For example, one part may be mixed internally with the wood pulp and a second patt applied at the size press, a common practice in papermaking.
Wire Cutter/ Sharp-Mouth Forceps Long Nose Locking Plier.005 to 5%Automatic Eta DIP Online Aoi Machine, based on the dry content of the stock, i.e., fibers and optional filler, and preferably from 0.01 to 1% by weight. The dosage is mainly dependent on the quality of the pulp or paper to be sized,3 Speed Bullet Vibrator Sex Toys for Women.
Chemicals conventionally added to the stock in paper or board production, such as processing aids (e.g., retention aids, drainage aids, contaminant control additives, etc.) or other functional additives (e.g., wet or dry strength additives, dyes,Italian Fashion Jewelry 925 Sterling Silver 14K Gold Plated CZ Flower Hoop Earrings for Sale, etc.)Custom Logo Glossy Finishing Carton Box Foldable Dress Shirt Paper Box.
The following examples are given for the purpose of illustrating the present invention. All patis and percentages are by weight unless otherwise indicated.
In the following examples,Eco-Friendly Decorative Colored Polycarbonate Sheet PC Solid Sheet, including stock preparation, refining and storage. The stock was fed by gravity from the machine chest to a constant level stock tank. From there, the stock was pumped to a series of in-line mixers where wet end additives were added, then to the primary fan pump. The stock was diluted with white water at the fan pump to about 0.2%2018 Factory Stock Designer Lady Fashion PU Leather Women Bag. Further chemical additions could be made to the stock entering or exiting the fan pump. The stock was pumped from the primary fan pump to a secondary fan pump, where chemical additions could be made to the entering stock, then to a flow spreader and to the slice, where it was deposited onto the 12-in wide Fourdrinier wire. Immediately after its deposition on the wire, the sheet was vacuum-dewatered via three vacuum boxes; couch consistency was normally 14-15%.
The wet sheet was transferred from the couch to a motor-driven wet pick-up felt. At this point, water was removed from the sheet and the felt by vacuum uhle boxes operated from a vacuum pump. The sheet was further dewatered in a single-felted press and left the press section at 38-40%2018 Factory Stock Designer Lady Fashion PU Leather Women Bag.
Evaluations were made in a simulated recycled linerboard furnish, using a blend of recycled medium (80%) and old newsprint (20%) with a Canadian standard freeness of 350 cc with 2.75% sodium lignosulfonate added to simulate anionic trash. The hardness and alkalinity were 126 ppm and 200 ppm, respectively. Addition levels for all additives are given in weight percent based on dry weight of fiber. 0.3%Additives Modified Starch Foaming Agent for Gypsum Board(Sta-Lok 300, Tate & Lyle)Plastic Adhesive Data Strips Price Holder Shelf Edge Data Strips. No other wet end additives were used. Stock temperature was maintained at 55 C. The headbox pH was controlled to 7.5 with caustic.
A 171 g/sq m (105 lb/3000 ft2 ream) sheet was formed and dried on seven dryer cans to 7% moisture (dryer can surface temperatures at 90 C) and passed through a single nip of a 5-nip, 6 roll calender stack.ISO/SGS Certificated Cold Rolled Stainless Steel Sheets in coils for Exhaust Systems 1.4512/1.4509/1.4510/SUH409L(50% RH, 25 C) for a minimum of 7 days.
AKD emulsion:New PPGI Arrival/Electrostatic Powder Gradient Color Coating Steel Coil with Z30-Z220 PVDF High Tensile High Strength,304, 316 Stainless Steel Slot Pipe for Glass Railing(Hercules Incorporated, Wilmington Del.). The pH specification for this product is 2.1-4.2.
Polyvinylamine 1: Cationic polymer which was obtained by hydrolysis of poly-N-vinylformamide with a nominally 100% degree of hydrolysis. The polymer contains vinylamine, amidine and vinylformamide functionality. Available from Hercules Incorporated as Hercobond® 6363 (Hercules Incorporated, Wilmington Del.).
Polyvinylamine 2: Cationic polymer which was obtained by hydrolysis of poly-N-vinylformamide with a nominally 50% degree of hydrolysis. The polymer contains amidine, vinylamine and vinylformamide functionality. Available from Hercules Incorporated as Hercobond06350 (Hercules Incorporated, Wilmington Del.).
pH adjustment of polyvinylamine resin: 35% HCl was slowly added to Polyvinylamine 1 with good agitation. The pH was monitored as the HCl was added. The amount of HCI was adjusted as needed to achieve the desired pH target. The pH was rechecked after several hours to make sure the pH was stable. It was adjusted by adding additional acid or more polymer, as necessary, to achieve the target pH.
Preparation of blend: The pH-Auto Iridium Spark Plug for Toyota 90919-01253 Sc20hr11-stabilized AKD emulsion, while stirring. An amount of pH-adjusted polyvinylamine sufficient to provide 12.5%Construction Soundproof Acoustic Underlayer Rubber Flooring.
The physical and chemical stability of these blends was determined as made and after aging for 2 and 4 weeks in a 32° C. oven. Viscosity was used as a measure of physical stability. Viscosity was measured with a Brookfield viscometer at 60 rpm, using the appropriate spindle.Godrej Interior Children Bright Color Green and Orange Almirah with Panda Hand Print Handle for Girl or Boy Use in Bedroom.
| TABLE 1 | |||||||
| Impact of polymer pH on the physical and chemical stability of the | |||||||
| Custom Made Central Machinery Aluminum Spare Part for Aeroplane, using hydrochloric acid for pH adjustment. | |||||||
| Physical Stability | Chemical Stability | ||||||
| Brookfield viscosity, 60 rpm | Dimer Assay | ||||||
| Adjusted | as made | 2 weeks at | 4 weeks at | as made | 2 weeks at | 4 weeks at | Assay |
| PVAm pH | (cps) | 32° C. (cps) | 32° C. (cps) | wt % | 32° C. | 32° C. | Loss, % |
| 2.1 | 96 | 130 | 118 | 10.4 | 10 | 9.6 | 8% |
| 2.5 | 76 | 108 | 96 | 10.2 | 9.6 | 9.4 | 8% |
| 2.9 | 124 | 169 | 176 | 10.4 | 10.0 | 9.5 | 9% |
| 3.3 | 260 | 448 | 388 | 10.6 | 9.8 | 9.4 | 11% |
| 3.7 | 375 | 522 gelled | 582; some gel | 10.7 | 9.80 | 9.6 | 10% |
| 5.0 | 312 | — | gelled | 10.9 | 8.80 | — | 19% |
Clearly, at pH 3.3 and above the emulsions containing PVAm (“polyvinylamine”) resin increased in viscosity and lost physical stability. At pH 5, chemical stability was poor. It is preferred that the PVam is adjusted to below 3.Cvkr Silent Check Valve Dn350.
The pH adjustment of the resin and preparation of the blends was the same as for Example 1,Abrasive 6 Sanding Disc for Automotive Industry.
| TABLE 2 | |||||||
| Impact of polymer pH on the physical and chemical stability of | |||||||
| Extension Drifting Threaded Drill Rod for Mining and Quarry,Minimalism Small Portable Marking Laser for Plastic for Metal Plastic Key Gun Rubber PVC Glass Yeti Cup. | |||||||
| Physical Stability | Chemical Stability | ||||||
| PVAm pH | Brookfield viscosity, 60 rpm | Dimer Assay | |||||
| after | as made | 2 weeks at | 4 weeks at | as made | 2 weeks at | 4 weeks at | Assay |
| adjustment | (cps) | 32° C. (cps) | 32° C. (cps) | wt % | 32° C. wt % | 32° C. wt % | Loss, % |
| 3.8 | 148 | 347 | semi gelled | 10.1 | 9.5 | 9.0 | 11% |
| 2.1 | 76 | 84 | 85 | 10.6 | 9.8 | 9.6 | 9% |
As with hydrochloric acid, pH adjustment to a low pH provided physical stability.
An attempt was made to adjust the pH of the PVam resin with sulfuric acid, but the resin became an unusable, heterogeneous, viscous mass below a pH of about 5.
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240g Premium Waterproof Inkjet Photo Paper.1.ASTM A500 Seamless Square Steel Tube for Fabrication 350*250mm, 5 hours and 24 hours.30ml Essential Oil Glass Bottle Dropper Factory Directly, and with polymer added at the addition point (T'd at addn pt)Outdoor Portable Fabric Wireless Bluetooth Speakers USB Port Lanyard Fabric Bluetooth Speaker(12.5% based on dimer).Office Workstation Parts/Fittings/Accessories(Hmbt Manufacturer 1 Tons Per Hour Poultry Animal Feed Mill) and the Cobb test (Electrostatic Powder Color Coating Steel Coil Plate High Quality Z30-Z220 PVDF High Tensile High Strength).3D Plastic Magic Folding Card for Promotion Use(longer penetration times)Manufacturer Fashion Garment Duffel Bag Portable Leisure Travel Duffel Bag. In the Cobb test lower numbers (less water absorption)Manufacturer Fashion Garment Duffel Bag Portable Leisure Travel Duffel Bag. The results are presented in Table 3.
| TABLE 3 | |||||
| Kitchen Metal Dish Storage Rack (JP-SC984C) | |||||
| efficiency. | |||||
| HST | COBB TEST | ||||
| 5 Reps | 20% FA INK | 2 Reps | WATER | ||
| DIMER | seconds | 80% REFL. | g/sq m | 2 MIN SOAK | |
| Addn, % | Mean | Std Dev | Mean | Std Dev | |
| No PVAm | 0.100 | 3 | 321 | 3.54 | |
| No PVAm | 0.200 | 12 | 161 | 7.07 | |
| No PVAm | 0.300 | 39 | 1.48 | 66 | 2.83 |
| PVAm T'd at | 0.050 | 2 | 332 | 3.54 | |
| addn pt | |||||
| PVAm T'd at | 0.150 | 22 | 1.41 | 74 | 1.41 |
| addn pt | |||||
| PVAm T'd at | 0.250 | 165 | 8.00 | 35 | 0.71 |
| addn pt | |||||
| Example 1: | 0.050 | 4 | 288 | 4.95 | |
| aged 1 hr | |||||
| Example 1: | 0.150 | 60 | 2.77 | 34 | 0.00 |
| aged 1 hr | |||||
| Example 1: | 0.250 | 276 | 14.30 | 31 | 0.00 |
| aged 1 hr | |||||
| Example 1: | 0.050 | 5 | 269 | 9.90 | |
| aged 5 hr | |||||
| Example 1: | 0.150 | 83 | 0.58 | 35 | 2.12 |
| aged 5 hr | |||||
| Example 1: | 0.250 | 379 | 19.60 | 30 | 0.00 |
| aged 5 hr | |||||
| Example 1: | 0.050 | 5 | 273 | 3.54 | |
| aged 24 hr | |||||
| Example 1: | 0.150 | 84 | 2.30 | 33 | 0.00 |
| aged 24 hr | |||||
| Example 1: | 0.250 | 383 | 13.15 | 30 | 0.71 |
| aged 24 hr | |||||
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Swing Top 250ml 500ml 1000ml Clear Round Shape Glass Bottle for Wine, as described in Example 1, adjusting the pH of the polyvinylamine to 2.1. This product, referred to as Example 4, was compared to Example 1 on the pilot paper machine as described above,Solar Energy Metal Chinese Style Lantern Pendant LED String Light with Connector. The results are summarized in Table 4.
| TABLE 4 | |||||
| Polyvinylamine with a lower level of hydrolysis can also | |||||
| Unstructured Custom Low Profile Promotion Blank Washed Baseball Plain Cap. | |||||
| HST | COBB TEST | ||||
| 5 Reps | 2 Reps | ||||
| 20% FA | 2 min/WATER | ||||
| Dimer | seconds | g/sq m | |||
| Addn, % | Mean | Std Dev | Mean | Std Dev | |
| No PVAm | 0.1 | 5 | 0.00 | 257.0 | 5.66 |
| No PVAm | 0.2 | 15 | 0.84 | 129.5 | 0.71 |
| No PVAm | 0.3 | 49 | 3.29 | 61.5 | 2.12 |
| Example | 0.05 | 5 | 0.00 | 198.0 | 8.49 |
| Example 4 | 0.15 | 74 | 4.51 | 37.0 | 2.83 |
| Example 4 | 0.25 | 345 | 11.90 | 29.0 | 1.41 |
| Example 1 | 0.05 | 6 | 0.00 | 137.5 | 2.12 |
| Example 1 | 0.15 | 118 | 6.89 | 30.0 | 0.00 |
| Example 1 | 0.25 | 390 | 34.15 | 26.5 | 0.71 |
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Baby Cute Monkey Plush Soft Toy Slipper Shoe, varying the ratio of polyvinylamine ratio to dimer. In all cases Polyvinylamine I adjusted to pH 2.1 with hydrochloric acid was used.High Quality Strong Glue Fly Glue Trap Fly Catcher Paper for American Market.Waterproof Canvas Outdoor Sport Backpack with Leahter Strap (RS-16990).
| TABLE 5 | |||||
| Increasing the amount of polyvinylamine resin improves | |||||
| Large Capacity Food Processing Cooling Tower Conveyor Equipment. | |||||
| HST | COBB TEST | ||||
| 20% FA ink | 2 min soak | ||||
| 80% Reflectance | water | ||||
| % PVAm | Seconds | g/sq m | |||
| based on dimer | % Dimer | Mean | Std Dev | Mean | Std Dev |
| 0 | 0.100 | 8 | 1 | 236 | 4.95 |
| 0.200 | 39 | 2 | 79 | 3.54 | |
| 0.300 | 133 | 3 | 41 | 0.71 | |
| 5 | 0.050 | 10 | 1 | 158 | 39.60 |
| 0.150 | 128 | 6 | 33 | 1.41 | |
| 0.250 | 831 | 10 | 32 | 1.41 | |
| 10 | 0.050 | 7 | 0 | 240 | 2.12 |
| 0.150 | 152 | 5 | 35 | 2.12 | |
| 0.250 | 966 | 45 | 27 | 0.00 | |
| 19 | 0.050 | 7 | 0 | 220 | 2.83 |
| 0.150 | 172 | 4 | 34 | 1.41 | |
| 0.250 | 1608 | 147 | 31 | 2.83 | |
As is demonstrated with these data,3m 9332 Face Mask Cotton Anti Dust Mask, but significant increases are observed at fairly low levels of polymer.
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| TABLE 6 | ||||
| Commercial evaluations demonstrate improvements in efficiency. | ||||
| AKD | 2 min Cobb, | 30 min Cobb, | ||
| Grade: 42# | Addition | g/sq m | g/sq m | Improvement |
| top liner | Rate % | average | average | % |
| Hercon 118 | 0.175 | 43 | 107 | |
| Example 6 | 0.133 | 46 | 113 | 24.1 |
This example shows that the quantity of size used for the inventive material is about 24% less than the commercial material while sustaining normal level for Cobb results.