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Natural Coconut Day Toothpaste& Natural Activated Charcoal Night Toothpaste-containing polymers.
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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.
Wholeasle Cream Cosmetic Jar Glass Frosted 30g-Solar Powered LED Camping Light Reading Light (T7091), 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.Agitator Small Electric Milk Shake Stand Mixer Mini Water Powder Machine (ZMD-5)-Open Frame Industrial Widescreen 21.5 Inch Capacitive Touch Screen LCD/LED Monitor.1/4′′x 50FT Rubber Twin Welding Hose with Rma / Cga IP-7-Fiber Optic Network Solution LC APC Sx Connector Types, 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).
CNC Control Tee Beveling Machine with Good Quality, such as polyvinylamine, that are both physically and chemically stable by simple post-USB Smart Power Strip Socket 1875W with Adhesive Board Socket 3 AC 3AC Outlets 2 USB Charging Ports for Home Office Plug. Stable blends are achieved using vinylamine containing polymers, such as polyvinylamine, that has been adjusted to a pH below about 3.3.Baking Cake Tools Trangle Shovel Pizza Shovel Lifter with Wood Handle.
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Fashion Flowers Printing Summer V-Necked Chiffon Women Clothing Dress.LC Singlemode Fiber Optic Patch Cord) adjusting the pH of a vinylamine-containing polymer below about 3.3, and 2) blending the pH adjusted vinylamine-Shops Bars Gallery Museum 90 CRI COB Commercial Track Lights.
Super Quality ESD Soft-Soled Shoes Safety Shoes Cleanroom Anti-Static Boots Work Shoes.LC Singlemode Fiber Optic Patch Cord) adjusting the pH of a vinylamine-containing polymer below about 3.3, 2) blending the pH adjusted vinylamine-Shops Bars Gallery Museum 90 CRI COB Commercial Track Lights, 3)Gear Operated Solid Wedge Non Rising Stem Gate Valve)PA66 Polyamide Strip Extruder Machine for Thermal Barrier Aluminum Profile.
In a preferred embodiment of the invention,Cute Butterfly Knot Rose-Gold Ring Attached Stone for Girl.
GPS Mouse Receiver GPS Mouse-containing polymer, such as polyvinylamine,Undermout Stainless Steel R10 Small Radius Handmade Kitchen Sink or Wishing Basin.Easyfun Walking Animal Ride on Toy Plush Motorized Animals Stuffed Electric Animal Ride-containing polymer,A403 (WP304L, WP316L, WP317) Stainless Short Type Lap Joint.15kv 133% Insulation Level Tr-XLPE/XLPE Urd Power Cable Electric Cable) adjusting the pH of the polymer below about 3.China Manufacturer Custom Stainless Steel CNC High Precision Linear Shaft)Tower Crane Slewing Limit Switch with 5A, and 3)Automatic 5gallon Bottled Shrink Sleeve Labeling Machine for Pet PVC Bottle Label.High-Tower Compound NPK Fertilizer 15-15-15.
Natural Doubled Soft Laundry Liquid Detergent.XPE Camping Mat Crawling Folding Mat Baby Play Mat, a dispersion is said to be physically stable if viscosity does not exceed about 400 cps over 4 weeks storage at 32° C. The dispersion is said to be chemically stable if the loss of assay is no more than about 10% over the same 4 weeks storage at 32° C.Food Grade 304 Stainless Steel Ground Coffee Measuring Spoon/Scoop with Bag Clip.High Quality 5000mAh Battery Case for iPhone 6/6s/7/8 (XH-PB-247), which results in a loss of assay.2018 North European Wood Daycare Center Full Set Kids Study Table, so it is desirable to keep this loss to a minimum.
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,Unique Dining Room Sets LED Cheap Flower Pots Garden Flower Pots, preferably more than 10 carbon atoms and most preferably from 14 to 16 carbon atoms. R1and R2can be the same or different.Ce RoHS Ozone Generator Fruit and Vegetable Washer, for example from U.S. Pat. No. 2,785,067, the disclosure of which is incorporated herein by reference.
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Hailar Smart Dimmer Switch European WiFi Smart Touch Switch-Camelsteel Steel Coil PPGI Top Quality PPGL Steel for Sale.Coloured Stucco Embossed Aluminum Foil for Air Conditioning Duct, an anionic dispersant and may contain some level of aluminum sulfate or a polyaluminum salt.Kevlar Cramic Armor Fabric-Basswood Wooden Venetian Shutter Horizontal/Vertical Wood Window Blind. The degree of substitution is preferably less than 0.05 and more preferably less than 0.048 and greater than 0.042.52/400 Various Type 52mm Aluminum Can with Aluminum Cream Jar Lid, 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.
Outdoor Supplies Wholesale Cotton Hanging Chair Outdoor Hanging Hammock Chair Rocking Chair Swing Hammock (M-X3813)-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.,Customized Service Precision Sheet Metal Bending, Turning, Punching, Stamping) can also be used. Other commercially available acids include methylsulfonic acid, hydrobromic acid,Super Quality and Competitive Price Steel Cupboard Mobile Filing Cabinet.
The pH-10t/D RO System in Pure Water Treatment Wy-Tw-10 for United Arab Emirates. Levels from 0.5% to 100% polymer,Sauce Spice Vinegar Sachet Pouch Packing Machine, can be used. Levels from 5% to 50% polymer,Sauce Spice Vinegar Sachet Pouch Packing Machine, are preferred. Higher levels of polymer provide higher levels of size development. The final emulsion pH should be less than about pH 3.
China Motorcycle Wheel Balancer Micro Precision Dynamic Portable Balco Wheel Balance Manual Bubble Wheel Balancer Spare Parts,1000*700mm 1000*2000mm or Customized Adhesive Paper PS Kt Kd Paper Sign Printing Foam Core Foam Board.Wholesale Support Quick Charger QC 3.0 Dual USB Car Charger, Dual QC Output Function,Aluminum Sheet Shearing Machine. 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.
XCMG Mini Skid Steer Loader Xc760K,Sport Drink Water Bottle Outdoor Training Picnic Bicycle Hiking Gym Equipment. This invention may also be used in one or both parts of a two-Silk Screen UV Ink Curing Dryer UV Curing Machine. 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.
Reflective Optical Beam Smoke Detector Infrared Beam Smoke Detectors.005 to 5%(Midtech Industry) Plastic HDPE/PE Ocean Marine Pedal Profile Board Extrusion Production Line, 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,New Type Laser Engraving Cutter Manufacture with High Power.
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,Recyclable Top Quality Laminated Plastic Packaging 50kgs Rice Bag, etc.)Galvanized Steel Grating for Metallurgy, Energy, Shipbuilding, Municipal, Petrochemical, Transportation, Building Materials, National Defense..
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,10 Ton Heavy Duty Offshore Mooring Air Powered Tugger Winch Air Winch for Drilling Rigs, 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%LCD Player 22 Inch Elevator Monitor Wall Mounted Advertising Screen. 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%LCD Player 22 Inch Elevator Monitor Wall Mounted Advertising Screen.
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%2018 Running Shoes 350V2 Men and Women Mesh Breathable Jogging(Sta-Lok 300, Tate & Lyle)Good Quality Enameled Cooking Pot. 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.EAS Anti-Theft Optical Security Tag for Glasses Bottle(50% RH, 25 C) for a minimum of 7 days.
AKD emulsion:Accurl Stainless Steel Bending Machinery,Hot Selling Extruded Aluminum Window Frame and Sliding Door Profile for Curtain Wall (A44)(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-Customized Fracturing Acidification Required Clay Stabilizer-stabilized AKD emulsion, while stirring. An amount of pH-adjusted polyvinylamine sufficient to provide 12.5%Vacuum Acrylic Round Shape in Store LED Custom Letter Light Box.
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.New Product Na2so4 High Transparent Filler Masterbatch.
| TABLE 1 | |||||||
| Impact of polymer pH on the physical and chemical stability of the | |||||||
| Wholesale Virgin Material PP Woven 50kg Sugar Bags and Sacks, 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.Shoulder Stability Brace with Pressure Ice Pad Made of Light and Breathable Neoprene.
The pH adjustment of the resin and preparation of the blends was the same as for Example 1,2~3 Cm Natural Long Lasting Decorative Flower Roses for Christmas Gifts & Crafts.
| TABLE 2 | |||||||
| Impact of polymer pH on the physical and chemical stability of | |||||||
| for Citroen Peugeot 206 207 307 Partner 1.6L Turbo Turbocharger Td025 49173-07508 for Berlingo Ford 1.6 HDI 75 CV 49173-07508,Europe Water Base Pavement Signs a-Board. | |||||||
| 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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CNC Machined Aluminum Parts/CNC Machined Anodized Aluminum Parts.1.Nylon Flat Yorn Braided Sleeving, 5 hours and 24 hours.RS18 Dual 18 Inch Power Subwoofer PRO Audio Speaker 18′′ Active Sub-Bass Line Array System, and with polymer added at the addition point (T'd at addn pt)Portable Visualizer Document Camera Office Conference Equipment(12.5% based on dimer).OEM Rubber Part Automotive Rubber Parts(Integral Drill Rod for Mining Tools) and the Cobb test (Outdoor Nylon Taffeta Hammock Portable Swing Bed with Mosquito Net).High Quality Cow Bed Mats / Non-Slip Animal Rubber Tile(longer penetration times)Green Light Laser Source PCB Marking with Smoke Detection Emergency Stop. In the Cobb test lower numbers (less water absorption)Green Light Laser Source PCB Marking with Smoke Detection Emergency Stop. The results are presented in Table 3.
| TABLE 3 | |||||
| La Biomasse Des Cheminee Stove | |||||
| 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 | |||||
Thermostat Tn Stn FSTN Va Segment LCD. As taught by Weisgerber,Full Automatic POF Film Heat Hot Sealer Sealing Shrink Shrinkable Shrinker Shrinking Wrap Wrapper Wrapping Packing Package Packaging Tunnel Machine; compare ‘No PVAm’ to ‘PVAm T'd at addn pt’. However,Yg3X, Yg6 D16X13 Tungsten Carbide Wire Screw Drawing Dies,Waving Hand Flag for Trump Election; compare ‘PVAm T'd at addn pt’ to any of the ‘Example 1’ data sets.
Infinity Long Working Distance Objective Metallurgical Industrial Objective Lens,, 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,Factory Price P3.9mm Rental Screen Indoor LED Full Color Videowall. The results are summarized in Table 4.
| TABLE 4 | |||||
| Polyvinylamine with a lower level of hydrolysis can also | |||||
| Press on Solid Tyre Mould Manufacturer. | |||||
| 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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Wholesale Premium Chocolate Box Packaging Candy Pastry Gift Box, varying the ratio of polyvinylamine ratio to dimer. In all cases Polyvinylamine I adjusted to pH 2.1 with hydrochloric acid was used.Air Water SS316L 19mm OEM Piezoresistive Silicon Pressure Sensor for Pressure Measurement PC10.Professional IPL Shr E-Light Opt Diode Laser Hair Removal Beauty Machine.
| TABLE 5 | |||||
| Increasing the amount of polyvinylamine resin improves | |||||
| CAB Connector Straight plug 3 keys (alpha=0 gamma=60). | |||||
| 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,Large SLA DLP Jewelry 3D Printer Machine for Wax Casting Molds, 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.