摘要:
Water-based anti-blemish paints useful for coating the outside of tires prior to final shaping and curing is disclosed.Typical compositions have the following formula:______________________________________ Ingredients % By Weight ______________________________________ Water 65-85 Surfactant 0.1-2 Carbon Black 10-25 Particulate Lubricant 1-8 Elastomer Latex 2-10 ______________________________________
摘要:
As antifoulants in the processing of crude oil to minimize deposition of condensates and polymeric deposits on heat exchangers, compounds of the following structure have been utilized: ##STR1## X = OH, NH.sub.2, NHR, NHCH.sub.2 CHOHR (R = straight or branched chain alkyl containing 2 to 20, preferably 6 to 16, carbon atoms.)Y = h, ch.sub.2M = ammonia, amine containing 1-54 carbons where the total number of carbon atoms in X and M is .gtoreq. 8 but .ltoreq. 54.n .gtoreq. 1As preferred compounds, sulfanilic acid amine salts are preferred in the above formula where X = NH.sub.2, NHR, NHCH.sub.2 CHOHR.Also preferred are phenolic compounds which are sulfonated and subsequently partially or completely neutralized with amines as in the above formula where X = OH.The compounds show an effective dosage range from about 40 ppm to 300 ppm and the effective percent reduction in fouling in crude oils ranging from 42-94%.
摘要:
Substituted succinic acids and salts thereof having the formula: ##STR1## where R is H or ##STR2## and M is H, alkali metal, or an amine, are useful as chelants and stabilizers for heavy metal ions.
摘要:
A method and apparatus for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.
摘要:
A method for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.
摘要:
An improved method for scavenging dissolved oxygen from alkaline waters which comprises treating said waters with at least 10 ppm of methylene blue in its reduced or leuco base form.
摘要:
Water-based anti-blemish paints useful for coating the outside of tires prior to final shaping and curing is disclosed.Typical compositions have the following formula:______________________________________ Ingredients % By Weight ______________________________________ Water 65-85 Surfactant 0.1-2 Carbon Black 10-25 Particulate Lubricant 1-8 Elastomer Latex 2-10 ______________________________________
摘要:
There is provided an adhesive system comprised of a pressure-sensitive adhesive matrix having dispersed. therein organic particulate solids having a particle size no greater than 300 microns, and generally no greater than 225 microns, which matrix may have at least one, and generally two, sides coated with an unfilled pressure-sensitive adhesive material, which adhesive materials generally may be acrylic materials. Such adhesive system is one generally provided as a sheet, including elongated tapes, having a thickness of from about 25 to 60 mils.
摘要:
An adhesive system having a pressure-sensitive adhesive matrix and dispersed therein particulate solids wherein the adhesive system has a light transmission within the range of 15 to 80 percent transmission, and preferably 25 to 75 percent transmission. The adhesive system may include a coating of untilled pressure sensitive material. The particulate solids preferably have a particle size no greater than 300 microns, and may be organic particulate solids, preferably certain polymeric compositions.