Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1996-12-30
1997-11-18
Lesmes, George F.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524284, 524361, 524364, 524534, 524575, 525 89, C08J 307, C08K 501, C08L 5300
Patent
active
056888562
ABSTRACT:
This invention is a process for producing stable polymer emulsions and latexes with an average particle size of less than one micron. The polymers are hydrogenated block copolymers of conjugated dienes and vinyl aromatic hydrocarbons which may or may not contain polar functionality. The process comprises making a polymer cement of the polymer and a blend of a non-aromatic solvent for the vinyl aromatic hydrocarbon block which is immiscible with water and a non-aromatic cosolvent, emulsifying the polymer cement by adding it to an aqueous phase containing at least one surfactant and removing the solvent, cosolvent and excess water.
REFERENCES:
patent: 3238173 (1966-03-01), Bailey et al.
patent: 3360599 (1967-12-01), Nyberg et al.
patent: 3445414 (1969-05-01), Glymph et al.
patent: 3726824 (1973-04-01), Saunders et al.
patent: 3839258 (1974-10-01), Visseren et al.
patent: 4177177 (1979-12-01), Vanderhoff et al.
patent: 4331581 (1982-05-01), Davison
patent: 4942209 (1990-07-01), Gunesin
patent: 5100938 (1992-03-01), Vitkuske et al.
patent: 5292795 (1994-03-01), Southwick et al.
patent: 5336712 (1994-08-01), Austgen, Jr. et al.
patent: 5358981 (1994-10-01), Southwick
"Rheological and Morphological Behavior of Styrene-Butadiene Diblock Copolymer Solutions in Selective Solvents," by H. Watanabe and T. Kotaka, Journal of Rheology, vol. 26, pp. 153-179, 1982.
"Micelles of Block and Graft Copolymers in Solutions," by Z. Tuzar and P. Kratochvil, Surface and Colloid Science, E. Matijevic Ed. Plenum Press, New York, vol. 15, pp. 1-83, 1993.
P. 386 from Chapter VII "Solvents and Non-Solvents for Polymers," by O. Fuchs, Polymer Handbook, 3rd Ed., J. Brandrup and E. H. Immergut (Editors), John Wiley & Sons, New York, 1989.
Kraton.RTM. Polymers Presentation Vugraph, Oct. 28, 1993.
Austgen, Jr. David M.
Southwick Jeffrey G.
Yang Bing
Haas Donald F.
Lesmes George F.
Rajguru U. K.
Shell Oil Company
LandOfFree
Process for making submicron stable latexes of hydrogenated bloc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making submicron stable latexes of hydrogenated bloc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making submicron stable latexes of hydrogenated bloc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1566200