Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1986-11-17
1988-09-20
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 29, 524 31, 524 32, 524 35, 524 37, 524 38, 524 39, 524 40, 524 41, 524 42, 524 43, 524 44, 524 45, 524 46, 524 47, 524 48, 524 50, 524 51, 524 52, 524 53, 524 54, 524 55, 523336, C08J 302, C08L 128, C08L 500, C09K 700
Patent
active
047726466
ABSTRACT:
The present invention relates to a liquid suspension of a high molecular weight, water-soluble polymer or water-soluble salt prepared by admixing and water-soluble polymer with a hydrocarbon carrier fluid and a suspending agent comprising an aqueous emulsion of a copolymer comprising a water-insoluble and substantially hydrocarbon-insoluble polymer consisting of particles having a dry weight average particle size of below 10 .mu.m and which is formed from monomers of which 80% to 100% are hydrophobic, 30 to 100% are polar and 0% to 20% are hydrophilic. More particularly, the copolymer comprises from about 80% to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0% to about 20% hydrophilic monomers. Preferably, the copolymer comprises 90% to 100% 2-ethylhexylacrylate and from about 0.5% to about 10% acrylic acid. The liquid suspension is capable of supporting about 5 pounds of water-soluble polymer per gallon of suspension.
REFERENCES:
patent: 4312675 (1982-01-01), Pickens et al.
patent: 4435217 (1984-03-01), House
patent: 4670501 (1987-06-01), Dymond et al.
Harms Weldon M.
Norman Lewis R.
Halliburton Company
Kent Robert A.
Kight John
Nutter Nathan M.
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