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
1991-01-25
1993-04-27
Schofer, Joseph L.
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...
524556, 524429, 524522, 5253299, 5253302, 525369, 525378, 525380, C08K 505
Patent
active
052062791
ABSTRACT:
Aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers (e.g., random ethylene/acrylic acid interpolymers) are formed using a mixture of bases at a concentration of at least about 0.2 equivalents of base per mole of .alpha.,.beta.-unsaturated carboxylic acid. The dispersions have at least about 10 weight percent dispersed solids and not more than about 1 weight percent of the initial polymer in non-dispersed form. Preferred bases for use in forming the dispersions are ammonium hydroxide and/or alkali metal hydroxides. A mixture of ammonium hydroxide and potassium hydroxide is especially preferred for forming the dispersions with ethylene/acrylic acid interpolymers at an ammonium hydroxide:acrylic acid molar ratio of about 1:1 and a potassium hydroxide:acrylic acid molar ratio in the range of about 0.6-0.8:1. The dispersions are particularly useful in forming thin coatings of adhesive on substrates, such as paper and metal foil, using conventional techniques.
REFERENCES:
patent: 3347811 (1967-10-01), Bissot
patent: 3389109 (1968-06-01), Harmon et al.
patent: 3427280 (1969-02-01), Imhof
patent: 3472825 (1969-10-01), Walter et al.
patent: 3511799 (1970-05-01), Clampitt
patent: 3541033 (1970-11-01), Buttrick
patent: 3644258 (1972-02-01), Moore et al.
patent: 3677989 (1972-07-01), Jenkinson
patent: 3790521 (1974-02-01), McCann et al.
patent: 3798194 (1974-03-01), McCann et al.
patent: 3799901 (1974-03-01), McCann et al.
patent: 3970626 (1976-07-01), Hurst et al.
patent: 4173669 (1979-11-01), Ashida et al.
patent: 4410655 (1983-10-01), Funakoshi et al.
Rowland Michael E.
Springs Kenneth E.
Reddick J. M.
Schofer Joseph L.
The Dow Chemical Company
LandOfFree
Method of preparing aqueous dispersions of ethylene/.alpha.,.bet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of preparing aqueous dispersions of ethylene/.alpha.,.bet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing aqueous dispersions of ethylene/.alpha.,.bet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2327628