Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-08-14
1981-11-24
Wong, Jr., Harry
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
260 174R, 260 22CB, 260 332R, 260 332EP, 260 334R, 260 334EP, 260 334UR, 260 336EP, 260 336UB, 260 336UA, 525328, 525375, 525379, 525383, 525385, 525386, 526265, 526312, 528392, C08F 800, C08F22034
Patent
active
043025617
ABSTRACT:
Pigment dispersants for use in coating compositions wherein the dispersant is the polymerization product of (i) an alkyl methacrylate having from 3 to 8 carbon atoms in the alkyl group, (ii) a hardening monomer selected from the group consisting of a styrene, methyl methacrylate, ethyl methacrylate and mixtures thereof, (iii) an ethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acids, itaconic acid, crotonic acid, maleic acid, fumaric acid and mixtures thereof or a monomer having a double bond alpha-beta to a carbonyl group and which provides carboxyl functionality when reacted with water, alcohol, amine or anhydride, (iv) a monomer having a double bond alpha-beta to a carbonyl group and at least one hydroxyl group or a monomer which provides such groups when further reacted with an acid or an epoxide, and (v) a compound providing an amine or amine salt functional moiety. The dispersants are useful for dispersing pigments in coating compositions containing a wide variety of film-forming resins.
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Becher David Z.
Christenson Roger M.
Coalson Richard L.
Pierce Percy E.
Schimmel Karl F.
PPG Industries Inc.
Wilson Charles R.
Wong, Jr. Harry
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