N-acyl aminomethylene phosphonates and their use in waterborne c

Details N-acyl aminomethylene phosphonates and their use in waterborne c N-acyl aminomethylene phosphonates and their use in waterborne c

1994-09-12

1995-07-04

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106 1412, 106 1415, 10628724, 10628725, 106499, 106503, 106403, 25238921, 25240021, 25240022, 558155, 558158, 558169, 562 15, 562 16, C09C 162, C09C 164, C09C 308

Patent

active

054296749

ABSTRACT:
N-acyl aminomethylene phosphonates are provided having a group defined by the following general formula: ##STR1## wherein R.sub.1 is hydrogen, an aliphatic radical having 1 to 25 carbon atoms, or an aromatic radical having 6 to 25 carbon atoms; R.sub.2 is hydrogen, an aliphatic radical having 1 to 25 carbon atoms, or an aromatic radical having 6 to 25 carbon atoms; and R.sub.3 is a group remaining after reaction of a hydroxyl group-containing or epoxy group-containing polymer with an acidic hydrogen of a ##STR2## group. Also provided are waterborne coating compositions containing metallic pigments which are normally reactive with water or moisture to release hydrogen gas, stabilized against gassing by incorporation of these N-acyl aminomethylene phosphonates into the waterborne coating compositions.

REFERENCES:
patent: 4621112 (1986-11-01), Backhouse et al.
patent: 4675358 (1987-06-01), Frangou
patent: 4851159 (1989-07-01), Fields et al.
patent: 4916176 (1990-04-01), Vachlas et al.
patent: 5034556 (1991-07-01), Kahle, II
patent: 5041627 (1991-08-01), Baysdon et al.
patent: 5057156 (1991-10-01), Kuwajima et al.
patent: 5233080 (1993-08-01), Heinsohn

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