Corrosion resistant waterbone adhesive primers
US5260357A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31522
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An adhesive bonding primer composition containing a water-dispersible, modified epoxy resin and a water-dispersible corrosion inhibitor mixture of components I. and II. in which: Component I. is at least one, but not more than two of: PA1 (a.) a zinc salt of a carboxylic acid of the formula: ##STR1## (b.) zinc phosphate, and (c.) zinc molybdate, wherein Y.sub.4 is hydroxyl or a radical of the formula: ##STR2## Y.sub.3 is --CO-- or --SO.sub.2 --, Y.sub.1 is C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy or halogen when Y.sub.4 is other than hydroxyl, carboxyl when Y.sub.4 is hydroxyl, or hydrogen when Y.sub.4 is ##STR3## or Q.sup.1 is nitro, or m is 2, Y.sub.2 is hydrogen, C.sub.1 -C.sub.8 -alkyl, nitro, hydrogen or halogen, Q.sup.1 is hydrogen, nitro or halogen, m and n are each 1 or 2; and Component II. is at least one other and different corrosion inhibitor from the group consisting of: PA1 i) (2-benzothiazolylthio)succinic acid, and PA1 ii) a corrosion inhibitor containing a metal other than chromium, having an atomic number of at least 3 and not greater than 81, from Groups 1, 2, 3, 4, 5, 6, 7 and 12 of the Periodic Table of the Elements (New Notation), and mixtures thereof.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.