US3907737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal coating composition of water insoluble binder and water soluble thickener
Assignee: BASF SE
•
Filing: 1973-03-02
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Granted: 1975-09-23
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Expires: 1993-03-02
Abstract
Abstract Coating, impregnating and bonding agents consisting of suspensions in aqueous solutions of organic polymeric materials of finely divided binders which are insoluble or at the most only slightly swellable in water, which are curable by heat, which are based on polymerizates, polycondensates or polyadducts and which may contain further substances. The suspensions are particularly suitable for coating and impregnation.
Inventors
- 👤 Matthias Marx
- 👤 Gerhard Storck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:11
CPC Classifications
C; C08; C08L; C08L101/00; C09; C09D; C09D201/00; Y; Y10; Y10S; Y10S525/00; Y10S525/934
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
229 words
A METAL COATING COMPOSITION CONSISTING ESSENTIALLY OF A. FROM 40 TO 70 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE COMPOSITION OF WATER: B. FROM 30 TO 60 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE COMPOSITION OF AT LEAST ONE HEAT-CURABLE BINDER WHICH IS INSOLUBLE OR AT THE MOST SLIGHTLY SWELLABLE IN WATER, AND WHICH IS DISPERSED IN COMPONENT A IN THE FORM OF PARTICLES HAVING A SIZE OF FROM 0.1 TO 150 MICRONS, THE BINDER BEING A SYNTHETIC RESIN SELECTED FROM THE GROUP CONSISTING OF A POLYMERIZED ETHYLENICALLY UNSATURATED MONOMERS, B. 1, 2 EPOXY RESINS OBTAINED BY REACTION OF POLYHYDROXY COMPOUNDS WITH EPICHLOROHYDRIN, C. SATURATED AND UNSATURATED POLYERSTERS FROM A POLYCARBOXYLIC ACID AND A POLYDRIC ALCOHOL, D. AMINO RESINS, SAID AMINO RESINS BEING CROSSLINKABLE UREA-, MELAMINE-OR BENZOQUAMINE-FORMALDEHYDE PRECONDENSATES, AND E. POLYURETHANE FORMING MIXTURES OF BLOCKED POLYISOCYANATES AND SATURATED POLYESTERS WITH OH NUMBERS OF FROM 20 TO 220: AND C. FROM 0.1 TO 5% BY WEIGHT BASED ON THE WEIGHT OF THE COMPOSITION OF AT LEAST ONE THICKNER DISSOLVED IN WATER, WHICH HAS A VISCOSITY OF FROM 0.5 TO 50 CENTIPOISES IN A 0.015% AQUEOUS SOLUTION AT 20*C: SAID THICKNER BEING AN ORGANIC POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF A. SALTS OF POLYACRYLIC ACID, B. CARBOXYMETHYLCELLULOSES, C. METHYLCELLULOSES D. POLYVINYLPYRROLIDONE E. POLYACRYLAMIDE F. POLYMETHACRYLAMIDE. G. POLYMERS OF AMMONIUM ACRYLATE, AMMONIUM ETHACRYLATE OF DIMETHYLAMMONIUM HYDROCHLORIDE.
Claim 2
Dependent Claim
229 words
A METAL COATING COMPOSITION CONSISTING ESSENTIALLY OF A. FROM 40 TO 70 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE COMPOSITION OF WATER: B. FROM 30 TO 60 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE COMPOSITION OF AT LEAST ONE HEAT-CURABLE BINDER WHICH IS INSOLUBLE OR AT THE MOST SLIGHTLY SWELLABLE IN WATER, AND WHICH IS DISPERSED IN COMPONENT A IN THE FORM OF PARTICLES HAVING A SIZE OF FROM 0.1 TO 150 MICRONS, THE BINDER BEING A SYNTHETIC RESIN SELECTED FROM THE GROUP CONSISTING OF A POLYMERIZED ETHYLENICALLY UNSATURATED MONOMERS, B. 1, 2 EPOXY RESINS OBTAINED BY REACTION OF POLYHYDROXY COMPOUNDS WITH EPICHLOROHYDRIN, C. SATURATED AND UNSATURATED POLYERSTERS FROM A POLYCARBOXYLIC ACID AND A POLYDRIC ALCOHOL, D. AMINO RESINS, SAID AMINO RESINS BEING CROSSLINKABLE UREA-, MELAMINE-OR BENZOQUAMINE-FORMALDEHYDE PRECONDENSATES, AND E. POLYURETHANE FORMING MIXTURES OF BLOCKED POLYISOCYANATES AND SATURATED POLYESTERS WITH OH NUMBERS OF FROM 20 TO 220: AND C. FROM 0.1 TO 5% BY WEIGHT BASED ON THE WEIGHT OF THE COMPOSITION OF AT LEAST ONE THICKNER DISSOLVED IN WATER, WHICH HAS A VISCOSITY OF FROM 0.5 TO 50 CENTIPOISES IN A 0.015% AQUEOUS SOLUTION AT 20*C: SAID THICKNER BEING AN ORGANIC POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF A. SALTS OF POLYACRYLIC ACID, B. CARBOXYMETHYLCELLULOSES, C. METHYLCELLULOSES D. POLYVINYLPYRROLIDONE E. POLYACRYLAMIDE F. POLYMETHACRYLAMIDE. G. POLYMERS OF AMMONIUM ACRYLATE, AMMONIUM ETHACRYLATE OF DIMETHYLAMMONIUM HYDROCHLORIDE.
Claim 3
Dependent Claim
29 words
The composition of claim 1, wherein the particles of component (B) contain at least one other additive from the group consisting of pigments, fillers, crosslinking catalysts, accelerators, and plasticizers.
Claim 4
Dependent Claim
21 words
The composition of claim 1, wherein the particles of component (B) have a particle diameter of from 5 to 90 microns.
Claim 5
Dependent Claim
32 words
The composition of claim 1 wherein the heat-curable binder (B) has at 125*C a melt viscosity of from 500 to 10,000 poises and component (C) is the salt of a polyacrylic acid.
Claim 6
Dependent Claim
45 words
The composition of claim 1 wherein the heat-curable polymeric binder (B) has a melting point range of from 60* to 150*C and a melt viscosity at 125*C of from 500 to 10,000 poises and at 125*C does not exceed 10,000 poises until after three minutes.
Claim 7
Dependent Claim
39 words
The composition of claim 1 wherein the heat-curable polymeric binder (B) contains at least one functional grouping from the group consisting of hydroxyl, carboxyl, epoxide, amide, amino, isocyanato, active methlene, anhydride, methylol, methylol ether and an ethylenically unsaturated grouping.
Claim 8
Dependent Claim
21 words
The composition of claim 1 wherein component (B) is an Epoxy resin having an epoxide value of from 0.02 to 0.4.
Claim 9
Dependent Claim
56 words
The composition of claim 1 wherein component (B) is a mixture of from 60 to 95 parts of a polyester based on isophthalic acid, adipic acid, neopentyl glycol and trimellitic anhydride which has an acid number of from 40 to 60 and 5 to 40 parts of at least one epoxy resin based on 2,2''-bis (4-hydroxyphenyl)-propane.
Claim 10
Dependent Claim
36 words
The composition of claim 1 wherein component (B) is a mixture of at least one saturated polyester having a hydroxyl number of from 20 to 250 with a diisocyanate or triisocyanate which is blocked by caprolactam.
Claim 11
Dependent Claim
21 words
The composition of claim 1 wherein component (A) contains up to 5% by weight of a inert water-miscible volatile organic solvent.
Claim 12
Dependent Claim
20 words
The composition of claim 2 wherein the particles of component (B) have a diameter of from 5 to 90 microns.
Claim 13
Dependent Claim
32 words
The composition of claim 2 wherein the heat-curable binder (B) has at 125*C a melt viscosity of from 500 to 10,000 poises and component (C) is a salt of a polyacrylic acid.
Claim 14
Dependent Claim
25 words
The composition of claim 2 wherein component (B) consists essentially of an epoxy resin, at least one epoxy resin hardener and at least one pigment.
Claim 15
Dependent Claim
19 words
The composition of claim 2 wherein component (B) consists essentially of a polyester, an epoxy resin and a pigment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |