US4880867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous coating compositions, a process for their preparation and method of using the same
Assignee: Axalta Coating Systems Germany GmbH and Co KG
•
Filing: 1987-08-18
•
Granted: 1989-11-14
•
Expires: 2007-08-18
Abstract
Abstract An aqueous coating composition is provided which comprises a film forming material based on water dilutable binders which are comprised of a mixture of (A) 90 to 40% by weight of hydroxyl group-containing polymer resin; (B) 10 to 60% by weight of polyurethane dispersion and (C) pigments; as well as optionally conventional solvents, auxiliary agents, and additives. The process for the preparation of the coating composition and a method for the application of the coating composition are also described.
Inventors
- 👤 Armin Gobel
- 👤 Knut Graff
- 👤 Hans-Ulrich Meier
- 👤 Hans-Peter Patzschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:35
CPC Classifications
C; C09; C09D; C09D175/00; C09D175/04; C09D133/00; C09D133/04; C09D133/14; C08; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
162 words
An aqueous coating composition of a non-yellowing film forming material based on water dilutable polymeric binders comprising of a mixture of (A) 90 to 40% by weight of a poly(meth)acrylate resin which contains hydroxyl groups, wherein said resin (A) has: (a) a number average molecular weight (Mn) of from 10,000 to 500,000, (b) a glass transition temperature of from -50° to +150° C., (c) an acid number of from 0 to 80 (mg KOH per g of solid resin), (d) a hydroxyl number of from 60 to 250 (mg KOH per g of solid resin) and (e) A viscosity of from 5 to 100 Pa.s (determined on a 50% solution in butoxyethanol at 25° C.), and (B) 10 to 60% by weight of an anionic polyurethane resin dispersion, having an acid number of from 5 to 50 wherein: the quantitative percentage proportions of (A) and (B) are based on their solids content of which the sum amounts to 100%, and (C) pigments.
Claim 2
Dependent Claim
162 words
An aqueous coating composition of a non-yellowing film forming material based on water dilutable polymeric binders comprising of a mixture of (A) 90 to 40% by weight of a poly(meth)acrylate resin which contains hydroxyl groups, wherein said resin (A) has: (a) a number average molecular weight (Mn) of from 10,000 to 500,000, (b) a glass transition temperature of from -50° to +150° C., (c) an acid number of from 0 to 80 (mg KOH per g of solid resin), (d) a hydroxyl number of from 60 to 250 (mg KOH per g of solid resin) and (e) A viscosity of from 5 to 100 Pa.s (determined on a 50% solution in butoxyethanol at 25° C.), and (B) 10 to 60% by weight of an anionic polyurethane resin dispersion, having an acid number of from 5 to 50 wherein: the quantitative percentage proportions of (A) and (B) are based on their solids content of which the sum amounts to 100%, and (C) pigments.
Claim 3
Dependent Claim
25 words
An aqueous coating composition according to claim 1, which also contains conventional solvents, auxiliary substances, and additives such as neutralizing agents, thickeners and crosslinking agents.
Claim 4
Dependent Claim
80 words
An aqueous coating composition according to claim 1, wherein component (A) is obtained by free radical polymerization of (a) 0 to 12% by weight of α, β-unsaturated carboxylic acids, (b) 10 to 65% by weight of monomers which contain hydroxyl groups wherein said monomers are capable of being incorporated by polymerization, (c) 0.1 to 7% by weight of polyunsaturated monomers, and (d) 16 to 90% by weight of monounsaturated monomers which contain no reactive groups other than a double bond.
Claim 5
Dependent Claim
111 words
An aqueous coating composition containing a film forming material based on water dilutable binders which are a mixture of: (A) 90 to 40% by weight of hydroxyl group containing poly(meth)acrylate resin having (a) a number average molecular weight of from 10,000 to 500,000, (b) an acid number of from 0 to 80 (mg KOH per g of solid resin), and (c) a hydroxyl number of from 60 to 250 (mg KOH per g of solid resin), and (B) 10 to 60% by weight of an anionic polyurethane dispersion the quantitative proportions of (A) and (B) being based on their solids content and their sum always amounting to 100%, and (C) pigments.
Claim 6
Dependent Claim
111 words
An aqueous coating composition containing a film forming material based on water dilutable binders which are a mixture of: (A) 90 to 40% by weight of hydroxyl group containing poly(meth)acrylate resin having (a) a number average molecular weight of from 10,000 to 500,000, (b) an acid number of from 0 to 80 (mg KOH per g of solid resin), and (c) a hydroxyl number of from 60 to 250 (mg KOH per g of solid resin), and (B) 10 to 60% by weight of an anionic polyurethane dispersion the quantitative proportions of (A) and (B) being based on their solids content and their sum always amounting to 100%, and (C) pigments.
Claim 7
Dependent Claim
73 words
Aqueous coating compositions according to claim 4 wherein component (A) is obtained by free radical polymerization of (a) 0 to 12% by weight of α, β-unsaturated carboxylic acids, (b) 10 to 65% by weight of hydroxyl group-containing monomers capable of being incorporated by polymerization, (c) 0. to 7% by weight of polyunsaturated monomers, and (d) 16 to 90% by weight of monounsaturated monomers which contain no reactive groups other than a double bond.
References Cited (Backward Citations)
US3862074A
Cited
US3907737A
Cited
US4108811A
Cited
GB1530186A
Cited
JPS50107036A
Cited
US4198330A
Cited
US4066591A
Cited
US4046729A
Cited
US4177183A
Cited
JPS5321230A
Cited
US4103050A
Cited
US4119602A
Cited
US4209435A
Cited
SU715593A1
Cited
US4339365A
Cited
US4539363A
Cited
US4403003A
Cited
JPS5761050A
Cited
US4510275A
Cited
US4442248A
Cited
US4558090A
Cited
US4489135A
Cited
US4507426A
Cited
US4576979A
Cited
DE3316550A1
Cited
DE3440535A1
Cited
DE3440534A1
Cited
US4594374A
Cited
US4622360A
Cited
JPS6157655A
Cited
US4576987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |