Patent US4168255A successfully refreshed from Google Patents.
US4168255A
Expired / Lapsed
US
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Oligomeric aqueous finishes
Assignee: Rohm and Haas Co
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Filing: 1976-04-13
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Granted: 1979-09-18
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Expires: 1996-04-13
Abstract
Abstract This invention discloses the composition and use of salts of low molecular weight polymers of methacrylic and acrylic esters formulated with wetting, emulsifying, plasticizing or coalescing agents as aqueous finish compositions for hard surfaces. The polymers have molecular weights between 700 and 5000 and acid numbers between 50 and 275. The finishes produced by the compositions are water clear and are self-dispersible. Thus, on reapplication, the previous film is dissolved, the embedded soil removed and a fresh film left.
Inventors
- 👤 Sheldon N. Lewis
- 👤 Richard A. Haggard
- 👤 David R. Gehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:25
CPC Classifications
C; C09; C09G; C09G1/00; C09G1/06; C09G1/14; C09G1/16; C08; C08L; C08L33/00; C09G1/04; Y; Y10; Y10S; Y10S524/00; Y10S524/914
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
115 words
An aqueous finish composition which comprises (A) an at least partly neutralized alkoxide-polymerized polymer having mer units of methacrylic acid and at least one ester of methacrylic acid, the acid units having been produced by partial hydrolysis of ester units, thepolymer having an average carboxyl content of at least about 2, an average chain length, n, of from about 6 to about 35 mer units per molecule and wherein at least about 85% by weight of the molecules have chain lengths of about √2n to about 2n mers, and (B) one or more agents selected from the group wetting, emulsifying, plasticizing and coalescing agents in the amount of 0.1% to 90% of (A) by weight.
Claim 2
Dependent Claim
115 words
An aqueous finish composition which comprises (A) an at least partly neutralized alkoxide-polymerized polymer having mer units of methacrylic acid and at least one ester of methacrylic acid, the acid units having been produced by partial hydrolysis of ester units, thepolymer having an average carboxyl content of at least about 2, an average chain length, n, of from about 6 to about 35 mer units per molecule and wherein at least about 85% by weight of the molecules have chain lengths of about √2n to about 2n mers, and (B) one or more agents selected from the group wetting, emulsifying, plasticizing and coalescing agents in the amount of 0.1% to 90% of (A) by weight.
Claim 3
Dependent Claim
33 words
The composition of claim 1 wherein the polymer is a partially hydrolyzed polymer of at least one ester of methacrylic acid and has an average carboxyl content between about 2 and about 5.
Claim 4
Dependent Claim
62 words
The composition of claim 2 wherein the polymer salt has the following structural formula: ##STR3## wherein RO is a residue of a chain-regulating alcohol; R 1 is alkyl, substituted alkyl or a positively charged counterion derived from an alkali metal, hydrogen, ammonia or an amine; x is an integer; and the average value of x is from about 6 to about 35.
Claim 5
Dependent Claim
30 words
The composition of claim 3 wherein the polymer has an acid number from about 50 to about 275 and a weight average molecular weight from about 700 to about 3500.
Claim 6
Dependent Claim
28 words
The composition of claim 4 wherein the acid number is from about 50 to about 80 and the weight average molecular weight from about 1500 to about 3000.
Claim 7
Dependent Claim
28 words
The composition of claim 4 wherein the acid number is from about 100 to about 135 and the weight average molecular weight from about 1300 to about 1800.
Claim 8
Dependent Claim
28 words
The composition of claim 4 wherein the acid number is from about 80 to about 150 and the weight average molecular weight from about 1000 to about 2000.
Claim 9
Dependent Claim
27 words
The composition of claim 7 wherein component (B) comprises a nonionic wetting agent having multiple oxyethylene mers and an HLB value between about 5 and about 15.
Claim 10
Dependent Claim
20 words
The composition of claim 2 wherein the wetting agent is from about 10% to about 35% of (A) by weight.
Claim 11
Dependent Claim
20 words
The composition of claim 9 wherein the wetting agent is nonionic wetting agent having up to about 14 oxyethylene mers.
Claim 12
Dependent Claim
40 words
The composition of claim 5 wherein the acid number is from about 55 to about 70, the weight average molecular weight is from about 2000 to about 2500, and the average carboxyl content is from about 2.5 to about 3.5.
Claim 13
Dependent Claim
17 words
The composition of claim 6 wherein the average carboxyl content is from about 3.5 to about 4.2.
Claim 14
Dependent Claim
40 words
The composition of claim 7 wherein the acid number is from about 80 to about 125, the weight average molecular weight is from about 1000 to about 1700, and the average carboxyl content is from about 3.0 to about 3.5.
Claim 15
Dependent Claim
38 words
The composition of claim 13 wherein component (B) comprises an ethylene oxide adduct of an alkyl phenol, having about 14 to about 18 carbon atoms; and the adduct having an HLB value between about 9 and about 11.
Claim 16
Independent Claim
196 words
A method of coating a hard substrate with an aqueous composition consisting essentially of: (A) about 25 to 100 parts by weight of an addition polymer comprising mers derivable from an α, β-monoethylenically unsaturated acid and at least 25 mole percent of mers having the structure ##STR4## wherein W is hydrogen or methyl, Y is alkyl or substituted alkyl; the polymer being a copolymer of about 6% to about 23% by weight of acrylic or methacrylic acids or a mixture thereof; the polymer having a weight average molecular weight from about 700 to about 5000 and being at least partly neutralized; (B) 0 to about 25 parts by weight of a wax; (C) 0 to about 50 parts by weight of an alkali soluble resin; (D) about 0.1% to about 90% by weight of the sum of (A), (B) and (C) of one or more wetting, emulsifying, plasticizing or coalescent agents; (E) 0 to about 5% by weight of (A) of a polyvalent metal compounds; and (F) water to make the total solids 1% to 45% by weight; which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 17
Independent Claim
196 words
A method of coating a hard substrate with an aqueous composition consisting essentially of: (A) about 25 to 100 parts by weight of an addition polymer comprising mers derivable from an α, β-monoethylenically unsaturated acid and at least 25 mole percent of mers having the structure ##STR4## wherein W is hydrogen or methyl, Y is alkyl or substituted alkyl; the polymer being a copolymer of about 6% to about 23% by weight of acrylic or methacrylic acids or a mixture thereof; the polymer having a weight average molecular weight from about 700 to about 5000 and being at least partly neutralized; (B) 0 to about 25 parts by weight of a wax; (C) 0 to about 50 parts by weight of an alkali soluble resin; (D) about 0.1% to about 90% by weight of the sum of (A), (B) and (C) of one or more wetting, emulsifying, plasticizing or coalescent agents; (E) 0 to about 5% by weight of (A) of a polyvalent metal compounds; and (F) water to make the total solids 1% to 45% by weight; which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 18
Dependent Claim
82 words
The method of claim 15 in which the polymer of component (A) consists essentially of mers having the structures ##STR5## wherein W and Y are as defined in claim 15, Z is a positively charged counterion derived from an alkali metal, hydrogen, ammonia or an amine and optionally a minor amount of mers derived from acrylonitrile, methacrylonitrile, vinyl acetate, styrene, vinyl toluene, vinyl chloride or vinylidene chloride, and the average carboxyl content of the polymer is from about 2 to about 5.
Claim 19
Dependent Claim
48 words
The method of claim 16 in which component (A) has an acid number from about 100 to about 135, a weight average molecular weight from about 1300 to about 2500, and an average carboxyl content from about 3.5 to about 4.2; and the hard substrate is a floor.
Claim 20
Dependent Claim
48 words
The method of claim 16 in which component (A) has an acid number from about 55 to about 70, a weight average molecular weight from about 2000 to about 4000, and an average carboxyl content from about 2.5 to about 3.5; and the hard substrate is a floor.
Claim 21
Dependent Claim
41 words
The method of claim 16 in which component (A) has an acid number from about 80 to about 125, a weight average molecular weight from about 1000 to about 2500, and an average carboxyl content from about 3.0 to about 3.5.
Claim 22
Dependent Claim
18 words
The method of claim 19 in which component (D) comprises a nonionic wetting agent having multiple oxyethylene mers.
Claim 23
Dependent Claim
31 words
The method of claim 20 in which the wetting agent is from about 10% to about 35% of component (A) and has an HLB value between about 5 and about 15.
Claim 24
Dependent Claim
17 words
The method of claim 21 in which the wetting agent has up to about 14 oxyethylene mers.
Claim 25
Dependent Claim
23 words
The method of claim 22 in which the wetting agent also comprises an alkyl phenoxy unit, and the hard substrate is a wall.
Claim 26
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 1 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 27
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 4 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 28
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 5 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 29
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 6 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 30
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 7 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 31
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 16 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 32
Dependent Claim
30 words
A method of coating a substrate with the composition of claim 14 which comprises the steps of applying a layer of said composition to said substrate and curing the coating.
Claim 33
Dependent Claim
29 words
The method of claim 15 wherein the polymer of component (A) is a copolymer of about 10% to about 18% of acrylic or methacrylic acids or a mixture thereof.
Claim 34
Dependent Claim
28 words
The method of claim 15 wherein the aqueous composition comprises (E) about 0.05 to 0.5 chemical equivalents of a polyvalent metal per acid mer of the addition polymer.
Claim 35
Dependent Claim
23 words
The composition of claim 1 additionly comprising about 0.05 to 0.5 chemical equivalents of a polyvalent metal per acid mer of the polymer.
References Cited (Backward Citations)
US4103093A
Cited
US4013607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-17 | 1983-03-19 | 1983-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-17 | 1987-03-19 | 1987-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-17 | 1991-03-19 | 1991-09-18 | $7700.00 | Window Closed / Lapsed |