Patent US4612343A successfully refreshed from Google Patents.
US4612343A
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Colored polymer emulsion and process for preparation thereof
Assignee: Tosoh Corp
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Filing: 1985-07-03
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Granted: 1986-09-16
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Expires: 2005-07-03
Abstract
Abstract A colored polymer emulsion having dispersed therein particles of a copolymer having at least 2×10 -5 g-eq./g of the copolymer, of a phosphoric acid group or salt thereof. The copolymer particles have an average particle size of not larger than 1 μm and a minimum film-forming temperature of not higher than 35° C., and have been dyed with a basic dye. The emulsion is capable of forming a film having an improved water resistance and light resistance. The emulsion is prepared by polymerizing a monomer mixture comprising (a - 1) a monomer having a phosphoric acid group or a salt thereof, (a - 2) a hydrophobic monomer and (b) a optional hydrophilic monomer by an emulsion polymerization procedure, and then incorporating a basic dye to the obtained polymer emulsion, or by carrying out the emulsion polymerization in the presence of a basic dye.
Inventors
- 👤 Shuichi Okuzono
- 👤 Yasuhiro Oda
- 👤 Takashi Shintani
- 👤 Noriaki Emura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; C; C08; C08F; C08F230/00; C08F230/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
62 words
A colored polymer emulsion comprising particles of a copolymer having at least 2×10 -5 gram-equivalent, per gram of the copolymer, of a phosphoric acid group or a salt thereof, said copolymer particles having an average particle size of not larger than 1 μm and a minimum film-forming temperature of not higher than 35° C. and having been dyed with a basic dye.
Claim 2
Dependent Claim
62 words
A colored polymer emulsion comprising particles of a copolymer having at least 2×10 -5 gram-equivalent, per gram of the copolymer, of a phosphoric acid group or a salt thereof, said copolymer particles having an average particle size of not larger than 1 μm and a minimum film-forming temperature of not higher than 35° C. and having been dyed with a basic dye.
Claim 3
Dependent Claim
77 words
A colored polymer emulsion according to claim 1 wherein said copolymer is derived from, based on 100 g of the total monomers, (a) at least 90 g of a hydrophobic monomer mixture comprising (a - 1) at least 2×10 -3 gram-equivalent of a monomer having a phosphoric acid group or a salt thereof and (a - 2) at least 20 g of at least one hydrophobic monomer, and (b) 0 to 10 g of a hydrophilic monomer.
Claim 4
Dependent Claim
23 words
A colored polymer emulsion according to claim 1 wherein said copolymer particles have an average particle size of not larger than 0.3 μm.
Claim 5
Dependent Claim
32 words
A colored polymer emulsion according to claim 1 wherein said copolymer has 2×10 -5 to 2×10 -3 gram-equivalent, per gram of the copolymer, of a phosphoric acid group or a salt thereof.
Claim 6
Dependent Claim
33 words
A colored polymer emulsion according to claim 1 wherein said copolymer has 5×10 -5 to 1.3 ×10 -3 gram-equivalent, per gram of the copolymer, of a phosphoric acid group or a salt thereof.
Claim 7
Dependent Claim
40 words
A colored polymer emulsion according to claim 2 wherein said monomer having a phosphoric acid group or a salt thereof is selected from the group consisting of 2-hydroxyethylacryloyl phosphate, 2-hydroxyethylmethacryloyl phosphate, 3-chloro-2-acid-phosphoxypropyl methacrylate and their sodium, potassium, and ammonium salts.
Claim 8
Dependent Claim
78 words
A colored polymer emulsion according to claim 2 wherein said hydrophobic monomer (a - 2) is selected from the group consisting of ethylene, isobutylene, butadiene, isoprene, chloroprene, vinyl acetate, vinyl propionate, vinylidene chloride, methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, sec-butyl acrylate, t-butyl acrylate, isobutyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, n-octyl acrylate, 2-ethylhexyl acrylate, dodecyl acrylate, tetradecyl acrylate, n-propyl methacrylate, n-butyl methacrylate, t-butyl methacrylate, sec-butyl methacrylate, isobutyl methacrylate, n-hexyl methacrylate, n-octyl methacrylate, 2-ethylhexyl methacrylate, and dodecyl methacrylate.
Claim 9
Dependent Claim
36 words
A colored polymer emulsion according to claim 2 wherein said hydrophilic monomer is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, acrylamide, methacrylamide, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, aminoethyl acrylate, and aminoethyl methacrylate.
Claim 10
Dependent Claim
32 words
A colored polymer emulsion according to claim 1 wherein said copolymer has 2×10 -5 to 5×10 -4 gram-equivalent, per gram of the copolymer, of a sulfonic acid group or a salt thereof.
Claim 11
Dependent Claim
141 words
A process for the preparation of colored polymer emulsions, which comprises emulsion-polymerizing (a) at least 90 g, based on 100 g of the total monomers, of a hydrophobic monomer mixture comprising (a - 1) at least 2×10 -3 gram-equivalent of a monomer having a phosphoric acid group or salt thereof and (a - 2) at least 20 g, based on 100 g of the total monomers, of at least one hydrophobic monomer, and (b) 0 to 10 g, based on 100 g of the total monomers, of a hydrophilic monomer in 35 to 80% by weight, based on the total amount of the monomers and water, of water at a temperature of not higher than 100° C., and then incorporating a basic dye to the obtained polymer emulsion; or carrying out said emulsion polymerization in the presence of a basic dye.
Claim 12
Dependent Claim
141 words
A process for the preparation of colored polymer emulsions, which comprises emulsion-polymerizing (a) at least 90 g, based on 100 g of the total monomers, of a hydrophobic monomer mixture comprising (a - 1) at least 2×10 -3 gram-equivalent of a monomer having a phosphoric acid group or salt thereof and (a - 2) at least 20 g, based on 100 g of the total monomers, of at least one hydrophobic monomer, and (b) 0 to 10 g, based on 100 g of the total monomers, of a hydrophilic monomer in 35 to 80% by weight, based on the total amount of the monomers and water, of water at a temperature of not higher than 100° C., and then incorporating a basic dye to the obtained polymer emulsion; or carrying out said emulsion polymerization in the presence of a basic dye.
Claim 13
Dependent Claim
34 words
A process according to claim 10 wherein the amount of the monomer having a phosphoric acid group or a salt thereof is 2×10hu -5 to 2×10hu -3 gram-equivalent per gram of the resulting copolymer.
Claim 14
Dependent Claim
34 words
A process according to claim 10 wherein the amount of the monomer having a phosphoric acid group or a salt thereof is 5×10 -5 to 1.3×10 -3 gram-equivalent per gram of the resulting copolymer.
Claim 15
Dependent Claim
38 words
A process according to claim 10 wherein said monomer having a phosphoric acid group or a salt thereof is selected from the group consisting of 2-hydroxyethylacryloyl phosphate, 2-hydroxyethylmethacryloyl phosphate, 3-chloro-2-acid-phosphoxypropyl methacrylate and their sodium, potassium, and ammonium salts.
Claim 16
Dependent Claim
74 words
A process according to claim 10 wherein said hydrophobic monomer (a -2) is selected form the group consisting of ethylene, isobutylene, butadiene, isoprene, chloroprene, vinyl acetate, vinyl propionate, vinylidene chloride, methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, sec-butyl acrylate, t-butyl acrylate, isobutyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, n-octyl acrylate, 2-ethylhexyl acrylate, dodecyl acrylate, tetradecyl acrylate, n-propyl methacrylate, n-butyl methacrylate, t-butyl methacrylate, sec-butyl methacrylate, isobutyl methacrylate, n-hexyl methacrylate, n-octyl methacrylate, 2-ethylhexyl methacrylate,and dodecyl methacrylate.
Claim 17
Dependent Claim
34 words
A process according to claim 10 wherein said hydrophilic monomer is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, acrylamide, methacrylamide, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, aminoethyl acrylate, and aminoethyl methacrylate.
Claim 18
Dependent Claim
26 words
A process according to claim 10 wherein at least part of said hydrophilic monomer is a monomer having a sulfonic acid group or a salt thereof.
Claim 19
Dependent Claim
34 words
A process according to claim 16 wherein the amount of the monomer having a sulfonic acid group or a salt thereof is 2×10 -5 to 5×10 -4 gram-equivalent per gram of the resulting copolymer.
Claim 20
Dependent Claim
49 words
A process according to claim 16 wherein said monomer having a sulfonic acid group or a salt thereof is selected from the group consisting of vinylsulfonic acid, allylsulfonic acid, methallylsulfonic acid, styrene-sulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, vinylbenzylsulfonic acid, acryloyloxyethylsulfonic acid, methacryloyloxyethylsulfonic acid, and their lithium, sodium, potassium, and ammonium salts.
Claim 21
Dependent Claim
29 words
A process according to claim 10 wherein said emulsion polymerization is carried out in the presence of a basic dye and at a pH value of 2 to 7.
Claim 22
Dependent Claim
24 words
A process according to claim 10 wherein a basic dye is incorporated in the polymer emulsion at a pH value of 2 to 7.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |