US4110288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous vinyl polymeric emulsion system and process of preparing the same using aminoplast resin
Assignee: Wyeth Holdings LLC
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Filing: 1976-09-01
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Granted: 1978-08-29
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Expires: 1996-09-01
Abstract
Abstract An aqueous vinyl polymeric emulsion system prepared by polymerizing at least one polymerizable vinyl monomer in an aqueous emulsion system in the presence of an emulsifying agent, a polymerization catalyst and from about 0.1% to about 5%, by weight, based on the total weight of the monomer solids being polymerized, of a non-copolymerizable aminoplast resin.
Inventors
- 👤 Peter J. Schirmann
- 👤 Werner J. Blank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:35
CPC Classifications
C; C08; C08F; C08F283/00; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
87 words
A process for preparing an aqueous emulsion of a vinyl polymer comprising polymerizing at least one polymerizable vinyl monomer in an aqueous emulsion system in the presence of an emulsifying agent, a polymerization catalyst and from about 0.1% to about 5%, by weight, based on the weight of the monomer being polymerized, of a non-copolymerizable aminoplast resin which is water-soluble or water-dispersible in the presence of the emulsifying agent and which has been prepared from an amino compound, formaldehyde and a C 1 -C 4 monohydric alcohol.
Claim 2
Dependent Claim
87 words
A process for preparing an aqueous emulsion of a vinyl polymer comprising polymerizing at least one polymerizable vinyl monomer in an aqueous emulsion system in the presence of an emulsifying agent, a polymerization catalyst and from about 0.1% to about 5%, by weight, based on the weight of the monomer being polymerized, of a non-copolymerizable aminoplast resin which is water-soluble or water-dispersible in the presence of the emulsifying agent and which has been prepared from an amino compound, formaldehyde and a C 1 -C 4 monohydric alcohol.
Claim 3
Dependent Claim
16 words
A process according to claim 1 in which a plurality of polymerizable vinyl monomers is used.
Claim 4
Dependent Claim
19 words
A process according to claim 2 in which at least one of the vinyl monomers is an acrylic monomer.
Claim 5
Dependent Claim
16 words
A process according to claim 2 in which one of the vinyl monomers is vinyl acetate.
Claim 6
Dependent Claim
15 words
A process according to claim 3 in which the acrylic monomer is a hard monomer.
Claim 7
Dependent Claim
35 words
A process according to claim 3 in which the acrylic monomer is a functional monomer and is present in an amount up to 15%, by weight, based on the total weight of vinyl monomers present.
Claim 8
Dependent Claim
15 words
A process according to claim 3 in which the acrylic monomer is a soft monomer.
Claim 9
Dependent Claim
56 words
A process according to claim 3 in which there is present (A) up to 85 %, by weight, of a hard monomer (B) up to 85%, by weight, of a soft monomer and (C) up to 15%, by weight, of a functional monomer, wherein the total percentages of (A), (B) and (C), by weight, total 100%.
Claim 10
Dependent Claim
19 words
A process according to claim 3 in which the monomers are butyl acrylate, methyl methacrylate, acrylonitrile and methacrylic acid.
Claim 11
Dependent Claim
79 words
An aqueous emulsion of a vinyl polymer, said emulsion being produced by polymerizing at least one polymerizable vinyl monomer in an aqueous emulsion system in the presence of from about 0.1% to about 5%, by weight, based on the weight of monomer being polymerized of a non-copolymerizable aminoplast resin which is water-soluble or water-dispersible in the presence of the emulsifying agent and which has been prepared from an amino compound, formaldehyde and a C 1 -C 4 monohydric alcohol.
Claim 12
Dependent Claim
79 words
An aqueous emulsion of a vinyl polymer, said emulsion being produced by polymerizing at least one polymerizable vinyl monomer in an aqueous emulsion system in the presence of from about 0.1% to about 5%, by weight, based on the weight of monomer being polymerized of a non-copolymerizable aminoplast resin which is water-soluble or water-dispersible in the presence of the emulsifying agent and which has been prepared from an amino compound, formaldehyde and a C 1 -C 4 monohydric alcohol.
Claim 13
Dependent Claim
11 words
The process of claim 1 wherein said amino compound is melamine.
Claim 14
Dependent Claim
17 words
The process of claim 9 wherein the aminoplast resin has been prepared from melamine, formaldehyde and methanol.
Claim 15
Dependent Claim
19 words
The emulsion of claim 10 wherein butyl acrylate, methyl methacrylate, acrylonitrile and methacrylic acid are utilized as vinyl monomers.
Claim 16
Dependent Claim
18 words
The emulsion of claim 12 in which the aminoplast resin has been prepared from melamine, formaldehyde and methanol.
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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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |