US3734867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing porous polymerizates from water-in-oil emulsions
Assignee: Individual
•
Filing: 1971-12-17
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Granted: 1973-05-22
•
Expires: 1991-12-17
Abstract
Abstract Polymerization of water-in-oil emulsions which contain a polymerizable monomer, a water-in-oil emulsifier, and an oil-inwater emulsifier (in an amount less than that required to break the emulsion) is disclosed. Various products and fields of application are also disclosed, including especially the manufacture of shaped products.
Inventors
- 👤 G Will
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:57
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/28; C08J9/283; C08F; C08F2/00; C08F2/32; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
17 words
An emulsion in accordance with claim 1 wherein said at least one ethylenically unsaturated compound includes styrene.
Claim 2
Dependent Claim
22 words
An emulsion in accordance with claim 1 wherein said at least one ethylenically unsaturated compound includes unsaturated polyester resin dissolved in styrene.
Claim 3
Dependent Claim
36 words
An emulsion in accordance with claim 1 wherein the amount of said oil-in-water emulsifier represents 25 to 80 percent by weight of the total quantity of said emulsifier required to produce incipient breaking of the emulsion.
Claim 4
Dependent Claim
20 words
An emulsion in accordance with claim 1, the water droplets in which are substantially 50 microns or less in size.
Claim 5
Dependent Claim
15 words
An emulsion in accordance with claim 1 wherein said emulsion contains a polymeric water-in-oil emulsifier.
Claim 6
Dependent Claim
27 words
An emulsion in accordance with claim 6 wherein said polymeric emulsifier contains, per 100 weight parts of polymer, 1.0 to 4.0 parts by weight of OH groups.
Claim 7
Dependent Claim
27 words
An emulsion in accordance with claim 6 wherein said polymeric emulsifier contains, per 100 weight parts of polymer, 0.3 to 7.5 parts by weight of -SO3H groups.
Claim 8
Dependent Claim
27 words
An emulsion in accordance with claim 6 wherein said polymeric emulsifier contains, per 100 weight parts of polymer, 0.6 to 2.0 parts by weight of -SO3Na groups.
Claim 9
Dependent Claim
27 words
An emulsion in accordance with claim 6 wherein said polymeric emulsifier contains, per 100 weight parts of polymer, 1.0 to 6.0 parts by weight of SO4 groups.
Claim 10
Dependent Claim
27 words
An emulsion in accordance with claim 6 wherein said polymeric emulsifier contains, per 100 weight parts of polymer, 0.5 to 10.0 Parts by weight of -CONH2 groups.
Claim 11
Dependent Claim
14 words
An emulsion in accordance with claim 6 wherein said water-in-oil emulsifier is a polyester.
Claim 12
Dependent Claim
32 words
An emulsion in accordance with claim 1 wherein said water-in-oil emulsifier is employed in an amount in the range of about 0.1 to 10 percent by weight based on the oil phase.
Claim 13
Dependent Claim
52 words
An emulsion in accordance with claim 1 wherein said water-in-oil emulsifier is at least one non-polymeric emulsifier selected from the group consisting of hexadecyl sodium phthalate, sorbitan monooleate, sorbitan monostearate, cetyl sodium phthalate, stearyl sodium phthalate, high molecular weight alcohols, alkaline earth metal soaps, aluminum soaps, fatty acid anilides, sterines and steroids.
Claim 14
Dependent Claim
70 words
An emulsion according to claim 1 wherein said oil-in-water emulsifier is at least one member selected from the group consisting of: a. an alkylphenylpolyglycolether b. tetraethanolamine-tetrapropylene-benzenesulfonate c. a fatty acid condensation product known as Hostapon d. common soap e. commercially available wetting agent mixtures of higher molecular weight alkylsulfate, alkylbenzene sulfate and electrolyte f. fatty alcohol sulfonate alone or in commercially available wetting agent mixtures with long chain alkylaryl sulfonates.
References Cited (Backward Citations)
US3256219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |