US4421619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic plastisols and organosols and photosensitive compositions and elements made therefrom
Assignee: EIDP Inc
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Filing: 1981-11-02
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Granted: 1983-12-20
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Expires: 2001-11-02
Abstract
Abstract Thermally coalescible acrylic resin dispersions comprising particles of single-phase, surfactant-free, random acrylic polymers or copolymers, containing at least 80% by weight of acrylic units, dispersed in a surfactant-free medium that comprises a compatible liquid plasticizer that is nonvolatile at room temperature and is not a monomer of any of the polymeric components. Incorporation of a photopolymerizable, ethylenically unsaturated compound provides photosensitive dispersions useful for making relief and planographic printing plates, photoresists, and the like.
Inventors
- 👤 Boynton Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:09
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08F; C08F2/00; C08F2/44; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/14; C08F265/00; C08F265/04; C08J2333/00; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/113
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
A composition containing thermally coalescible acrylic resin plastisol or organosol dispersion comprising particles having a mean diameter in the range of 0.1 to 20 μm of a single-phase, surfactant-free, homopolymer, random bipolymer or tripolymer of acrylic monomer(s) selected from the group consisting of ethylacrylate, methyl methacrylate and methacrylic acid dispersed in a surfactant-free medium that comprises a compatible liquid plasticizer that is nonvolatile at room temperature and is not a monomer of any of the polymeric components, the weight ratio of said particles to said plasticizer being from 40/60 to 90/10, and, in addition, a nonvolatile photopolymerizable ethylenically unsaturated monomeric compound which is not a monomer of any of the polymeric components and at least one photoinitiator.
Claim 2
Dependent Claim
117 words
A composition containing thermally coalescible acrylic resin plastisol or organosol dispersion comprising particles having a mean diameter in the range of 0.1 to 20 μm of a single-phase, surfactant-free, homopolymer, random bipolymer or tripolymer of acrylic monomer(s) selected from the group consisting of ethylacrylate, methyl methacrylate and methacrylic acid dispersed in a surfactant-free medium that comprises a compatible liquid plasticizer that is nonvolatile at room temperature and is not a monomer of any of the polymeric components, the weight ratio of said particles to said plasticizer being from 40/60 to 90/10, and, in addition, a nonvolatile photopolymerizable ethylenically unsaturated monomeric compound which is not a monomer of any of the polymeric components and at least one photoinitiator.
Claim 3
Dependent Claim
17 words
A dispersion according to claim 1 wherein the monomeric compound is a polyfunctional acrylic or methacrylic monomer.
Claim 4
Dependent Claim
13 words
A dispersion according to claim 2 wherein the monomeric compound is trimethylolpropane triacrylate.
Claim 5
Dependent Claim
13 words
A dispersion according to claim 2 wherein the monomeric compound is trimethylolpropane trimethacrylate.
Claim 6
Dependent Claim
14 words
A dispersion according to claim 2 wherein the monomeric compound is triethylene glycol diacrylate.
Claim 7
Dependent Claim
14 words
A dispersion according to claim 2 wherein the monomeric compound is triethylene glycol dimethacrylate.
Claim 8
Dependent Claim
14 words
A dispersion according to claim 2 wherein the monomeric compound is polyethylene glycol diacrylate.
Claim 9
Dependent Claim
14 words
A dispersion according to claim 2 wherein the monomeric compound is ethoxylated trimethylolpropane triacrylate.
Claim 10
Dependent Claim
18 words
A photopolymerizable element which comprises a support bearing a coalesced layer of the composition according to claim 1.
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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |