US4309331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfactant-free acrylic plastisols and organosols compositions
Assignee: EIDP Inc
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Filing: 1978-10-18
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Granted: 1982-01-05
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Expires: 1998-10-18
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 17:40
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/18; C08F; C08F2/00; C08F2/44; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/14; C08F265/00; C08F265/04; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033; C08J2333/00; Y; Y10; Y10S; Y10S526/00; Y10S526/909; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
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 consisting of ethyl acrylate, methyl acrylate 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.
Claim 2
Dependent Claim
81 words
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 consisting of ethyl acrylate, methyl acrylate 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.
Claim 3
Dependent Claim
26 words
A dispersion according to claim 1 wherein the acrylic resin is taken from polymers and copolymers of acrylic and methacrylic acids and esters of said acids.
Claim 4
Dependent Claim
22 words
A dispersion according to claim 1 wherein the mean diameter of the particles is in the range of 0.1 to 20 μm.
Claim 5
Dependent Claim
28 words
A dispersion according to claim 1 wherein the plasticizer is present in an amount of 40 to 60% by weight of the acrylic polymer or copolymer and plasticizer.
Claim 6
Dependent Claim
31 words
A dispersion according to claim 1 wherein there is present in the liquid phase a volatile component in an amount greater than 10% by weight based on the total dispersion weight.
Claim 7
Dependent Claim
18 words
A dispersion according to claim 5 wherein the volatile component is a solvent for the acrylic polymer component.
Claim 8
Dependent Claim
19 words
A dispersion according to claim 5 wherein the volatile component is a swelling agent for the acrylic polymer component.
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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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |