Patent US2880346A successfully refreshed from Google Patents.
Patent US4512910A successfully refreshed from Google Patents.
US4512910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable compositions
Assignee: ATK Launch Systems LLC
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Filing: 1982-11-05
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Granted: 1985-04-23
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Expires: 2002-11-05
Abstract
Abstract Provided are processes for preparing compositions useful in photopolymerizable compositions, which processes comprise: A. reacting a polyether diol and an acrylic acid in about equal molar proportions; and B. 1. reacting a polyether diol and an acrylic acid in about equal molar proportions and 2. reacting the product of step B1, a hydroxyalkylacrylate and an organic diisocyanate in about equal molar proportions. Also provided are the products of these processes. These products are useful in photopolymerizable compositions which may typically contain, in addition to said products, N-vinyl-2-pyrrolidone and a photoinitiator.
Inventors
- 👤 Claude J. Schmidle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:30
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/02; C08F290/06; C08F290/062; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/672
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
30 words
A process for preparing compositions having a viscosity from about 20 to 30 poise, said process comprising: reacting a polyether diol and an acrylic acid in about equal molar proportions.
Claim 2
Dependent Claim
30 words
A process for preparing compositions having a viscosity from about 20 to 30 poise, said process comprising: reacting a polyether diol and an acrylic acid in about equal molar proportions.
Claim 3
Dependent Claim
14 words
The process of claim 1 wherein the polyether diol is a polypropylene glycol diol.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the acrylic acid is acrylic acid.
Claim 5
Dependent Claim
17 words
The process of claim 1 wherein the polyether diol is a polypropylene glycol end-capped with ethylene oxide.
Claim 6
Dependent Claim
14 words
The process of claim 4 wherein the polypropylene glycol has the average formula: ##STR6##
Claim 7
Dependent Claim
28 words
A composition having a viscosity from about 20 to 30 poise comprising the reaction product of about equal molar amounts of a polyether diol and an acrylic acid.
Claim 8
Dependent Claim
28 words
A composition having a viscosity from about 20 to 30 poise comprising the reaction product of about equal molar amounts of a polyether diol and an acrylic acid.
Claim 9
Dependent Claim
14 words
The composition of claim 6 wherein the polyether diol is a polypropylene glycol diol.
Claim 10
Dependent Claim
12 words
The composition of claim 6 wherein the acrylic acid is acrylic acid.
Claim 11
Dependent Claim
16 words
The composition of claim 6 wherein the polyether diol is polypropylene glycol end-capped with ethylene oxide.
Claim 12
Dependent Claim
14 words
The composition of claim 9 wherein the polypropylene glycol has the average formula: ##STR7##
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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |