US4035320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable compositions
Assignee: Union Camp Corp
•
Filing: 1975-08-14
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Granted: 1977-07-12
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Expires: 1995-08-14
Abstract
Abstract Disclosure is made of radiation curable, solventless compositions useful in coatings, films and in preparing printing inks. The compositions comprise the reaction product of an equivalent excess of an acrylic type acid with a particular class of polyester polyol. The polyester polyol is the condensation product of an excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of from 60 to 250 with a specific class of aliphatic polycarboxylic acids derived from fatty and resin acids.
Inventors
- 👤 Nelson E. Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/47; Y; Y10; Y10S; Y10S260/00; Y10S260/38; Y10S522/00; Y10S522/909
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
The polyacrylate reaction product of, (a) an equivalent excess of an acrylic compound of the formula: ##STR2## wherein R is selected from hydrogen and methyl; R' is selected from hydrogen, methyl and ethyl; and (b) a polyester polyol obtained by the condensation of (i) an aliphatic polycarboxylic acid having a molecular weight of at least 325 and at least 19 carbon atoms, inclusive; with (ii) an equivalent excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of between about 60 to about 250; said reaction of (a) and (b) being under conditions wherein said acrylic compound does not polymerize.
Claim 2
Dependent Claim
105 words
The polyacrylate reaction product of, (a) an equivalent excess of an acrylic compound of the formula: ##STR2## wherein R is selected from hydrogen and methyl; R' is selected from hydrogen, methyl and ethyl; and (b) a polyester polyol obtained by the condensation of (i) an aliphatic polycarboxylic acid having a molecular weight of at least 325 and at least 19 carbon atoms, inclusive; with (ii) an equivalent excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of between about 60 to about 250; said reaction of (a) and (b) being under conditions wherein said acrylic compound does not polymerize.
Claim 3
Dependent Claim
9 words
The product of claim 1 wherein R is hydrogen.
Claim 4
Dependent Claim
9 words
The product of claim 1 wherein R is methyl.
Claim 5
Dependent Claim
28 words
The product of claim 1 wherein hydroxyl groups are capped by reaction with the anhydride of a monobasic carboxylic acid having from 2 to 6 carbon atoms, inclusive.
Claim 6
Dependent Claim
14 words
The product of claim 1 wherein said polycarboxylic acid is a polymerized fatty acid.
Claim 7
Dependent Claim
11 words
The product of claim 1 wherein said aliphatic polyol is trimethylolpropane.
Claim 8
Dependent Claim
11 words
The product of claim 1 wherein said aliphatic polyol is pentaerythritol.
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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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |